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gecko-dev/dom/indexedDB/ActorsParent.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ActorsParent.h"
#include <algorithm>
#include <stdint.h> // UINTPTR_MAX, uintptr_t
#include "FileInfo.h"
#include "FileManager.h"
#include "IDBObjectStore.h"
#include "IDBTransaction.h"
#include "IndexedDatabase.h"
#include "IndexedDatabaseInlines.h"
#include "IndexedDatabaseManager.h"
#include "js/StructuredClone.h"
#include "js/Value.h"
#include "jsapi.h"
#include "KeyPath.h"
#include "mozilla/Attributes.h"
#include "mozilla/AutoRestore.h"
#include "mozilla/Casting.h"
#include "mozilla/CheckedInt.h"
#include "mozilla/CycleCollectedJSRuntime.h"
#include "mozilla/EndianUtils.h"
#include "mozilla/ErrorNames.h"
#include "mozilla/LazyIdleThread.h"
#include "mozilla/Maybe.h"
#include "mozilla/Preferences.h"
#include "mozilla/SnappyCompressOutputStream.h"
#include "mozilla/SnappyUncompressInputStream.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/storage.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Unused.h"
#include "mozilla/UniquePtrExtensions.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/FileBlobImpl.h"
#include "mozilla/dom/StructuredCloneTags.h"
#include "mozilla/dom/TabParent.h"
#include "mozilla/dom/filehandle/ActorsParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBCursorParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBDatabaseParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBDatabaseFileParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBDatabaseRequestParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBFactoryParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBFactoryRequestParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBRequestParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBTransactionParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBVersionChangeTransactionParent.h"
#include "mozilla/dom/indexedDB/PBackgroundIndexedDBUtilsParent.h"
#include "mozilla/dom/indexedDB/PIndexedDBPermissionRequestParent.h"
#include "mozilla/dom/IPCBlobUtils.h"
#include "mozilla/dom/ipc/IPCBlobInputStreamParent.h"
#include "mozilla/dom/quota/Client.h"
#include "mozilla/dom/quota/FileStreams.h"
#include "mozilla/dom/quota/OriginScope.h"
#include "mozilla/dom/quota/QuotaCommon.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/dom/quota/UsageInfo.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "mozilla/ipc/InputStreamParams.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/ipc/PBackground.h"
#include "mozilla/ipc/PBackgroundParent.h"
#include "mozilla/Scoped.h"
#include "mozilla/storage/Variant.h"
#include "nsAutoPtr.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsClassHashtable.h"
#include "nsCOMPtr.h"
#include "nsDataHashtable.h"
#include "nsEscape.h"
#include "nsHashKeys.h"
#include "nsNetUtil.h"
#include "nsIAsyncInputStream.h"
#include "nsISimpleEnumerator.h"
#include "nsIEventTarget.h"
#include "nsIFile.h"
#include "nsIFileURL.h"
#include "nsIFileProtocolHandler.h"
#include "nsIInputStream.h"
#include "nsIInterfaceRequestor.h"
#include "nsInterfaceHashtable.h"
#include "nsIOutputStream.h"
#include "nsIPipe.h"
#include "nsIPrincipal.h"
#include "nsIScriptSecurityManager.h"
#include "nsISupports.h"
#include "nsISupportsImpl.h"
#include "nsISupportsPriority.h"
#include "nsIThread.h"
#include "nsITimer.h"
#include "nsIURI.h"
#include "nsIURIMutator.h"
#include "nsNetUtil.h"
#include "nsPrintfCString.h"
#include "nsQueryObject.h"
#include "nsRefPtrHashtable.h"
#include "nsStreamUtils.h"
#include "nsString.h"
#include "nsStringStream.h"
#include "nsThreadPool.h"
#include "nsThreadUtils.h"
#include "nsXPCOMCID.h"
#include "PermissionRequestBase.h"
#include "ProfilerHelpers.h"
#include "prsystem.h"
#include "prtime.h"
#include "ReportInternalError.h"
#include "snappy/snappy.h"
#define DISABLE_ASSERTS_FOR_FUZZING 0
#if DISABLE_ASSERTS_FOR_FUZZING
# define ASSERT_UNLESS_FUZZING(...) \
do { \
} while (0)
#else
# define ASSERT_UNLESS_FUZZING(...) MOZ_ASSERT(false, __VA_ARGS__)
#endif
#define IDB_DEBUG_LOG(_args) \
MOZ_LOG(IndexedDatabaseManager::GetLoggingModule(), LogLevel::Debug, _args)
#if defined(MOZ_WIDGET_ANDROID)
# define IDB_MOBILE
#endif
namespace mozilla {
MOZ_TYPE_SPECIFIC_SCOPED_POINTER_TEMPLATE(ScopedPRFileDesc, PRFileDesc,
PR_Close);
namespace dom {
namespace indexedDB {
using namespace mozilla::dom::quota;
using namespace mozilla::ipc;
using mozilla::dom::quota::Client;
namespace {
class ConnectionPool;
class Cursor;
class Database;
struct DatabaseActorInfo;
class DatabaseFile;
class DatabaseLoggingInfo;
class DatabaseMaintenance;
class Factory;
class Maintenance;
class MutableFile;
class OpenDatabaseOp;
class TransactionBase;
class TransactionDatabaseOperationBase;
class VersionChangeTransaction;
/*******************************************************************************
* Constants
******************************************************************************/
// If JS_STRUCTURED_CLONE_VERSION changes then we need to update our major
// schema version.
static_assert(JS_STRUCTURED_CLONE_VERSION == 8,
"Need to update the major schema version.");
// Major schema version. Bump for almost everything.
const uint32_t kMajorSchemaVersion = 26;
// Minor schema version. Should almost always be 0 (maybe bump on release
// branches if we have to).
const uint32_t kMinorSchemaVersion = 0;
// The schema version we store in the SQLite database is a (signed) 32-bit
// integer. The major version is left-shifted 4 bits so the max value is
// 0xFFFFFFF. The minor version occupies the lower 4 bits and its max is 0xF.
static_assert(kMajorSchemaVersion <= 0xFFFFFFF,
"Major version needs to fit in 28 bits.");
static_assert(kMinorSchemaVersion <= 0xF,
"Minor version needs to fit in 4 bits.");
const int32_t kSQLiteSchemaVersion =
int32_t((kMajorSchemaVersion << 4) + kMinorSchemaVersion);
const int32_t kStorageProgressGranularity = 1000;
// Changing the value here will override the page size of new databases only.
// A journal mode change and VACUUM are needed to change existing databases, so
// the best way to do that is to use the schema version upgrade mechanism.
const uint32_t kSQLitePageSizeOverride =
#ifdef IDB_MOBILE
2048;
#else
4096;
#endif
static_assert(kSQLitePageSizeOverride == /* mozStorage default */ 0 ||
(kSQLitePageSizeOverride % 2 == 0 &&
kSQLitePageSizeOverride >= 512 &&
kSQLitePageSizeOverride <= 65536),
"Must be 0 (disabled) or a power of 2 between 512 and 65536!");
// Set to -1 to use SQLite's default, 0 to disable, or some positive number to
// enforce a custom limit.
const int32_t kMaxWALPages = 5000; // 20MB on desktop, 10MB on mobile.
// Set to some multiple of the page size to grow the database in larger chunks.
const uint32_t kSQLiteGrowthIncrement = kSQLitePageSizeOverride * 2;
static_assert(kSQLiteGrowthIncrement >= 0 &&
kSQLiteGrowthIncrement % kSQLitePageSizeOverride == 0 &&
kSQLiteGrowthIncrement < uint32_t(INT32_MAX),
"Must be 0 (disabled) or a positive multiple of the page size!");
// The maximum number of threads that can be used for database activity at a
// single time.
const uint32_t kMaxConnectionThreadCount = 20;
static_assert(kMaxConnectionThreadCount, "Must have at least one thread!");
// The maximum number of threads to keep when idle. Threads that become idle in
// excess of this number will be shut down immediately.
const uint32_t kMaxIdleConnectionThreadCount = 2;
static_assert(kMaxConnectionThreadCount >= kMaxIdleConnectionThreadCount,
"Idle thread limit must be less than total thread limit!");
// The length of time that database connections will be held open after all
// transactions have completed before doing idle maintenance.
const uint32_t kConnectionIdleMaintenanceMS = 2 * 1000; // 2 seconds
// The length of time that database connections will be held open after all
// transactions and maintenance have completed.
const uint32_t kConnectionIdleCloseMS = 10 * 1000; // 10 seconds
// The length of time that idle threads will stay alive before being shut down.
const uint32_t kConnectionThreadIdleMS = 30 * 1000; // 30 seconds
#define SAVEPOINT_CLAUSE "SAVEPOINT sp;"
const uint32_t kFileCopyBufferSize = 32768;
#define JOURNAL_DIRECTORY_NAME "journals"
const char kFileManagerDirectoryNameSuffix[] = ".files";
const char kSQLiteSuffix[] = ".sqlite";
const char kSQLiteJournalSuffix[] = ".sqlite-journal";
const char kSQLiteSHMSuffix[] = ".sqlite-shm";
const char kSQLiteWALSuffix[] = ".sqlite-wal";
const char kPrefIndexedDBEnabled[] = "dom.indexedDB.enabled";
const char kPrefFileHandleEnabled[] = "dom.fileHandle.enabled";
#define IDB_PREFIX "indexedDB"
#define PERMISSION_STRING_CHROME_BASE IDB_PREFIX "-chrome-"
#define PERMISSION_STRING_CHROME_READ_SUFFIX "-read"
#define PERMISSION_STRING_CHROME_WRITE_SUFFIX "-write"
// The deletion marker file is created before RemoveDatabaseFilesAndDirectory
// begins deleting a database. It is removed as the last step of deletion. If a
// deletion marker file is found when initializing the origin, the deletion
// routine is run again to ensure that the database and all of its related files
// are removed. The primary goal of this mechanism is to avoid situations where
// a database has been partially deleted, leading to inconsistent state for the
// origin.
#define IDB_DELETION_MARKER_FILE_PREFIX "idb-deleting-"
#ifdef DEBUG
const int32_t kDEBUGThreadPriority = nsISupportsPriority::PRIORITY_NORMAL;
const uint32_t kDEBUGThreadSleepMS = 0;
const int32_t kDEBUGTransactionThreadPriority =
nsISupportsPriority::PRIORITY_NORMAL;
const uint32_t kDEBUGTransactionThreadSleepMS = 0;
#endif
template <size_t N>
constexpr size_t LiteralStringLength(const char (&aArr)[N]) {
static_assert(N, "Zero-length string literal?!");
// Don't include the null terminator.
return N - 1;
}
/*******************************************************************************
* Metadata classes
******************************************************************************/
struct FullIndexMetadata {
IndexMetadata mCommonMetadata;
bool mDeleted;
public:
FullIndexMetadata()
: mCommonMetadata(0, nsString(), KeyPath(0), nsCString(), false, false,
false),
mDeleted(false) {
// This can happen either on the QuotaManager IO thread or on a
// versionchange transaction thread. These threads can never race so this is
// totally safe.
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FullIndexMetadata)
private:
~FullIndexMetadata() = default;
};
typedef nsRefPtrHashtable<nsUint64HashKey, FullIndexMetadata> IndexTable;
struct FullObjectStoreMetadata {
ObjectStoreMetadata mCommonMetadata;
IndexTable mIndexes;
// These two members are only ever touched on a transaction thread!
int64_t mNextAutoIncrementId;
int64_t mCommittedAutoIncrementId;
bool mDeleted;
public:
FullObjectStoreMetadata()
: mCommonMetadata(0, nsString(), KeyPath(0), false),
mNextAutoIncrementId(0),
mCommittedAutoIncrementId(0),
mDeleted(false) {
// This can happen either on the QuotaManager IO thread or on a
// versionchange transaction thread. These threads can never race so this is
// totally safe.
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FullObjectStoreMetadata);
bool HasLiveIndexes() const;
private:
~FullObjectStoreMetadata() = default;
};
typedef nsRefPtrHashtable<nsUint64HashKey, FullObjectStoreMetadata>
ObjectStoreTable;
struct FullDatabaseMetadata {
DatabaseMetadata mCommonMetadata;
nsCString mDatabaseId;
nsString mFilePath;
ObjectStoreTable mObjectStores;
int64_t mNextObjectStoreId;
int64_t mNextIndexId;
public:
explicit FullDatabaseMetadata(const DatabaseMetadata& aCommonMetadata)
: mCommonMetadata(aCommonMetadata),
mNextObjectStoreId(0),
mNextIndexId(0) {
AssertIsOnBackgroundThread();
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FullDatabaseMetadata)
already_AddRefed<FullDatabaseMetadata> Duplicate() const;
private:
~FullDatabaseMetadata() = default;
};
template <class MetadataType>
class MOZ_STACK_CLASS MetadataNameOrIdMatcher final {
typedef MetadataNameOrIdMatcher<MetadataType> SelfType;
const int64_t mId;
const nsString mName;
RefPtr<MetadataType> mMetadata;
bool mCheckName;
public:
template <class Enumerable>
static MetadataType* Match(const Enumerable& aEnumerable, uint64_t aId,
const nsAString& aName) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aId);
SelfType closure(aId, aName);
MatchHelper(aEnumerable, &closure);
return closure.mMetadata;
}
template <class Enumerable>
static MetadataType* Match(const Enumerable& aEnumerable, uint64_t aId) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aId);
SelfType closure(aId);
MatchHelper(aEnumerable, &closure);
return closure.mMetadata;
}
private:
MetadataNameOrIdMatcher(const int64_t& aId, const nsAString& aName)
: mId(aId), mName(aName), mMetadata(nullptr), mCheckName(true) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aId);
}
explicit MetadataNameOrIdMatcher(const int64_t& aId)
: mId(aId), mMetadata(nullptr), mCheckName(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aId);
}
template <class Enumerable>
static void MatchHelper(const Enumerable& aEnumerable, SelfType* aClosure) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aClosure);
for (auto iter = aEnumerable.ConstIter(); !iter.Done(); iter.Next()) {
#ifdef DEBUG
const uint64_t key = iter.Key();
#endif
MetadataType* value = iter.UserData();
MOZ_ASSERT(key != 0);
MOZ_ASSERT(value);
if (!value->mDeleted &&
(aClosure->mId == value->mCommonMetadata.id() ||
(aClosure->mCheckName &&
aClosure->mName == value->mCommonMetadata.name()))) {
aClosure->mMetadata = value;
break;
}
}
}
};
struct IndexDataValue final {
int64_t mIndexId;
Key mKey;
Key mSortKey;
bool mUnique;
IndexDataValue() : mIndexId(0), mUnique(false) {
MOZ_COUNT_CTOR(IndexDataValue);
}
explicit IndexDataValue(const IndexDataValue& aOther)
: mIndexId(aOther.mIndexId),
mKey(aOther.mKey),
mSortKey(aOther.mSortKey),
mUnique(aOther.mUnique) {
MOZ_ASSERT(!aOther.mKey.IsUnset());
MOZ_COUNT_CTOR(IndexDataValue);
}
IndexDataValue(int64_t aIndexId, bool aUnique, const Key& aKey)
: mIndexId(aIndexId), mKey(aKey), mUnique(aUnique) {
MOZ_ASSERT(!aKey.IsUnset());
MOZ_COUNT_CTOR(IndexDataValue);
}
IndexDataValue(int64_t aIndexId, bool aUnique, const Key& aKey,
const Key& aSortKey)
: mIndexId(aIndexId), mKey(aKey), mSortKey(aSortKey), mUnique(aUnique) {
MOZ_ASSERT(!aKey.IsUnset());
MOZ_COUNT_CTOR(IndexDataValue);
}
~IndexDataValue() { MOZ_COUNT_DTOR(IndexDataValue); }
bool operator==(const IndexDataValue& aOther) const {
if (mIndexId != aOther.mIndexId) {
return false;
}
if (mSortKey.IsUnset()) {
return mKey == aOther.mKey;
}
return mSortKey == aOther.mSortKey;
}
bool operator<(const IndexDataValue& aOther) const {
if (mIndexId == aOther.mIndexId) {
if (mSortKey.IsUnset()) {
return mKey < aOther.mKey;
}
return mSortKey < aOther.mSortKey;
}
return mIndexId < aOther.mIndexId;
}
};
/*******************************************************************************
* SQLite functions
******************************************************************************/
int32_t MakeSchemaVersion(uint32_t aMajorSchemaVersion,
uint32_t aMinorSchemaVersion) {
return int32_t((aMajorSchemaVersion << 4) + aMinorSchemaVersion);
}
// WARNING: the hash function used for the database name must not change.
// That's why this function exists separately from mozilla::HashString(), even
// though it is (at the time of writing) equivalent. See bug 780408 and bug
// 940315 for details.
uint32_t HashName(const nsAString& aName) {
struct Helper {
static uint32_t RotateBitsLeft32(uint32_t aValue, uint8_t aBits) {
MOZ_ASSERT(aBits < 32);
return (aValue << aBits) | (aValue >> (32 - aBits));
}
};
static const uint32_t kGoldenRatioU32 = 0x9e3779b9u;
const char16_t* str = aName.BeginReading();
size_t length = aName.Length();
uint32_t hash = 0;
for (size_t i = 0; i < length; i++) {
hash = kGoldenRatioU32 * (Helper::RotateBitsLeft32(hash, 5) ^ str[i]);
}
return hash;
}
nsresult ClampResultCode(nsresult aResultCode) {
if (NS_SUCCEEDED(aResultCode) ||
NS_ERROR_GET_MODULE(aResultCode) == NS_ERROR_MODULE_DOM_INDEXEDDB) {
return aResultCode;
}
switch (aResultCode) {
case NS_ERROR_FILE_NO_DEVICE_SPACE:
return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
case NS_ERROR_STORAGE_CONSTRAINT:
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
default:
#ifdef DEBUG
nsPrintfCString message("Converting non-IndexedDB error code (0x%" PRIX32
") to "
"NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR",
static_cast<uint32_t>(aResultCode));
NS_WARNING(message.get());
#else
;
#endif
}
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
void GetDatabaseFilename(const nsAString& aName,
nsAutoString& aDatabaseFilename) {
MOZ_ASSERT(aDatabaseFilename.IsEmpty());
// WARNING: do not change this hash function. See the comment in HashName()
// for details.
aDatabaseFilename.AppendInt(HashName(aName));
nsCString escapedName;
if (!NS_Escape(NS_ConvertUTF16toUTF8(aName), escapedName, url_XPAlphas)) {
MOZ_CRASH("Can't escape database name!");
}
const char* forwardIter = escapedName.BeginReading();
const char* backwardIter = escapedName.EndReading() - 1;
nsAutoCString substring;
while (forwardIter <= backwardIter && substring.Length() < 21) {
if (substring.Length() % 2) {
substring.Append(*backwardIter--);
} else {
substring.Append(*forwardIter++);
}
}
aDatabaseFilename.AppendASCII(substring.get(), substring.Length());
}
uint32_t CompressedByteCountForNumber(uint64_t aNumber) {
// All bytes have 7 bits available.
uint32_t count = 1;
while ((aNumber >>= 7)) {
count++;
}
return count;
}
uint32_t CompressedByteCountForIndexId(int64_t aIndexId) {
MOZ_ASSERT(aIndexId);
MOZ_ASSERT(UINT64_MAX - uint64_t(aIndexId) >= uint64_t(aIndexId),
"Overflow!");
return CompressedByteCountForNumber(uint64_t(aIndexId * 2));
}
void WriteCompressedNumber(uint64_t aNumber, uint8_t** aIterator) {
MOZ_ASSERT(aIterator);
MOZ_ASSERT(*aIterator);
uint8_t*& buffer = *aIterator;
#ifdef DEBUG
const uint8_t* bufferStart = buffer;
const uint64_t originalNumber = aNumber;
#endif
while (true) {
uint64_t shiftedNumber = aNumber >> 7;
if (shiftedNumber) {
*buffer++ = uint8_t(0x80 | (aNumber & 0x7f));
aNumber = shiftedNumber;
} else {
*buffer++ = uint8_t(aNumber);
break;
}
}
MOZ_ASSERT(buffer > bufferStart);
MOZ_ASSERT(uint32_t(buffer - bufferStart) ==
CompressedByteCountForNumber(originalNumber));
}
uint64_t ReadCompressedNumber(const uint8_t** aIterator, const uint8_t* aEnd) {
MOZ_ASSERT(aIterator);
MOZ_ASSERT(*aIterator);
MOZ_ASSERT(aEnd);
MOZ_ASSERT(*aIterator < aEnd);
const uint8_t*& buffer = *aIterator;
uint8_t shiftCounter = 0;
uint64_t result = 0;
while (true) {
MOZ_ASSERT(shiftCounter <= 56, "Shifted too many bits!");
result += (uint64_t(*buffer & 0x7f) << shiftCounter);
shiftCounter += 7;
if (!(*buffer++ & 0x80)) {
break;
}
if (NS_WARN_IF(buffer == aEnd)) {
MOZ_ASSERT(false);
break;
}
}
return result;
}
void WriteCompressedIndexId(int64_t aIndexId, bool aUnique,
uint8_t** aIterator) {
MOZ_ASSERT(aIndexId);
MOZ_ASSERT(UINT64_MAX - uint64_t(aIndexId) >= uint64_t(aIndexId),
"Overflow!");
MOZ_ASSERT(aIterator);
MOZ_ASSERT(*aIterator);
const uint64_t indexId = (uint64_t(aIndexId * 2) | (aUnique ? 1 : 0));
WriteCompressedNumber(indexId, aIterator);
}
void ReadCompressedIndexId(const uint8_t** aIterator, const uint8_t* aEnd,
int64_t* aIndexId, bool* aUnique) {
MOZ_ASSERT(aIterator);
MOZ_ASSERT(*aIterator);
MOZ_ASSERT(aIndexId);
MOZ_ASSERT(aUnique);
uint64_t indexId = ReadCompressedNumber(aIterator, aEnd);
if (indexId % 2) {
*aUnique = true;
indexId--;
} else {
*aUnique = false;
}
MOZ_ASSERT(UINT64_MAX / 2 >= uint64_t(indexId), "Bad index id!");
*aIndexId = int64_t(indexId / 2);
}
// static
nsresult MakeCompressedIndexDataValues(
const FallibleTArray<IndexDataValue>& aIndexValues,
UniqueFreePtr<uint8_t>& aCompressedIndexDataValues,
uint32_t* aCompressedIndexDataValuesLength) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(!aCompressedIndexDataValues);
MOZ_ASSERT(aCompressedIndexDataValuesLength);
AUTO_PROFILER_LABEL("MakeCompressedIndexDataValues", DOM);
const uint32_t arrayLength = aIndexValues.Length();
if (!arrayLength) {
*aCompressedIndexDataValuesLength = 0;
return NS_OK;
}
// First calculate the size of the final buffer.
uint32_t blobDataLength = 0;
for (uint32_t arrayIndex = 0; arrayIndex < arrayLength; arrayIndex++) {
const IndexDataValue& info = aIndexValues[arrayIndex];
const nsCString& keyBuffer = info.mKey.GetBuffer();
const nsCString& sortKeyBuffer = info.mSortKey.GetBuffer();
const uint32_t keyBufferLength = keyBuffer.Length();
const uint32_t sortKeyBufferLength = sortKeyBuffer.Length();
MOZ_ASSERT(!keyBuffer.IsEmpty());
const CheckedUint32 infoLength =
CheckedUint32(CompressedByteCountForIndexId(info.mIndexId)) +
CompressedByteCountForNumber(keyBufferLength) +
CompressedByteCountForNumber(sortKeyBufferLength) + keyBufferLength +
sortKeyBufferLength;
// Don't let |infoLength| overflow.
if (NS_WARN_IF(!infoLength.isValid())) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
// Don't let |blobDataLength| overflow.
if (NS_WARN_IF(UINT32_MAX - infoLength.value() < blobDataLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
blobDataLength += infoLength.value();
}
UniqueFreePtr<uint8_t> blobData(
static_cast<uint8_t*>(malloc(blobDataLength)));
if (NS_WARN_IF(!blobData)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
uint8_t* blobDataIter = blobData.get();
for (uint32_t arrayIndex = 0; arrayIndex < arrayLength; arrayIndex++) {
const IndexDataValue& info = aIndexValues[arrayIndex];
const nsCString& keyBuffer = info.mKey.GetBuffer();
const nsCString& sortKeyBuffer = info.mSortKey.GetBuffer();
const uint32_t keyBufferLength = keyBuffer.Length();
const uint32_t sortKeyBufferLength = sortKeyBuffer.Length();
WriteCompressedIndexId(info.mIndexId, info.mUnique, &blobDataIter);
WriteCompressedNumber(keyBufferLength, &blobDataIter);
memcpy(blobDataIter, keyBuffer.get(), keyBufferLength);
blobDataIter += keyBufferLength;
WriteCompressedNumber(sortKeyBufferLength, &blobDataIter);
memcpy(blobDataIter, sortKeyBuffer.get(), sortKeyBufferLength);
blobDataIter += sortKeyBufferLength;
}
MOZ_ASSERT(blobDataIter == blobData.get() + blobDataLength);
aCompressedIndexDataValues.swap(blobData);
*aCompressedIndexDataValuesLength = uint32_t(blobDataLength);
return NS_OK;
}
nsresult ReadCompressedIndexDataValuesFromBlob(
const uint8_t* aBlobData, uint32_t aBlobDataLength,
nsTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aBlobData);
MOZ_ASSERT(aBlobDataLength);
MOZ_ASSERT(aIndexValues.IsEmpty());
AUTO_PROFILER_LABEL("ReadCompressedIndexDataValuesFromBlob", DOM);
if (uintptr_t(aBlobData) > UINTPTR_MAX - aBlobDataLength) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
const uint8_t* blobDataIter = aBlobData;
const uint8_t* blobDataEnd = aBlobData + aBlobDataLength;
while (blobDataIter < blobDataEnd) {
int64_t indexId;
bool unique;
ReadCompressedIndexId(&blobDataIter, blobDataEnd, &indexId, &unique);
if (NS_WARN_IF(blobDataIter == blobDataEnd)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
// Read key buffer length.
const uint64_t keyBufferLength =
ReadCompressedNumber(&blobDataIter, blobDataEnd);
if (NS_WARN_IF(blobDataIter == blobDataEnd) ||
NS_WARN_IF(keyBufferLength > uint64_t(UINT32_MAX)) ||
NS_WARN_IF(keyBufferLength > uintptr_t(blobDataEnd)) ||
NS_WARN_IF(blobDataIter > blobDataEnd - keyBufferLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
nsCString keyBuffer(reinterpret_cast<const char*>(blobDataIter),
uint32_t(keyBufferLength));
blobDataIter += keyBufferLength;
IndexDataValue idv(indexId, unique, Key(keyBuffer));
// Read sort key buffer length.
const uint64_t sortKeyBufferLength =
ReadCompressedNumber(&blobDataIter, blobDataEnd);
if (sortKeyBufferLength > 0) {
if (NS_WARN_IF(blobDataIter == blobDataEnd) ||
NS_WARN_IF(sortKeyBufferLength > uint64_t(UINT32_MAX)) ||
NS_WARN_IF(sortKeyBufferLength > uintptr_t(blobDataEnd)) ||
NS_WARN_IF(blobDataIter > blobDataEnd - sortKeyBufferLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
nsCString sortKeyBuffer(reinterpret_cast<const char*>(blobDataIter),
uint32_t(sortKeyBufferLength));
blobDataIter += sortKeyBufferLength;
idv.mSortKey = Key(sortKeyBuffer);
}
if (NS_WARN_IF(!aIndexValues.InsertElementSorted(idv, fallible))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
}
MOZ_ASSERT(blobDataIter == blobDataEnd);
return NS_OK;
}
// static
template <typename T>
nsresult ReadCompressedIndexDataValuesFromSource(
T* aSource, uint32_t aColumnIndex, nsTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aSource);
MOZ_ASSERT(aIndexValues.IsEmpty());
int32_t columnType;
nsresult rv = aSource->GetTypeOfIndex(aColumnIndex, &columnType);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (columnType == mozIStorageStatement::VALUE_TYPE_NULL) {
return NS_OK;
}
MOZ_ASSERT(columnType == mozIStorageStatement::VALUE_TYPE_BLOB);
const uint8_t* blobData;
uint32_t blobDataLength;
rv = aSource->GetSharedBlob(aColumnIndex, &blobDataLength, &blobData);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!blobDataLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
rv = ReadCompressedIndexDataValuesFromBlob(blobData, blobDataLength,
aIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult ReadCompressedIndexDataValues(mozIStorageStatement* aStatement,
uint32_t aColumnIndex,
nsTArray<IndexDataValue>& aIndexValues) {
return ReadCompressedIndexDataValuesFromSource(aStatement, aColumnIndex,
aIndexValues);
}
nsresult ReadCompressedIndexDataValues(mozIStorageValueArray* aValues,
uint32_t aColumnIndex,
nsTArray<IndexDataValue>& aIndexValues) {
return ReadCompressedIndexDataValuesFromSource(aValues, aColumnIndex,
aIndexValues);
}
nsresult CreateFileTables(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("CreateFileTables", DOM);
// Table `file`
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE file ("
"id INTEGER PRIMARY KEY, "
"refcount INTEGER NOT NULL"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"FOR EACH ROW "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_update_trigger "
"AFTER UPDATE OF file_ids ON object_data "
"FOR EACH ROW "
"WHEN OLD.file_ids IS NOT NULL OR NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NEW.file_ids); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_delete_trigger "
"AFTER DELETE ON object_data "
"FOR EACH ROW WHEN OLD.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NULL); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER file_update_trigger "
"AFTER UPDATE ON file "
"FOR EACH ROW WHEN NEW.refcount = 0 "
"BEGIN "
"DELETE FROM file WHERE id = OLD.id; "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult CreateTables(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("CreateTables", DOM);
// Table `database`
// There are two reasons for having the origin column.
// First, we can ensure that we don't have collisions in the origin hash we
// use for the path because when we open the db we can make sure that the
// origins exactly match. Second, chrome code crawling through the idb
// directory can figure out the origin of every db without having to
// reverse-engineer our hash scheme.
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE database"
"( name TEXT PRIMARY KEY"
", origin TEXT NOT NULL"
", version INTEGER NOT NULL DEFAULT 0"
", last_vacuum_time INTEGER NOT NULL DEFAULT 0"
", last_analyze_time INTEGER NOT NULL DEFAULT 0"
", last_vacuum_size INTEGER NOT NULL DEFAULT 0"
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Table `object_store`
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE object_store"
"( id INTEGER PRIMARY KEY"
", auto_increment INTEGER NOT NULL DEFAULT 0"
", name TEXT NOT NULL"
", key_path TEXT"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Table `object_store_index`
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE object_store_index"
"( id INTEGER PRIMARY KEY"
", object_store_id INTEGER NOT NULL"
", name TEXT NOT NULL"
", key_path TEXT NOT NULL"
", unique_index INTEGER NOT NULL"
", multientry INTEGER NOT NULL"
", locale TEXT"
", is_auto_locale BOOLEAN NOT NULL"
", FOREIGN KEY (object_store_id) "
"REFERENCES object_store(id) "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Table `object_data`
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE object_data"
"( object_store_id INTEGER NOT NULL"
", key BLOB NOT NULL"
", index_data_values BLOB DEFAULT NULL"
", file_ids TEXT"
", data BLOB NOT NULL"
", PRIMARY KEY (object_store_id, key)"
", FOREIGN KEY (object_store_id) "
"REFERENCES object_store(id) "
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Table `index_data`
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE index_data"
"( index_id INTEGER NOT NULL"
", value BLOB NOT NULL"
", object_data_key BLOB NOT NULL"
", object_store_id INTEGER NOT NULL"
", value_locale BLOB"
", PRIMARY KEY (index_id, value, object_data_key)"
", FOREIGN KEY (index_id) "
"REFERENCES object_store_index(id) "
", FOREIGN KEY (object_store_id, object_data_key) "
"REFERENCES object_data(object_store_id, key) "
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX index_data_value_locale_index "
"ON index_data (index_id, value_locale, object_data_key, value) "
"WHERE value_locale IS NOT NULL;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Table `unique_index_data`
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE unique_index_data"
"( index_id INTEGER NOT NULL"
", value BLOB NOT NULL"
", object_store_id INTEGER NOT NULL"
", object_data_key BLOB NOT NULL"
", value_locale BLOB"
", PRIMARY KEY (index_id, value)"
", FOREIGN KEY (index_id) "
"REFERENCES object_store_index(id) "
", FOREIGN KEY (object_store_id, object_data_key) "
"REFERENCES object_data(object_store_id, key) "
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX unique_index_data_value_locale_index "
"ON unique_index_data (index_id, value_locale, object_data_key, value) "
"WHERE value_locale IS NOT NULL;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = CreateFileTables(aConnection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(kSQLiteSchemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom4To5(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom4To5", DOM);
nsresult rv;
// All we changed is the type of the version column, so lets try to
// convert that to an integer, and if we fail, set it to 0.
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("SELECT name, version, dataVersion "
"FROM database"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsString name;
int32_t intVersion;
int64_t dataVersion;
{
mozStorageStatementScoper scoper(stmt);
bool hasResults;
rv = stmt->ExecuteStep(&hasResults);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!hasResults)) {
return NS_ERROR_FAILURE;
}
nsString version;
rv = stmt->GetString(1, version);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
intVersion = version.ToInteger(&rv);
if (NS_FAILED(rv)) {
intVersion = 0;
}
rv = stmt->GetString(0, name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->GetInt64(2, &dataVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING("DROP TABLE database"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE database ("
"name TEXT NOT NULL, "
"version INTEGER NOT NULL DEFAULT 0, "
"dataVersion INTEGER NOT NULL"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("INSERT INTO database (name, version, dataVersion) "
"VALUES (:name, :version, :dataVersion)"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
{
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindStringByIndex(0, name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt32ByIndex(1, intVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByIndex(2, dataVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = aConnection->SetSchemaVersion(5);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom5To6(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom5To6", DOM);
// First, drop all the indexes we're no longer going to use.
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP INDEX key_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP INDEX ai_key_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP INDEX value_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP INDEX ai_value_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now, reorder the columns of object_data to put the blob data last. We do
// this by copying into a temporary table, dropping the original, then copying
// back into a newly created table.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"id INTEGER PRIMARY KEY, "
"object_store_id, "
"key_value, "
"data "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT id, object_store_id, key_value, data "
"FROM object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_data ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"key_value DEFAULT NULL, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, key_value), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO object_data "
"SELECT id, object_store_id, key_value, data "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// We need to add a unique constraint to our ai_object_data table. Copy all
// the data out of it using a temporary table as before.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"id INTEGER PRIMARY KEY, "
"object_store_id, "
"data "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT id, object_store_id, data "
"FROM ai_object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE ai_object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE ai_object_data ("
"id INTEGER PRIMARY KEY AUTOINCREMENT, "
"object_store_id INTEGER NOT NULL, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, id), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO ai_object_data "
"SELECT id, object_store_id, data "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Fix up the index_data table. We're reordering the columns as well as
// changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"object_data_key NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT OR IGNORE INTO index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE INDEX index_data_object_data_id_index "
"ON index_data (object_data_id);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Fix up the unique_index_data table. We're reordering the columns as well as
// changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE unique_index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"object_data_key NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"UNIQUE (index_id, value), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO unique_index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE INDEX unique_index_data_object_data_id_index "
"ON unique_index_data (object_data_id);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Fix up the ai_index_data table. We're reordering the columns as well as
// changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"ai_object_data_id "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT index_id, value, ai_object_data_id "
"FROM ai_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE ai_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE ai_index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"ai_object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, ai_object_data_id), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (ai_object_data_id) REFERENCES ai_object_data(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT OR IGNORE INTO ai_index_data "
"SELECT index_id, value, ai_object_data_id "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE INDEX ai_index_data_ai_object_data_id_index "
"ON ai_index_data (ai_object_data_id);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Fix up the ai_unique_index_data table. We're reordering the columns as well
// as changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"ai_object_data_id "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT index_id, value, ai_object_data_id "
"FROM ai_unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE ai_unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE ai_unique_index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"ai_object_data_id INTEGER NOT NULL, "
"UNIQUE (index_id, value), "
"PRIMARY KEY (index_id, value, ai_object_data_id), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (ai_object_data_id) REFERENCES ai_object_data(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO ai_unique_index_data "
"SELECT index_id, value, ai_object_data_id "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX ai_unique_index_data_ai_object_data_id_index "
"ON ai_unique_index_data (ai_object_data_id);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(6);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom6To7(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom6To7", DOM);
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"id, "
"name, "
"key_path, "
"auto_increment"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT id, name, key_path, auto_increment "
"FROM object_store;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_store;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TABLE object_store ("
"id INTEGER PRIMARY KEY, "
"auto_increment INTEGER NOT NULL DEFAULT 0, "
"name TEXT NOT NULL, "
"key_path TEXT, "
"UNIQUE (name)"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_store "
"SELECT id, auto_increment, name, nullif(key_path, '') "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(7);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom7To8(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom7To8", DOM);
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"id, "
"object_store_id, "
"name, "
"key_path, "
"unique_index, "
"object_store_autoincrement"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT id, object_store_id, name, key_path, "
"unique_index, object_store_autoincrement "
"FROM object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store_index ("
"id INTEGER, "
"object_store_id INTEGER NOT NULL, "
"name TEXT NOT NULL, "
"key_path TEXT NOT NULL, "
"unique_index INTEGER NOT NULL, "
"multientry INTEGER NOT NULL, "
"object_store_autoincrement INTERGER NOT NULL, "
"PRIMARY KEY (id), "
"UNIQUE (object_store_id, name), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO object_store_index "
"SELECT id, object_store_id, name, key_path, "
"unique_index, 0, object_store_autoincrement "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(8);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class CompressDataBlobsFunction final : public mozIStorageFunction {
public:
NS_DECL_ISUPPORTS
private:
~CompressDataBlobsFunction() = default;
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult) override {
MOZ_ASSERT(aArguments);
MOZ_ASSERT(aResult);
AUTO_PROFILER_LABEL("CompressDataBlobsFunction::OnFunctionCall", DOM);
uint32_t argc;
nsresult rv = aArguments->GetNumEntries(&argc);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (argc != 1) {
NS_WARNING("Don't call me with the wrong number of arguments!");
return NS_ERROR_UNEXPECTED;
}
int32_t type;
rv = aArguments->GetTypeOfIndex(0, &type);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (type != mozIStorageStatement::VALUE_TYPE_BLOB) {
NS_WARNING("Don't call me with the wrong type of arguments!");
return NS_ERROR_UNEXPECTED;
}
const uint8_t* uncompressed;
uint32_t uncompressedLength;
rv = aArguments->GetSharedBlob(0, &uncompressedLength, &uncompressed);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
size_t compressedLength = snappy::MaxCompressedLength(uncompressedLength);
UniqueFreePtr<uint8_t> compressed(
static_cast<uint8_t*>(malloc(compressedLength)));
if (NS_WARN_IF(!compressed)) {
return NS_ERROR_OUT_OF_MEMORY;
}
snappy::RawCompress(
reinterpret_cast<const char*>(uncompressed), uncompressedLength,
reinterpret_cast<char*>(compressed.get()), &compressedLength);
std::pair<uint8_t*, int> data(compressed.release(), int(compressedLength));
nsCOMPtr<nsIVariant> result =
new mozilla::storage::AdoptedBlobVariant(data);
result.forget(aResult);
return NS_OK;
}
};
nsresult UpgradeSchemaFrom8To9_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom8To9_0", DOM);
// We no longer use the dataVersion column.
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("UPDATE database SET dataVersion = 0;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageFunction> compressor = new CompressDataBlobsFunction();
NS_NAMED_LITERAL_CSTRING(compressorName, "compress");
rv = aConnection->CreateFunction(compressorName, 1, compressor);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Turn off foreign key constraints before we do anything here.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("UPDATE object_data SET data = compress(data);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("UPDATE ai_object_data SET data = compress(data);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->RemoveFunction(compressorName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(9, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom9_0To10_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom9_0To10_0", DOM);
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE object_data ADD COLUMN file_ids TEXT;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE ai_object_data ADD COLUMN file_ids TEXT;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = CreateFileTables(aConnection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(10, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom10_0To11_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom10_0To11_0", DOM);
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"id, "
"object_store_id, "
"name, "
"key_path, "
"unique_index, "
"multientry"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO temp_upgrade "
"SELECT id, object_store_id, name, key_path, "
"unique_index, multientry "
"FROM object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store_index ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"name TEXT NOT NULL, "
"key_path TEXT NOT NULL, "
"unique_index INTEGER NOT NULL, "
"multientry INTEGER NOT NULL, "
"UNIQUE (object_store_id, name), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO object_store_index "
"SELECT id, object_store_id, name, key_path, "
"unique_index, multientry "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TRIGGER object_data_insert_trigger;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_data (object_store_id, key_value, data, file_ids) "
"SELECT object_store_id, id, data, file_ids "
"FROM ai_object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"FOR EACH ROW "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO index_data (index_id, value, object_data_key, "
"object_data_id) "
"SELECT ai_index_data.index_id, ai_index_data.value, "
"ai_index_data.ai_object_data_id, object_data.id "
"FROM ai_index_data "
"INNER JOIN object_store_index ON "
"object_store_index.id = ai_index_data.index_id "
"INNER JOIN object_data ON "
"object_data.object_store_id = object_store_index.object_store_id AND "
"object_data.key_value = ai_index_data.ai_object_data_id;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO unique_index_data (index_id, value, object_data_key, "
"object_data_id) "
"SELECT ai_unique_index_data.index_id, ai_unique_index_data.value, "
"ai_unique_index_data.ai_object_data_id, object_data.id "
"FROM ai_unique_index_data "
"INNER JOIN object_store_index ON "
"object_store_index.id = ai_unique_index_data.index_id "
"INNER JOIN object_data ON "
"object_data.object_store_id = object_store_index.object_store_id AND "
"object_data.key_value = ai_unique_index_data.ai_object_data_id;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE object_store "
"SET auto_increment = (SELECT max(id) FROM ai_object_data) + 1 "
"WHERE auto_increment;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE ai_unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE ai_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE ai_object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(11, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class EncodeKeysFunction final : public mozIStorageFunction {
public:
NS_DECL_ISUPPORTS
private:
~EncodeKeysFunction() = default;
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult) override {
MOZ_ASSERT(aArguments);
MOZ_ASSERT(aResult);
AUTO_PROFILER_LABEL("EncodeKeysFunction::OnFunctionCall", DOM);
uint32_t argc;
nsresult rv = aArguments->GetNumEntries(&argc);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (argc != 1) {
NS_WARNING("Don't call me with the wrong number of arguments!");
return NS_ERROR_UNEXPECTED;
}
int32_t type;
rv = aArguments->GetTypeOfIndex(0, &type);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
Key key;
if (type == mozIStorageStatement::VALUE_TYPE_INTEGER) {
int64_t intKey;
aArguments->GetInt64(0, &intKey);
key.SetFromInteger(intKey);
} else if (type == mozIStorageStatement::VALUE_TYPE_TEXT) {
nsString stringKey;
aArguments->GetString(0, stringKey);
key.SetFromString(stringKey);
} else {
NS_WARNING("Don't call me with the wrong type of arguments!");
return NS_ERROR_UNEXPECTED;
}
const nsCString& buffer = key.GetBuffer();
std::pair<const void*, int> data(static_cast<const void*>(buffer.get()),
int(buffer.Length()));
nsCOMPtr<nsIVariant> result = new mozilla::storage::BlobVariant(data);
result.forget(aResult);
return NS_OK;
}
};
nsresult UpgradeSchemaFrom11_0To12_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom11_0To12_0", DOM);
NS_NAMED_LITERAL_CSTRING(encoderName, "encode");
nsCOMPtr<mozIStorageFunction> encoder = new EncodeKeysFunction();
nsresult rv = aConnection->CreateFunction(encoderName, 1, encoder);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"id INTEGER PRIMARY KEY, "
"object_store_id, "
"key_value, "
"data, "
"file_ids "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, object_store_id, encode(key_value), data, file_ids "
"FROM object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_data ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"key_value BLOB DEFAULT NULL, "
"file_ids TEXT, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, key_value), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_data "
"SELECT id, object_store_id, key_value, file_ids, data "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"FOR EACH ROW "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_update_trigger "
"AFTER UPDATE OF file_ids ON object_data "
"FOR EACH ROW "
"WHEN OLD.file_ids IS NOT NULL OR NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NEW.file_ids); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_delete_trigger "
"AFTER DELETE ON object_data "
"FOR EACH ROW WHEN OLD.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NULL); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, encode(value), encode(object_data_key), object_data_id "
"FROM index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE index_data ("
"index_id INTEGER NOT NULL, "
"value BLOB NOT NULL, "
"object_data_key BLOB NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE INDEX index_data_object_data_id_index "
"ON index_data (object_data_id);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, encode(value), encode(object_data_key), object_data_id "
"FROM unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE unique_index_data ("
"index_id INTEGER NOT NULL, "
"value BLOB NOT NULL, "
"object_data_key BLOB NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"UNIQUE (index_id, value), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO unique_index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE temp_upgrade;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE INDEX unique_index_data_object_data_id_index "
"ON unique_index_data (object_data_id);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->RemoveFunction(encoderName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(12, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom12_0To13_0(mozIStorageConnection* aConnection,
bool* aVacuumNeeded) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom12_0To13_0", DOM);
nsresult rv;
#ifdef IDB_MOBILE
int32_t defaultPageSize;
rv = aConnection->GetDefaultPageSize(&defaultPageSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Enable auto_vacuum mode and update the page size to the platform default.
nsAutoCString upgradeQuery("PRAGMA auto_vacuum = FULL; PRAGMA page_size = ");
upgradeQuery.AppendInt(defaultPageSize);
rv = aConnection->ExecuteSimpleSQL(upgradeQuery);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
*aVacuumNeeded = true;
#endif
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(13, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom13_0To14_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
// The only change between 13 and 14 was a different structured
// clone format, but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(14, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom14_0To15_0(mozIStorageConnection* aConnection) {
// The only change between 14 and 15 was a different structured
// clone format, but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(15, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom15_0To16_0(mozIStorageConnection* aConnection) {
// The only change between 15 and 16 was a different structured
// clone format, but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(16, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom16_0To17_0(mozIStorageConnection* aConnection) {
// The only change between 16 and 17 was a different structured
// clone format, but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(17, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class UpgradeSchemaFrom17_0To18_0Helper final {
class InsertIndexDataValuesFunction;
class UpgradeKeyFunction;
public:
static nsresult DoUpgrade(mozIStorageConnection* aConnection,
const nsACString& aOrigin);
private:
static nsresult DoUpgradeInternal(mozIStorageConnection* aConnection,
const nsACString& aOrigin);
UpgradeSchemaFrom17_0To18_0Helper() = delete;
~UpgradeSchemaFrom17_0To18_0Helper() = delete;
};
class UpgradeSchemaFrom17_0To18_0Helper::InsertIndexDataValuesFunction final
: public mozIStorageFunction {
public:
InsertIndexDataValuesFunction() {}
NS_DECL_ISUPPORTS
private:
~InsertIndexDataValuesFunction() = default;
NS_DECL_MOZISTORAGEFUNCTION
};
NS_IMPL_ISUPPORTS(
UpgradeSchemaFrom17_0To18_0Helper::InsertIndexDataValuesFunction,
mozIStorageFunction);
NS_IMETHODIMP
UpgradeSchemaFrom17_0To18_0Helper::InsertIndexDataValuesFunction::
OnFunctionCall(mozIStorageValueArray* aValues, nsIVariant** _retval) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aValues);
MOZ_ASSERT(_retval);
#ifdef DEBUG
{
uint32_t argCount;
MOZ_ALWAYS_SUCCEEDS(aValues->GetNumEntries(&argCount));
MOZ_ASSERT(argCount == 4);
int32_t valueType;
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(0, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_NULL ||
valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(1, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_INTEGER);
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(2, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_INTEGER);
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(3, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
}
#endif
// Read out the previous value. It may be NULL, in which case we'll just end
// up with an empty array.
AutoTArray<IndexDataValue, 32> indexValues;
nsresult rv = ReadCompressedIndexDataValues(aValues, 0, indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t indexId;
rv = aValues->GetInt64(1, &indexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t unique;
rv = aValues->GetInt32(2, &unique);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
Key value;
rv = value.SetFromValueArray(aValues, 3);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the array with the new addition.
if (NS_WARN_IF(
!indexValues.SetCapacity(indexValues.Length() + 1, fallible))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
MOZ_ALWAYS_TRUE(indexValues.InsertElementSorted(
IndexDataValue(indexId, !!unique, value), fallible));
// Compress the array.
UniqueFreePtr<uint8_t> indexValuesBlob;
uint32_t indexValuesBlobLength;
rv = MakeCompressedIndexDataValues(indexValues, indexValuesBlob,
&indexValuesBlobLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// The compressed blob is the result of this function.
std::pair<uint8_t*, int> indexValuesBlobPair(indexValuesBlob.release(),
indexValuesBlobLength);
nsCOMPtr<nsIVariant> result =
new storage::AdoptedBlobVariant(indexValuesBlobPair);
result.forget(_retval);
return NS_OK;
}
class UpgradeSchemaFrom17_0To18_0Helper::UpgradeKeyFunction final
: public mozIStorageFunction {
public:
UpgradeKeyFunction() {}
static nsresult CopyAndUpgradeKeyBuffer(const uint8_t* aSource,
const uint8_t* aSourceEnd,
uint8_t* aDestination) {
return CopyAndUpgradeKeyBufferInternal(aSource, aSourceEnd, aDestination,
0 /* aTagOffset */,
0 /* aRecursionDepth */);
}
NS_DECL_ISUPPORTS
private:
~UpgradeKeyFunction() = default;
static nsresult CopyAndUpgradeKeyBufferInternal(const uint8_t*& aSource,
const uint8_t* aSourceEnd,
uint8_t*& aDestination,
uint8_t aTagOffset,
uint8_t aRecursionDepth);
static uint32_t AdjustedSize(uint32_t aMaxSize, const uint8_t* aSource,
const uint8_t* aSourceEnd) {
MOZ_ASSERT(aMaxSize);
MOZ_ASSERT(aSource);
MOZ_ASSERT(aSourceEnd);
MOZ_ASSERT(aSource <= aSourceEnd);
return std::min(aMaxSize, uint32_t(aSourceEnd - aSource));
}
NS_DECL_MOZISTORAGEFUNCTION
};
// static
nsresult UpgradeSchemaFrom17_0To18_0Helper::UpgradeKeyFunction::
CopyAndUpgradeKeyBufferInternal(const uint8_t*& aSource,
const uint8_t* aSourceEnd,
uint8_t*& aDestination, uint8_t aTagOffset,
uint8_t aRecursionDepth) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aSource);
MOZ_ASSERT(*aSource);
MOZ_ASSERT(aSourceEnd);
MOZ_ASSERT(aSource < aSourceEnd);
MOZ_ASSERT(aDestination);
MOZ_ASSERT(aTagOffset <= Key::kMaxArrayCollapse);
static constexpr uint8_t kOldNumberTag = 0x1;
static constexpr uint8_t kOldDateTag = 0x2;
static constexpr uint8_t kOldStringTag = 0x3;
static constexpr uint8_t kOldArrayTag = 0x4;
static constexpr uint8_t kOldMaxType = kOldArrayTag;
if (NS_WARN_IF(aRecursionDepth > Key::kMaxRecursionDepth)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
const uint8_t sourceTag = *aSource - (aTagOffset * kOldMaxType);
MOZ_ASSERT(sourceTag);
if (NS_WARN_IF(sourceTag > kOldMaxType * Key::kMaxArrayCollapse)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
if (sourceTag == kOldNumberTag || sourceTag == kOldDateTag) {
// Write the new tag.
*aDestination++ = (sourceTag == kOldNumberTag ? Key::eFloat : Key::eDate) +
(aTagOffset * Key::eMaxType);
aSource++;
// Numbers and Dates are encoded as 64-bit integers, but trailing 0
// bytes have been removed.
const uint32_t byteCount =
AdjustedSize(sizeof(uint64_t), aSource, aSourceEnd);
for (uint32_t count = 0; count < byteCount; count++) {
*aDestination++ = *aSource++;
}
return NS_OK;
}
if (sourceTag == kOldStringTag) {
// Write the new tag.
*aDestination++ = Key::eString + (aTagOffset * Key::eMaxType);
aSource++;
while (aSource < aSourceEnd) {
const uint8_t byte = *aSource++;
*aDestination++ = byte;
if (!byte) {
// Just copied the terminator.
break;
}
// Maybe copy one or two extra bytes if the byte is tagged and we have
// enough source space.
if (byte & 0x80) {
const uint32_t byteCount =
AdjustedSize((byte & 0x40) ? 2 : 1, aSource, aSourceEnd);
for (uint32_t count = 0; count < byteCount; count++) {
*aDestination++ = *aSource++;
}
}
}
return NS_OK;
}
if (NS_WARN_IF(sourceTag < kOldArrayTag)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
aTagOffset++;
if (aTagOffset == Key::kMaxArrayCollapse) {
MOZ_ASSERT(sourceTag == kOldArrayTag);
*aDestination++ = (aTagOffset * Key::eMaxType);
aSource++;
aTagOffset = 0;
}
while (aSource < aSourceEnd &&
(*aSource - (aTagOffset * kOldMaxType)) != Key::eTerminator) {
nsresult rv = CopyAndUpgradeKeyBufferInternal(
aSource, aSourceEnd, aDestination, aTagOffset, aRecursionDepth + 1);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
aTagOffset = 0;
}
if (aSource < aSourceEnd) {
MOZ_ASSERT((*aSource - (aTagOffset * kOldMaxType)) == Key::eTerminator);
*aDestination++ = Key::eTerminator + (aTagOffset * Key::eMaxType);
aSource++;
}
return NS_OK;
}
NS_IMPL_ISUPPORTS(UpgradeSchemaFrom17_0To18_0Helper::UpgradeKeyFunction,
mozIStorageFunction);
NS_IMETHODIMP
UpgradeSchemaFrom17_0To18_0Helper::UpgradeKeyFunction::OnFunctionCall(
mozIStorageValueArray* aValues, nsIVariant** _retval) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aValues);
MOZ_ASSERT(_retval);
#ifdef DEBUG
{
uint32_t argCount;
MOZ_ALWAYS_SUCCEEDS(aValues->GetNumEntries(&argCount));
MOZ_ASSERT(argCount == 1);
int32_t valueType;
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(0, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
}
#endif
// Dig the old key out of the values.
const uint8_t* blobData;
uint32_t blobDataLength;
nsresult rv = aValues->GetSharedBlob(0, &blobDataLength, &blobData);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Upgrading the key doesn't change the amount of space needed to hold it.
UniqueFreePtr<uint8_t> upgradedBlobData(
static_cast<uint8_t*>(malloc(blobDataLength)));
if (NS_WARN_IF(!upgradedBlobData)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
rv = CopyAndUpgradeKeyBuffer(blobData, blobData + blobDataLength,
upgradedBlobData.get());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// The upgraded key is the result of this function.
std::pair<uint8_t*, int> data(upgradedBlobData.release(),
int(blobDataLength));
nsCOMPtr<nsIVariant> result = new mozilla::storage::AdoptedBlobVariant(data);
result.forget(_retval);
return NS_OK;
}
// static
nsresult UpgradeSchemaFrom17_0To18_0Helper::DoUpgrade(
mozIStorageConnection* aConnection, const nsACString& aOrigin) {
MOZ_ASSERT(aConnection);
MOZ_ASSERT(!aOrigin.IsEmpty());
// Register the |upgrade_key| function.
RefPtr<UpgradeKeyFunction> updateFunction = new UpgradeKeyFunction();
NS_NAMED_LITERAL_CSTRING(upgradeKeyFunctionName, "upgrade_key");
nsresult rv =
aConnection->CreateFunction(upgradeKeyFunctionName, 1, updateFunction);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Register the |insert_idv| function.
RefPtr<InsertIndexDataValuesFunction> insertIDVFunction =
new InsertIndexDataValuesFunction();
NS_NAMED_LITERAL_CSTRING(insertIDVFunctionName, "insert_idv");
rv = aConnection->CreateFunction(insertIDVFunctionName, 4, insertIDVFunction);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_ALWAYS_SUCCEEDS(aConnection->RemoveFunction(upgradeKeyFunctionName));
return rv;
}
rv = DoUpgradeInternal(aConnection, aOrigin);
MOZ_ALWAYS_SUCCEEDS(aConnection->RemoveFunction(upgradeKeyFunctionName));
MOZ_ALWAYS_SUCCEEDS(aConnection->RemoveFunction(insertIDVFunctionName));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// static
nsresult UpgradeSchemaFrom17_0To18_0Helper::DoUpgradeInternal(
mozIStorageConnection* aConnection, const nsACString& aOrigin) {
MOZ_ASSERT(aConnection);
MOZ_ASSERT(!aOrigin.IsEmpty());
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Drop these triggers to avoid unnecessary work during the upgrade
// process.
"DROP TRIGGER object_data_insert_trigger;"
"DROP TRIGGER object_data_update_trigger;"
"DROP TRIGGER object_data_delete_trigger;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Drop these indexes before we do anything else to free disk space.
"DROP INDEX index_data_object_data_id_index;"
"DROP INDEX unique_index_data_object_data_id_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Create the new tables and triggers first.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// This will eventually become the |database| table.
"CREATE TABLE database_upgrade "
"( name TEXT PRIMARY KEY"
", origin TEXT NOT NULL"
", version INTEGER NOT NULL DEFAULT 0"
", last_vacuum_time INTEGER NOT NULL DEFAULT 0"
", last_analyze_time INTEGER NOT NULL DEFAULT 0"
", last_vacuum_size INTEGER NOT NULL DEFAULT 0"
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// This will eventually become the |object_store| table.
"CREATE TABLE object_store_upgrade"
"( id INTEGER PRIMARY KEY"
", auto_increment INTEGER NOT NULL DEFAULT 0"
", name TEXT NOT NULL"
", key_path TEXT"
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// This will eventually become the |object_store_index| table.
"CREATE TABLE object_store_index_upgrade"
"( id INTEGER PRIMARY KEY"
", object_store_id INTEGER NOT NULL"
", name TEXT NOT NULL"
", key_path TEXT NOT NULL"
", unique_index INTEGER NOT NULL"
", multientry INTEGER NOT NULL"
", FOREIGN KEY (object_store_id) "
"REFERENCES object_store(id) "
");"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// This will eventually become the |object_data| table.
"CREATE TABLE object_data_upgrade"
"( object_store_id INTEGER NOT NULL"
", key BLOB NOT NULL"
", index_data_values BLOB DEFAULT NULL"
", file_ids TEXT"
", data BLOB NOT NULL"
", PRIMARY KEY (object_store_id, key)"
", FOREIGN KEY (object_store_id) "
"REFERENCES object_store(id) "
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// This will eventually become the |index_data| table.
"CREATE TABLE index_data_upgrade"
"( index_id INTEGER NOT NULL"
", value BLOB NOT NULL"
", object_data_key BLOB NOT NULL"
", object_store_id INTEGER NOT NULL"
", PRIMARY KEY (index_id, value, object_data_key)"
", FOREIGN KEY (index_id) "
"REFERENCES object_store_index(id) "
", FOREIGN KEY (object_store_id, object_data_key) "
"REFERENCES object_data(object_store_id, key) "
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// This will eventually become the |unique_index_data| table.
"CREATE TABLE unique_index_data_upgrade"
"( index_id INTEGER NOT NULL"
", value BLOB NOT NULL"
", object_store_id INTEGER NOT NULL"
", object_data_key BLOB NOT NULL"
", PRIMARY KEY (index_id, value)"
", FOREIGN KEY (index_id) "
"REFERENCES object_store_index(id) "
", FOREIGN KEY (object_store_id, object_data_key) "
"REFERENCES object_data(object_store_id, key) "
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Temporarily store |index_data_values| that we build during the upgrade
// of the index tables. We will later move this to the |object_data|
// table.
"CREATE TEMPORARY TABLE temp_index_data_values "
"( object_store_id INTEGER NOT NULL"
", key BLOB NOT NULL"
", index_data_values BLOB DEFAULT NULL"
", PRIMARY KEY (object_store_id, key)"
") WITHOUT ROWID;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// These two triggers help build the |index_data_values| blobs. The nested
// SELECT statements help us achieve an "INSERT OR UPDATE"-like behavior.
"CREATE TEMPORARY TRIGGER unique_index_data_upgrade_insert_trigger "
"AFTER INSERT ON unique_index_data_upgrade "
"BEGIN "
"INSERT OR REPLACE INTO temp_index_data_values "
"VALUES "
"( NEW.object_store_id"
", NEW.object_data_key"
", insert_idv("
"( SELECT index_data_values "
"FROM temp_index_data_values "
"WHERE object_store_id = NEW.object_store_id "
"AND key = NEW.object_data_key "
"), NEW.index_id"
", 1" /* unique */
", NEW.value"
")"
");"
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TRIGGER index_data_upgrade_insert_trigger "
"AFTER INSERT ON index_data_upgrade "
"BEGIN "
"INSERT OR REPLACE INTO temp_index_data_values "
"VALUES "
"( NEW.object_store_id"
", NEW.object_data_key"
", insert_idv("
"("
"SELECT index_data_values "
"FROM temp_index_data_values "
"WHERE object_store_id = NEW.object_store_id "
"AND key = NEW.object_data_key "
"), NEW.index_id"
", 0" /* not unique */
", NEW.value"
")"
");"
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the |unique_index_data| table to change the column order, remove the
// ON DELETE CASCADE clauses, and to apply the WITHOUT ROWID optimization.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Insert all the data.
"INSERT INTO unique_index_data_upgrade "
"SELECT "
"unique_index_data.index_id, "
"upgrade_key(unique_index_data.value), "
"object_data.object_store_id, "
"upgrade_key(unique_index_data.object_data_key) "
"FROM unique_index_data "
"JOIN object_data "
"ON unique_index_data.object_data_id = object_data.id;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// The trigger is no longer needed.
"DROP TRIGGER unique_index_data_upgrade_insert_trigger;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// The old table is no longer needed.
"DROP TABLE unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Rename the table.
"ALTER TABLE unique_index_data_upgrade "
"RENAME TO unique_index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the |index_data| table to change the column order, remove the ON
// DELETE CASCADE clauses, and to apply the WITHOUT ROWID optimization.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Insert all the data.
"INSERT INTO index_data_upgrade "
"SELECT "
"index_data.index_id, "
"upgrade_key(index_data.value), "
"upgrade_key(index_data.object_data_key), "
"object_data.object_store_id "
"FROM index_data "
"JOIN object_data "
"ON index_data.object_data_id = object_data.id;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// The trigger is no longer needed.
"DROP TRIGGER index_data_upgrade_insert_trigger;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// The old table is no longer needed.
"DROP TABLE index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Rename the table.
"ALTER TABLE index_data_upgrade "
"RENAME TO index_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the |object_data| table to add the |index_data_values| column,
// remove the ON DELETE CASCADE clause, and apply the WITHOUT ROWID
// optimization.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Insert all the data.
"INSERT INTO object_data_upgrade "
"SELECT "
"object_data.object_store_id, "
"upgrade_key(object_data.key_value), "
"temp_index_data_values.index_data_values, "
"object_data.file_ids, "
"object_data.data "
"FROM object_data "
"LEFT JOIN temp_index_data_values "
"ON object_data.object_store_id = "
"temp_index_data_values.object_store_id "
"AND upgrade_key(object_data.key_value) = "
"temp_index_data_values.key;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// The temporary table is no longer needed.
"DROP TABLE temp_index_data_values;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// The old table is no longer needed.
"DROP TABLE object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Rename the table.
"ALTER TABLE object_data_upgrade "
"RENAME TO object_data;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the |object_store_index| table to remove the UNIQUE constraint and
// the ON DELETE CASCADE clause.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO object_store_index_upgrade "
"SELECT * "
"FROM object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE object_store_index_upgrade "
"RENAME TO object_store_index;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the |object_store| table to remove the UNIQUE constraint.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("INSERT INTO object_store_upgrade "
"SELECT * "
"FROM object_store;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TABLE object_store;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE object_store_upgrade "
"RENAME TO object_store;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update the |database| table to include the origin, vacuum information, and
// apply the WITHOUT ROWID optimization.
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("INSERT INTO database_upgrade "
"SELECT name, :origin, version, 0, 0, 0 "
"FROM database;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("origin"), aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv =
aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING("DROP TABLE database;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE database_upgrade "
"RENAME TO database;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
{
// Make sure there's only one entry in the |database| table.
nsCOMPtr<mozIStorageStatement> stmt;
MOZ_ASSERT(NS_SUCCEEDED(
aConnection->CreateStatement(NS_LITERAL_CSTRING("SELECT COUNT(*) "
"FROM database;"),
getter_AddRefs(stmt))));
bool hasResult;
MOZ_ASSERT(NS_SUCCEEDED(stmt->ExecuteStep(&hasResult)));
int64_t count;
MOZ_ASSERT(NS_SUCCEEDED(stmt->GetInt64(0, &count)));
MOZ_ASSERT(count == 1);
}
#endif
// Recreate file table triggers.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids);"
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_update_trigger "
"AFTER UPDATE OF file_ids ON object_data "
"WHEN OLD.file_ids IS NOT NULL OR NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NEW.file_ids);"
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE TRIGGER object_data_delete_trigger "
"AFTER DELETE ON object_data "
"WHEN OLD.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NULL);"
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Finally, turn on auto_vacuum mode. We use full auto_vacuum mode to reclaim
// disk space on mobile devices (at the cost of some COMMIT speed), and
// incremental auto_vacuum mode on desktop builds.
rv = aConnection->ExecuteSimpleSQL(
#ifdef IDB_MOBILE
NS_LITERAL_CSTRING("PRAGMA auto_vacuum = FULL;")
#else
NS_LITERAL_CSTRING("PRAGMA auto_vacuum = INCREMENTAL;")
#endif
);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(18, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom17_0To18_0(mozIStorageConnection* aConnection,
const nsACString& aOrigin) {
MOZ_ASSERT(aConnection);
MOZ_ASSERT(!aOrigin.IsEmpty());
AUTO_PROFILER_LABEL("UpgradeSchemaFrom17_0To18_0", DOM);
return UpgradeSchemaFrom17_0To18_0Helper::DoUpgrade(aConnection, aOrigin);
}
nsresult UpgradeSchemaFrom18_0To19_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
nsresult rv;
AUTO_PROFILER_LABEL("UpgradeSchemaFrom18_0To19_0", DOM);
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE object_store_index "
"ADD COLUMN locale TEXT;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE object_store_index "
"ADD COLUMN is_auto_locale BOOLEAN;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE index_data "
"ADD COLUMN value_locale BLOB;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("ALTER TABLE unique_index_data "
"ADD COLUMN value_locale BLOB;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX index_data_value_locale_index "
"ON index_data (index_id, value_locale, object_data_key, value) "
"WHERE value_locale IS NOT NULL;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX unique_index_data_value_locale_index "
"ON unique_index_data (index_id, value_locale, object_data_key, value) "
"WHERE value_locale IS NOT NULL;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(19, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class UpgradeFileIdsFunction final : public mozIStorageFunction {
RefPtr<FileManager> mFileManager;
public:
UpgradeFileIdsFunction() { AssertIsOnIOThread(); }
nsresult Init(nsIFile* aFMDirectory, mozIStorageConnection* aConnection);
NS_DECL_ISUPPORTS
private:
~UpgradeFileIdsFunction() {
AssertIsOnIOThread();
if (mFileManager) {
mFileManager->Invalidate();
}
}
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult) override;
};
nsresult UpgradeSchemaFrom19_0To20_0(nsIFile* aFMDirectory,
mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom19_0To20_0", DOM);
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("SELECT count(*) "
"FROM object_data "
"WHERE file_ids IS NOT NULL"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t count;
{
mozStorageStatementScoper scoper(stmt);
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!hasResult)) {
MOZ_ASSERT(false, "This should never be possible!");
return NS_ERROR_FAILURE;
}
count = stmt->AsInt64(0);
if (NS_WARN_IF(count < 0)) {
MOZ_ASSERT(false, "This should never be possible!");
return NS_ERROR_FAILURE;
}
}
if (count == 0) {
// Nothing to upgrade.
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(20, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
RefPtr<UpgradeFileIdsFunction> function = new UpgradeFileIdsFunction();
rv = function->Init(aFMDirectory, aConnection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
NS_NAMED_LITERAL_CSTRING(functionName, "upgrade");
rv = aConnection->CreateFunction(functionName, 2, function);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Disable update trigger.
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("DROP TRIGGER object_data_update_trigger;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("UPDATE object_data "
"SET file_ids = upgrade(file_ids, data) "
"WHERE file_ids IS NOT NULL;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Enable update trigger.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_update_trigger "
"AFTER UPDATE OF file_ids ON object_data "
"FOR EACH ROW "
"WHEN OLD.file_ids IS NOT NULL OR NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NEW.file_ids); "
"END;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->RemoveFunction(functionName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(20, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class UpgradeIndexDataValuesFunction final : public mozIStorageFunction {
public:
UpgradeIndexDataValuesFunction() { AssertIsOnIOThread(); }
NS_DECL_ISUPPORTS
private:
~UpgradeIndexDataValuesFunction() { AssertIsOnIOThread(); }
nsresult ReadOldCompressedIDVFromBlob(const uint8_t* aBlobData,
uint32_t aBlobDataLength,
nsTArray<IndexDataValue>& aIndexValues);
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult) override;
};
NS_IMPL_ISUPPORTS(UpgradeIndexDataValuesFunction, mozIStorageFunction)
nsresult UpgradeIndexDataValuesFunction::ReadOldCompressedIDVFromBlob(
const uint8_t* aBlobData, uint32_t aBlobDataLength,
nsTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aBlobData);
MOZ_ASSERT(aBlobDataLength);
MOZ_ASSERT(aIndexValues.IsEmpty());
const uint8_t* blobDataIter = aBlobData;
const uint8_t* blobDataEnd = aBlobData + aBlobDataLength;
int64_t indexId;
bool unique;
bool nextIndexIdAlreadyRead = false;
while (blobDataIter < blobDataEnd) {
if (!nextIndexIdAlreadyRead) {
ReadCompressedIndexId(&blobDataIter, blobDataEnd, &indexId, &unique);
}
nextIndexIdAlreadyRead = false;
if (NS_WARN_IF(blobDataIter == blobDataEnd)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
// Read key buffer length.
const uint64_t keyBufferLength =
ReadCompressedNumber(&blobDataIter, blobDataEnd);
if (NS_WARN_IF(blobDataIter == blobDataEnd) ||
NS_WARN_IF(keyBufferLength > uint64_t(UINT32_MAX)) ||
NS_WARN_IF(blobDataIter + keyBufferLength > blobDataEnd)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
nsCString keyBuffer(reinterpret_cast<const char*>(blobDataIter),
uint32_t(keyBufferLength));
blobDataIter += keyBufferLength;
IndexDataValue idv(indexId, unique, Key(keyBuffer));
if (blobDataIter < blobDataEnd) {
// Read either a sort key buffer length or an index id.
uint64_t maybeIndexId = ReadCompressedNumber(&blobDataIter, blobDataEnd);
// Locale-aware indexes haven't been around long enough to have any users,
// we can safely assume all sort key buffer lengths will be zero.
if (maybeIndexId != 0) {
if (maybeIndexId % 2) {
unique = true;
maybeIndexId--;
} else {
unique = false;
}
indexId = maybeIndexId / 2;
nextIndexIdAlreadyRead = true;
}
}
if (NS_WARN_IF(!aIndexValues.InsertElementSorted(idv, fallible))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
}
MOZ_ASSERT(blobDataIter == blobDataEnd);
return NS_OK;
}
NS_IMETHODIMP
UpgradeIndexDataValuesFunction::OnFunctionCall(
mozIStorageValueArray* aArguments, nsIVariant** aResult) {
MOZ_ASSERT(aArguments);
MOZ_ASSERT(aResult);
AUTO_PROFILER_LABEL("UpgradeIndexDataValuesFunction::OnFunctionCall", DOM);
uint32_t argc;
nsresult rv = aArguments->GetNumEntries(&argc);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (argc != 1) {
NS_WARNING("Don't call me with the wrong number of arguments!");
return NS_ERROR_UNEXPECTED;
}
int32_t type;
rv = aArguments->GetTypeOfIndex(0, &type);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (type != mozIStorageStatement::VALUE_TYPE_BLOB) {
NS_WARNING("Don't call me with the wrong type of arguments!");
return NS_ERROR_UNEXPECTED;
}
const uint8_t* oldBlob;
uint32_t oldBlobLength;
rv = aArguments->GetSharedBlob(0, &oldBlobLength, &oldBlob);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
AutoTArray<IndexDataValue, 32> oldIdv;
rv = ReadOldCompressedIDVFromBlob(oldBlob, oldBlobLength, oldIdv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
UniqueFreePtr<uint8_t> newIdv;
uint32_t newIdvLength;
rv = MakeCompressedIndexDataValues(oldIdv, newIdv, &newIdvLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
std::pair<uint8_t*, int> data(newIdv.release(), newIdvLength);
nsCOMPtr<nsIVariant> result = new storage::AdoptedBlobVariant(data);
result.forget(aResult);
return NS_OK;
}
nsresult UpgradeSchemaFrom20_0To21_0(mozIStorageConnection* aConnection) {
// This should have been part of the 18 to 19 upgrade, where we changed the
// layout of the index_data_values blobs but didn't upgrade the existing data.
// See bug 1202788.
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom20_0To21_0", DOM);
RefPtr<UpgradeIndexDataValuesFunction> function =
new UpgradeIndexDataValuesFunction();
NS_NAMED_LITERAL_CSTRING(functionName, "upgrade_idv");
nsresult rv = aConnection->CreateFunction(functionName, 1, function);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE object_data "
"SET index_data_values = upgrade_idv(index_data_values) "
"WHERE index_data_values IS NOT NULL;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->RemoveFunction(functionName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(21, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom21_0To22_0(mozIStorageConnection* aConnection) {
// The only change between 21 and 22 was a different structured clone format,
// but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(22, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom22_0To23_0(mozIStorageConnection* aConnection,
const nsACString& aOrigin) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
MOZ_ASSERT(!aOrigin.IsEmpty());
AUTO_PROFILER_LABEL("UpgradeSchemaFrom22_0To23_0", DOM);
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv =
aConnection->CreateStatement(NS_LITERAL_CSTRING("UPDATE database "
"SET origin = :origin;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("origin"), aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(23, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom23_0To24_0(mozIStorageConnection* aConnection) {
// The only change between 23 and 24 was a different structured clone format,
// but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(24, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult UpgradeSchemaFrom24_0To25_0(mozIStorageConnection* aConnection) {
// The changes between 24 and 25 were an upgraded snappy library, a different
// structured clone format and a different file_ds format. But everything is
// backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(25, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class StripObsoleteOriginAttributesFunction final : public mozIStorageFunction {
public:
NS_DECL_ISUPPORTS
private:
~StripObsoleteOriginAttributesFunction() {}
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult) override {
MOZ_ASSERT(aArguments);
MOZ_ASSERT(aResult);
AUTO_PROFILER_LABEL("StripObsoleteOriginAttributesFunction::OnFunctionCall",
DOM);
#ifdef DEBUG
{
uint32_t argCount;
MOZ_ALWAYS_SUCCEEDS(aArguments->GetNumEntries(&argCount));
MOZ_ASSERT(argCount == 1);
int32_t type;
MOZ_ALWAYS_SUCCEEDS(aArguments->GetTypeOfIndex(0, &type));
MOZ_ASSERT(type == mozIStorageValueArray::VALUE_TYPE_TEXT);
}
#endif
nsCString origin;
nsresult rv = aArguments->GetUTF8String(0, origin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Deserialize and re-serialize to automatically drop any obsolete origin
// attributes.
OriginAttributes oa;
nsCString originNoSuffix;
bool ok = oa.PopulateFromOrigin(origin, originNoSuffix);
if (NS_WARN_IF(!ok)) {
return NS_ERROR_FAILURE;
}
nsCString suffix;
oa.CreateSuffix(suffix);
nsCOMPtr<nsIVariant> result =
new mozilla::storage::UTF8TextVariant(originNoSuffix + suffix);
result.forget(aResult);
return NS_OK;
}
};
nsresult UpgradeSchemaFrom25_0To26_0(mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("UpgradeSchemaFrom25_0To26_0", DOM);
NS_NAMED_LITERAL_CSTRING(functionName, "strip_obsolete_attributes");
nsCOMPtr<mozIStorageFunction> stripObsoleteAttributes =
new StripObsoleteOriginAttributesFunction();
nsresult rv = aConnection->CreateFunction(functionName,
/* aNumArguments */ 1,
stripObsoleteAttributes);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("UPDATE DATABASE "
"SET origin = strip_obsolete_attributes(origin) "
"WHERE origin LIKE '%^%';"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->RemoveFunction(functionName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(26, 0));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult GetDatabaseFileURL(nsIFile* aDatabaseFile,
PersistenceType aPersistenceType,
const nsACString& aGroup, const nsACString& aOrigin,
uint32_t aTelemetryId, nsIFileURL** aResult) {
MOZ_ASSERT(aDatabaseFile);
MOZ_ASSERT(aResult);
nsresult rv;
nsCOMPtr<nsIProtocolHandler> protocolHandler(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "file", &rv));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFileProtocolHandler> fileHandler(
do_QueryInterface(protocolHandler, &rv));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIURIMutator> mutator;
rv = fileHandler->NewFileURIMutator(aDatabaseFile, getter_AddRefs(mutator));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFileURL> fileUrl;
nsAutoCString type;
PersistenceTypeToText(aPersistenceType, type);
nsAutoCString telemetryFilenameClause;
if (aTelemetryId) {
telemetryFilenameClause.AssignLiteral("&telemetryFilename=indexedDB-");
telemetryFilenameClause.AppendInt(aTelemetryId);
telemetryFilenameClause.AppendLiteral(".sqlite");
}
rv = NS_MutateURI(mutator)
.SetQuery(NS_LITERAL_CSTRING("persistenceType=") + type +
NS_LITERAL_CSTRING("&group=") + aGroup +
NS_LITERAL_CSTRING("&origin=") + aOrigin +
NS_LITERAL_CSTRING("&cache=private") +
telemetryFilenameClause)
.Finalize(fileUrl);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
fileUrl.forget(aResult);
return NS_OK;
}
nsresult SetDefaultPragmas(mozIStorageConnection* aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConnection);
static const char kBuiltInPragmas[] =
// We use foreign keys in DEBUG builds only because there is a performance
// cost to using them.
"PRAGMA foreign_keys = "
#ifdef DEBUG
"ON"
#else
"OFF"
#endif
";"
// The "INSERT OR REPLACE" statement doesn't fire the update trigger,
// instead it fires only the insert trigger. This confuses the update
// refcount function. This behavior changes with enabled recursive
// triggers, so the statement fires the delete trigger first and then the
// insert trigger.
"PRAGMA recursive_triggers = ON;"
// We aggressively truncate the database file when idle so don't bother
// overwriting the WAL with 0 during active periods.
"PRAGMA secure_delete = OFF;";
nsresult rv = aConnection->ExecuteSimpleSQL(nsDependentCString(
kBuiltInPragmas, LiteralStringLength(kBuiltInPragmas)));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoCString pragmaStmt;
pragmaStmt.AssignLiteral("PRAGMA synchronous = ");
if (IndexedDatabaseManager::FullSynchronous()) {
pragmaStmt.AppendLiteral("FULL");
} else {
pragmaStmt.AppendLiteral("NORMAL");
}
pragmaStmt.Append(';');
rv = aConnection->ExecuteSimpleSQL(pragmaStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifndef IDB_MOBILE
if (kSQLiteGrowthIncrement) {
// This is just an optimization so ignore the failure if the disk is
// currently too full.
rv =
aConnection->SetGrowthIncrement(kSQLiteGrowthIncrement, EmptyCString());
if (rv != NS_ERROR_FILE_TOO_BIG && NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
#endif // IDB_MOBILE
return NS_OK;
}
nsresult SetJournalMode(mozIStorageConnection* aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConnection);
// Try enabling WAL mode. This can fail in various circumstances so we have to
// check the results here.
NS_NAMED_LITERAL_CSTRING(journalModeQueryStart, "PRAGMA journal_mode = ");
NS_NAMED_LITERAL_CSTRING(journalModeWAL, "wal");
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(
journalModeQueryStart + journalModeWAL, getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
nsCString journalMode;
rv = stmt->GetUTF8String(0, journalMode);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (journalMode.Equals(journalModeWAL)) {
// WAL mode successfully enabled. Maybe set limits on its size here.
if (kMaxWALPages >= 0) {
nsAutoCString pageCount;
pageCount.AppendInt(kMaxWALPages);
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA wal_autocheckpoint = ") + pageCount);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
} else {
NS_WARNING("Failed to set WAL mode, falling back to normal journal mode.");
#ifdef IDB_MOBILE
rv = aConnection->ExecuteSimpleSQL(journalModeQueryStart +
NS_LITERAL_CSTRING("truncate"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#endif
}
return NS_OK;
}
template <class FileOrURLType>
struct StorageOpenTraits;
template <>
struct StorageOpenTraits<nsIFileURL*> {
static nsresult Open(mozIStorageService* aStorageService,
nsIFileURL* aFileURL,
mozIStorageConnection** aConnection) {
return aStorageService->OpenDatabaseWithFileURL(aFileURL, aConnection);
}
#ifdef DEBUG
static void GetPath(nsIFileURL* aFileURL, nsCString& aPath) {
MOZ_ALWAYS_SUCCEEDS(aFileURL->GetFileName(aPath));
}
#endif
};
template <>
struct StorageOpenTraits<nsIFile*> {
static nsresult Open(mozIStorageService* aStorageService, nsIFile* aFile,
mozIStorageConnection** aConnection) {
return aStorageService->OpenUnsharedDatabase(aFile, aConnection);
}
#ifdef DEBUG
static void GetPath(nsIFile* aFile, nsCString& aPath) {
nsString path;
MOZ_ALWAYS_SUCCEEDS(aFile->GetPath(path));
LossyCopyUTF16toASCII(path, aPath);
}
#endif
};
template <template <class> class SmartPtr, class FileOrURLType>
struct StorageOpenTraits<SmartPtr<FileOrURLType>>
: public StorageOpenTraits<FileOrURLType*> {};
template <class FileOrURLType>
nsresult OpenDatabaseAndHandleBusy(mozIStorageService* aStorageService,
FileOrURLType aFileOrURL,
mozIStorageConnection** aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aStorageService);
MOZ_ASSERT(aFileOrURL);
MOZ_ASSERT(aConnection);
nsCOMPtr<mozIStorageConnection> connection;
nsresult rv = StorageOpenTraits<FileOrURLType>::Open(
aStorageService, aFileOrURL, getter_AddRefs(connection));
if (rv == NS_ERROR_STORAGE_BUSY) {
#ifdef DEBUG
{
nsCString path;
StorageOpenTraits<FileOrURLType>::GetPath(aFileOrURL, path);
nsPrintfCString message(
"Received NS_ERROR_STORAGE_BUSY when attempting "
"to open database '%s', retrying for up to 10 "
"seconds",
path.get());
NS_WARNING(message.get());
}
#endif
// Another thread must be checkpointing the WAL. Wait up to 10 seconds for
// that to complete.
TimeStamp start = TimeStamp::NowLoRes();
while (true) {
PR_Sleep(PR_MillisecondsToInterval(100));
rv = StorageOpenTraits<FileOrURLType>::Open(aStorageService, aFileOrURL,
getter_AddRefs(connection));
if (rv != NS_ERROR_STORAGE_BUSY ||
TimeStamp::NowLoRes() - start > TimeDuration::FromSeconds(10)) {
break;
}
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
connection.forget(aConnection);
return NS_OK;
}
nsresult CreateStorageConnection(nsIFile* aDBFile, nsIFile* aFMDirectory,
const nsAString& aName,
PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
uint32_t aTelemetryId,
mozIStorageConnection** aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aDBFile);
MOZ_ASSERT(aFMDirectory);
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("CreateStorageConnection", DOM);
nsresult rv;
bool exists;
nsCOMPtr<nsIFileURL> dbFileUrl;
rv = GetDatabaseFileURL(aDBFile, aPersistenceType, aGroup, aOrigin,
aTelemetryId, getter_AddRefs(dbFileUrl));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageService> ss =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageConnection> connection;
rv = OpenDatabaseAndHandleBusy(ss, dbFileUrl, getter_AddRefs(connection));
if (rv == NS_ERROR_FILE_CORRUPTED) {
// If we're just opening the database during origin initialization, then
// we don't want to erase any files. The failure here will fail origin
// initialization too.
if (aName.IsVoid()) {
return rv;
}
// Nuke the database file.
rv = aDBFile->Remove(false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aFMDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
bool isDirectory;
rv = aFMDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
rv = aFMDirectory->Remove(true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = OpenDatabaseAndHandleBusy(ss, dbFileUrl, getter_AddRefs(connection));
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = SetDefaultPragmas(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = connection->EnableModule(NS_LITERAL_CSTRING("filesystem"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Check to make sure that the database schema is correct.
int32_t schemaVersion;
rv = connection->GetSchemaVersion(&schemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Unknown schema will fail origin initialization too.
if (!schemaVersion && aName.IsVoid()) {
IDB_WARNING("Unable to open IndexedDB database, schema is not set!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (schemaVersion > kSQLiteSchemaVersion) {
IDB_WARNING("Unable to open IndexedDB database, schema is too high!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
bool journalModeSet = false;
if (schemaVersion != kSQLiteSchemaVersion) {
const bool newDatabase = !schemaVersion;
if (newDatabase) {
// Set the page size first.
if (kSQLitePageSizeOverride) {
rv = connection->ExecuteSimpleSQL(nsPrintfCString(
"PRAGMA page_size = %" PRIu32 ";", kSQLitePageSizeOverride));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// We have to set the auto_vacuum mode before opening a transaction.
rv = connection->ExecuteSimpleSQL(
#ifdef IDB_MOBILE
// Turn on full auto_vacuum mode to reclaim disk space on mobile
// devices (at the cost of some COMMIT speed).
NS_LITERAL_CSTRING("PRAGMA auto_vacuum = FULL;")
#else
// Turn on incremental auto_vacuum mode on desktop builds.
NS_LITERAL_CSTRING("PRAGMA auto_vacuum = INCREMENTAL;")
#endif
);
if (rv == NS_ERROR_FILE_NO_DEVICE_SPACE) {
// mozstorage translates SQLITE_FULL to NS_ERROR_FILE_NO_DEVICE_SPACE,
// which we know better as NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR.
rv = NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = SetJournalMode(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
journalModeSet = true;
} else {
#ifdef DEBUG
// Disable foreign key support while upgrading. This has to be done before
// starting a transaction.
MOZ_ALWAYS_SUCCEEDS(connection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA foreign_keys = OFF;")));
#endif
}
bool vacuumNeeded = false;
mozStorageTransaction transaction(
connection, false, mozIStorageConnection::TRANSACTION_IMMEDIATE);
if (newDatabase) {
rv = CreateTables(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(NS_SUCCEEDED(connection->GetSchemaVersion(&schemaVersion)));
MOZ_ASSERT(schemaVersion == kSQLiteSchemaVersion);
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = connection->CreateStatement(
NS_LITERAL_CSTRING("INSERT INTO database (name, origin) "
"VALUES (:name, :origin)"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), aName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("origin"), aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
// This logic needs to change next time we change the schema!
static_assert(kSQLiteSchemaVersion == int32_t((26 << 4) + 0),
"Upgrade function needed due to schema version increase.");
while (schemaVersion != kSQLiteSchemaVersion) {
if (schemaVersion == 4) {
rv = UpgradeSchemaFrom4To5(connection);
} else if (schemaVersion == 5) {
rv = UpgradeSchemaFrom5To6(connection);
} else if (schemaVersion == 6) {
rv = UpgradeSchemaFrom6To7(connection);
} else if (schemaVersion == 7) {
rv = UpgradeSchemaFrom7To8(connection);
} else if (schemaVersion == 8) {
rv = UpgradeSchemaFrom8To9_0(connection);
vacuumNeeded = true;
} else if (schemaVersion == MakeSchemaVersion(9, 0)) {
rv = UpgradeSchemaFrom9_0To10_0(connection);
} else if (schemaVersion == MakeSchemaVersion(10, 0)) {
rv = UpgradeSchemaFrom10_0To11_0(connection);
} else if (schemaVersion == MakeSchemaVersion(11, 0)) {
rv = UpgradeSchemaFrom11_0To12_0(connection);
} else if (schemaVersion == MakeSchemaVersion(12, 0)) {
rv = UpgradeSchemaFrom12_0To13_0(connection, &vacuumNeeded);
} else if (schemaVersion == MakeSchemaVersion(13, 0)) {
rv = UpgradeSchemaFrom13_0To14_0(connection);
} else if (schemaVersion == MakeSchemaVersion(14, 0)) {
rv = UpgradeSchemaFrom14_0To15_0(connection);
} else if (schemaVersion == MakeSchemaVersion(15, 0)) {
rv = UpgradeSchemaFrom15_0To16_0(connection);
} else if (schemaVersion == MakeSchemaVersion(16, 0)) {
rv = UpgradeSchemaFrom16_0To17_0(connection);
} else if (schemaVersion == MakeSchemaVersion(17, 0)) {
rv = UpgradeSchemaFrom17_0To18_0(connection, aOrigin);
vacuumNeeded = true;
} else if (schemaVersion == MakeSchemaVersion(18, 0)) {
rv = UpgradeSchemaFrom18_0To19_0(connection);
} else if (schemaVersion == MakeSchemaVersion(19, 0)) {
rv = UpgradeSchemaFrom19_0To20_0(aFMDirectory, connection);
} else if (schemaVersion == MakeSchemaVersion(20, 0)) {
rv = UpgradeSchemaFrom20_0To21_0(connection);
} else if (schemaVersion == MakeSchemaVersion(21, 0)) {
rv = UpgradeSchemaFrom21_0To22_0(connection);
} else if (schemaVersion == MakeSchemaVersion(22, 0)) {
rv = UpgradeSchemaFrom22_0To23_0(connection, aOrigin);
} else if (schemaVersion == MakeSchemaVersion(23, 0)) {
rv = UpgradeSchemaFrom23_0To24_0(connection);
} else if (schemaVersion == MakeSchemaVersion(24, 0)) {
rv = UpgradeSchemaFrom24_0To25_0(connection);
} else if (schemaVersion == MakeSchemaVersion(25, 0)) {
rv = UpgradeSchemaFrom25_0To26_0(connection);
} else {
IDB_WARNING(
"Unable to open IndexedDB database, no upgrade path is "
"available!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = connection->GetSchemaVersion(&schemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
MOZ_ASSERT(schemaVersion == kSQLiteSchemaVersion);
}
rv = transaction.Commit();
if (rv == NS_ERROR_FILE_NO_DEVICE_SPACE) {
// mozstorage translates SQLITE_FULL to NS_ERROR_FILE_NO_DEVICE_SPACE,
// which we know better as NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR.
rv = NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
if (!newDatabase) {
// Re-enable foreign key support after doing a foreign key check.
nsCOMPtr<mozIStorageStatement> checkStmt;
MOZ_ALWAYS_SUCCEEDS(connection->CreateStatement(
NS_LITERAL_CSTRING("PRAGMA foreign_key_check;"),
getter_AddRefs(checkStmt)));
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(checkStmt->ExecuteStep(&hasResult));
MOZ_ASSERT(!hasResult, "Database has inconsisistent foreign keys!");
MOZ_ALWAYS_SUCCEEDS(connection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA foreign_keys = OFF;")));
}
#endif
if (kSQLitePageSizeOverride && !newDatabase) {
nsCOMPtr<mozIStorageStatement> stmt;
rv = connection->CreateStatement(NS_LITERAL_CSTRING("PRAGMA page_size;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
int32_t pageSize;
rv = stmt->GetInt32(0, &pageSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(pageSize >= 512 && pageSize <= 65536);
if (kSQLitePageSizeOverride != uint32_t(pageSize)) {
// We must not be in WAL journal mode to change the page size.
rv = connection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA journal_mode = DELETE;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = connection->CreateStatement(
NS_LITERAL_CSTRING("PRAGMA journal_mode;"), getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
nsCString journalMode;
rv = stmt->GetUTF8String(0, journalMode);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (journalMode.EqualsLiteral("delete")) {
// Successfully set to rollback journal mode so changing the page size
// is possible with a VACUUM.
rv = connection->ExecuteSimpleSQL(nsPrintfCString(
"PRAGMA page_size = %" PRIu32 ";", kSQLitePageSizeOverride));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// We will need to VACUUM in order to change the page size.
vacuumNeeded = true;
} else {
NS_WARNING(
"Failed to set journal_mode for database, unable to "
"change the page size!");
}
}
}
if (vacuumNeeded) {
rv = connection->ExecuteSimpleSQL(NS_LITERAL_CSTRING("VACUUM;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (newDatabase || vacuumNeeded) {
if (journalModeSet) {
// Make sure we checkpoint to get an accurate file size.
rv = connection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA wal_checkpoint(FULL);"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
int64_t fileSize;
rv = aDBFile->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(fileSize > 0);
PRTime vacuumTime = PR_Now();
MOZ_ASSERT(vacuumTime);
nsCOMPtr<mozIStorageStatement> vacuumTimeStmt;
rv = connection->CreateStatement(
NS_LITERAL_CSTRING("UPDATE database "
"SET last_vacuum_time = :time"
", last_vacuum_size = :size;"),
getter_AddRefs(vacuumTimeStmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = vacuumTimeStmt->BindInt64ByName(NS_LITERAL_CSTRING("time"),
vacuumTime);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv =
vacuumTimeStmt->BindInt64ByName(NS_LITERAL_CSTRING("size"), fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = vacuumTimeStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
if (!journalModeSet) {
rv = SetJournalMode(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
connection.forget(aConnection);
return NS_OK;
}
already_AddRefed<nsIFile> GetFileForPath(const nsAString& aPath) {
MOZ_ASSERT(!aPath.IsEmpty());
nsCOMPtr<nsIFile> file;
if (NS_WARN_IF(
NS_FAILED(NS_NewLocalFile(aPath, false, getter_AddRefs(file))))) {
return nullptr;
}
return file.forget();
}
nsresult GetStorageConnection(nsIFile* aDatabaseFile,
PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin, uint32_t aTelemetryId,
mozIStorageConnection** aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aDatabaseFile);
MOZ_ASSERT(aConnection);
AUTO_PROFILER_LABEL("GetStorageConnection", DOM);
bool exists;
nsresult rv = aDatabaseFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!exists)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsCOMPtr<nsIFileURL> dbFileUrl;
rv = GetDatabaseFileURL(aDatabaseFile, aPersistenceType, aGroup, aOrigin,
aTelemetryId, getter_AddRefs(dbFileUrl));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageService> ss =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageConnection> connection;
rv = OpenDatabaseAndHandleBusy(ss, dbFileUrl, getter_AddRefs(connection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = SetDefaultPragmas(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = SetJournalMode(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
connection.forget(aConnection);
return NS_OK;
}
nsresult GetStorageConnection(const nsAString& aDatabaseFilePath,
PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin, uint32_t aTelemetryId,
mozIStorageConnection** aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(!aDatabaseFilePath.IsEmpty());
MOZ_ASSERT(StringEndsWith(aDatabaseFilePath, NS_LITERAL_STRING(".sqlite")));
MOZ_ASSERT(aConnection);
nsCOMPtr<nsIFile> dbFile = GetFileForPath(aDatabaseFilePath);
if (NS_WARN_IF(!dbFile)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return GetStorageConnection(dbFile, aPersistenceType, aGroup, aOrigin,
aTelemetryId, aConnection);
}
/*******************************************************************************
* ConnectionPool declarations
******************************************************************************/
class DatabaseConnection final {
friend class ConnectionPool;
enum class CheckpointMode { Full, Restart, Truncate };
public:
class AutoSavepoint;
class CachedStatement;
class UpdateRefcountFunction;
private:
nsCOMPtr<mozIStorageConnection> mStorageConnection;
RefPtr<FileManager> mFileManager;
nsInterfaceHashtable<nsCStringHashKey, mozIStorageStatement>
mCachedStatements;
RefPtr<UpdateRefcountFunction> mUpdateRefcountFunction;
RefPtr<QuotaObject> mQuotaObject;
RefPtr<QuotaObject> mJournalQuotaObject;
bool mInReadTransaction;
bool mInWriteTransaction;
#ifdef DEBUG
uint32_t mDEBUGSavepointCount;
#endif
NS_DECL_OWNINGTHREAD
public:
void AssertIsOnConnectionThread() const {
NS_ASSERT_OWNINGTHREAD(DatabaseConnection);
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DatabaseConnection)
mozIStorageConnection* GetStorageConnection() const {
if (mStorageConnection) {
AssertIsOnConnectionThread();
return mStorageConnection;
}
return nullptr;
}
UpdateRefcountFunction* GetUpdateRefcountFunction() const {
AssertIsOnConnectionThread();
return mUpdateRefcountFunction;
}
nsresult GetCachedStatement(const nsACString& aQuery,
CachedStatement* aCachedStatement);
nsresult BeginWriteTransaction();
nsresult CommitWriteTransaction();
void RollbackWriteTransaction();
void FinishWriteTransaction();
nsresult StartSavepoint();
nsresult ReleaseSavepoint();
nsresult RollbackSavepoint();
nsresult Checkpoint() {
AssertIsOnConnectionThread();
return CheckpointInternal(CheckpointMode::Full);
}
void DoIdleProcessing(bool aNeedsCheckpoint);
void Close();
nsresult DisableQuotaChecks();
void EnableQuotaChecks();
private:
DatabaseConnection(mozIStorageConnection* aStorageConnection,
FileManager* aFileManager);
~DatabaseConnection();
nsresult Init();
nsresult CheckpointInternal(CheckpointMode aMode);
nsresult GetFreelistCount(CachedStatement& aCachedStatement,
uint32_t* aFreelistCount);
nsresult ReclaimFreePagesWhileIdle(CachedStatement& aFreelistStatement,
CachedStatement& aRollbackStatement,
uint32_t aFreelistCount,
bool aNeedsCheckpoint,
bool* aFreedSomePages);
nsresult GetFileSize(const nsAString& aPath, int64_t* aResult);
};
class MOZ_STACK_CLASS DatabaseConnection::AutoSavepoint final {
DatabaseConnection* mConnection;
#ifdef DEBUG
const TransactionBase* mDEBUGTransaction;
#endif
public:
AutoSavepoint();
~AutoSavepoint();
nsresult Start(const TransactionBase* aTransaction);
nsresult Commit();
};
class DatabaseConnection::CachedStatement final {
friend class DatabaseConnection;
nsCOMPtr<mozIStorageStatement> mStatement;
Maybe<mozStorageStatementScoper> mScoper;
#ifdef DEBUG
DatabaseConnection* mDEBUGConnection;
#endif
public:
CachedStatement();
~CachedStatement();
void AssertIsOnConnectionThread() const {
#ifdef DEBUG
if (mDEBUGConnection) {
mDEBUGConnection->AssertIsOnConnectionThread();
}
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
#endif
}
operator mozIStorageStatement*() const;
mozIStorageStatement* operator->() const MOZ_NO_ADDREF_RELEASE_ON_RETURN;
void Reset();
private:
// Only called by DatabaseConnection.
void Assign(DatabaseConnection* aConnection,
already_AddRefed<mozIStorageStatement> aStatement);
// No funny business allowed.
CachedStatement(const CachedStatement&) = delete;
CachedStatement& operator=(const CachedStatement&) = delete;
};
class DatabaseConnection::UpdateRefcountFunction final
: public mozIStorageFunction {
class DatabaseUpdateFunction;
class FileInfoEntry;
enum class UpdateType { Increment, Decrement };
DatabaseConnection* mConnection;
FileManager* mFileManager;
nsClassHashtable<nsUint64HashKey, FileInfoEntry> mFileInfoEntries;
nsDataHashtable<nsUint64HashKey, FileInfoEntry*> mSavepointEntriesIndex;
nsTArray<int64_t> mJournalsToCreateBeforeCommit;
nsTArray<int64_t> mJournalsToRemoveAfterCommit;
nsTArray<int64_t> mJournalsToRemoveAfterAbort;
bool mInSavepoint;
public:
NS_DECL_ISUPPORTS
NS_DECL_MOZISTORAGEFUNCTION
UpdateRefcountFunction(DatabaseConnection* aConnection,
FileManager* aFileManager);
nsresult WillCommit();
void DidCommit();
void DidAbort();
void StartSavepoint();
void ReleaseSavepoint();
void RollbackSavepoint();
void Reset();
private:
~UpdateRefcountFunction() = default;
nsresult ProcessValue(mozIStorageValueArray* aValues, int32_t aIndex,
UpdateType aUpdateType);
nsresult CreateJournals();
nsresult RemoveJournals(const nsTArray<int64_t>& aJournals);
};
class DatabaseConnection::UpdateRefcountFunction::DatabaseUpdateFunction final {
CachedStatement mUpdateStatement;
CachedStatement mSelectStatement;
CachedStatement mInsertStatement;
UpdateRefcountFunction* mFunction;
nsresult mErrorCode;
public:
explicit DatabaseUpdateFunction(UpdateRefcountFunction* aFunction)
: mFunction(aFunction), mErrorCode(NS_OK) {
MOZ_COUNT_CTOR(
DatabaseConnection::UpdateRefcountFunction::DatabaseUpdateFunction);
}
~DatabaseUpdateFunction() {
MOZ_COUNT_DTOR(
DatabaseConnection::UpdateRefcountFunction::DatabaseUpdateFunction);
}
bool Update(int64_t aId, int32_t aDelta);
nsresult ErrorCode() const { return mErrorCode; }
private:
nsresult UpdateInternal(int64_t aId, int32_t aDelta);
};
class DatabaseConnection::UpdateRefcountFunction::FileInfoEntry final {
friend class UpdateRefcountFunction;
RefPtr<FileInfo> mFileInfo;
int32_t mDelta;
int32_t mSavepointDelta;
public:
explicit FileInfoEntry(FileInfo* aFileInfo)
: mFileInfo(aFileInfo), mDelta(0), mSavepointDelta(0) {
MOZ_COUNT_CTOR(DatabaseConnection::UpdateRefcountFunction::FileInfoEntry);
}
~FileInfoEntry() {
MOZ_COUNT_DTOR(DatabaseConnection::UpdateRefcountFunction::FileInfoEntry);
}
};
class ConnectionPool final {
public:
class FinishCallback;
private:
class ConnectionRunnable;
class CloseConnectionRunnable;
struct DatabaseInfo;
struct DatabasesCompleteCallback;
class FinishCallbackWrapper;
class IdleConnectionRunnable;
struct IdleDatabaseInfo;
struct IdleResource;
struct IdleThreadInfo;
struct ThreadInfo;
class ThreadRunnable;
class TransactionInfo;
struct TransactionInfoPair;
// This mutex guards mDatabases, see below.
Mutex mDatabasesMutex;
nsTArray<IdleThreadInfo> mIdleThreads;
nsTArray<IdleDatabaseInfo> mIdleDatabases;
nsTArray<DatabaseInfo*> mDatabasesPerformingIdleMaintenance;
nsCOMPtr<nsITimer> mIdleTimer;
TimeStamp mTargetIdleTime;
// Only modifed on the owning thread, but read on multiple threads. Therefore
// all modifications and all reads off the owning thread must be protected by
// mDatabasesMutex.
nsClassHashtable<nsCStringHashKey, DatabaseInfo> mDatabases;
nsClassHashtable<nsUint64HashKey, TransactionInfo> mTransactions;
nsTArray<TransactionInfo*> mQueuedTransactions;
nsTArray<nsAutoPtr<DatabasesCompleteCallback>> mCompleteCallbacks;
uint64_t mNextTransactionId;
uint32_t mTotalThreadCount;
bool mShutdownRequested;
bool mShutdownComplete;
public:
ConnectionPool();
void AssertIsOnOwningThread() const {
NS_ASSERT_OWNINGTHREAD(ConnectionPool);
}
nsresult GetOrCreateConnection(const Database* aDatabase,
DatabaseConnection** aConnection);
uint64_t Start(const nsID& aBackgroundChildLoggingId,
const nsACString& aDatabaseId, int64_t aLoggingSerialNumber,
const nsTArray<nsString>& aObjectStoreNames,
bool aIsWriteTransaction,
TransactionDatabaseOperationBase* aTransactionOp);
void Dispatch(uint64_t aTransactionId, nsIRunnable* aRunnable);
void Finish(uint64_t aTransactionId, FinishCallback* aCallback);
void CloseDatabaseWhenIdle(const nsACString& aDatabaseId) {
Unused << CloseDatabaseWhenIdleInternal(aDatabaseId);
}
void WaitForDatabasesToComplete(nsTArray<nsCString>&& aDatabaseIds,
nsIRunnable* aCallback);
void Shutdown();
NS_INLINE_DECL_REFCOUNTING(ConnectionPool)
private:
~ConnectionPool();
static void IdleTimerCallback(nsITimer* aTimer, void* aClosure);
void Cleanup();
void AdjustIdleTimer();
void CancelIdleTimer();
void ShutdownThread(ThreadInfo& aThreadInfo);
void CloseIdleDatabases();
void ShutdownIdleThreads();
bool ScheduleTransaction(TransactionInfo* aTransactionInfo,
bool aFromQueuedTransactions);
void NoteFinishedTransaction(uint64_t aTransactionId);
void ScheduleQueuedTransactions(ThreadInfo& aThreadInfo);
void NoteIdleDatabase(DatabaseInfo* aDatabaseInfo);
void NoteClosedDatabase(DatabaseInfo* aDatabaseInfo);
bool MaybeFireCallback(DatabasesCompleteCallback* aCallback);
void PerformIdleDatabaseMaintenance(DatabaseInfo* aDatabaseInfo);
void CloseDatabase(DatabaseInfo* aDatabaseInfo);
bool CloseDatabaseWhenIdleInternal(const nsACString& aDatabaseId);
};
class ConnectionPool::ConnectionRunnable : public Runnable {
protected:
DatabaseInfo* mDatabaseInfo;
nsCOMPtr<nsIEventTarget> mOwningEventTarget;
explicit ConnectionRunnable(DatabaseInfo* aDatabaseInfo);
~ConnectionRunnable() override = default;
};
class ConnectionPool::IdleConnectionRunnable final : public ConnectionRunnable {
bool mNeedsCheckpoint;
public:
IdleConnectionRunnable(DatabaseInfo* aDatabaseInfo, bool aNeedsCheckpoint)
: ConnectionRunnable(aDatabaseInfo), mNeedsCheckpoint(aNeedsCheckpoint) {}
NS_INLINE_DECL_REFCOUNTING_INHERITED(IdleConnectionRunnable,
ConnectionRunnable)
private:
~IdleConnectionRunnable() override = default;
NS_DECL_NSIRUNNABLE
};
class ConnectionPool::CloseConnectionRunnable final
: public ConnectionRunnable {
public:
explicit CloseConnectionRunnable(DatabaseInfo* aDatabaseInfo)
: ConnectionRunnable(aDatabaseInfo) {}
NS_INLINE_DECL_REFCOUNTING_INHERITED(CloseConnectionRunnable,
ConnectionRunnable)
private:
~CloseConnectionRunnable() override = default;
NS_DECL_NSIRUNNABLE
};
struct ConnectionPool::ThreadInfo {
nsCOMPtr<nsIThread> mThread;
RefPtr<ThreadRunnable> mRunnable;
ThreadInfo();
explicit ThreadInfo(const ThreadInfo& aOther);
~ThreadInfo();
};
struct ConnectionPool::DatabaseInfo final {
friend class nsAutoPtr<DatabaseInfo>;
RefPtr<ConnectionPool> mConnectionPool;
const nsCString mDatabaseId;
RefPtr<DatabaseConnection> mConnection;
nsClassHashtable<nsStringHashKey, TransactionInfoPair> mBlockingTransactions;
nsTArray<TransactionInfo*> mTransactionsScheduledDuringClose;
nsTArray<TransactionInfo*> mScheduledWriteTransactions;
TransactionInfo* mRunningWriteTransaction;
ThreadInfo mThreadInfo;
uint32_t mReadTransactionCount;
uint32_t mWriteTransactionCount;
bool mNeedsCheckpoint;
bool mIdle;
bool mCloseOnIdle;
bool mClosing;
#ifdef DEBUG
PRThread* mDEBUGConnectionThread;
#endif
DatabaseInfo(ConnectionPool* aConnectionPool, const nsACString& aDatabaseId);
void AssertIsOnConnectionThread() const {
MOZ_ASSERT(mDEBUGConnectionThread);
MOZ_ASSERT(GetCurrentPhysicalThread() == mDEBUGConnectionThread);
}
uint64_t TotalTransactionCount() const {
return mReadTransactionCount + mWriteTransactionCount;
}
private:
~DatabaseInfo();
DatabaseInfo(const DatabaseInfo&) = delete;
DatabaseInfo& operator=(const DatabaseInfo&) = delete;
};
struct ConnectionPool::DatabasesCompleteCallback final {
friend class nsAutoPtr<DatabasesCompleteCallback>;
nsTArray<nsCString> mDatabaseIds;
nsCOMPtr<nsIRunnable> mCallback;
DatabasesCompleteCallback(nsTArray<nsCString>&& aDatabaseIds,
nsIRunnable* aCallback);
private:
~DatabasesCompleteCallback();
};
class NS_NO_VTABLE ConnectionPool::FinishCallback : public nsIRunnable {
public:
// Called on the owning thread before any additional transactions are
// unblocked.
virtual void TransactionFinishedBeforeUnblock() = 0;
// Called on the owning thread after additional transactions may have been
// unblocked.
virtual void TransactionFinishedAfterUnblock() = 0;
protected:
FinishCallback() {}
virtual ~FinishCallback() = default;
};
class ConnectionPool::FinishCallbackWrapper final : public Runnable {
RefPtr<ConnectionPool> mConnectionPool;
RefPtr<FinishCallback> mCallback;
nsCOMPtr<nsIEventTarget> mOwningEventTarget;
uint64_t mTransactionId;
bool mHasRunOnce;
public:
FinishCallbackWrapper(ConnectionPool* aConnectionPool,
uint64_t aTransactionId, FinishCallback* aCallback);
NS_INLINE_DECL_REFCOUNTING_INHERITED(FinishCallbackWrapper, Runnable)
private:
~FinishCallbackWrapper() override;
NS_DECL_NSIRUNNABLE
};
struct ConnectionPool::IdleResource {
TimeStamp mIdleTime;
protected:
explicit IdleResource(const TimeStamp& aIdleTime);
explicit IdleResource(const IdleResource& aOther) = delete;
~IdleResource();
};
struct ConnectionPool::IdleDatabaseInfo final : public IdleResource {
DatabaseInfo* mDatabaseInfo;
public:
MOZ_IMPLICIT
IdleDatabaseInfo(DatabaseInfo* aDatabaseInfo);
explicit IdleDatabaseInfo(const IdleDatabaseInfo& aOther) = delete;
~IdleDatabaseInfo();
bool operator==(const IdleDatabaseInfo& aOther) const {
return mDatabaseInfo == aOther.mDatabaseInfo;
}
bool operator<(const IdleDatabaseInfo& aOther) const {
return mIdleTime < aOther.mIdleTime;
}
};
struct ConnectionPool::IdleThreadInfo final : public IdleResource {
ThreadInfo mThreadInfo;
public:
// Boo, this is needed because nsTArray::InsertElementSorted() doesn't yet
// work with rvalue references.
MOZ_IMPLICIT
IdleThreadInfo(const ThreadInfo& aThreadInfo);
explicit IdleThreadInfo(const IdleThreadInfo& aOther) = delete;
~IdleThreadInfo();
bool operator==(const IdleThreadInfo& aOther) const {
return mThreadInfo.mRunnable == aOther.mThreadInfo.mRunnable &&
mThreadInfo.mThread == aOther.mThreadInfo.mThread;
}
bool operator<(const IdleThreadInfo& aOther) const {
return mIdleTime < aOther.mIdleTime;
}
};
class ConnectionPool::ThreadRunnable final : public Runnable {
// Only touched on the background thread.
static uint32_t sNextSerialNumber;
// Set at construction for logging.
const uint32_t mSerialNumber;
// These two values are only modified on the connection thread.
bool mFirstRun;
bool mContinueRunning;
public:
ThreadRunnable();
NS_INLINE_DECL_REFCOUNTING_INHERITED(ThreadRunnable, Runnable)
uint32_t SerialNumber() const { return mSerialNumber; }
nsCString GetThreadName() const {
return nsPrintfCString("IndexedDB #%" PRIu32, mSerialNumber);
}
private:
~ThreadRunnable() override;
NS_DECL_NSIRUNNABLE
};
class ConnectionPool::TransactionInfo final {
friend class nsAutoPtr<TransactionInfo>;
nsTHashtable<nsPtrHashKey<TransactionInfo>> mBlocking;
nsTArray<TransactionInfo*> mBlockingOrdered;
public:
DatabaseInfo* mDatabaseInfo;
const nsID mBackgroundChildLoggingId;
const nsCString mDatabaseId;
const uint64_t mTransactionId;
const int64_t mLoggingSerialNumber;
const nsTArray<nsString> mObjectStoreNames;
nsTHashtable<nsPtrHashKey<TransactionInfo>> mBlockedOn;
nsTArray<nsCOMPtr<nsIRunnable>> mQueuedRunnables;
const bool mIsWriteTransaction;
bool mRunning;
#ifdef DEBUG
bool mFinished;
#endif
TransactionInfo(DatabaseInfo* aDatabaseInfo,
const nsID& aBackgroundChildLoggingId,
const nsACString& aDatabaseId, uint64_t aTransactionId,
int64_t aLoggingSerialNumber,
const nsTArray<nsString>& aObjectStoreNames,
bool aIsWriteTransaction,
TransactionDatabaseOperationBase* aTransactionOp);
void AddBlockingTransaction(TransactionInfo* aTransactionInfo);
void RemoveBlockingTransactions();
private:
~TransactionInfo();
void MaybeUnblock(TransactionInfo* aTransactionInfo);
};
struct ConnectionPool::TransactionInfoPair final {
friend class nsAutoPtr<TransactionInfoPair>;
// Multiple reading transactions can block future writes.
nsTArray<TransactionInfo*> mLastBlockingWrites;
// But only a single writing transaction can block future reads.
TransactionInfo* mLastBlockingReads;
TransactionInfoPair();
private:
~TransactionInfoPair();
};
/*******************************************************************************
* Actor class declarations
******************************************************************************/
class DatabaseOperationBase : public Runnable,
public mozIStorageProgressHandler {
friend class UpgradeFileIdsFunction;
protected:
class AutoSetProgressHandler;
typedef nsDataHashtable<nsUint64HashKey, bool> UniqueIndexTable;
nsCOMPtr<nsIEventTarget> mOwningEventTarget;
const nsID mBackgroundChildLoggingId;
const uint64_t mLoggingSerialNumber;
nsresult mResultCode;
private:
Atomic<bool> mOperationMayProceed;
bool mActorDestroyed;
public:
NS_DECL_ISUPPORTS_INHERITED
bool IsOnOwningThread() const {
MOZ_ASSERT(mOwningEventTarget);
bool current;
return NS_SUCCEEDED(mOwningEventTarget->IsOnCurrentThread(&current)) &&
current;
}
void AssertIsOnOwningThread() const {
MOZ_ASSERT(IsOnBackgroundThread());
MOZ_ASSERT(IsOnOwningThread());
}
void NoteActorDestroyed() {
AssertIsOnOwningThread();
mActorDestroyed = true;
mOperationMayProceed = false;
}
bool IsActorDestroyed() const {
AssertIsOnOwningThread();
return mActorDestroyed;
}
// May be called on any thread, but you should call IsActorDestroyed() if
// you know you're on the background thread because it is slightly faster.
bool OperationMayProceed() const { return mOperationMayProceed; }
const nsID& BackgroundChildLoggingId() const {
return mBackgroundChildLoggingId;
}
uint64_t LoggingSerialNumber() const { return mLoggingSerialNumber; }
nsresult ResultCode() const { return mResultCode; }
void SetFailureCode(nsresult aErrorCode) {
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
MOZ_ASSERT(NS_FAILED(aErrorCode));
mResultCode = aErrorCode;
}
protected:
DatabaseOperationBase(const nsID& aBackgroundChildLoggingId,
uint64_t aLoggingSerialNumber)
: Runnable("dom::indexedDB::DatabaseOperationBase"),
mOwningEventTarget(GetCurrentThreadEventTarget()),
mBackgroundChildLoggingId(aBackgroundChildLoggingId),
mLoggingSerialNumber(aLoggingSerialNumber),
mResultCode(NS_OK),
mOperationMayProceed(true),
mActorDestroyed(false) {
AssertIsOnOwningThread();
}
~DatabaseOperationBase() override { MOZ_ASSERT(mActorDestroyed); }
static void GetBindingClauseForKeyRange(const SerializedKeyRange& aKeyRange,
const nsACString& aKeyColumnName,
nsAutoCString& aBindingClause);
static uint64_t ReinterpretDoubleAsUInt64(double aDouble);
static nsresult GetStructuredCloneReadInfoFromStatement(
mozIStorageStatement* aStatement, uint32_t aDataIndex,
uint32_t aFileIdsIndex, FileManager* aFileManager,
StructuredCloneReadInfo* aInfo) {
return GetStructuredCloneReadInfoFromSource(
aStatement, aDataIndex, aFileIdsIndex, aFileManager, aInfo);
}
static nsresult GetStructuredCloneReadInfoFromValueArray(
mozIStorageValueArray* aValues, uint32_t aDataIndex,
uint32_t aFileIdsIndex, FileManager* aFileManager,
StructuredCloneReadInfo* aInfo) {
return GetStructuredCloneReadInfoFromSource(
aValues, aDataIndex, aFileIdsIndex, aFileManager, aInfo);
}
static nsresult BindKeyRangeToStatement(const SerializedKeyRange& aKeyRange,
mozIStorageStatement* aStatement);
static nsresult BindKeyRangeToStatement(const SerializedKeyRange& aKeyRange,
mozIStorageStatement* aStatement,
const nsCString& aLocale);
static void AppendConditionClause(const nsACString& aColumnName,
const nsACString& aArgName, bool aLessThan,
bool aEquals, nsAutoCString& aResult);
static nsresult GetUniqueIndexTableForObjectStore(
TransactionBase* aTransaction, int64_t aObjectStoreId,
Maybe<UniqueIndexTable>& aMaybeUniqueIndexTable);
static nsresult IndexDataValuesFromUpdateInfos(
const nsTArray<IndexUpdateInfo>& aUpdateInfos,
const UniqueIndexTable& aUniqueIndexTable,
nsTArray<IndexDataValue>& aIndexValues);
static nsresult InsertIndexTableRows(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
const Key& aObjectStoreKey,
const FallibleTArray<IndexDataValue>& aIndexValues);
static nsresult DeleteIndexDataTableRows(
DatabaseConnection* aConnection, const Key& aObjectStoreKey,
const FallibleTArray<IndexDataValue>& aIndexValues);
static nsresult DeleteObjectStoreDataTableRowsWithIndexes(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
const OptionalKeyRange& aKeyRange);
static nsresult UpdateIndexValues(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
const Key& aObjectStoreKey,
const FallibleTArray<IndexDataValue>& aIndexValues);
static nsresult ObjectStoreHasIndexes(DatabaseConnection* aConnection,
const int64_t aObjectStoreId,
bool* aHasIndexes);
private:
template <typename T>
static nsresult GetStructuredCloneReadInfoFromSource(
T* aSource, uint32_t aDataIndex, uint32_t aFileIdsIndex,
FileManager* aFileManager, StructuredCloneReadInfo* aInfo);
static nsresult GetStructuredCloneReadInfoFromBlob(
const uint8_t* aBlobData, uint32_t aBlobDataLength,
FileManager* aFileManager, const nsAString& aFileIds,
StructuredCloneReadInfo* aInfo);
static nsresult GetStructuredCloneReadInfoFromExternalBlob(
uint64_t aIntData, FileManager* aFileManager, const nsAString& aFileIds,
StructuredCloneReadInfo* aInfo);
// Not to be overridden by subclasses.
NS_DECL_MOZISTORAGEPROGRESSHANDLER
};
class MOZ_STACK_CLASS DatabaseOperationBase::AutoSetProgressHandler final {
mozIStorageConnection* mConnection;
#ifdef DEBUG
DatabaseOperationBase* mDEBUGDatabaseOp;
#endif
public:
AutoSetProgressHandler();
~AutoSetProgressHandler();
nsresult Register(mozIStorageConnection* aConnection,
DatabaseOperationBase* aDatabaseOp);
void Unregister();
};
class TransactionDatabaseOperationBase : public DatabaseOperationBase {
enum class InternalState {
Initial,
DatabaseWork,
SendingPreprocess,
WaitingForContinue,
SendingResults,
Completed
};
RefPtr<TransactionBase> mTransaction;
const int64_t mTransactionLoggingSerialNumber;
InternalState mInternalState;
const bool mTransactionIsAborted;
public:
void AssertIsOnConnectionThread() const
#ifdef DEBUG
;
#else
{
}
#endif
uint64_t StartOnConnectionPool(const nsID& aBackgroundChildLoggingId,
const nsACString& aDatabaseId,
int64_t aLoggingSerialNumber,
const nsTArray<nsString>& aObjectStoreNames,
bool aIsWriteTransaction);
void DispatchToConnectionPool();
TransactionBase* Transaction() const {
MOZ_ASSERT(mTransaction);
return mTransaction;
}
void NoteContinueReceived();
// May be overridden by subclasses if they need to perform work on the
// background thread before being dispatched. Returning false will kill the
// child actors and prevent dispatch.
virtual bool Init(TransactionBase* aTransaction);
// This callback will be called on the background thread before releasing the
// final reference to this request object. Subclasses may perform any
// additional cleanup here but must always call the base class implementation.
virtual void Cleanup();
protected:
explicit TransactionDatabaseOperationBase(TransactionBase* aTransaction);
TransactionDatabaseOperationBase(TransactionBase* aTransaction,
uint64_t aLoggingSerialNumber);
~TransactionDatabaseOperationBase() override;
virtual void RunOnConnectionThread();
// Must be overridden in subclasses. Called on the target thread to allow the
// subclass to perform necessary database or file operations. A successful
// return value will trigger a SendSuccessResult callback on the background
// thread while a failure value will trigger a SendFailureResult callback.
virtual nsresult DoDatabaseWork(DatabaseConnection* aConnection) = 0;
// May be overriden in subclasses. Called on the background thread to decide
// if the subclass needs to send any preprocess info to the child actor.
virtual bool HasPreprocessInfo();
// May be overriden in subclasses. Called on the background thread to allow
// the subclass to serialize its preprocess info and send it to the child
// actor. A successful return value will trigger a wait for a
// NoteContinueReceived callback on the background thread while a failure
// value will trigger a SendFailureResult callback.
virtual nsresult SendPreprocessInfo();
// Must be overridden in subclasses. Called on the background thread to allow
// the subclass to serialize its results and send them to the child actor. A
// failed return value will trigger a SendFailureResult callback.
virtual nsresult SendSuccessResult() = 0;
// Must be overridden in subclasses. Called on the background thread to allow
// the subclass to send its failure code. Returning false will cause the
// transaction to be aborted with aResultCode. Returning true will not cause
// the transaction to be aborted.
virtual bool SendFailureResult(nsresult aResultCode) = 0;
private:
void SendToConnectionPool();
void SendPreprocess();
void SendResults();
void SendPreprocessInfoOrResults(bool aSendPreprocessInfo);
// Not to be overridden by subclasses.
NS_DECL_NSIRUNNABLE
};
class Factory final : public PBackgroundIDBFactoryParent {
RefPtr<DatabaseLoggingInfo> mLoggingInfo;
#ifdef DEBUG
bool mActorDestroyed;
#endif
public:
static already_AddRefed<Factory> Create(const LoggingInfo& aLoggingInfo);
DatabaseLoggingInfo* GetLoggingInfo() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mLoggingInfo);
return mLoggingInfo;
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::indexedDB::Factory)
private:
// Only constructed in Create().
explicit Factory(already_AddRefed<DatabaseLoggingInfo> aLoggingInfo);
// Reference counted.
~Factory() override;
// IPDL methods are only called by IPDL.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvDeleteMe() override;
mozilla::ipc::IPCResult RecvIncrementLoggingRequestSerialNumber() override;
PBackgroundIDBFactoryRequestParent* AllocPBackgroundIDBFactoryRequestParent(
const FactoryRequestParams& aParams) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBFactoryRequestConstructor(
PBackgroundIDBFactoryRequestParent* aActor,
const FactoryRequestParams& aParams) override;
bool DeallocPBackgroundIDBFactoryRequestParent(
PBackgroundIDBFactoryRequestParent* aActor) override;
PBackgroundIDBDatabaseParent* AllocPBackgroundIDBDatabaseParent(
const DatabaseSpec& aSpec,
PBackgroundIDBFactoryRequestParent* aRequest) override;
bool DeallocPBackgroundIDBDatabaseParent(
PBackgroundIDBDatabaseParent* aActor) override;
};
class WaitForTransactionsHelper final : public Runnable {
const nsCString mDatabaseId;
nsCOMPtr<nsIRunnable> mCallback;
enum class State {
Initial = 0,
WaitingForTransactions,
WaitingForFileHandles,
Complete
} mState;
public:
WaitForTransactionsHelper(const nsCString& aDatabaseId,
nsIRunnable* aCallback)
: Runnable("dom::indexedDB::WaitForTransactionsHelper"),
mDatabaseId(aDatabaseId),
mCallback(aCallback),
mState(State::Initial) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!aDatabaseId.IsEmpty());
MOZ_ASSERT(aCallback);
}
void WaitForTransactions();
NS_INLINE_DECL_REFCOUNTING_INHERITED(WaitForTransactionsHelper, Runnable)
private:
~WaitForTransactionsHelper() override {
MOZ_ASSERT(!mCallback);
MOZ_ASSERT(mState == State::Complete);
}
void MaybeWaitForTransactions();
void MaybeWaitForFileHandles();
void CallCallback();
NS_DECL_NSIRUNNABLE
};
class Database final : public PBackgroundIDBDatabaseParent {
friend class VersionChangeTransaction;
class StartTransactionOp;
class UnmapBlobCallback;
private:
RefPtr<Factory> mFactory;
RefPtr<FullDatabaseMetadata> mMetadata;
RefPtr<FileManager> mFileManager;
RefPtr<DirectoryLock> mDirectoryLock;
nsTHashtable<nsPtrHashKey<TransactionBase>> mTransactions;
nsTHashtable<nsPtrHashKey<MutableFile>> mMutableFiles;
nsRefPtrHashtable<nsIDHashKey, FileInfo> mMappedBlobs;
RefPtr<DatabaseConnection> mConnection;
const PrincipalInfo mPrincipalInfo;
const Maybe<ContentParentId> mOptionalContentParentId;
const nsCString mGroup;
const nsCString mOrigin;
const nsCString mId;
const nsString mFilePath;
uint32_t mActiveMutableFileCount;
const uint32_t mTelemetryId;
const PersistenceType mPersistenceType;
const bool mFileHandleDisabled;
const bool mChromeWriteAccessAllowed;
bool mClosed;
bool mInvalidated;
bool mActorWasAlive;
bool mActorDestroyed;
#ifdef DEBUG
bool mAllBlobsUnmapped;
#endif
public:
// Created by OpenDatabaseOp.
Database(Factory* aFactory, const PrincipalInfo& aPrincipalInfo,
const Maybe<ContentParentId>& aOptionalContentParentId,
const nsACString& aGroup, const nsACString& aOrigin,
uint32_t aTelemetryId, FullDatabaseMetadata* aMetadata,
FileManager* aFileManager,
already_AddRefed<DirectoryLock> aDirectoryLock,
bool aFileHandleDisabled, bool aChromeWriteAccessAllowed);
void AssertIsOnConnectionThread() const {
#ifdef DEBUG
if (mConnection) {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
} else {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mInvalidated);
}
#endif
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::indexedDB::Database)
void Invalidate();
bool IsOwnedByProcess(ContentParentId aContentParentId) const {
return mOptionalContentParentId &&
mOptionalContentParentId.value() == aContentParentId;
}
const nsCString& Group() const { return mGroup; }
const nsCString& Origin() const { return mOrigin; }
const nsCString& Id() const { return mId; }
uint32_t TelemetryId() const { return mTelemetryId; }
PersistenceType Type() const { return mPersistenceType; }
const nsString& FilePath() const { return mFilePath; }
FileManager* GetFileManager() const { return mFileManager; }
FullDatabaseMetadata* Metadata() const {
MOZ_ASSERT(mMetadata);
return mMetadata;
}
PBackgroundParent* GetBackgroundParent() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!IsActorDestroyed());
return Manager()->Manager();
}
DatabaseLoggingInfo* GetLoggingInfo() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mFactory);
return mFactory->GetLoggingInfo();
}
bool RegisterTransaction(TransactionBase* aTransaction);
void UnregisterTransaction(TransactionBase* aTransaction);
bool IsFileHandleDisabled() const { return mFileHandleDisabled; }
bool RegisterMutableFile(MutableFile* aMutableFile);
void UnregisterMutableFile(MutableFile* aMutableFile);
void NoteActiveMutableFile();
void NoteInactiveMutableFile();
void SetActorAlive();
void MapBlob(const IPCBlob& aIPCBlob, FileInfo* aFileInfo);
bool IsActorAlive() const {
AssertIsOnBackgroundThread();
return mActorWasAlive && !mActorDestroyed;
}
bool IsActorDestroyed() const {
AssertIsOnBackgroundThread();
return mActorWasAlive && mActorDestroyed;
}
bool IsClosed() const {
AssertIsOnBackgroundThread();
return mClosed;
}
bool IsInvalidated() const {
AssertIsOnBackgroundThread();
return mInvalidated;
}
nsresult EnsureConnection();
DatabaseConnection* GetConnection() const {
#ifdef DEBUG
if (mConnection) {
mConnection->AssertIsOnConnectionThread();
}
#endif
return mConnection;
}
private:
// Reference counted.
~Database() override {
MOZ_ASSERT(mClosed);
MOZ_ASSERT_IF(mActorWasAlive, mActorDestroyed);
}
already_AddRefed<FileInfo> GetBlob(const IPCBlob& aID);
void UnmapBlob(const nsID& aID);
void UnmapAllBlobs();
bool CloseInternal();
void MaybeCloseConnection();
void ConnectionClosedCallback();
void CleanupMetadata();
bool VerifyRequestParams(const DatabaseRequestParams& aParams) const;
// IPDL methods are only called by IPDL.
void ActorDestroy(ActorDestroyReason aWhy) override;
PBackgroundIDBDatabaseFileParent* AllocPBackgroundIDBDatabaseFileParent(
const IPCBlob& aIPCBlob) override;
bool DeallocPBackgroundIDBDatabaseFileParent(
PBackgroundIDBDatabaseFileParent* aActor) override;
PBackgroundIDBDatabaseRequestParent* AllocPBackgroundIDBDatabaseRequestParent(
const DatabaseRequestParams& aParams) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBDatabaseRequestConstructor(
PBackgroundIDBDatabaseRequestParent* aActor,
const DatabaseRequestParams& aParams) override;
bool DeallocPBackgroundIDBDatabaseRequestParent(
PBackgroundIDBDatabaseRequestParent* aActor) override;
PBackgroundIDBTransactionParent* AllocPBackgroundIDBTransactionParent(
const nsTArray<nsString>& aObjectStoreNames, const Mode& aMode) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBTransactionConstructor(
PBackgroundIDBTransactionParent* aActor,
InfallibleTArray<nsString>&& aObjectStoreNames,
const Mode& aMode) override;
bool DeallocPBackgroundIDBTransactionParent(
PBackgroundIDBTransactionParent* aActor) override;
PBackgroundIDBVersionChangeTransactionParent*
AllocPBackgroundIDBVersionChangeTransactionParent(
const uint64_t& aCurrentVersion, const uint64_t& aRequestedVersion,
const int64_t& aNextObjectStoreId, const int64_t& aNextIndexId) override;
bool DeallocPBackgroundIDBVersionChangeTransactionParent(
PBackgroundIDBVersionChangeTransactionParent* aActor) override;
PBackgroundMutableFileParent* AllocPBackgroundMutableFileParent(
const nsString& aName, const nsString& aType) override;
bool DeallocPBackgroundMutableFileParent(
PBackgroundMutableFileParent* aActor) override;
mozilla::ipc::IPCResult RecvDeleteMe() override;
mozilla::ipc::IPCResult RecvBlocked() override;
mozilla::ipc::IPCResult RecvClose() override;
};
class Database::StartTransactionOp final
: public TransactionDatabaseOperationBase {
friend class Database;
private:
explicit StartTransactionOp(TransactionBase* aTransaction)
: TransactionDatabaseOperationBase(aTransaction,
/* aLoggingSerialNumber */ 0) {}
~StartTransactionOp() override = default;
void RunOnConnectionThread() override;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
nsresult SendSuccessResult() override;
bool SendFailureResult(nsresult aResultCode) override;
void Cleanup() override;
};
class Database::UnmapBlobCallback final
: public IPCBlobInputStreamParentCallback {
RefPtr<Database> mDatabase;
public:
explicit UnmapBlobCallback(Database* aDatabase) : mDatabase(aDatabase) {
AssertIsOnBackgroundThread();
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Database::UnmapBlobCallback, override)
void ActorDestroyed(const nsID& aID) override {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mDatabase);
RefPtr<Database> database;
mDatabase.swap(database);
database->UnmapBlob(aID);
}
private:
~UnmapBlobCallback() = default;
};
/**
* In coordination with IDBDatabase's mFileActors weak-map on the child side, a
* long-lived mapping from a child process's live Blobs to their corresponding
* FileInfo in our owning database. Assists in avoiding redundant IPC traffic
* and disk storage. This includes both:
* - Blobs retrieved from this database and sent to the child that do not need
* to be written to disk because they already exist on disk in this database's
* files directory.
* - Blobs retrieved from other databases or from anywhere else that will need
* to be written to this database's files directory. In this case we will
* hold a reference to its BlobImpl in mBlobImpl until we have successfully
* written the Blob to disk.
*
* Relevant Blob context: Blobs sent from the parent process to child processes
* are automatically linked back to their source BlobImpl when the child process
* references the Blob via IPC. This is done using the internal IPCBlob
* inputStream actor ID to FileInfo mapping. However, when getting an actor
* in the child process for sending an in-child-created Blob to the parent
* process, there is (currently) no Blob machinery to automatically establish
* and reuse a long-lived Actor. As a result, without IDB's weak-map
* cleverness, a memory-backed Blob repeatedly sent from the child to the parent
* would appear as a different Blob each time, requiring the Blob data to be
* sent over IPC each time as well as potentially needing to be written to disk
* each time.
*
* This object remains alive as long as there is an active child actor or an
* ObjectStoreAddOrPutRequestOp::StoredFileInfo for a queued or active add/put
* op is holding a reference to us.
*/
class DatabaseFile final : public PBackgroundIDBDatabaseFileParent {
friend class Database;
// mBlobImpl's ownership lifecycle:
// - Initialized on the background thread at creation time. Then
// responsibility is handed off to the connection thread.
// - Checked and used by the connection thread to generate a stream to write
// the blob to disk by an add/put operation.
// - Cleared on the connection thread once the file has successfully been
// written to disk.
RefPtr<BlobImpl> mBlobImpl;
RefPtr<FileInfo> mFileInfo;
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::indexedDB::DatabaseFile);
FileInfo* GetFileInfo() const {
AssertIsOnBackgroundThread();
return mFileInfo;
}
/**
* If mBlobImpl is non-null (implying the contents of this file have not yet
* been written to disk), then return an input stream. Otherwise, if mBlobImpl
* is null (because the contents have been written to disk), returns null.
*/
already_AddRefed<nsIInputStream> GetInputStream(ErrorResult& rv) const;
/**
* To be called upon successful copying of the stream GetInputStream()
* returned so that we won't try and redundantly write the file to disk in the
* future. This is a separate step from GetInputStream() because
* the write could fail due to quota errors that happen now but that might
* not happen in a future attempt.
*/
void WriteSucceededClearBlobImpl() {
MOZ_ASSERT(!IsOnBackgroundThread());
mBlobImpl = nullptr;
}
private:
// Called when sending to the child.
explicit DatabaseFile(FileInfo* aFileInfo) : mFileInfo(aFileInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aFileInfo);
}
// Called when receiving from the child.
DatabaseFile(BlobImpl* aBlobImpl, FileInfo* aFileInfo)
: mBlobImpl(aBlobImpl), mFileInfo(aFileInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aBlobImpl);
MOZ_ASSERT(aFileInfo);
}
~DatabaseFile() override = default;
void ActorDestroy(ActorDestroyReason aWhy) override {
AssertIsOnBackgroundThread();
}
};
already_AddRefed<nsIInputStream> DatabaseFile::GetInputStream(
ErrorResult& rv) const {
// We should only be called from our DB connection thread, not the background
// thread.
MOZ_ASSERT(!IsOnBackgroundThread());
if (!mBlobImpl) {
return nullptr;
}
nsCOMPtr<nsIInputStream> inputStream;
mBlobImpl->CreateInputStream(getter_AddRefs(inputStream), rv);
if (rv.Failed()) {
return nullptr;
}
return inputStream.forget();
}
class TransactionBase {
friend class Cursor;
class CommitOp;
protected:
typedef IDBTransaction::Mode Mode;
private:
RefPtr<Database> mDatabase;
nsTArray<RefPtr<FullObjectStoreMetadata>>
mModifiedAutoIncrementObjectStoreMetadataArray;
uint64_t mTransactionId;
const nsCString mDatabaseId;
const int64_t mLoggingSerialNumber;
uint64_t mActiveRequestCount;
Atomic<bool> mInvalidatedOnAnyThread;
const Mode mMode;
bool mHasBeenActive;
bool mHasBeenActiveOnConnectionThread;
bool mActorDestroyed;
bool mInvalidated;
protected:
nsresult mResultCode;
bool mCommitOrAbortReceived;
bool mCommittedOrAborted;
bool mForceAborted;
public:
void AssertIsOnConnectionThread() const {
MOZ_ASSERT(mDatabase);
mDatabase->AssertIsOnConnectionThread();
}
bool IsActorDestroyed() const {
AssertIsOnBackgroundThread();
return mActorDestroyed;
}
// Must be called on the background thread.
bool IsInvalidated() const {
MOZ_ASSERT(IsOnBackgroundThread(), "Use IsInvalidatedOnAnyThread()");
MOZ_ASSERT_IF(mInvalidated, NS_FAILED(mResultCode));
return mInvalidated;
}
// May be called on any thread, but is more expensive than IsInvalidated().
bool IsInvalidatedOnAnyThread() const { return mInvalidatedOnAnyThread; }
void SetActive(uint64_t aTransactionId) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransactionId);
mTransactionId = aTransactionId;
mHasBeenActive = true;
}
void SetActiveOnConnectionThread() {
AssertIsOnConnectionThread();
mHasBeenActiveOnConnectionThread = true;
}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(
mozilla::dom::indexedDB::TransactionBase)
void Abort(nsresult aResultCode, bool aForce);
uint64_t TransactionId() const { return mTransactionId; }
const nsCString& DatabaseId() const { return mDatabaseId; }
Mode GetMode() const { return mMode; }
Database* GetDatabase() const {
MOZ_ASSERT(mDatabase);
return mDatabase;
}
DatabaseLoggingInfo* GetLoggingInfo() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mDatabase);
return mDatabase->GetLoggingInfo();
}
int64_t LoggingSerialNumber() const { return mLoggingSerialNumber; }
bool IsAborted() const {
AssertIsOnBackgroundThread();
return NS_FAILED(mResultCode);
}
already_AddRefed<FullObjectStoreMetadata> GetMetadataForObjectStoreId(
int64_t aObjectStoreId) const;
already_AddRefed<FullIndexMetadata> GetMetadataForIndexId(
FullObjectStoreMetadata* const aObjectStoreMetadata,
int64_t aIndexId) const;
PBackgroundParent* GetBackgroundParent() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!IsActorDestroyed());
return GetDatabase()->GetBackgroundParent();
}
void NoteModifiedAutoIncrementObjectStore(FullObjectStoreMetadata* aMetadata);
void ForgetModifiedAutoIncrementObjectStore(
FullObjectStoreMetadata* aMetadata);
void NoteActiveRequest();
void NoteFinishedRequest();
void Invalidate();
protected:
TransactionBase(Database* aDatabase, Mode aMode);
virtual ~TransactionBase();
void NoteActorDestroyed() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
mActorDestroyed = true;
}
#ifdef DEBUG
// Only called by VersionChangeTransaction.
void FakeActorDestroyed() { mActorDestroyed = true; }
#endif
bool RecvCommit();
bool RecvAbort(nsresult aResultCode);
void MaybeCommitOrAbort() {
AssertIsOnBackgroundThread();
// If we've already committed or aborted then there's nothing else to do.
if (mCommittedOrAborted) {
return;
}
// If there are active requests then we have to wait for those requests to
// complete (see NoteFinishedRequest).
if (mActiveRequestCount) {
return;
}
// If we haven't yet received a commit or abort message then there could be
// additional requests coming so we should wait unless we're being forced to
// abort.
if (!mCommitOrAbortReceived && !mForceAborted) {
return;
}
CommitOrAbort();
}
PBackgroundIDBRequestParent* AllocRequest(const RequestParams& aParams,
bool aTrustParams);
bool StartRequest(PBackgroundIDBRequestParent* aActor);
bool DeallocRequest(PBackgroundIDBRequestParent* aActor);
PBackgroundIDBCursorParent* AllocCursor(const OpenCursorParams& aParams,
bool aTrustParams);
bool StartCursor(PBackgroundIDBCursorParent* aActor,
const OpenCursorParams& aParams);
bool DeallocCursor(PBackgroundIDBCursorParent* aActor);
virtual void UpdateMetadata(nsresult aResult) {}
virtual void SendCompleteNotification(nsresult aResult) = 0;
private:
bool VerifyRequestParams(const RequestParams& aParams) const;
bool VerifyRequestParams(const SerializedKeyRange& aKeyRange) const;
bool VerifyRequestParams(const ObjectStoreAddPutParams& aParams) const;
bool VerifyRequestParams(const OptionalKeyRange& aKeyRange) const;
void CommitOrAbort();
};
class TransactionBase::CommitOp final : public DatabaseOperationBase,
public ConnectionPool::FinishCallback {
friend class TransactionBase;
RefPtr<TransactionBase> mTransaction;
nsresult mResultCode;
private:
CommitOp(TransactionBase* aTransaction, nsresult aResultCode);
~CommitOp() override = default;
// Writes new autoIncrement counts to database.
nsresult WriteAutoIncrementCounts();
// Updates counts after a database activity has finished.
void CommitOrRollbackAutoIncrementCounts();
void AssertForeignKeyConsistency(DatabaseConnection* aConnection)
#ifdef DEBUG
;
#else
{
}
#endif
NS_DECL_NSIRUNNABLE
void TransactionFinishedBeforeUnblock() override;
void TransactionFinishedAfterUnblock() override;
public:
// We need to declare all of nsISupports, because FinishCallback has
// a pure-virtual nsISupports declaration.
NS_DECL_ISUPPORTS_INHERITED
};
class NormalTransaction final : public TransactionBase,
public PBackgroundIDBTransactionParent {
friend class Database;
nsTArray<RefPtr<FullObjectStoreMetadata>> mObjectStores;
private:
// This constructor is only called by Database.
NormalTransaction(Database* aDatabase, TransactionBase::Mode aMode,
nsTArray<RefPtr<FullObjectStoreMetadata>>& aObjectStores);
// Reference counted.
~NormalTransaction() override = default;
bool IsSameProcessActor();
// Only called by TransactionBase.
void SendCompleteNotification(nsresult aResult) override;
// IPDL methods are only called by IPDL.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvDeleteMe() override;
mozilla::ipc::IPCResult RecvCommit() override;
mozilla::ipc::IPCResult RecvAbort(const nsresult& aResultCode) override;
PBackgroundIDBRequestParent* AllocPBackgroundIDBRequestParent(
const RequestParams& aParams) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBRequestConstructor(
PBackgroundIDBRequestParent* aActor,
const RequestParams& aParams) override;
bool DeallocPBackgroundIDBRequestParent(
PBackgroundIDBRequestParent* aActor) override;
PBackgroundIDBCursorParent* AllocPBackgroundIDBCursorParent(
const OpenCursorParams& aParams) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBCursorConstructor(
PBackgroundIDBCursorParent* aActor,
const OpenCursorParams& aParams) override;
bool DeallocPBackgroundIDBCursorParent(
PBackgroundIDBCursorParent* aActor) override;
};
class VersionChangeTransaction final
: public TransactionBase,
public PBackgroundIDBVersionChangeTransactionParent {
friend class OpenDatabaseOp;
RefPtr<OpenDatabaseOp> mOpenDatabaseOp;
RefPtr<FullDatabaseMetadata> mOldMetadata;
bool mActorWasAlive;
private:
// Only called by OpenDatabaseOp.
explicit VersionChangeTransaction(OpenDatabaseOp* aOpenDatabaseOp);
// Reference counted.
~VersionChangeTransaction() override;
bool IsSameProcessActor();
// Only called by OpenDatabaseOp.
bool CopyDatabaseMetadata();
void SetActorAlive();
// Only called by TransactionBase.
void UpdateMetadata(nsresult aResult) override;
// Only called by TransactionBase.
void SendCompleteNotification(nsresult aResult) override;
// IPDL methods are only called by IPDL.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvDeleteMe() override;
mozilla::ipc::IPCResult RecvCommit() override;
mozilla::ipc::IPCResult RecvAbort(const nsresult& aResultCode) override;
mozilla::ipc::IPCResult RecvCreateObjectStore(
const ObjectStoreMetadata& aMetadata) override;
mozilla::ipc::IPCResult RecvDeleteObjectStore(
const int64_t& aObjectStoreId) override;
mozilla::ipc::IPCResult RecvRenameObjectStore(const int64_t& aObjectStoreId,
const nsString& aName) override;
mozilla::ipc::IPCResult RecvCreateIndex(
const int64_t& aObjectStoreId, const IndexMetadata& aMetadata) override;
mozilla::ipc::IPCResult RecvDeleteIndex(const int64_t& aObjectStoreId,
const int64_t& aIndexId) override;
mozilla::ipc::IPCResult RecvRenameIndex(const int64_t& aObjectStoreId,
const int64_t& aIndexId,
const nsString& aName) override;
PBackgroundIDBRequestParent* AllocPBackgroundIDBRequestParent(
const RequestParams& aParams) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBRequestConstructor(
PBackgroundIDBRequestParent* aActor,
const RequestParams& aParams) override;
bool DeallocPBackgroundIDBRequestParent(
PBackgroundIDBRequestParent* aActor) override;
PBackgroundIDBCursorParent* AllocPBackgroundIDBCursorParent(
const OpenCursorParams& aParams) override;
mozilla::ipc::IPCResult RecvPBackgroundIDBCursorConstructor(
PBackgroundIDBCursorParent* aActor,
const OpenCursorParams& aParams) override;
bool DeallocPBackgroundIDBCursorParent(
PBackgroundIDBCursorParent* aActor) override;
};
class MutableFile : public BackgroundMutableFileParentBase {
RefPtr<Database> mDatabase;
RefPtr<FileInfo> mFileInfo;
public:
static already_AddRefed<MutableFile> Create(nsIFile* aFile,
Database* aDatabase,
FileInfo* aFileInfo);
Database* GetDatabase() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mDatabase);
return mDatabase;
}
FileInfo* GetFileInfo() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mFileInfo);
return mFileInfo;
}
void NoteActiveState() override;
void NoteInactiveState() override;
PBackgroundParent* GetBackgroundParent() const override;
already_AddRefed<nsISupports> CreateStream(bool aReadOnly) override;
already_AddRefed<BlobImpl> CreateBlobImpl() override;
private:
MutableFile(nsIFile* aFile, Database* aDatabase, FileInfo* aFileInfo);
~MutableFile() override;
PBackgroundFileHandleParent* AllocPBackgroundFileHandleParent(
const FileMode& aMode) final;
mozilla::ipc::IPCResult RecvPBackgroundFileHandleConstructor(
PBackgroundFileHandleParent* aActor, const FileMode& aMode) final;
mozilla::ipc::IPCResult RecvGetFileId(int64_t* aFileId) final;
};
class FactoryOp : public DatabaseOperationBase,
public OpenDirectoryListener,
public PBackgroundIDBFactoryRequestParent {
public:
struct MaybeBlockedDatabaseInfo;
protected:
enum class State {
// Just created on the PBackground thread, dispatched to the main thread.
// Next step is either SendingResults if permission is denied,
// PermissionChallenge if the permission is unknown, or FinishOpen
// if permission is granted.
Initial,
// Sending a permission challenge message to the child on the PBackground
// thread. Next step is PermissionRetry.
PermissionChallenge,
// Retrying permission check after a challenge on the main thread. Next step
// is either SendingResults if permission is denied or FinishOpen
// if permission is granted.
PermissionRetry,
// Opening directory or initializing quota manager on the PBackground
// thread. Next step is either DirectoryOpenPending if quota manager is
// already initialized or QuotaManagerPending if quota manager needs to be
// initialized.
FinishOpen,
// Waiting for quota manager initialization to complete on the PBackground
// thread. Next step is either SendingResults if initialization failed or
// DirectoryOpenPending if initialization succeeded.
QuotaManagerPending,
// Waiting for directory open allowed on the PBackground thread. The next
// step is either SendingResults if directory lock failed to acquire, or
// DatabaseOpenPending if directory lock is acquired.
DirectoryOpenPending,
// Waiting for database open allowed on the PBackground thread. The next
// step is DatabaseWorkOpen.
DatabaseOpenPending,
// Waiting to do/doing work on the QuotaManager IO thread. Its next step is
// either BeginVersionChange if the requested version doesn't match the
// existing database version or SendingResults if the versions match.
DatabaseWorkOpen,
// Starting a version change transaction or deleting a database on the
// PBackground thread. We need to notify other databases that a version
// change is about to happen, and maybe tell the request that a version
// change has been blocked. If databases are notified then the next step is
// WaitingForOtherDatabasesToClose. Otherwise the next step is
// WaitingForTransactionsToComplete.
BeginVersionChange,
// Waiting for other databases to close on the PBackground thread. This
// state may persist until all databases are closed. The next state is
// WaitingForTransactionsToComplete.
WaitingForOtherDatabasesToClose,
// Waiting for all transactions that could interfere with this operation to
// complete on the PBackground thread. Next state is
// DatabaseWorkVersionChange.
WaitingForTransactionsToComplete,
// Waiting to do/doing work on the "work thread". This involves waiting for
// the VersionChangeOp (OpenDatabaseOp and DeleteDatabaseOp each have a
// different implementation) to do its work. Eventually the state will
// transition to SendingResults.
DatabaseWorkVersionChange,
// Waiting to send/sending results on the PBackground thread. Next step is
// Completed.
SendingResults,
// All done.
Completed
};
// Must be released on the background thread!
RefPtr<Factory> mFactory;
// Must be released on the main thread!
RefPtr<ContentParent> mContentParent;
// Must be released on the main thread!
RefPtr<DirectoryLock> mDirectoryLock;
RefPtr<FactoryOp> mDelayedOp;
nsTArray<MaybeBlockedDatabaseInfo> mMaybeBlockedDatabases;
const CommonFactoryRequestParams mCommonParams;
nsCString mSuffix;
nsCString mGroup;
nsCString mOrigin;
nsCString mDatabaseId;
nsString mDatabaseFilePath;
State mState;
bool mEnforcingQuota;
const bool mDeleting;
bool mChromeWriteAccessAllowed;
bool mFileHandleDisabled;
public:
void NoteDatabaseBlocked(Database* aDatabase);
virtual void NoteDatabaseClosed(Database* aDatabase) = 0;
#ifdef DEBUG
bool HasBlockedDatabases() const { return !mMaybeBlockedDatabases.IsEmpty(); }
#endif
bool DatabaseFilePathIsKnown() const {
AssertIsOnOwningThread();
return !mDatabaseFilePath.IsEmpty();
}
const nsString& DatabaseFilePath() const {
AssertIsOnOwningThread();
MOZ_ASSERT(!mDatabaseFilePath.IsEmpty());
return mDatabaseFilePath;
}
protected:
FactoryOp(Factory* aFactory, already_AddRefed<ContentParent> aContentParent,
const CommonFactoryRequestParams& aCommonParams, bool aDeleting);
~FactoryOp() override {
// Normally this would be out-of-line since it is a virtual function but
// MSVC 2010 fails to link for some reason if it is not inlined here...
MOZ_ASSERT_IF(OperationMayProceed(),
mState == State::Initial || mState == State::Completed);
}
nsresult Open();
nsresult ChallengePermission();
nsresult RetryCheckPermission();
nsresult DirectoryOpen();
nsresult SendToIOThread();
void WaitForTransactions();
void CleanupMetadata();
void FinishSendResults();
nsresult SendVersionChangeMessages(DatabaseActorInfo* aDatabaseActorInfo,
Database* aOpeningDatabase,
uint64_t aOldVersion,
const NullableVersion& aNewVersion);
// Methods that subclasses must implement.
virtual nsresult DatabaseOpen() = 0;
virtual nsresult DoDatabaseWork() = 0;
virtual nsresult BeginVersionChange() = 0;
virtual nsresult DispatchToWorkThread() = 0;
// Should only be called by Run().
virtual void SendResults() = 0;
// We need to declare refcounting unconditionally, because
// OpenDirectoryListener has pure-virtual refcounting.
NS_DECL_ISUPPORTS_INHERITED
// Common nsIRunnable implementation that subclasses may not override.
NS_IMETHOD
Run() final;
// OpenDirectoryListener overrides.
void DirectoryLockAcquired(DirectoryLock* aLock) override;
void DirectoryLockFailed() override;
// IPDL methods.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvPermissionRetry() final;
virtual void SendBlockedNotification() = 0;
private:
nsresult CheckPermission(ContentParent* aContentParent,
PermissionRequestBase::PermissionValue* aPermission);
static bool CheckAtLeastOneAppHasPermission(
ContentParent* aContentParent, const nsACString& aPermissionString);
nsresult FinishOpen();
nsresult QuotaManagerOpen();
nsresult OpenDirectory();
// Test whether this FactoryOp needs to wait for the given op.
bool MustWaitFor(const FactoryOp& aExistingOp);
};
struct FactoryOp::MaybeBlockedDatabaseInfo final {
RefPtr<Database> mDatabase;
bool mBlocked;
MOZ_IMPLICIT MaybeBlockedDatabaseInfo(Database* aDatabase)
: mDatabase(aDatabase), mBlocked(false) {
MOZ_ASSERT(aDatabase);
MOZ_COUNT_CTOR(FactoryOp::MaybeBlockedDatabaseInfo);
}
~MaybeBlockedDatabaseInfo() {
MOZ_COUNT_DTOR(FactoryOp::MaybeBlockedDatabaseInfo);
}
bool operator==(const MaybeBlockedDatabaseInfo& aOther) const {
return mDatabase == aOther.mDatabase;
}
Database* operator->() MOZ_NO_ADDREF_RELEASE_ON_RETURN { return mDatabase; }
};
class OpenDatabaseOp final : public FactoryOp {
friend class Database;
friend class VersionChangeTransaction;
class VersionChangeOp;
Maybe<ContentParentId> mOptionalContentParentId;
RefPtr<FullDatabaseMetadata> mMetadata;
uint64_t mRequestedVersion;
RefPtr<FileManager> mFileManager;
RefPtr<Database> mDatabase;
RefPtr<VersionChangeTransaction> mVersionChangeTransaction;
// This is only set while a VersionChangeOp is live. It holds a strong
// reference to its OpenDatabaseOp object so this is a weak pointer to avoid
// cycles.
VersionChangeOp* mVersionChangeOp;
uint32_t mTelemetryId;
public:
OpenDatabaseOp(Factory* aFactory,
already_AddRefed<ContentParent> aContentParent,
const CommonFactoryRequestParams& aParams);
private:
~OpenDatabaseOp() override { MOZ_ASSERT(!mVersionChangeOp); }
nsresult LoadDatabaseInformation(mozIStorageConnection* aConnection);
nsresult SendUpgradeNeeded();
void EnsureDatabaseActor();
nsresult EnsureDatabaseActorIsAlive();
void MetadataToSpec(DatabaseSpec& aSpec);
void AssertMetadataConsistency(const FullDatabaseMetadata* aMetadata)
#ifdef DEBUG
;
#else
{
}
#endif
void ConnectionClosedCallback();
void ActorDestroy(ActorDestroyReason aWhy) override;
nsresult DatabaseOpen() override;
nsresult DoDatabaseWork() override;
nsresult BeginVersionChange() override;
void NoteDatabaseClosed(Database* aDatabase) override;
void SendBlockedNotification() override;
nsresult DispatchToWorkThread() override;
void SendResults() override;
static nsresult UpdateLocaleAwareIndex(mozIStorageConnection* aConnection,
const IndexMetadata& aIndexMetadata,
const nsCString& aLocale);
};
class OpenDatabaseOp::VersionChangeOp final
: public TransactionDatabaseOperationBase {
friend class OpenDatabaseOp;
RefPtr<OpenDatabaseOp> mOpenDatabaseOp;
const uint64_t mRequestedVersion;
uint64_t mPreviousVersion;
private:
explicit VersionChangeOp(OpenDatabaseOp* aOpenDatabaseOp)
: TransactionDatabaseOperationBase(
aOpenDatabaseOp->mVersionChangeTransaction,
aOpenDatabaseOp->LoggingSerialNumber()),
mOpenDatabaseOp(aOpenDatabaseOp),
mRequestedVersion(aOpenDatabaseOp->mRequestedVersion),
mPreviousVersion(
aOpenDatabaseOp->mMetadata->mCommonMetadata.version()) {
MOZ_ASSERT(aOpenDatabaseOp);
MOZ_ASSERT(mRequestedVersion);
}
~VersionChangeOp() override { MOZ_ASSERT(!mOpenDatabaseOp); }
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
nsresult SendSuccessResult() override;
bool SendFailureResult(nsresult aResultCode) override;
void Cleanup() override;
};
class DeleteDatabaseOp final : public FactoryOp {
class VersionChangeOp;
nsString mDatabaseDirectoryPath;
nsString mDatabaseFilenameBase;
uint64_t mPreviousVersion;
public:
DeleteDatabaseOp(Factory* aFactory,
already_AddRefed<ContentParent> aContentParent,
const CommonFactoryRequestParams& aParams)
: FactoryOp(aFactory, std::move(aContentParent), aParams,
/* aDeleting */ true),
mPreviousVersion(0) {}
private:
~DeleteDatabaseOp() override = default;
void LoadPreviousVersion(nsIFile* aDatabaseFile);
nsresult DatabaseOpen() override;
nsresult DoDatabaseWork() override;
nsresult BeginVersionChange() override;
void NoteDatabaseClosed(Database* aDatabase) override;
void SendBlockedNotification() override;
nsresult DispatchToWorkThread() override;
void SendResults() override;
};
class DeleteDatabaseOp::VersionChangeOp final : public DatabaseOperationBase {
friend class DeleteDatabaseOp;
RefPtr<DeleteDatabaseOp> mDeleteDatabaseOp;
private:
explicit VersionChangeOp(DeleteDatabaseOp* aDeleteDatabaseOp)
: DatabaseOperationBase(aDeleteDatabaseOp->BackgroundChildLoggingId(),
aDeleteDatabaseOp->LoggingSerialNumber()),
mDeleteDatabaseOp(aDeleteDatabaseOp) {
MOZ_ASSERT(aDeleteDatabaseOp);
MOZ_ASSERT(!aDeleteDatabaseOp->mDatabaseDirectoryPath.IsEmpty());
}
~VersionChangeOp() override = default;
nsresult RunOnIOThread();
void RunOnOwningThread();
NS_DECL_NSIRUNNABLE
};
class DatabaseOp : public DatabaseOperationBase,
public PBackgroundIDBDatabaseRequestParent {
protected:
RefPtr<Database> mDatabase;
enum class State {
// Just created on the PBackground thread, dispatched to the main thread.
// Next step is DatabaseWork.
Initial,
// Waiting to do/doing work on the QuotaManager IO thread. Next step is
// SendingResults.
DatabaseWork,
// Waiting to send/sending results on the PBackground thread. Next step is
// Completed.
SendingResults,
// All done.
Completed
};
State mState;
public:
void RunImmediately() {
MOZ_ASSERT(mState == State::Initial);
Unused << this->Run();
}
protected:
DatabaseOp(Database* aDatabase);
~DatabaseOp() override {
MOZ_ASSERT_IF(OperationMayProceed(),
mState == State::Initial || mState == State::Completed);
}
nsresult SendToIOThread();
// Methods that subclasses must implement.
virtual nsresult DoDatabaseWork() = 0;
virtual void SendResults() = 0;
// Common nsIRunnable implementation that subclasses may not override.
NS_IMETHOD
Run() final;
// IPDL methods.
void ActorDestroy(ActorDestroyReason aWhy) override;
};
class CreateFileOp final : public DatabaseOp {
const CreateFileParams mParams;
RefPtr<FileInfo> mFileInfo;
public:
CreateFileOp(Database* aDatabase, const DatabaseRequestParams& aParams);
private:
~CreateFileOp() override = default;
nsresult CreateMutableFile(MutableFile** aMutableFile);
nsresult DoDatabaseWork() override;
void SendResults() override;
};
class VersionChangeTransactionOp : public TransactionDatabaseOperationBase {
public:
void Cleanup() override;
protected:
explicit VersionChangeTransactionOp(VersionChangeTransaction* aTransaction)
: TransactionDatabaseOperationBase(aTransaction) {}
~VersionChangeTransactionOp() override = default;
private:
nsresult SendSuccessResult() override;
bool SendFailureResult(nsresult aResultCode) override;
};
class CreateObjectStoreOp final : public VersionChangeTransactionOp {
friend class VersionChangeTransaction;
const ObjectStoreMetadata mMetadata;
private:
// Only created by VersionChangeTransaction.
CreateObjectStoreOp(VersionChangeTransaction* aTransaction,
const ObjectStoreMetadata& aMetadata)
: VersionChangeTransactionOp(aTransaction), mMetadata(aMetadata) {
MOZ_ASSERT(aMetadata.id());
}
~CreateObjectStoreOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
};
class DeleteObjectStoreOp final : public VersionChangeTransactionOp {
friend class VersionChangeTransaction;
const RefPtr<FullObjectStoreMetadata> mMetadata;
const bool mIsLastObjectStore;
private:
// Only created by VersionChangeTransaction.
DeleteObjectStoreOp(VersionChangeTransaction* aTransaction,
FullObjectStoreMetadata* const aMetadata,
const bool aIsLastObjectStore)
: VersionChangeTransactionOp(aTransaction),
mMetadata(aMetadata),
mIsLastObjectStore(aIsLastObjectStore) {
MOZ_ASSERT(aMetadata->mCommonMetadata.id());
}
~DeleteObjectStoreOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
};
class RenameObjectStoreOp final : public VersionChangeTransactionOp {
friend class VersionChangeTransaction;
const int64_t mId;
const nsString mNewName;
private:
// Only created by VersionChangeTransaction.
RenameObjectStoreOp(VersionChangeTransaction* aTransaction,
FullObjectStoreMetadata* const aMetadata)
: VersionChangeTransactionOp(aTransaction),
mId(aMetadata->mCommonMetadata.id()),
mNewName(aMetadata->mCommonMetadata.name()) {
MOZ_ASSERT(mId);
}
~RenameObjectStoreOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
};
class CreateIndexOp final : public VersionChangeTransactionOp {
friend class VersionChangeTransaction;
class UpdateIndexDataValuesFunction;
const IndexMetadata mMetadata;
Maybe<UniqueIndexTable> mMaybeUniqueIndexTable;
RefPtr<FileManager> mFileManager;
const nsCString mDatabaseId;
const uint64_t mObjectStoreId;
private:
// Only created by VersionChangeTransaction.
CreateIndexOp(VersionChangeTransaction* aTransaction,
const int64_t aObjectStoreId, const IndexMetadata& aMetadata);
~CreateIndexOp() override = default;
nsresult InsertDataFromObjectStore(DatabaseConnection* aConnection);
nsresult InsertDataFromObjectStoreInternal(DatabaseConnection* aConnection);
bool Init(TransactionBase* aTransaction) override;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
};
class CreateIndexOp::UpdateIndexDataValuesFunction final
: public mozIStorageFunction {
RefPtr<CreateIndexOp> mOp;
RefPtr<DatabaseConnection> mConnection;
public:
UpdateIndexDataValuesFunction(CreateIndexOp* aOp,
DatabaseConnection* aConnection)
: mOp(aOp), mConnection(aConnection) {
MOZ_ASSERT(aOp);
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
}
NS_DECL_ISUPPORTS
private:
~UpdateIndexDataValuesFunction() = default;
NS_DECL_MOZISTORAGEFUNCTION
};
class DeleteIndexOp final : public VersionChangeTransactionOp {
friend class VersionChangeTransaction;
const int64_t mObjectStoreId;
const int64_t mIndexId;
const bool mUnique;
const bool mIsLastIndex;
private:
// Only created by VersionChangeTransaction.
DeleteIndexOp(VersionChangeTransaction* aTransaction,
const int64_t aObjectStoreId, const int64_t aIndexId,
const bool aUnique, const bool aIsLastIndex);
~DeleteIndexOp() override = default;
nsresult RemoveReferencesToIndex(DatabaseConnection* aConnection,
const Key& aObjectDataKey,
nsTArray<IndexDataValue>& aIndexValues);
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
};
class RenameIndexOp final : public VersionChangeTransactionOp {
friend class VersionChangeTransaction;
const int64_t mObjectStoreId;
const int64_t mIndexId;
const nsString mNewName;
private:
// Only created by VersionChangeTransaction.
RenameIndexOp(VersionChangeTransaction* aTransaction,
FullIndexMetadata* const aMetadata, int64_t aObjectStoreId)
: VersionChangeTransactionOp(aTransaction),
mObjectStoreId(aObjectStoreId),
mIndexId(aMetadata->mCommonMetadata.id()),
mNewName(aMetadata->mCommonMetadata.name()) {
MOZ_ASSERT(mIndexId);
}
~RenameIndexOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
};
class NormalTransactionOp : public TransactionDatabaseOperationBase,
public PBackgroundIDBRequestParent {
#ifdef DEBUG
bool mResponseSent;
#endif
public:
void Cleanup() override;
protected:
explicit NormalTransactionOp(TransactionBase* aTransaction)
: TransactionDatabaseOperationBase(aTransaction)
#ifdef DEBUG
,
mResponseSent(false)
#endif
{
}
~NormalTransactionOp() override = default;
// An overload of DatabaseOperationBase's function that can avoid doing extra
// work on non-versionchange transactions.
static nsresult ObjectStoreHasIndexes(NormalTransactionOp* aOp,
DatabaseConnection* aConnection,
const int64_t aObjectStoreId,
const bool aMayHaveIndexes,
bool* aHasIndexes);
virtual nsresult GetPreprocessParams(PreprocessParams& aParams);
// Subclasses use this override to set the IPDL response value.
virtual void GetResponse(RequestResponse& aResponse,
size_t* aResponseSize) = 0;
private:
nsresult SendPreprocessInfo() override;
nsresult SendSuccessResult() override;
bool SendFailureResult(nsresult aResultCode) override;
// IPDL methods.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvContinue(
const PreprocessResponse& aResponse) final;
};
class ObjectStoreAddOrPutRequestOp final : public NormalTransactionOp {
friend class TransactionBase;
typedef mozilla::dom::quota::PersistenceType PersistenceType;
struct StoredFileInfo;
class SCInputStream;
const ObjectStoreAddPutParams mParams;
Maybe<UniqueIndexTable> mUniqueIndexTable;
// This must be non-const so that we can update the mNextAutoIncrementId field
// if we are modifying an autoIncrement objectStore.
RefPtr<FullObjectStoreMetadata> mMetadata;
FallibleTArray<StoredFileInfo> mStoredFileInfos;
Key mResponse;
const nsCString mGroup;
const nsCString mOrigin;
const PersistenceType mPersistenceType;
const bool mOverwrite;
bool mObjectStoreMayHaveIndexes;
bool mDataOverThreshold;
private:
// Only created by TransactionBase.
ObjectStoreAddOrPutRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams);
~ObjectStoreAddOrPutRequestOp() override = default;
nsresult RemoveOldIndexDataValues(DatabaseConnection* aConnection);
bool Init(TransactionBase* aTransaction) override;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override;
void Cleanup() override;
};
struct ObjectStoreAddOrPutRequestOp::StoredFileInfo final {
RefPtr<DatabaseFile> mFileActor;
RefPtr<FileInfo> mFileInfo;
// A non-Blob-backed inputstream to write to disk. If null, mFileActor may
// still have a stream for us to write.
nsCOMPtr<nsIInputStream> mInputStream;
StructuredCloneFile::FileType mType;
StoredFileInfo() : mType(StructuredCloneFile::eBlob) {
AssertIsOnBackgroundThread();
MOZ_COUNT_CTOR(ObjectStoreAddOrPutRequestOp::StoredFileInfo);
}
~StoredFileInfo() {
AssertIsOnBackgroundThread();
MOZ_COUNT_DTOR(ObjectStoreAddOrPutRequestOp::StoredFileInfo);
}
void Serialize(nsString& aText) {
MOZ_ASSERT(mFileInfo);
const int64_t id = mFileInfo->Id();
switch (mType) {
case StructuredCloneFile::eBlob:
aText.AppendInt(id);
break;
case StructuredCloneFile::eMutableFile:
aText.AppendInt(-id);
break;
case StructuredCloneFile::eStructuredClone:
aText.Append('.');
aText.AppendInt(id);
break;
case StructuredCloneFile::eWasmBytecode:
aText.Append('/');
aText.AppendInt(id);
break;
case StructuredCloneFile::eWasmCompiled:
aText.Append('\\');
aText.AppendInt(id);
break;
default:
MOZ_CRASH("Should never get here!");
}
}
};
class ObjectStoreAddOrPutRequestOp::SCInputStream final
: public nsIInputStream {
const JSStructuredCloneData& mData;
JSStructuredCloneData::Iterator mIter;
public:
explicit SCInputStream(const JSStructuredCloneData& aData)
: mData(aData), mIter(aData.Start()) {}
private:
virtual ~SCInputStream() = default;
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINPUTSTREAM
};
class ObjectStoreGetRequestOp final : public NormalTransactionOp {
friend class TransactionBase;
const uint32_t mObjectStoreId;
RefPtr<Database> mDatabase;
const OptionalKeyRange mOptionalKeyRange;
AutoTArray<StructuredCloneReadInfo, 1> mResponse;
PBackgroundParent* mBackgroundParent;
uint32_t mPreprocessInfoCount;
const uint32_t mLimit;
const bool mGetAll;
private:
// Only created by TransactionBase.
ObjectStoreGetRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams, bool aGetAll);
~ObjectStoreGetRequestOp() override = default;
template <bool aForPreprocess, typename T>
nsresult ConvertResponse(StructuredCloneReadInfo& aInfo, T& aResult);
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
bool HasPreprocessInfo() override;
nsresult GetPreprocessParams(PreprocessParams& aParams) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override;
};
class ObjectStoreGetKeyRequestOp final : public NormalTransactionOp {
friend class TransactionBase;
const uint32_t mObjectStoreId;
const OptionalKeyRange mOptionalKeyRange;
const uint32_t mLimit;
const bool mGetAll;
FallibleTArray<Key> mResponse;
private:
// Only created by TransactionBase.
ObjectStoreGetKeyRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams, bool aGetAll);
~ObjectStoreGetKeyRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override;
};
class ObjectStoreDeleteRequestOp final : public NormalTransactionOp {
friend class TransactionBase;
const ObjectStoreDeleteParams mParams;
ObjectStoreDeleteResponse mResponse;
bool mObjectStoreMayHaveIndexes;
private:
ObjectStoreDeleteRequestOp(TransactionBase* aTransaction,
const ObjectStoreDeleteParams& aParams);
~ObjectStoreDeleteRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override {
aResponse = std::move(mResponse);
*aResponseSize = 0;
}
};
class ObjectStoreClearRequestOp final : public NormalTransactionOp {
friend class TransactionBase;
const ObjectStoreClearParams mParams;
ObjectStoreClearResponse mResponse;
bool mObjectStoreMayHaveIndexes;
private:
ObjectStoreClearRequestOp(TransactionBase* aTransaction,
const ObjectStoreClearParams& aParams);
~ObjectStoreClearRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override {
aResponse = std::move(mResponse);
*aResponseSize = 0;
}
};
class ObjectStoreCountRequestOp final : public NormalTransactionOp {
friend class TransactionBase;
const ObjectStoreCountParams mParams;
ObjectStoreCountResponse mResponse;
private:
ObjectStoreCountRequestOp(TransactionBase* aTransaction,
const ObjectStoreCountParams& aParams)
: NormalTransactionOp(aTransaction), mParams(aParams) {}
~ObjectStoreCountRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override {
aResponse = std::move(mResponse);
*aResponseSize = sizeof(uint64_t);
}
};
class IndexRequestOpBase : public NormalTransactionOp {
protected:
const RefPtr<FullIndexMetadata> mMetadata;
protected:
IndexRequestOpBase(TransactionBase* aTransaction,
const RequestParams& aParams)
: NormalTransactionOp(aTransaction),
mMetadata(IndexMetadataForParams(aTransaction, aParams)) {}
~IndexRequestOpBase() override = default;
private:
static already_AddRefed<FullIndexMetadata> IndexMetadataForParams(
TransactionBase* aTransaction, const RequestParams& aParams);
};
class IndexGetRequestOp final : public IndexRequestOpBase {
friend class TransactionBase;
RefPtr<Database> mDatabase;
const OptionalKeyRange mOptionalKeyRange;
AutoTArray<StructuredCloneReadInfo, 1> mResponse;
PBackgroundParent* mBackgroundParent;
const uint32_t mLimit;
const bool mGetAll;
private:
// Only created by TransactionBase.
IndexGetRequestOp(TransactionBase* aTransaction, const RequestParams& aParams,
bool aGetAll);
~IndexGetRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override;
};
class IndexGetKeyRequestOp final : public IndexRequestOpBase {
friend class TransactionBase;
const OptionalKeyRange mOptionalKeyRange;
AutoTArray<Key, 1> mResponse;
const uint32_t mLimit;
const bool mGetAll;
private:
// Only created by TransactionBase.
IndexGetKeyRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams, bool aGetAll);
~IndexGetKeyRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override;
};
class IndexCountRequestOp final : public IndexRequestOpBase {
friend class TransactionBase;
const IndexCountParams mParams;
IndexCountResponse mResponse;
private:
// Only created by TransactionBase.
IndexCountRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams)
: IndexRequestOpBase(aTransaction, aParams),
mParams(aParams.get_IndexCountParams()) {}
~IndexCountRequestOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
void GetResponse(RequestResponse& aResponse, size_t* aResponseSize) override {
aResponse = std::move(mResponse);
*aResponseSize = sizeof(uint64_t);
}
};
class Cursor final : public PBackgroundIDBCursorParent {
friend class TransactionBase;
class ContinueOp;
class CursorOpBase;
class OpenOp;
public:
typedef OpenCursorParams::Type Type;
private:
RefPtr<TransactionBase> mTransaction;
RefPtr<Database> mDatabase;
RefPtr<FileManager> mFileManager;
PBackgroundParent* mBackgroundParent;
// These should only be touched on the PBackground thread to check whether the
// objectStore or index has been deleted. Holding these saves a hash lookup
// for every call to continue()/advance().
RefPtr<FullObjectStoreMetadata> mObjectStoreMetadata;
RefPtr<FullIndexMetadata> mIndexMetadata;
const int64_t mObjectStoreId;
const int64_t mIndexId;
nsCString mContinueQuery;
nsCString mContinueToQuery;
nsCString mContinuePrimaryKeyQuery;
nsCString mLocale;
Key mKey;
Key mObjectKey;
Key mRangeKey;
Key mSortKey;
CursorOpBase* mCurrentlyRunningOp;
const Type mType;
const Direction mDirection;
const bool mUniqueIndex;
const bool mIsSameProcessActor;
bool mActorDestroyed;
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::indexedDB::Cursor)
private:
// Only created by TransactionBase.
Cursor(TransactionBase* aTransaction, Type aType,
FullObjectStoreMetadata* aObjectStoreMetadata,
FullIndexMetadata* aIndexMetadata, Direction aDirection);
// Reference counted.
~Cursor() override { MOZ_ASSERT(mActorDestroyed); }
bool VerifyRequestParams(const CursorRequestParams& aParams) const;
// Only called by TransactionBase.
bool Start(const OpenCursorParams& aParams);
void SendResponseInternal(
CursorResponse& aResponse,
const nsTArray<FallibleTArray<StructuredCloneFile>>& aFiles);
// Must call SendResponseInternal!
bool SendResponse(const CursorResponse& aResponse) = delete;
// IPDL methods.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvDeleteMe() override;
mozilla::ipc::IPCResult RecvContinue(
const CursorRequestParams& aParams) override;
bool IsLocaleAware() const { return !mLocale.IsEmpty(); }
};
class Cursor::CursorOpBase : public TransactionDatabaseOperationBase {
protected:
RefPtr<Cursor> mCursor;
nsTArray<FallibleTArray<StructuredCloneFile>> mFiles;
CursorResponse mResponse;
#ifdef DEBUG
bool mResponseSent;
#endif
protected:
explicit CursorOpBase(Cursor* aCursor)
: TransactionDatabaseOperationBase(aCursor->mTransaction),
mCursor(aCursor)
#ifdef DEBUG
,
mResponseSent(false)
#endif
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(aCursor);
}
~CursorOpBase() override = default;
bool SendFailureResult(nsresult aResultCode) override;
void Cleanup() override;
nsresult PopulateResponseFromStatement(
DatabaseConnection::CachedStatement& aStmt, bool aInitializeResponse);
};
class Cursor::OpenOp final : public Cursor::CursorOpBase {
friend class Cursor;
const OptionalKeyRange mOptionalKeyRange;
private:
// Only created by Cursor.
OpenOp(Cursor* aCursor, const OptionalKeyRange& aOptionalKeyRange)
: CursorOpBase(aCursor), mOptionalKeyRange(aOptionalKeyRange) {}
// Reference counted.
~OpenOp() override = default;
void GetRangeKeyInfo(bool aLowerBound, Key* aKey, bool* aOpen);
nsresult DoObjectStoreDatabaseWork(DatabaseConnection* aConnection);
nsresult DoObjectStoreKeyDatabaseWork(DatabaseConnection* aConnection);
nsresult DoIndexDatabaseWork(DatabaseConnection* aConnection);
nsresult DoIndexKeyDatabaseWork(DatabaseConnection* aConnection);
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
nsresult SendSuccessResult() override;
};
class Cursor::ContinueOp final : public Cursor::CursorOpBase {
friend class Cursor;
const CursorRequestParams mParams;
private:
// Only created by Cursor.
ContinueOp(Cursor* aCursor, const CursorRequestParams& aParams)
: CursorOpBase(aCursor), mParams(aParams) {
MOZ_ASSERT(aParams.type() != CursorRequestParams::T__None);
}
// Reference counted.
~ContinueOp() override = default;
nsresult DoDatabaseWork(DatabaseConnection* aConnection) override;
nsresult SendSuccessResult() override;
};
class Utils final : public PBackgroundIndexedDBUtilsParent {
#ifdef DEBUG
bool mActorDestroyed;
#endif
public:
Utils();
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::indexedDB::Utils)
private:
// Reference counted.
~Utils() override;
// IPDL methods are only called by IPDL.
void ActorDestroy(ActorDestroyReason aWhy) override;
mozilla::ipc::IPCResult RecvDeleteMe() override;
mozilla::ipc::IPCResult RecvGetFileReferences(
const PersistenceType& aPersistenceType, const nsCString& aOrigin,
const nsString& aDatabaseName, const int64_t& aFileId, int32_t* aRefCnt,
int32_t* aDBRefCnt, int32_t* aSliceRefCnt, bool* aResult) override;
};
class GetFileReferencesHelper final : public Runnable {
PersistenceType mPersistenceType;
nsCString mOrigin;
nsString mDatabaseName;
int64_t mFileId;
mozilla::Mutex mMutex;
mozilla::CondVar mCondVar;
int32_t mMemRefCnt;
int32_t mDBRefCnt;
int32_t mSliceRefCnt;
bool mResult;
bool mWaiting;
public:
GetFileReferencesHelper(PersistenceType aPersistenceType,
const nsACString& aOrigin,
const nsAString& aDatabaseName, int64_t aFileId)
: Runnable("dom::indexedDB::GetFileReferencesHelper"),
mPersistenceType(aPersistenceType),
mOrigin(aOrigin),
mDatabaseName(aDatabaseName),
mFileId(aFileId),
mMutex("GetFileReferencesHelper::mMutex"),
mCondVar(mMutex, "GetFileReferencesHelper::mCondVar"),
mMemRefCnt(-1),
mDBRefCnt(-1),
mSliceRefCnt(-1),
mResult(false),
mWaiting(true) {}
nsresult DispatchAndReturnFileReferences(int32_t* aMemRefCnt,
int32_t* aDBRefCnt,
int32_t* aSliceRefCnt,
bool* aResult);
private:
~GetFileReferencesHelper() override = default;
NS_DECL_NSIRUNNABLE
};
class FlushPendingFileDeletionsRunnable final : public Runnable {
public:
FlushPendingFileDeletionsRunnable()
: Runnable("FlushPendingFileDeletionsRunnable") {}
private:
~FlushPendingFileDeletionsRunnable() override = default;
NS_DECL_NSIRUNNABLE
};
class PermissionRequestHelper final : public PermissionRequestBase,
public PIndexedDBPermissionRequestParent {
bool mActorDestroyed;
public:
PermissionRequestHelper(Element* aOwnerElement, nsIPrincipal* aPrincipal)
: PermissionRequestBase(aOwnerElement, aPrincipal),
mActorDestroyed(false) {}
protected:
~PermissionRequestHelper() override = default;
private:
void OnPromptComplete(PermissionValue aPermissionValue) override;
void ActorDestroy(ActorDestroyReason aWhy) override;
};
/*******************************************************************************
* Other class declarations
******************************************************************************/
struct DatabaseActorInfo final {
friend class nsAutoPtr<DatabaseActorInfo>;
RefPtr<FullDatabaseMetadata> mMetadata;
nsTArray<Database*> mLiveDatabases;
RefPtr<FactoryOp> mWaitingFactoryOp;
DatabaseActorInfo(FullDatabaseMetadata* aMetadata, Database* aDatabase)
: mMetadata(aMetadata) {
MOZ_ASSERT(aDatabase);
MOZ_COUNT_CTOR(DatabaseActorInfo);
mLiveDatabases.AppendElement(aDatabase);
}
private:
~DatabaseActorInfo() {
MOZ_ASSERT(mLiveDatabases.IsEmpty());
MOZ_ASSERT(!mWaitingFactoryOp || !mWaitingFactoryOp->HasBlockedDatabases());
MOZ_COUNT_DTOR(DatabaseActorInfo);
}
};
class DatabaseLoggingInfo final {
#ifdef DEBUG
// Just for potential warnings.
friend class Factory;
#endif
LoggingInfo mLoggingInfo;
public:
explicit DatabaseLoggingInfo(const LoggingInfo& aLoggingInfo)
: mLoggingInfo(aLoggingInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aLoggingInfo.nextTransactionSerialNumber());
MOZ_ASSERT(aLoggingInfo.nextVersionChangeTransactionSerialNumber());
MOZ_ASSERT(aLoggingInfo.nextRequestSerialNumber());
}
const nsID& Id() const {
AssertIsOnBackgroundThread();
return mLoggingInfo.backgroundChildLoggingId();
}
int64_t NextTransactionSN(IDBTransaction::Mode aMode) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mLoggingInfo.nextTransactionSerialNumber() < INT64_MAX);
MOZ_ASSERT(mLoggingInfo.nextVersionChangeTransactionSerialNumber() >
INT64_MIN);
if (aMode == IDBTransaction::VERSION_CHANGE) {
return mLoggingInfo.nextVersionChangeTransactionSerialNumber()--;
}
return mLoggingInfo.nextTransactionSerialNumber()++;
}
uint64_t NextRequestSN() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mLoggingInfo.nextRequestSerialNumber() < UINT64_MAX);
return mLoggingInfo.nextRequestSerialNumber()++;
}
NS_INLINE_DECL_REFCOUNTING(DatabaseLoggingInfo)
private:
~DatabaseLoggingInfo();
};
class QuotaClient final : public mozilla::dom::quota::Client {
static QuotaClient* sInstance;
nsCOMPtr<nsIEventTarget> mBackgroundThread;
nsTArray<RefPtr<Maintenance>> mMaintenanceQueue;
RefPtr<Maintenance> mCurrentMaintenance;
RefPtr<nsThreadPool> mMaintenanceThreadPool;
bool mShutdownRequested;
public:
QuotaClient();
static QuotaClient* GetInstance() {
AssertIsOnBackgroundThread();
return sInstance;
}
static bool IsShuttingDownOnBackgroundThread() {
AssertIsOnBackgroundThread();
if (sInstance) {
return sInstance->IsShuttingDown();
}
return QuotaManager::IsShuttingDown();
}
static bool IsShuttingDownOnNonBackgroundThread() {
MOZ_ASSERT(!IsOnBackgroundThread());
return QuotaManager::IsShuttingDown();
}
nsIEventTarget* BackgroundThread() const {
MOZ_ASSERT(mBackgroundThread);
return mBackgroundThread;
}
bool IsShuttingDown() const {
AssertIsOnBackgroundThread();
return mShutdownRequested;
}
already_AddRefed<Maintenance> GetCurrentMaintenance() const {
RefPtr<Maintenance> result = mCurrentMaintenance;
return result.forget();
}
void NoteFinishedMaintenance(Maintenance* aMaintenance) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aMaintenance);
MOZ_ASSERT(mCurrentMaintenance == aMaintenance);
mCurrentMaintenance = nullptr;
ProcessMaintenanceQueue();
}
nsThreadPool* GetOrCreateThreadPool();
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::indexedDB::QuotaClient,
override)
mozilla::dom::quota::Client::Type GetType() override;
nsresult UpgradeStorageFrom1_0To2_0(nsIFile* aDirectory) override;
nsresult InitOrigin(PersistenceType aPersistenceType,
const nsACString& aGroup, const nsACString& aOrigin,
const AtomicBool& aCanceled,
UsageInfo* aUsageInfo) override;
nsresult GetUsageForOrigin(PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
const AtomicBool& aCanceled,
UsageInfo* aUsageInfo) override;
void OnOriginClearCompleted(PersistenceType aPersistenceType,
const nsACString& aOrigin) override;
void ReleaseIOThreadObjects() override;
void AbortOperations(const nsACString& aOrigin) override;
void AbortOperationsForProcess(ContentParentId aContentParentId) override;
void StartIdleMaintenance() override;
void StopIdleMaintenance() override;
void ShutdownWorkThreads() override;
void DidInitialize(QuotaManager* aQuotaManager) override;
void WillShutdown() override;
private:
~QuotaClient() override;
nsresult GetDirectory(PersistenceType aPersistenceType,
const nsACString& aOrigin, nsIFile** aDirectory);
// The aObsoleteFiles will collect files based on the marker files. For now,
// InitOrigin() is the only consumer of this argument because it checks those
// unfinished deletion and clean them up after that.
nsresult GetDatabaseFilenames(
nsIFile* aDirectory, const AtomicBool& aCanceled, bool aForUpgrade,
nsTArray<nsString>& aSubdirsToProcess,
nsTHashtable<nsStringHashKey>& aDatabaseFilename,
nsTHashtable<nsStringHashKey>* aObsoleteFilenames = nullptr);
nsresult GetUsageForDirectoryInternal(nsIFile* aDirectory,
const AtomicBool& aCanceled,
UsageInfo* aUsageInfo,
bool aDatabaseFiles);
// Runs on the PBackground thread. Checks to see if there's a queued
// Maintenance to run.
void ProcessMaintenanceQueue();
};
class Maintenance final : public Runnable, public OpenDirectoryListener {
struct DirectoryInfo;
enum class State {
// Newly created on the PBackground thread. Will proceed immediately or be
// added to the maintenance queue. The next step is either
// DirectoryOpenPending if IndexedDatabaseManager is running, or
// CreateIndexedDatabaseManager if not.
Initial = 0,
// Create IndexedDatabaseManager on the main thread. The next step is either
// Finishing if IndexedDatabaseManager initialization fails, or
// IndexedDatabaseManagerOpen if initialization succeeds.
CreateIndexedDatabaseManager,
// Call OpenDirectory() on the PBackground thread. The next step is
// DirectoryOpenPending.
IndexedDatabaseManagerOpen,
// Waiting for directory open allowed on the PBackground thread. The next
// step is either Finishing if directory lock failed to acquire, or
// DirectoryWorkOpen if directory lock is acquired.
DirectoryOpenPending,
// Waiting to do/doing work on the QuotaManager IO thread. The next step is
// BeginDatabaseMaintenance.
DirectoryWorkOpen,
// Dispatching a runnable for each database on the PBackground thread. The
// next state is either WaitingForDatabaseMaintenancesToComplete if at least
// one runnable has been dispatched, or Finishing otherwise.
BeginDatabaseMaintenance,
// Waiting for DatabaseMaintenance to finish on maintenance thread pool.
// The next state is Finishing if the last runnable has finished.
WaitingForDatabaseMaintenancesToComplete,
// Waiting to finish/finishing on the PBackground thread. The next step is
// Completed.
Finishing,
// All done.
Complete
};
RefPtr<QuotaClient> mQuotaClient;
PRTime mStartTime;
RefPtr<DirectoryLock> mDirectoryLock;
nsTArray<DirectoryInfo> mDirectoryInfos;
nsDataHashtable<nsStringHashKey, DatabaseMaintenance*> mDatabaseMaintenances;
nsresult mResultCode;
Atomic<bool> mAborted;
State mState;
public:
explicit Maintenance(QuotaClient* aQuotaClient)
: Runnable("dom::indexedDB::Maintenance"),
mQuotaClient(aQuotaClient),
mStartTime(PR_Now()),
mResultCode(NS_OK),
mAborted(false),
mState(State::Initial) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aQuotaClient);
MOZ_ASSERT(QuotaClient::GetInstance() == aQuotaClient);
MOZ_ASSERT(mStartTime);
}
nsIEventTarget* BackgroundThread() const {
MOZ_ASSERT(mQuotaClient);
return mQuotaClient->BackgroundThread();
}
PRTime StartTime() const { return mStartTime; }
bool IsAborted() const { return mAborted; }
void RunImmediately() {
MOZ_ASSERT(mState == State::Initial);
Unused << this->Run();
}
void Abort() {
AssertIsOnBackgroundThread();
mAborted = true;
}
void RegisterDatabaseMaintenance(DatabaseMaintenance* aDatabaseMaintenance);
void UnregisterDatabaseMaintenance(DatabaseMaintenance* aDatabaseMaintenance);
already_AddRefed<DatabaseMaintenance> GetDatabaseMaintenance(
const nsAString& aDatabasePath) const {
AssertIsOnBackgroundThread();
RefPtr<DatabaseMaintenance> result =
mDatabaseMaintenances.Get(aDatabasePath);
return result.forget();
}
private:
~Maintenance() override {
MOZ_ASSERT(mState == State::Complete);
MOZ_ASSERT(!mDatabaseMaintenances.Count());
}
// Runs on the PBackground thread. Checks if IndexedDatabaseManager is
// running. Calls OpenDirectory() or dispatches to the main thread on which
// CreateIndexedDatabaseManager() is called.
nsresult Start();
// Runs on the main thread. Once IndexedDatabaseManager is created it will
// dispatch to the PBackground thread on which OpenDirectory() is called.
nsresult CreateIndexedDatabaseManager();
// Runs on the PBackground thread. Once QuotaManager has given a lock it will
// call DirectoryOpen().
nsresult OpenDirectory();
// Runs on the PBackground thread. Dispatches to the QuotaManager I/O thread.
nsresult DirectoryOpen();
// Runs on the QuotaManager I/O thread. Once it finds databases it will
// dispatch to the PBackground thread on which BeginDatabaseMaintenance()
// is called.
nsresult DirectoryWork();
// Runs on the PBackground thread. It dispatches a runnable for each database.
nsresult BeginDatabaseMaintenance();
// Runs on the PBackground thread. Called when the maintenance is finished or
// if any of above methods fails.
void Finish();
// We need to declare refcounting unconditionally, because
// OpenDirectoryListener has pure-virtual refcounting.
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIRUNNABLE
// OpenDirectoryListener overrides.
void DirectoryLockAcquired(DirectoryLock* aLock) override;
void DirectoryLockFailed() override;
};
struct Maintenance::DirectoryInfo final {
const nsCString mGroup;
const nsCString mOrigin;
nsTArray<nsString> mDatabasePaths;
const PersistenceType mPersistenceType;
DirectoryInfo(PersistenceType aPersistenceType, const nsACString& aGroup,
const nsACString& aOrigin, nsTArray<nsString>&& aDatabasePaths)
: mGroup(aGroup),
mOrigin(aOrigin),
mDatabasePaths(std::move(aDatabasePaths)),
mPersistenceType(aPersistenceType) {
MOZ_ASSERT(aPersistenceType != PERSISTENCE_TYPE_INVALID);
MOZ_ASSERT(!aGroup.IsEmpty());
MOZ_ASSERT(!aOrigin.IsEmpty());
#ifdef DEBUG
MOZ_ASSERT(!mDatabasePaths.IsEmpty());
for (const nsString& databasePath : mDatabasePaths) {
MOZ_ASSERT(!databasePath.IsEmpty());
}
#endif
MOZ_COUNT_CTOR(Maintenance::DirectoryInfo);
}
DirectoryInfo(DirectoryInfo&& aOther)
: mGroup(std::move(aOther.mGroup)),
mOrigin(std::move(aOther.mOrigin)),
mDatabasePaths(std::move(aOther.mDatabasePaths)),
mPersistenceType(std::move(aOther.mPersistenceType)) {
#ifdef DEBUG
MOZ_ASSERT(!mDatabasePaths.IsEmpty());
for (const nsString& databasePath : mDatabasePaths) {
MOZ_ASSERT(!databasePath.IsEmpty());
}
#endif
MOZ_COUNT_CTOR(Maintenance::DirectoryInfo);
}
~DirectoryInfo() { MOZ_COUNT_DTOR(Maintenance::DirectoryInfo); }
DirectoryInfo(const DirectoryInfo& aOther) = delete;
};
class DatabaseMaintenance final : public Runnable {
// The minimum amount of time that has passed since the last vacuum before we
// will attempt to analyze the database for fragmentation.
static const PRTime kMinVacuumAge =
PRTime(PR_USEC_PER_SEC) * 60 * 60 * 24 * 7;
// If the percent of database pages that are not in contiguous order is higher
// than this percentage we will attempt a vacuum.
static const int32_t kPercentUnorderedThreshold = 30;
// If the percent of file size growth since the last vacuum is higher than
// this percentage we will attempt a vacuum.
static const int32_t kPercentFileSizeGrowthThreshold = 10;
// The number of freelist pages beyond which we will favor an incremental
// vacuum over a full vacuum.
static const int32_t kMaxFreelistThreshold = 5;
// If the percent of unused file bytes in the database exceeds this percentage
// then we will attempt a full vacuum.
static const int32_t kPercentUnusedThreshold = 20;
class AutoProgressHandler;
enum class MaintenanceAction { Nothing = 0, IncrementalVacuum, FullVacuum };
RefPtr<Maintenance> mMaintenance;
const nsCString mGroup;
const nsCString mOrigin;
const nsString mDatabasePath;
nsCOMPtr<nsIRunnable> mCompleteCallback;
const PersistenceType mPersistenceType;
public:
DatabaseMaintenance(Maintenance* aMaintenance,
PersistenceType aPersistenceType, const nsCString& aGroup,
const nsCString& aOrigin, const nsString& aDatabasePath)
: Runnable("dom::indexedDB::DatabaseMaintenance"),
mMaintenance(aMaintenance),
mGroup(aGroup),
mOrigin(aOrigin),
mDatabasePath(aDatabasePath),
mPersistenceType(aPersistenceType) {}
const nsString& DatabasePath() const { return mDatabasePath; }
void WaitForCompletion(nsIRunnable* aCallback) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mCompleteCallback);
mCompleteCallback = aCallback;
}
private:
~DatabaseMaintenance() override = default;
// Runs on maintenance thread pool. Does maintenance on the database.
void PerformMaintenanceOnDatabase();
// Runs on maintenance thread pool as part of PerformMaintenanceOnDatabase.
nsresult CheckIntegrity(mozIStorageConnection* aConnection, bool* aOk);
// Runs on maintenance thread pool as part of PerformMaintenanceOnDatabase.
nsresult DetermineMaintenanceAction(mozIStorageConnection* aConnection,
nsIFile* aDatabaseFile,
MaintenanceAction* aMaintenanceAction);
// Runs on maintenance thread pool as part of PerformMaintenanceOnDatabase.
void IncrementalVacuum(mozIStorageConnection* aConnection);
// Runs on maintenance thread pool as part of PerformMaintenanceOnDatabase.
void FullVacuum(mozIStorageConnection* aConnection, nsIFile* aDatabaseFile);
// Runs on the PBackground thread. It dispatches a complete callback and
// unregisters from Maintenance.
void RunOnOwningThread();
// Runs on maintenance thread pool. Once it performs database maintenance
// it will dispatch to the PBackground thread on which RunOnOwningThread()
// is called.
void RunOnConnectionThread();
NS_DECL_NSIRUNNABLE
};
class MOZ_STACK_CLASS DatabaseMaintenance::AutoProgressHandler final
: public mozIStorageProgressHandler {
Maintenance* mMaintenance;
mozIStorageConnection* mConnection;
NS_DECL_OWNINGTHREAD
#ifdef DEBUG
// This class is stack-based so we never actually allow AddRef/Release to do
// anything. But we need to know if any consumer *thinks* that they have a
// reference to this object so we track the reference countin DEBUG builds.
nsrefcnt mDEBUGRefCnt;
#endif
public:
explicit AutoProgressHandler(Maintenance* aMaintenance)
: mMaintenance(aMaintenance),
mConnection(nullptr)
#ifdef DEBUG
,
mDEBUGRefCnt(0)
#endif
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
NS_ASSERT_OWNINGTHREAD(DatabaseMaintenance::AutoProgressHandler);
MOZ_ASSERT(aMaintenance);
}
~AutoProgressHandler() {
NS_ASSERT_OWNINGTHREAD(DatabaseMaintenance::AutoProgressHandler);
if (mConnection) {
Unregister();
}
MOZ_ASSERT(!mDEBUGRefCnt);
}
nsresult Register(mozIStorageConnection* aConnection);
// We don't want the mRefCnt member but this class does not "inherit"
// nsISupports.
NS_DECL_ISUPPORTS_INHERITED
private:
void Unregister();
NS_DECL_MOZISTORAGEPROGRESSHANDLER
// Not available for the heap!
void* operator new(size_t) = delete;
void* operator new[](size_t) = delete;
void operator delete(void*) = delete;
void operator delete[](void*) = delete;
};
class IntString : public nsAutoString {
public:
explicit IntString(int64_t aInteger) { AppendInt(aInteger); }
};
#ifdef DEBUG
class DEBUGThreadSlower final : public nsIThreadObserver {
public:
DEBUGThreadSlower() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(kDEBUGThreadSleepMS);
}
NS_DECL_ISUPPORTS
private:
~DEBUGThreadSlower() { AssertIsOnBackgroundThread(); }
NS_DECL_NSITHREADOBSERVER
};
#endif // DEBUG
/*******************************************************************************
* Helper classes
******************************************************************************/
class MOZ_STACK_CLASS FileHelper final {
RefPtr<FileManager> mFileManager;
nsCOMPtr<nsIFile> mFileDirectory;
nsCOMPtr<nsIFile> mJournalDirectory;
class ReadCallback;
RefPtr<ReadCallback> mReadCallback;
public:
explicit FileHelper(FileManager* aFileManager) : mFileManager(aFileManager) {}
nsresult Init();
already_AddRefed<nsIFile> GetFile(FileInfo* aFileInfo);
already_AddRefed<nsIFile> GetJournalFile(FileInfo* aFileInfo);
nsresult CreateFileFromStream(nsIFile* aFile, nsIFile* aJournalFile,
nsIInputStream* aInputStream, bool aCompress);
nsresult RemoveFile(nsIFile* aFile, nsIFile* aJournalFile);
private:
nsresult SyncCopy(nsIInputStream* aInputStream,
nsIOutputStream* aOutputStream, char* aBuffer,
uint32_t aBufferSize);
nsresult SyncRead(nsIInputStream* aInputStream, char* aBuffer,
uint32_t aBufferSize, uint32_t* aRead);
};
/*******************************************************************************
* Helper Functions
******************************************************************************/
bool TokenizerIgnoreNothing(char16_t /* aChar */) { return false; }
nsresult DeserializeStructuredCloneFile(FileManager* aFileManager,
const nsString& aText,
StructuredCloneFile* aFile) {
MOZ_ASSERT(!aText.IsEmpty());
MOZ_ASSERT(aFile);
StructuredCloneFile::FileType type;
switch (aText.First()) {
case char16_t('-'):
type = StructuredCloneFile::eMutableFile;
break;
case char16_t('.'):
type = StructuredCloneFile::eStructuredClone;
break;
case char16_t('/'):
type = StructuredCloneFile::eWasmBytecode;
break;
case char16_t('\\'):
type = StructuredCloneFile::eWasmCompiled;
break;
default:
type = StructuredCloneFile::eBlob;
}
nsresult rv;
int32_t id;
if (type == StructuredCloneFile::eBlob) {
id = aText.ToInteger(&rv);
} else {
nsString text(Substring(aText, 1));
id = text.ToInteger(&rv);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
RefPtr<FileInfo> fileInfo = aFileManager->GetFileInfo(id);
MOZ_ASSERT(fileInfo);
// XXX In bug 1432133, for some reasons FileInfo object cannot be got. This
// is just a short-term fix, and we are working on finding the real cause
// in bug 1519859.
if (!fileInfo) {
IDB_WARNING(
"Corrupt structured clone data detected in IndexedDB. Failing the "
"database request. Bug 1519859 will address this problem.");
Telemetry::ScalarAdd(Telemetry::ScalarID::IDB_FAILURE_FILEINFO_ERROR, 1);
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
aFile->mFileInfo.swap(fileInfo);
aFile->mType = type;
return NS_OK;
}
nsresult DeserializeStructuredCloneFiles(FileManager* aFileManager,
const nsAString& aText,
nsTArray<StructuredCloneFile>& aResult,
bool* aHasPreprocessInfo) {
MOZ_ASSERT(!IsOnBackgroundThread());
nsCharSeparatedTokenizerTemplate<TokenizerIgnoreNothing> tokenizer(aText,
' ');
nsAutoString token;
nsresult rv;
while (tokenizer.hasMoreTokens()) {
token = tokenizer.nextToken();
MOZ_ASSERT(!token.IsEmpty());
StructuredCloneFile* file = aResult.AppendElement();
rv = DeserializeStructuredCloneFile(aFileManager, token, file);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!aHasPreprocessInfo) {
continue;
}
if (file->mType == StructuredCloneFile::eWasmBytecode) {
*aHasPreprocessInfo = true;
} else if (file->mType == StructuredCloneFile::eWasmCompiled) {
MOZ_ASSERT(aResult.Length() > 1);
MOZ_ASSERT(aResult[aResult.Length() - 2].mType ==
StructuredCloneFile::eWasmBytecode);
*aHasPreprocessInfo = true;
}
}
return NS_OK;
}
bool GetBaseFilename(const nsAString& aFilename, const nsAString& aSuffix,
nsDependentSubstring& aBaseFilename) {
MOZ_ASSERT(!aFilename.IsEmpty());
MOZ_ASSERT(aBaseFilename.IsEmpty());
if (!StringEndsWith(aFilename, aSuffix) ||
aFilename.Length() == aSuffix.Length()) {
return false;
}
MOZ_ASSERT(aFilename.Length() > aSuffix.Length());
aBaseFilename.Rebind(aFilename, 0, aFilename.Length() - aSuffix.Length());
return true;
}
nsresult SerializeStructuredCloneFiles(
PBackgroundParent* aBackgroundActor, Database* aDatabase,
const nsTArray<StructuredCloneFile>& aFiles, bool aForPreprocess,
FallibleTArray<SerializedStructuredCloneFile>& aResult) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aBackgroundActor);
MOZ_ASSERT(aDatabase);
MOZ_ASSERT(aResult.IsEmpty());
if (aFiles.IsEmpty()) {
return NS_OK;
}
FileManager* fileManager = aDatabase->GetFileManager();
nsCOMPtr<nsIFile> directory = fileManager->GetCheckedDirectory();
if (NS_WARN_IF(!directory)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
const uint32_t count = aFiles.Length();
if (NS_WARN_IF(!aResult.SetCapacity(count, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
for (uint32_t index = 0; index < count; index++) {
const StructuredCloneFile& file = aFiles[index];
if (aForPreprocess && file.mType != StructuredCloneFile::eWasmBytecode) {
continue;
}
const int64_t fileId = file.mFileInfo->Id();
MOZ_ASSERT(fileId > 0);
nsCOMPtr<nsIFile> nativeFile =
mozilla::dom::indexedDB::FileManager::GetCheckedFileForId(directory,
fileId);
if (NS_WARN_IF(!nativeFile)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
switch (file.mType) {
case StructuredCloneFile::eBlob: {
RefPtr<FileBlobImpl> impl = new FileBlobImpl(nativeFile);
impl->SetFileId(file.mFileInfo->Id());
IPCBlob ipcBlob;
nsresult rv = IPCBlobUtils::Serialize(impl, aBackgroundActor, ipcBlob);
if (NS_WARN_IF(NS_FAILED(rv))) {
// This can only fail if the child has crashed.
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
SerializedStructuredCloneFile* serializedFile =
aResult.AppendElement(fallible);
MOZ_ASSERT(serializedFile);
serializedFile->file() = ipcBlob;
serializedFile->type() = StructuredCloneFile::eBlob;
aDatabase->MapBlob(ipcBlob, file.mFileInfo);
break;
}
case StructuredCloneFile::eMutableFile: {
if (aDatabase->IsFileHandleDisabled()) {
SerializedStructuredCloneFile* file = aResult.AppendElement(fallible);
MOZ_ASSERT(file);
file->file() = null_t();
file->type() = StructuredCloneFile::eMutableFile;
} else {
RefPtr<MutableFile> actor =
MutableFile::Create(nativeFile, aDatabase, file.mFileInfo);
if (!actor) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
// Transfer ownership to IPDL.
actor->SetActorAlive();
if (!aDatabase->SendPBackgroundMutableFileConstructor(
actor, EmptyString(), EmptyString())) {
// This can only fail if the child has crashed.
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
SerializedStructuredCloneFile* file = aResult.AppendElement(fallible);
MOZ_ASSERT(file);
file->file() = actor;
file->type() = StructuredCloneFile::eMutableFile;
}
break;
}
case StructuredCloneFile::eStructuredClone: {
SerializedStructuredCloneFile* file = aResult.AppendElement(fallible);
MOZ_ASSERT(file);
file->file() = null_t();
file->type() = StructuredCloneFile::eStructuredClone;
break;
}
case StructuredCloneFile::eWasmBytecode: {
if (!aForPreprocess) {
SerializedStructuredCloneFile* serializedFile =
aResult.AppendElement(fallible);
MOZ_ASSERT(serializedFile);
serializedFile->file() = null_t();
serializedFile->type() = StructuredCloneFile::eWasmBytecode;
} else {
RefPtr<FileBlobImpl> impl = new FileBlobImpl(nativeFile);
impl->SetFileId(file.mFileInfo->Id());
IPCBlob ipcBlob;
nsresult rv =
IPCBlobUtils::Serialize(impl, aBackgroundActor, ipcBlob);
if (NS_WARN_IF(NS_FAILED(rv))) {
// This can only fail if the child has crashed.
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
SerializedStructuredCloneFile* serializedFile =
aResult.AppendElement(fallible);
MOZ_ASSERT(serializedFile);
serializedFile->file() = ipcBlob;
serializedFile->type() = StructuredCloneFile::eWasmBytecode;
aDatabase->MapBlob(ipcBlob, file.mFileInfo);
}
break;
}
case StructuredCloneFile::eWasmCompiled: {
SerializedStructuredCloneFile* serializedFile =
aResult.AppendElement(fallible);
MOZ_ASSERT(serializedFile);
serializedFile->file() = null_t();
serializedFile->type() = StructuredCloneFile::eWasmCompiled;
break;
}
default:
MOZ_CRASH("Should never get here!");
}
}
return NS_OK;
}
// Idempotently delete a file, decreasing the quota usage as appropriate. If the
// file no longer exists, success is returned, although quota usage can't be
// decreased. (With the assumption being that the file was already deleted prior
// to this logic running, and the non-existent file was no longer tracked by
// quota because it didn't exist at initialization time or a previous deletion
// call updated the usage.)
nsresult DeleteFile(nsIFile* aDirectory, const nsAString& aFilename,
QuotaManager* aQuotaManager,
const PersistenceType aPersistenceType,
const nsACString& aGroup, const nsACString& aOrigin) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(!aFilename.IsEmpty());
nsCOMPtr<nsIFile> file;
nsresult rv = aDirectory->Clone(getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = file->Append(aFilename);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t fileSize;
if (aQuotaManager) {
rv = file->GetFileSize(&fileSize);
if (rv == NS_ERROR_FILE_NOT_FOUND ||
rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST) {
return NS_OK;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(fileSize >= 0);
}
rv = file->Remove(false);
if (rv == NS_ERROR_FILE_NOT_FOUND ||
rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST) {
return NS_OK;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (aQuotaManager && fileSize > 0) {
aQuotaManager->DecreaseUsageForOrigin(aPersistenceType, aGroup, aOrigin,
fileSize);
}
return NS_OK;
}
nsresult DeleteFilesNoQuota(nsIFile* aDirectory, const nsAString& aFilename) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(!aFilename.IsEmpty());
// The current using function hasn't initialzed the origin, so in here we
// don't update the size of origin. Adding this assertion for preventing from
// misusing.
DebugOnly<QuotaManager*> quotaManager = QuotaManager::Get();
MOZ_ASSERT(!quotaManager->IsTemporaryStorageInitialized());
nsCOMPtr<nsIFile> file;
nsresult rv = aDirectory->Clone(getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = file->Append(aFilename);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = file->Remove(true);
if (rv == NS_ERROR_FILE_NOT_FOUND ||
rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST) {
return NS_OK;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// CreateMarkerFile and RemoveMarkerFile are a pair of functions to indicate
// whether having removed all the files successfully. The marker file should
// be checked before executing the next operation or initialization.
nsresult CreateMarkerFile(nsIFile* aBaseDirectory,
const nsAString& aDatabaseNameBase,
nsIFile** aMarkerFileOut) {
AssertIsOnIOThread();
MOZ_ASSERT(aBaseDirectory);
MOZ_ASSERT(!aDatabaseNameBase.IsEmpty());
nsCOMPtr<nsIFile> markerFile;
nsresult rv = aBaseDirectory->Clone(getter_AddRefs(markerFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = markerFile->Append(NS_LITERAL_STRING(IDB_DELETION_MARKER_FILE_PREFIX) +
aDatabaseNameBase);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = markerFile->Create(nsIFile::NORMAL_FILE_TYPE, 0644);
if (rv != NS_ERROR_FILE_ALREADY_EXISTS && NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
markerFile.forget(aMarkerFileOut);
return NS_OK;
}
nsresult RemoveMarkerFile(nsIFile* aMarkerFile) {
AssertIsOnIOThread();
MOZ_ASSERT(aMarkerFile);
DebugOnly<bool> exists;
MOZ_ASSERT(NS_SUCCEEDED(aMarkerFile->Exists(&exists)));
MOZ_ASSERT(exists);
nsresult rv = aMarkerFile->Remove(false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// Idempotently delete all the parts of an IndexedDB database including its
// SQLite database file, its WAL journal, it's shared-memory file, and its
// Blob/Files sub-directory. A marker file is created prior to performing the
// deletion so that in the event we crash or fail to successfully delete the
// database and its files, we will re-attempt the deletion the next time the
// origin is initialized using this method. Because this means the method may be
// called on a partially deleted database, this method uses DeleteFile which
// succeeds when the file we ask it to delete does not actually exist. The
// marker file is removed once deletion has successfully completed.
nsresult RemoveDatabaseFilesAndDirectory(nsIFile* aBaseDirectory,
const nsAString& aFilenameBase,
QuotaManager* aQuotaManager,
const PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
const nsAString& aDatabaseName) {
AssertIsOnIOThread();
MOZ_ASSERT(aBaseDirectory);
MOZ_ASSERT(!aFilenameBase.IsEmpty());
AUTO_PROFILER_LABEL("RemoveDatabaseFilesAndDirectory", DOM);
nsCOMPtr<nsIFile> markerFile;
nsresult rv = CreateMarkerFile(aBaseDirectory, aFilenameBase,
getter_AddRefs(markerFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// The database file counts towards quota.
nsAutoString filename = aFilenameBase + NS_LITERAL_STRING(".sqlite");
rv = DeleteFile(aBaseDirectory, filename, aQuotaManager, aPersistenceType,
aGroup, aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// .sqlite-journal files don't count towards quota.
const NS_ConvertASCIItoUTF16 journalSuffix(
kSQLiteJournalSuffix, LiteralStringLength(kSQLiteJournalSuffix));
filename = aFilenameBase + journalSuffix;
rv = DeleteFile(aBaseDirectory, filename, /* doesn't count */ nullptr,
aPersistenceType, aGroup, aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// .sqlite-shm files don't count towards quota.
const NS_ConvertASCIItoUTF16 shmSuffix(kSQLiteSHMSuffix,
LiteralStringLength(kSQLiteSHMSuffix));
filename = aFilenameBase + shmSuffix;
rv = DeleteFile(aBaseDirectory, filename, /* doesn't count */ nullptr,
aPersistenceType, aGroup, aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// .sqlite-wal files do count towards quota.
const NS_ConvertASCIItoUTF16 walSuffix(kSQLiteWALSuffix,
LiteralStringLength(kSQLiteWALSuffix));
filename = aFilenameBase + walSuffix;
rv = DeleteFile(aBaseDirectory, filename, aQuotaManager, aPersistenceType,
aGroup, aOrigin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFile> fmDirectory;
rv = aBaseDirectory->Clone(getter_AddRefs(fmDirectory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// The files directory counts towards quota.
const NS_ConvertASCIItoUTF16 filesSuffix(
kFileManagerDirectoryNameSuffix,
LiteralStringLength(kFileManagerDirectoryNameSuffix));
rv = fmDirectory->Append(aFilenameBase + filesSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool exists;
rv = fmDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
bool isDirectory;
rv = fmDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
uint64_t usage = 0;
if (aQuotaManager) {
rv = FileManager::GetUsage(fmDirectory, &usage);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = fmDirectory->Remove(true);
if (NS_WARN_IF(NS_FAILED(rv))) {
// We may have deleted some files, check if we can and update quota
// information before returning the error.
if (aQuotaManager) {
uint64_t newUsage;
if (NS_SUCCEEDED(FileManager::GetUsage(fmDirectory, &newUsage))) {
MOZ_ASSERT(newUsage <= usage);
usage = usage - newUsage;
}
}
}
if (aQuotaManager && usage) {
aQuotaManager->DecreaseUsageForOrigin(aPersistenceType, aGroup, aOrigin,
usage);
}
if (NS_FAILED(rv)) {
return rv;
}
}
IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
MOZ_ASSERT_IF(aQuotaManager, mgr);
if (mgr) {
mgr->InvalidateFileManager(aPersistenceType, aOrigin, aDatabaseName);
}
rv = RemoveMarkerFile(markerFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
/*******************************************************************************
* Globals
******************************************************************************/
// Counts the number of "live" Factory, FactoryOp and Database instances.
uint64_t gBusyCount = 0;
typedef nsTArray<RefPtr<FactoryOp>> FactoryOpArray;
StaticAutoPtr<FactoryOpArray> gFactoryOps;
// Maps a database id to information about live database actors.
typedef nsClassHashtable<nsCStringHashKey, DatabaseActorInfo>
DatabaseActorHashtable;
StaticAutoPtr<DatabaseActorHashtable> gLiveDatabaseHashtable;
StaticRefPtr<ConnectionPool> gConnectionPool;
StaticRefPtr<FileHandleThreadPool> gFileHandleThreadPool;
typedef nsDataHashtable<nsIDHashKey, DatabaseLoggingInfo*>
DatabaseLoggingInfoHashtable;
StaticAutoPtr<DatabaseLoggingInfoHashtable> gLoggingInfoHashtable;
typedef nsDataHashtable<nsUint32HashKey, uint32_t> TelemetryIdHashtable;
StaticAutoPtr<TelemetryIdHashtable> gTelemetryIdHashtable;
// Protects all reads and writes to gTelemetryIdHashtable.
StaticAutoPtr<Mutex> gTelemetryIdMutex;
#ifdef DEBUG
StaticRefPtr<DEBUGThreadSlower> gDEBUGThreadSlower;
#endif // DEBUG
void IncreaseBusyCount() {
AssertIsOnBackgroundThread();
// If this is the first instance then we need to do some initialization.
if (!gBusyCount) {
MOZ_ASSERT(!gFactoryOps);
gFactoryOps = new FactoryOpArray();
MOZ_ASSERT(!gLiveDatabaseHashtable);
gLiveDatabaseHashtable = new DatabaseActorHashtable();
MOZ_ASSERT(!gLoggingInfoHashtable);
gLoggingInfoHashtable = new DatabaseLoggingInfoHashtable();
#ifdef DEBUG
if (kDEBUGThreadPriority != nsISupportsPriority::PRIORITY_NORMAL) {
NS_WARNING(
"PBackground thread debugging enabled, priority has been "
"modified!");
nsCOMPtr<nsISupportsPriority> thread =
do_QueryInterface(NS_GetCurrentThread());
MOZ_ASSERT(thread);
MOZ_ALWAYS_SUCCEEDS(thread->SetPriority(kDEBUGThreadPriority));
}
if (kDEBUGThreadSleepMS) {
NS_WARNING(
"PBackground thread debugging enabled, sleeping after every "
"event!");
nsCOMPtr<nsIThreadInternal> thread =
do_QueryInterface(NS_GetCurrentThread());
MOZ_ASSERT(thread);
gDEBUGThreadSlower = new DEBUGThreadSlower();
MOZ_ALWAYS_SUCCEEDS(thread->AddObserver(gDEBUGThreadSlower));
}
#endif // DEBUG
}
gBusyCount++;
}
void DecreaseBusyCount() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(gBusyCount);
// Clean up if there are no more instances.
if (--gBusyCount == 0) {
MOZ_ASSERT(gLoggingInfoHashtable);
gLoggingInfoHashtable = nullptr;
MOZ_ASSERT(gLiveDatabaseHashtable);
MOZ_ASSERT(!gLiveDatabaseHashtable->Count());
gLiveDatabaseHashtable = nullptr;
MOZ_ASSERT(gFactoryOps);
MOZ_ASSERT(gFactoryOps->IsEmpty());
gFactoryOps = nullptr;
#ifdef DEBUG
if (kDEBUGThreadPriority != nsISupportsPriority::PRIORITY_NORMAL) {
nsCOMPtr<nsISupportsPriority> thread =
do_QueryInterface(NS_GetCurrentThread());
MOZ_ASSERT(thread);
MOZ_ALWAYS_SUCCEEDS(
thread->SetPriority(nsISupportsPriority::PRIORITY_NORMAL));
}
if (kDEBUGThreadSleepMS) {
MOZ_ASSERT(gDEBUGThreadSlower);
nsCOMPtr<nsIThreadInternal> thread =
do_QueryInterface(NS_GetCurrentThread());
MOZ_ASSERT(thread);
MOZ_ALWAYS_SUCCEEDS(thread->RemoveObserver(gDEBUGThreadSlower));
gDEBUGThreadSlower = nullptr;
}
#endif // DEBUG
}
}
uint32_t TelemetryIdForFile(nsIFile* aFile) {
// May be called on any thread!
MOZ_ASSERT(aFile);
MOZ_ASSERT(gTelemetryIdMutex);
// The storage directory is structured like this:
//
// <profile>/storage/<persistence>/<origin>/idb/<filename>.sqlite
//
// For the purposes of this function we're only concerned with the
// <persistence>, <origin>, and <filename> pieces.
nsString filename;
MOZ_ALWAYS_SUCCEEDS(aFile->GetLeafName(filename));
// Make sure we were given a database file.
NS_NAMED_LITERAL_STRING(sqliteExtension, ".sqlite");
MOZ_ASSERT(StringEndsWith(filename, sqliteExtension));
filename.Truncate(filename.Length() - sqliteExtension.Length());
// Get the "idb" directory.
nsCOMPtr<nsIFile> idbDirectory;
MOZ_ALWAYS_SUCCEEDS(aFile->GetParent(getter_AddRefs(idbDirectory)));
DebugOnly<nsString> idbLeafName;
MOZ_ASSERT(NS_SUCCEEDED(idbDirectory->GetLeafName(idbLeafName)));
MOZ_ASSERT(static_cast<nsString&>(idbLeafName).EqualsLiteral("idb"));
// Get the <origin> directory.
nsCOMPtr<nsIFile> originDirectory;
MOZ_ALWAYS_SUCCEEDS(idbDirectory->GetParent(getter_AddRefs(originDirectory)));
nsString origin;
MOZ_ALWAYS_SUCCEEDS(originDirectory->GetLeafName(origin));
// Any databases in these directories are owned by the application and should
// not have their filenames masked. Hopefully they also appear in the
// Telemetry.cpp whitelist.
if (origin.EqualsLiteral("chrome") ||
origin.EqualsLiteral("moz-safe-about+home")) {
return 0;
}
// Get the <persistence> directory.
nsCOMPtr<nsIFile> persistenceDirectory;
MOZ_ALWAYS_SUCCEEDS(
originDirectory->GetParent(getter_AddRefs(persistenceDirectory)));
nsString persistence;
MOZ_ALWAYS_SUCCEEDS(persistenceDirectory->GetLeafName(persistence));
NS_NAMED_LITERAL_STRING(separator, "*");
uint32_t hashValue =
HashString(persistence + separator + origin + separator + filename);
MutexAutoLock lock(*gTelemetryIdMutex);
if (!gTelemetryIdHashtable) {
gTelemetryIdHashtable = new TelemetryIdHashtable();
}
uint32_t id;
if (!gTelemetryIdHashtable->Get(hashValue, &id)) {
static uint32_t sNextId = 1;
// We're locked, no need for atomics.
id = sNextId++;
gTelemetryIdHashtable->Put(hashValue, id);
}
return id;
}
} // namespace
/*******************************************************************************
* Exported functions
******************************************************************************/
PBackgroundIDBFactoryParent* AllocPBackgroundIDBFactoryParent(
const LoggingInfo& aLoggingInfo) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread())) {
return nullptr;
}
if (NS_WARN_IF(!aLoggingInfo.nextTransactionSerialNumber()) ||
NS_WARN_IF(!aLoggingInfo.nextVersionChangeTransactionSerialNumber()) ||
NS_WARN_IF(!aLoggingInfo.nextRequestSerialNumber())) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
RefPtr<Factory> actor = Factory::Create(aLoggingInfo);
MOZ_ASSERT(actor);
return actor.forget().take();
}
bool RecvPBackgroundIDBFactoryConstructor(
PBackgroundIDBFactoryParent* aActor,
const LoggingInfo& /* aLoggingInfo */) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(!QuotaClient::IsShuttingDownOnBackgroundThread());
return true;
}
bool DeallocPBackgroundIDBFactoryParent(PBackgroundIDBFactoryParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
RefPtr<Factory> actor = dont_AddRef(static_cast<Factory*>(aActor));
return true;
}
PBackgroundIndexedDBUtilsParent* AllocPBackgroundIndexedDBUtilsParent() {
AssertIsOnBackgroundThread();
RefPtr<Utils> actor = new Utils();
return actor.forget().take();
}
bool DeallocPBackgroundIndexedDBUtilsParent(
PBackgroundIndexedDBUtilsParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
RefPtr<Utils> actor = dont_AddRef(static_cast<Utils*>(aActor));
return true;
}
bool RecvFlushPendingFileDeletions() {
AssertIsOnBackgroundThread();
RefPtr<FlushPendingFileDeletionsRunnable> runnable =
new FlushPendingFileDeletionsRunnable();
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable.forget()));
return true;
}
PIndexedDBPermissionRequestParent* AllocPIndexedDBPermissionRequestParent(
Element* aOwnerElement, nsIPrincipal* aPrincipal) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<PermissionRequestHelper> actor =
new PermissionRequestHelper(aOwnerElement, aPrincipal);
return actor.forget().take();
}
bool RecvPIndexedDBPermissionRequestConstructor(
PIndexedDBPermissionRequestParent* aActor) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aActor);
auto* actor = static_cast<PermissionRequestHelper*>(aActor);
PermissionRequestBase::PermissionValue permission;
nsresult rv = actor->PromptIfNeeded(&permission);
if (NS_FAILED(rv)) {
return false;
}
if (permission != PermissionRequestBase::kPermissionPrompt) {
Unused << PIndexedDBPermissionRequestParent::Send__delete__(actor,
permission);
}
return true;
}
bool DeallocPIndexedDBPermissionRequestParent(
PIndexedDBPermissionRequestParent* aActor) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aActor);
RefPtr<PermissionRequestHelper> actor =
dont_AddRef(static_cast<PermissionRequestHelper*>(aActor));
return true;
}
already_AddRefed<mozilla::dom::quota::Client> CreateQuotaClient() {
AssertIsOnBackgroundThread();
RefPtr<QuotaClient> client = new QuotaClient();
return client.forget();
}
FileHandleThreadPool* GetFileHandleThreadPool() {
AssertIsOnBackgroundThread();
if (!gFileHandleThreadPool) {
RefPtr<FileHandleThreadPool> fileHandleThreadPool =
FileHandleThreadPool::Create();
if (NS_WARN_IF(!fileHandleThreadPool)) {
return nullptr;
}
gFileHandleThreadPool = fileHandleThreadPool;
}
return gFileHandleThreadPool;
}
/*******************************************************************************
* DatabaseConnection implementation
******************************************************************************/
DatabaseConnection::DatabaseConnection(
mozIStorageConnection* aStorageConnection, FileManager* aFileManager)
: mStorageConnection(aStorageConnection),
mFileManager(aFileManager),
mInReadTransaction(false),
mInWriteTransaction(false)
#ifdef DEBUG
,
mDEBUGSavepointCount(0)
#endif
{
AssertIsOnConnectionThread();
MOZ_ASSERT(aStorageConnection);
MOZ_ASSERT(aFileManager);
}
DatabaseConnection::~DatabaseConnection() {
MOZ_ASSERT(!mStorageConnection);
MOZ_ASSERT(!mFileManager);
MOZ_ASSERT(!mCachedStatements.Count());
MOZ_ASSERT(!mUpdateRefcountFunction);
MOZ_ASSERT(!mInWriteTransaction);
MOZ_ASSERT(!mDEBUGSavepointCount);
}
nsresult DatabaseConnection::Init() {
AssertIsOnConnectionThread();
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
CachedStatement stmt;
nsresult rv = GetCachedStatement(NS_LITERAL_CSTRING("BEGIN;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mInReadTransaction = true;
return NS_OK;
}
nsresult DatabaseConnection::GetCachedStatement(
const nsACString& aQuery, CachedStatement* aCachedStatement) {
AssertIsOnConnectionThread();
MOZ_ASSERT(!aQuery.IsEmpty());
MOZ_ASSERT(aCachedStatement);
MOZ_ASSERT(mStorageConnection);
AUTO_PROFILER_LABEL("DatabaseConnection::GetCachedStatement", DOM);
nsCOMPtr<mozIStorageStatement> stmt;
if (!mCachedStatements.Get(aQuery, getter_AddRefs(stmt))) {
nsresult rv =
mStorageConnection->CreateStatement(aQuery, getter_AddRefs(stmt));
if (NS_FAILED(rv)) {
#ifdef DEBUG
nsCString msg;
MOZ_ALWAYS_SUCCEEDS(mStorageConnection->GetLastErrorString(msg));
nsAutoCString error =
NS_LITERAL_CSTRING("The statement '") + aQuery +
NS_LITERAL_CSTRING("' failed to compile with the error message '") +
msg + NS_LITERAL_CSTRING("'.");
NS_WARNING(error.get());
#endif
return rv;
}
mCachedStatements.Put(aQuery, stmt);
}
aCachedStatement->Assign(this, stmt.forget());
return NS_OK;
}
nsresult DatabaseConnection::BeginWriteTransaction() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::BeginWriteTransaction", DOM);
// Release our read locks.
CachedStatement rollbackStmt;
nsresult rv =
GetCachedStatement(NS_LITERAL_CSTRING("ROLLBACK;"), &rollbackStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = rollbackStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mInReadTransaction = false;
if (!mUpdateRefcountFunction) {
MOZ_ASSERT(mFileManager);
RefPtr<UpdateRefcountFunction> function =
new UpdateRefcountFunction(this, mFileManager);
rv = mStorageConnection->CreateFunction(
NS_LITERAL_CSTRING("update_refcount"),
/* aNumArguments */ 2, function);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mUpdateRefcountFunction.swap(function);
}
CachedStatement beginStmt;
rv = GetCachedStatement(NS_LITERAL_CSTRING("BEGIN IMMEDIATE;"), &beginStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = beginStmt->Execute();
if (rv == NS_ERROR_STORAGE_BUSY) {
NS_WARNING(
"Received NS_ERROR_STORAGE_BUSY when attempting to start write "
"transaction, retrying for up to 10 seconds");
// Another thread must be using the database. Wait up to 10 seconds for
// that to complete.
TimeStamp start = TimeStamp::NowLoRes();
while (true) {
PR_Sleep(PR_MillisecondsToInterval(100));
rv = beginStmt->Execute();
if (rv != NS_ERROR_STORAGE_BUSY ||
TimeStamp::NowLoRes() - start > TimeDuration::FromSeconds(10)) {
break;
}
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mInWriteTransaction = true;
return NS_OK;
}
nsresult DatabaseConnection::CommitWriteTransaction() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::CommitWriteTransaction", DOM);
CachedStatement stmt;
nsresult rv = GetCachedStatement(NS_LITERAL_CSTRING("COMMIT;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mInWriteTransaction = false;
return NS_OK;
}
void DatabaseConnection::RollbackWriteTransaction() {
AssertIsOnConnectionThread();
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(mStorageConnection);
AUTO_PROFILER_LABEL("DatabaseConnection::RollbackWriteTransaction", DOM);
if (!mInWriteTransaction) {
return;
}
DatabaseConnection::CachedStatement stmt;
nsresult rv = GetCachedStatement(NS_LITERAL_CSTRING("ROLLBACK;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
// This may fail if SQLite already rolled back the transaction so ignore any
// errors.
Unused << stmt->Execute();
mInWriteTransaction = false;
}
void DatabaseConnection::FinishWriteTransaction() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::FinishWriteTransaction", DOM);
if (mUpdateRefcountFunction) {
mUpdateRefcountFunction->Reset();
}
CachedStatement stmt;
nsresult rv = GetCachedStatement(NS_LITERAL_CSTRING("BEGIN;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
mInReadTransaction = true;
}
nsresult DatabaseConnection::StartSavepoint() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(mUpdateRefcountFunction);
MOZ_ASSERT(mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::StartSavepoint", DOM);
CachedStatement stmt;
nsresult rv = GetCachedStatement(NS_LITERAL_CSTRING(SAVEPOINT_CLAUSE), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mUpdateRefcountFunction->StartSavepoint();
#ifdef DEBUG
MOZ_ASSERT(mDEBUGSavepointCount < UINT32_MAX);
mDEBUGSavepointCount++;
#endif
return NS_OK;
}
nsresult DatabaseConnection::ReleaseSavepoint() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(mUpdateRefcountFunction);
MOZ_ASSERT(mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::ReleaseSavepoint", DOM);
CachedStatement stmt;
nsresult rv = GetCachedStatement(
NS_LITERAL_CSTRING("RELEASE " SAVEPOINT_CLAUSE), &stmt);
if (NS_SUCCEEDED(rv)) {
rv = stmt->Execute();
if (NS_SUCCEEDED(rv)) {
mUpdateRefcountFunction->ReleaseSavepoint();
#ifdef DEBUG
MOZ_ASSERT(mDEBUGSavepointCount);
mDEBUGSavepointCount--;
#endif
}
}
return rv;
}
nsresult DatabaseConnection::RollbackSavepoint() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(mUpdateRefcountFunction);
MOZ_ASSERT(mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::RollbackSavepoint", DOM);
#ifdef DEBUG
MOZ_ASSERT(mDEBUGSavepointCount);
mDEBUGSavepointCount--;
#endif
mUpdateRefcountFunction->RollbackSavepoint();
CachedStatement stmt;
nsresult rv = GetCachedStatement(
NS_LITERAL_CSTRING("ROLLBACK TO " SAVEPOINT_CLAUSE), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// This may fail if SQLite already rolled back the savepoint so ignore any
// errors.
Unused << stmt->Execute();
return NS_OK;
}
nsresult DatabaseConnection::CheckpointInternal(CheckpointMode aMode) {
AssertIsOnConnectionThread();
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::CheckpointInternal", DOM);
nsAutoCString stmtString;
stmtString.AssignLiteral("PRAGMA wal_checkpoint(");
switch (aMode) {
case CheckpointMode::Full:
// Ensures that the database is completely checkpointed and flushed to
// disk.
stmtString.AppendLiteral("FULL");
break;
case CheckpointMode::Restart:
// Like Full, but also ensures that the next write will start overwriting
// the existing WAL file rather than letting the WAL file grow.
stmtString.AppendLiteral("RESTART");
break;
case CheckpointMode::Truncate:
// Like Restart but also truncates the existing WAL file.
stmtString.AppendLiteral("TRUNCATE");
break;
default:
MOZ_CRASH("Unknown CheckpointMode!");
}
stmtString.AppendLiteral(");");
CachedStatement stmt;
nsresult rv = GetCachedStatement(stmtString, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void DatabaseConnection::DoIdleProcessing(bool aNeedsCheckpoint) {
AssertIsOnConnectionThread();
MOZ_ASSERT(mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::DoIdleProcessing", DOM);
DatabaseConnection::CachedStatement freelistStmt;
uint32_t freelistCount;
nsresult rv = GetFreelistCount(freelistStmt, &freelistCount);
if (NS_WARN_IF(NS_FAILED(rv))) {
freelistCount = 0;
}
CachedStatement rollbackStmt;
CachedStatement beginStmt;
if (aNeedsCheckpoint || freelistCount) {
rv = GetCachedStatement(NS_LITERAL_CSTRING("ROLLBACK;"), &rollbackStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
rv = GetCachedStatement(NS_LITERAL_CSTRING("BEGIN;"), &beginStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
// Release the connection's normal transaction. It's possible that it could
// fail, but that isn't a problem here.
Unused << rollbackStmt->Execute();
mInReadTransaction = false;
}
bool freedSomePages = false;
if (freelistCount) {
rv = ReclaimFreePagesWhileIdle(freelistStmt, rollbackStmt, freelistCount,
aNeedsCheckpoint, &freedSomePages);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_ASSERT(!freedSomePages);
}
// Make sure we didn't leave a transaction running.
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
}
// Truncate the WAL if we were asked to or if we managed to free some space.
if (aNeedsCheckpoint || freedSomePages) {
rv = CheckpointInternal(CheckpointMode::Truncate);
Unused << NS_WARN_IF(NS_FAILED(rv));
}
// Finally try to restart the read transaction if we rolled it back earlier.
if (beginStmt) {
rv = beginStmt->Execute();
if (NS_SUCCEEDED(rv)) {
mInReadTransaction = true;
} else {
NS_WARNING("Falied to restart read transaction!");
}
}
}
nsresult DatabaseConnection::ReclaimFreePagesWhileIdle(
CachedStatement& aFreelistStatement, CachedStatement& aRollbackStatement,
uint32_t aFreelistCount, bool aNeedsCheckpoint, bool* aFreedSomePages) {
AssertIsOnConnectionThread();
MOZ_ASSERT(aFreelistStatement);
MOZ_ASSERT(aRollbackStatement);
MOZ_ASSERT(aFreelistCount);
MOZ_ASSERT(aFreedSomePages);
MOZ_ASSERT(!mInReadTransaction);
MOZ_ASSERT(!mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::ReclaimFreePagesWhileIdle", DOM);
// Make sure we don't keep working if anything else needs this thread.
nsIThread* currentThread = NS_GetCurrentThread();
MOZ_ASSERT(currentThread);
if (NS_HasPendingEvents(currentThread)) {
*aFreedSomePages = false;
return NS_OK;
}
// Only try to free 10% at a time so that we can bail out if this connection
// suddenly becomes active or if the thread is needed otherwise.
nsAutoCString stmtString;
stmtString.AssignLiteral("PRAGMA incremental_vacuum(");
stmtString.AppendInt(std::max(uint64_t(1), uint64_t(aFreelistCount / 10)));
stmtString.AppendLiteral(");");
// Make all the statements we'll need up front.
CachedStatement incrementalVacuumStmt;
nsresult rv = GetCachedStatement(stmtString, &incrementalVacuumStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
CachedStatement beginImmediateStmt;
rv = GetCachedStatement(NS_LITERAL_CSTRING("BEGIN IMMEDIATE;"),
&beginImmediateStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
CachedStatement commitStmt;
rv = GetCachedStatement(NS_LITERAL_CSTRING("COMMIT;"), &commitStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (aNeedsCheckpoint) {
// Freeing pages is a journaled operation, so it will require additional WAL
// space. However, we're idle and are about to checkpoint anyway, so doing a
// RESTART checkpoint here should allow us to reuse any existing space.
rv = CheckpointInternal(CheckpointMode::Restart);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Start the write transaction.
rv = beginImmediateStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mInWriteTransaction = true;
bool freedSomePages = false;
while (aFreelistCount) {
if (NS_HasPendingEvents(currentThread)) {
// Something else wants to use the thread so roll back this transaction.
// It's ok if we never make progress here because the idle service should
// eventually reclaim this space.
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
break;
}
rv = incrementalVacuumStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
freedSomePages = true;
rv = GetFreelistCount(aFreelistStatement, &aFreelistCount);
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
}
if (NS_SUCCEEDED(rv) && freedSomePages) {
// Commit the write transaction.
rv = commitStmt->Execute();
if (NS_SUCCEEDED(rv)) {
mInWriteTransaction = false;
} else {
NS_WARNING("Failed to commit!");
}
}
if (NS_FAILED(rv)) {
MOZ_ASSERT(mInWriteTransaction);
// Something failed, make sure we roll everything back.
Unused << aRollbackStatement->Execute();
mInWriteTransaction = false;
return rv;
}
*aFreedSomePages = freedSomePages;
return NS_OK;
}
nsresult DatabaseConnection::GetFreelistCount(CachedStatement& aCachedStatement,
uint32_t* aFreelistCount) {
AssertIsOnConnectionThread();
MOZ_ASSERT(aFreelistCount);
AUTO_PROFILER_LABEL("DatabaseConnection::GetFreelistCount", DOM);
nsresult rv;
if (!aCachedStatement) {
rv = GetCachedStatement(NS_LITERAL_CSTRING("PRAGMA freelist_count;"),
&aCachedStatement);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = aCachedStatement->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
// Make sure this statement is reset when leaving this function since we're
// not using the normal stack-based protection of CachedStatement.
mozStorageStatementScoper scoper(aCachedStatement);
int32_t freelistCount;
rv = aCachedStatement->GetInt32(0, &freelistCount);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(freelistCount >= 0);
*aFreelistCount = uint32_t(freelistCount);
return NS_OK;
}
void DatabaseConnection::Close() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
MOZ_ASSERT(!mDEBUGSavepointCount);
MOZ_ASSERT(!mInWriteTransaction);
AUTO_PROFILER_LABEL("DatabaseConnection::Close", DOM);
if (mUpdateRefcountFunction) {
MOZ_ALWAYS_SUCCEEDS(mStorageConnection->RemoveFunction(
NS_LITERAL_CSTRING("update_refcount")));
mUpdateRefcountFunction = nullptr;
}
mCachedStatements.Clear();
MOZ_ALWAYS_SUCCEEDS(mStorageConnection->Close());
mStorageConnection = nullptr;
mFileManager = nullptr;
}
nsresult DatabaseConnection::DisableQuotaChecks() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStorageConnection);
if (!mQuotaObject) {
MOZ_ASSERT(!mJournalQuotaObject);
nsresult rv = mStorageConnection->GetQuotaObjects(
getter_AddRefs(mQuotaObject), getter_AddRefs(mJournalQuotaObject));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(mQuotaObject);
MOZ_ASSERT(mJournalQuotaObject);
}
mQuotaObject->DisableQuotaCheck();
mJournalQuotaObject->DisableQuotaCheck();
return NS_OK;
}
void DatabaseConnection::EnableQuotaChecks() {
AssertIsOnConnectionThread();
MOZ_ASSERT(mQuotaObject);
MOZ_ASSERT(mJournalQuotaObject);
RefPtr<QuotaObject> quotaObject;
RefPtr<QuotaObject> journalQuotaObject;
mQuotaObject.swap(quotaObject);
mJournalQuotaObject.swap(journalQuotaObject);
quotaObject->EnableQuotaCheck();
journalQuotaObject->EnableQuotaCheck();
int64_t fileSize;
nsresult rv = GetFileSize(quotaObject->Path(), &fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
int64_t journalFileSize;
rv = GetFileSize(journalQuotaObject->Path(), &journalFileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
DebugOnly<bool> result = journalQuotaObject->MaybeUpdateSize(
journalFileSize, /* aTruncate */ true);
MOZ_ASSERT(result);
result = quotaObject->MaybeUpdateSize(fileSize, /* aTruncate */ true);
MOZ_ASSERT(result);
}
nsresult DatabaseConnection::GetFileSize(const nsAString& aPath,
int64_t* aResult) {
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(aResult);
nsCOMPtr<nsIFile> file;
nsresult rv = NS_NewLocalFile(aPath, false, getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t fileSize;
bool exists;
rv = file->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
rv = file->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
fileSize = 0;
}
*aResult = fileSize;
return NS_OK;
}
DatabaseConnection::CachedStatement::CachedStatement()
#ifdef DEBUG
: mDEBUGConnection(nullptr)
#endif
{
AssertIsOnConnectionThread();
MOZ_COUNT_CTOR(DatabaseConnection::CachedStatement);
}
DatabaseConnection::CachedStatement::~CachedStatement() {
AssertIsOnConnectionThread();
MOZ_COUNT_DTOR(DatabaseConnection::CachedStatement);
}
DatabaseConnection::CachedStatement::operator mozIStorageStatement*() const {
AssertIsOnConnectionThread();
return mStatement;
}
mozIStorageStatement* DatabaseConnection::CachedStatement::operator->() const {
AssertIsOnConnectionThread();
MOZ_ASSERT(mStatement);
return mStatement;
}
void DatabaseConnection::CachedStatement::Reset() {
AssertIsOnConnectionThread();
MOZ_ASSERT_IF(mStatement, mScoper);
if (mStatement) {
mScoper.reset();
mScoper.emplace(mStatement);
}
}
void DatabaseConnection::CachedStatement::Assign(
DatabaseConnection* aConnection,
already_AddRefed<mozIStorageStatement> aStatement) {
#ifdef DEBUG
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT_IF(mDEBUGConnection, mDEBUGConnection == aConnection);
mDEBUGConnection = aConnection;
#endif
AssertIsOnConnectionThread();
mScoper.reset();
mStatement = aStatement;
if (mStatement) {
mScoper.emplace(mStatement);
}
}
DatabaseConnection::AutoSavepoint::AutoSavepoint()
: mConnection(nullptr)
#ifdef DEBUG
,
mDEBUGTransaction(nullptr)
#endif
{
MOZ_COUNT_CTOR(DatabaseConnection::AutoSavepoint);
}
DatabaseConnection::AutoSavepoint::~AutoSavepoint() {
MOZ_COUNT_DTOR(DatabaseConnection::AutoSavepoint);
if (mConnection) {
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mDEBUGTransaction);
MOZ_ASSERT(mDEBUGTransaction->GetMode() == IDBTransaction::READ_WRITE ||
mDEBUGTransaction->GetMode() ==
IDBTransaction::READ_WRITE_FLUSH ||
mDEBUGTransaction->GetMode() == IDBTransaction::CLEANUP ||
mDEBUGTransaction->GetMode() == IDBTransaction::VERSION_CHANGE);
if (NS_FAILED(mConnection->RollbackSavepoint())) {
NS_WARNING("Failed to rollback savepoint!");
}
}
}
nsresult DatabaseConnection::AutoSavepoint::Start(
const TransactionBase* aTransaction) {
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(aTransaction->GetMode() == IDBTransaction::READ_WRITE ||
aTransaction->GetMode() == IDBTransaction::READ_WRITE_FLUSH ||
aTransaction->GetMode() == IDBTransaction::CLEANUP ||
aTransaction->GetMode() == IDBTransaction::VERSION_CHANGE);
DatabaseConnection* connection = aTransaction->GetDatabase()->GetConnection();
MOZ_ASSERT(connection);
connection->AssertIsOnConnectionThread();
MOZ_ASSERT(!mConnection);
MOZ_ASSERT(!mDEBUGTransaction);
nsresult rv = connection->StartSavepoint();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mConnection = connection;
#ifdef DEBUG
mDEBUGTransaction = aTransaction;
#endif
return NS_OK;
}
nsresult DatabaseConnection::AutoSavepoint::Commit() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mDEBUGTransaction);
nsresult rv = mConnection->ReleaseSavepoint();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mConnection = nullptr;
#ifdef DEBUG
mDEBUGTransaction = nullptr;
#endif
return NS_OK;
}
DatabaseConnection::UpdateRefcountFunction::UpdateRefcountFunction(
DatabaseConnection* aConnection, FileManager* aFileManager)
: mConnection(aConnection),
mFileManager(aFileManager),
mInSavepoint(false) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(aFileManager);
}
nsresult DatabaseConnection::UpdateRefcountFunction::WillCommit() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("DatabaseConnection::UpdateRefcountFunction::WillCommit",
DOM);
DatabaseUpdateFunction function(this);
for (auto iter = mFileInfoEntries.ConstIter(); !iter.Done(); iter.Next()) {
auto key = iter.Key();
FileInfoEntry* value = iter.Data();
MOZ_ASSERT(value);
if (value->mDelta && !function.Update(key, value->mDelta)) {
break;
}
}
nsresult rv = function.ErrorCode();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = CreateJournals();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void DatabaseConnection::UpdateRefcountFunction::DidCommit() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("DatabaseConnection::UpdateRefcountFunction::DidCommit",
DOM);
for (auto iter = mFileInfoEntries.ConstIter(); !iter.Done(); iter.Next()) {
FileInfoEntry* value = iter.Data();
MOZ_ASSERT(value);
if (value->mDelta) {
value->mFileInfo->UpdateDBRefs(value->mDelta);
}
}
if (NS_FAILED(RemoveJournals(mJournalsToRemoveAfterCommit))) {
NS_WARNING("RemoveJournals failed!");
}
}
void DatabaseConnection::UpdateRefcountFunction::DidAbort() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("DatabaseConnection::UpdateRefcountFunction::DidAbort",
DOM);
if (NS_FAILED(RemoveJournals(mJournalsToRemoveAfterAbort))) {
NS_WARNING("RemoveJournals failed!");
}
}
void DatabaseConnection::UpdateRefcountFunction::StartSavepoint() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(!mInSavepoint);
MOZ_ASSERT(!mSavepointEntriesIndex.Count());
mInSavepoint = true;
}
void DatabaseConnection::UpdateRefcountFunction::ReleaseSavepoint() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mInSavepoint);
mSavepointEntriesIndex.Clear();
mInSavepoint = false;
}
void DatabaseConnection::UpdateRefcountFunction::RollbackSavepoint() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mInSavepoint);
for (auto iter = mSavepointEntriesIndex.ConstIter(); !iter.Done();
iter.Next()) {
auto value = iter.Data();
value->mDelta -= value->mSavepointDelta;
}
mInSavepoint = false;
mSavepointEntriesIndex.Clear();
}
void DatabaseConnection::UpdateRefcountFunction::Reset() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(!mSavepointEntriesIndex.Count());
MOZ_ASSERT(!mInSavepoint);
class MOZ_STACK_CLASS CustomCleanupCallback final
: public FileInfo::CustomCleanupCallback {
nsCOMPtr<nsIFile> mDirectory;
nsCOMPtr<nsIFile> mJournalDirectory;
public:
nsresult Cleanup(FileManager* aFileManager, int64_t aId) override {
if (!mDirectory) {
MOZ_ASSERT(!mJournalDirectory);
mDirectory = aFileManager->GetDirectory();
if (NS_WARN_IF(!mDirectory)) {
return NS_ERROR_FAILURE;
}
mJournalDirectory = aFileManager->GetJournalDirectory();
if (NS_WARN_IF(!mJournalDirectory)) {
return NS_ERROR_FAILURE;
}
}
nsCOMPtr<nsIFile> file = FileManager::GetFileForId(mDirectory, aId);
if (NS_WARN_IF(!file)) {
return NS_ERROR_FAILURE;
}
nsresult rv;
int64_t fileSize;
if (aFileManager->EnforcingQuota()) {
rv = file->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = file->Remove(false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (aFileManager->EnforcingQuota()) {
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
quotaManager->DecreaseUsageForOrigin(aFileManager->Type(),
aFileManager->Group(),
aFileManager->Origin(), fileSize);
}
file = FileManager::GetFileForId(mJournalDirectory, aId);
if (NS_WARN_IF(!file)) {
return NS_ERROR_FAILURE;
}
rv = file->Remove(false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
};
mJournalsToCreateBeforeCommit.Clear();
mJournalsToRemoveAfterCommit.Clear();
mJournalsToRemoveAfterAbort.Clear();
// FileInfo implementation automatically removes unreferenced files, but it's
// done asynchronously and with a delay. We want to remove them (and decrease
// quota usage) before we fire the commit event.
for (auto iter = mFileInfoEntries.ConstIter(); !iter.Done(); iter.Next()) {
FileInfoEntry* value = iter.Data();
MOZ_ASSERT(value);
FileInfo* fileInfo = value->mFileInfo.forget().take();
MOZ_ASSERT(fileInfo);
CustomCleanupCallback customCleanupCallback;
fileInfo->Release(&customCleanupCallback);
}
mFileInfoEntries.Clear();
}
nsresult DatabaseConnection::UpdateRefcountFunction::ProcessValue(
mozIStorageValueArray* aValues, int32_t aIndex, UpdateType aUpdateType) {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(aValues);
AUTO_PROFILER_LABEL(
"DatabaseConnection::UpdateRefcountFunction::ProcessValue", DOM);
int32_t type;
nsresult rv = aValues->GetTypeOfIndex(aIndex, &type);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (type == mozIStorageValueArray::VALUE_TYPE_NULL) {
return NS_OK;
}
nsString ids;
rv = aValues->GetString(aIndex, ids);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsTArray<StructuredCloneFile> files;
rv = DeserializeStructuredCloneFiles(mFileManager, ids, files, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
for (uint32_t i = 0; i < files.Length(); i++) {
const StructuredCloneFile& file = files[i];
const int64_t id = file.mFileInfo->Id();
MOZ_ASSERT(id > 0);
FileInfoEntry* entry;
if (!mFileInfoEntries.Get(id, &entry)) {
entry = new FileInfoEntry(file.mFileInfo);
mFileInfoEntries.Put(id, entry);
}
if (mInSavepoint) {
mSavepointEntriesIndex.Put(id, entry);
}
switch (aUpdateType) {
case UpdateType::Increment:
entry->mDelta++;
if (mInSavepoint) {
entry->mSavepointDelta++;
}
break;
case UpdateType::Decrement:
entry->mDelta--;
if (mInSavepoint) {
entry->mSavepointDelta--;
}
break;
default:
MOZ_CRASH("Unknown update type!");
}
}
return NS_OK;
}
nsresult DatabaseConnection::UpdateRefcountFunction::CreateJournals() {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL(
"DatabaseConnection::UpdateRefcountFunction::CreateJournals", DOM);
nsCOMPtr<nsIFile> journalDirectory = mFileManager->GetJournalDirectory();
if (NS_WARN_IF(!journalDirectory)) {
return NS_ERROR_FAILURE;
}
for (uint32_t i = 0; i < mJournalsToCreateBeforeCommit.Length(); i++) {
int64_t id = mJournalsToCreateBeforeCommit[i];
nsCOMPtr<nsIFile> file = FileManager::GetFileForId(journalDirectory, id);
if (NS_WARN_IF(!file)) {
return NS_ERROR_FAILURE;
}
nsresult rv = file->Create(nsIFile::NORMAL_FILE_TYPE, 0644);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mJournalsToRemoveAfterAbort.AppendElement(id);
}
return NS_OK;
}
nsresult DatabaseConnection::UpdateRefcountFunction::RemoveJournals(
const nsTArray<int64_t>& aJournals) {
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL(
"DatabaseConnection::UpdateRefcountFunction::RemoveJournals", DOM);
nsCOMPtr<nsIFile> journalDirectory = mFileManager->GetJournalDirectory();
if (NS_WARN_IF(!journalDirectory)) {
return NS_ERROR_FAILURE;
}
for (uint32_t index = 0; index < aJournals.Length(); index++) {
nsCOMPtr<nsIFile> file =
FileManager::GetFileForId(journalDirectory, aJournals[index]);
if (NS_WARN_IF(!file)) {
return NS_ERROR_FAILURE;
}
if (NS_FAILED(file->Remove(false))) {
NS_WARNING("Failed to removed journal!");
}
}
return NS_OK;
}
NS_IMPL_ISUPPORTS(DatabaseConnection::UpdateRefcountFunction,
mozIStorageFunction)
NS_IMETHODIMP
DatabaseConnection::UpdateRefcountFunction::OnFunctionCall(
mozIStorageValueArray* aValues, nsIVariant** _retval) {
MOZ_ASSERT(aValues);
MOZ_ASSERT(_retval);
AUTO_PROFILER_LABEL(
"DatabaseConnection::UpdateRefcountFunction::OnFunctionCall", DOM);
uint32_t numEntries;
nsresult rv = aValues->GetNumEntries(&numEntries);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(numEntries == 2);
#ifdef DEBUG
{
int32_t type1 = mozIStorageValueArray::VALUE_TYPE_NULL;
MOZ_ASSERT(NS_SUCCEEDED(aValues->GetTypeOfIndex(0, &type1)));
int32_t type2 = mozIStorageValueArray::VALUE_TYPE_NULL;
MOZ_ASSERT(NS_SUCCEEDED(aValues->GetTypeOfIndex(1, &type2)));
MOZ_ASSERT(!(type1 == mozIStorageValueArray::VALUE_TYPE_NULL &&
type2 == mozIStorageValueArray::VALUE_TYPE_NULL));
}
#endif
rv = ProcessValue(aValues, 0, UpdateType::Decrement);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = ProcessValue(aValues, 1, UpdateType::Increment);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
bool DatabaseConnection::UpdateRefcountFunction::DatabaseUpdateFunction::Update(
int64_t aId, int32_t aDelta) {
nsresult rv = UpdateInternal(aId, aDelta);
if (NS_FAILED(rv)) {
mErrorCode = rv;
return false;
}
return true;
}
nsresult DatabaseConnection::UpdateRefcountFunction::DatabaseUpdateFunction::
UpdateInternal(int64_t aId, int32_t aDelta) {
MOZ_ASSERT(mFunction);
AUTO_PROFILER_LABEL(
"DatabaseConnection::UpdateRefcountFunction::"
"DatabaseUpdateFunction::UpdateInternal",
DOM);
DatabaseConnection* connection = mFunction->mConnection;
MOZ_ASSERT(connection);
connection->AssertIsOnConnectionThread();
MOZ_ASSERT(connection->GetStorageConnection());
nsresult rv;
if (!mUpdateStatement) {
rv = connection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE file "
"SET refcount = refcount + :delta "
"WHERE id = :id"),
&mUpdateStatement);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
mozStorageStatementScoper updateScoper(mUpdateStatement);
rv = mUpdateStatement->BindInt32ByName(NS_LITERAL_CSTRING("delta"), aDelta);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mUpdateStatement->BindInt64ByName(NS_LITERAL_CSTRING("id"), aId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mUpdateStatement->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t rows;
rv = connection->GetStorageConnection()->GetAffectedRows(&rows);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (rows > 0) {
if (!mSelectStatement) {
rv = connection->GetCachedStatement(NS_LITERAL_CSTRING("SELECT id "
"FROM file "
"WHERE id = :id"),
&mSelectStatement);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
mozStorageStatementScoper selectScoper(mSelectStatement);
rv = mSelectStatement->BindInt64ByName(NS_LITERAL_CSTRING("id"), aId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = mSelectStatement->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!hasResult) {
// Don't have to create the journal here, we can create all at once,
// just before commit
mFunction->mJournalsToCreateBeforeCommit.AppendElement(aId);
}
return NS_OK;
}
if (!mInsertStatement) {
rv = connection->GetCachedStatement(
NS_LITERAL_CSTRING("INSERT INTO file (id, refcount) "
"VALUES(:id, :delta)"),
&mInsertStatement);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
mozStorageStatementScoper insertScoper(mInsertStatement);
rv = mInsertStatement->BindInt64ByName(NS_LITERAL_CSTRING("id"), aId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mInsertStatement->BindInt32ByName(NS_LITERAL_CSTRING("delta"), aDelta);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mInsertStatement->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mFunction->mJournalsToRemoveAfterCommit.AppendElement(aId);
return NS_OK;
}
/*******************************************************************************
* ConnectionPool implementation
******************************************************************************/
ConnectionPool::ConnectionPool()
: mDatabasesMutex("ConnectionPool::mDatabasesMutex"),
mIdleTimer(NS_NewTimer()),
mNextTransactionId(0),
mTotalThreadCount(0),
mShutdownRequested(false),
mShutdownComplete(false) {
AssertIsOnOwningThread();
AssertIsOnBackgroundThread();
MOZ_ASSERT(mIdleTimer);
}
ConnectionPool::~ConnectionPool() {
AssertIsOnOwningThread();
MOZ_ASSERT(mIdleThreads.IsEmpty());
MOZ_ASSERT(mIdleDatabases.IsEmpty());
MOZ_ASSERT(!mIdleTimer);
MOZ_ASSERT(mTargetIdleTime.IsNull());
MOZ_ASSERT(!mDatabases.Count());
MOZ_ASSERT(!mTransactions.Count());
MOZ_ASSERT(mQueuedTransactions.IsEmpty());
MOZ_ASSERT(mCompleteCallbacks.IsEmpty());
MOZ_ASSERT(!mTotalThreadCount);
MOZ_ASSERT(mShutdownRequested);
MOZ_ASSERT(mShutdownComplete);
}
// static
void ConnectionPool::IdleTimerCallback(nsITimer* aTimer, void* aClosure) {
MOZ_ASSERT(aTimer);
AUTO_PROFILER_LABEL("ConnectionPool::IdleTimerCallback", DOM);
auto* self = static_cast<ConnectionPool*>(aClosure);
MOZ_ASSERT(self);
MOZ_ASSERT(self->mIdleTimer);
MOZ_ASSERT(SameCOMIdentity(self->mIdleTimer, aTimer));
MOZ_ASSERT(!self->mTargetIdleTime.IsNull());
MOZ_ASSERT_IF(self->mIdleDatabases.IsEmpty(), !self->mIdleThreads.IsEmpty());
MOZ_ASSERT_IF(self->mIdleThreads.IsEmpty(), !self->mIdleDatabases.IsEmpty());
self->mTargetIdleTime = TimeStamp();
// Cheat a little.
TimeStamp now = TimeStamp::NowLoRes() + TimeDuration::FromMilliseconds(500);
uint32_t index = 0;
for (uint32_t count = self->mIdleDatabases.Length(); index < count; index++) {
IdleDatabaseInfo& info = self->mIdleDatabases[index];
if (now >= info.mIdleTime) {
if (info.mDatabaseInfo->mIdle) {
self->PerformIdleDatabaseMaintenance(info.mDatabaseInfo);
} else {
self->CloseDatabase(info.mDatabaseInfo);
}
} else {
break;
}
}
if (index) {
self->mIdleDatabases.RemoveElementsAt(0, index);
index = 0;
}
for (uint32_t count = self->mIdleThreads.Length(); index < count; index++) {
IdleThreadInfo& info = self->mIdleThreads[index];
MOZ_ASSERT(info.mThreadInfo.mThread);
MOZ_ASSERT(info.mThreadInfo.mRunnable);
if (now >= info.mIdleTime) {
self->ShutdownThread(info.mThreadInfo);
} else {
break;
}
}
if (index) {
self->mIdleThreads.RemoveElementsAt(0, index);
}
self->AdjustIdleTimer();
}
nsresult ConnectionPool::GetOrCreateConnection(
const Database* aDatabase, DatabaseConnection** aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aDatabase);
AUTO_PROFILER_LABEL("ConnectionPool::GetOrCreateConnection", DOM);
DatabaseInfo* dbInfo;
{
MutexAutoLock lock(mDatabasesMutex);
dbInfo = mDatabases.Get(aDatabase->Id());
}
MOZ_ASSERT(dbInfo);
RefPtr<DatabaseConnection> connection = dbInfo->mConnection;
if (!connection) {
MOZ_ASSERT(!dbInfo->mDEBUGConnectionThread);
nsCOMPtr<mozIStorageConnection> storageConnection;
nsresult rv = GetStorageConnection(aDatabase->FilePath(), aDatabase->Type(),
aDatabase->Group(), aDatabase->Origin(),
aDatabase->TelemetryId(),
getter_AddRefs(storageConnection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
connection =
new DatabaseConnection(storageConnection, aDatabase->GetFileManager());
rv = connection->Init();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
dbInfo->mConnection = connection;
IDB_DEBUG_LOG(("ConnectionPool created connection 0x%p for '%s'",
dbInfo->mConnection.get(),
NS_ConvertUTF16toUTF8(aDatabase->FilePath()).get()));
#ifdef DEBUG
dbInfo->mDEBUGConnectionThread = GetCurrentPhysicalThread();
#endif
}
dbInfo->AssertIsOnConnectionThread();
connection.forget(aConnection);
return NS_OK;
}
uint64_t ConnectionPool::Start(
const nsID& aBackgroundChildLoggingId, const nsACString& aDatabaseId,
int64_t aLoggingSerialNumber, const nsTArray<nsString>& aObjectStoreNames,
bool aIsWriteTransaction,
TransactionDatabaseOperationBase* aTransactionOp) {
AssertIsOnOwningThread();
MOZ_ASSERT(!aDatabaseId.IsEmpty());
MOZ_ASSERT(mNextTransactionId < UINT64_MAX);
MOZ_ASSERT(!mShutdownRequested);
AUTO_PROFILER_LABEL("ConnectionPool::Start", DOM);
const uint64_t transactionId = ++mNextTransactionId;
DatabaseInfo* dbInfo = mDatabases.Get(aDatabaseId);
const bool databaseInfoIsNew = !dbInfo;
if (databaseInfoIsNew) {
dbInfo = new DatabaseInfo(this, aDatabaseId);
MutexAutoLock lock(mDatabasesMutex);
mDatabases.Put(aDatabaseId, dbInfo);
}
auto* transactionInfo = new TransactionInfo(
dbInfo, aBackgroundChildLoggingId, aDatabaseId, transactionId,
aLoggingSerialNumber, aObjectStoreNames, aIsWriteTransaction,
aTransactionOp);
MOZ_ASSERT(!mTransactions.Get(transactionId));
mTransactions.Put(transactionId, transactionInfo);
if (aIsWriteTransaction) {
MOZ_ASSERT(dbInfo->mWriteTransactionCount < UINT32_MAX);
dbInfo->mWriteTransactionCount++;
} else {
MOZ_ASSERT(dbInfo->mReadTransactionCount < UINT32_MAX);
dbInfo->mReadTransactionCount++;
}
auto& blockingTransactions = dbInfo->mBlockingTransactions;
for (uint32_t nameIndex = 0, nameCount = aObjectStoreNames.Length();
nameIndex < nameCount; nameIndex++) {
const nsString& objectStoreName = aObjectStoreNames[nameIndex];
TransactionInfoPair* blockInfo = blockingTransactions.Get(objectStoreName);
if (!blockInfo) {
blockInfo = new TransactionInfoPair();
blockingTransactions.Put(objectStoreName, blockInfo);
}
// Mark what we are blocking on.
if (TransactionInfo* blockingRead = blockInfo->mLastBlockingReads) {
transactionInfo->mBlockedOn.PutEntry(blockingRead);
blockingRead->AddBlockingTransaction(transactionInfo);
}
if (aIsWriteTransaction) {
if (const uint32_t writeCount = blockInfo->mLastBlockingWrites.Length()) {
for (uint32_t writeIndex = 0; writeIndex < writeCount; writeIndex++) {
TransactionInfo* blockingWrite =
blockInfo->mLastBlockingWrites[writeIndex];
MOZ_ASSERT(blockingWrite);
transactionInfo->mBlockedOn.PutEntry(blockingWrite);
blockingWrite->AddBlockingTransaction(transactionInfo);
}
}
blockInfo->mLastBlockingReads = transactionInfo;
blockInfo->mLastBlockingWrites.Clear();
} else {
blockInfo->mLastBlockingWrites.AppendElement(transactionInfo);
}
}
if (!transactionInfo->mBlockedOn.Count()) {
Unused << ScheduleTransaction(transactionInfo,
/* aFromQueuedTransactions */ false);
}
if (!databaseInfoIsNew &&
(mIdleDatabases.RemoveElement(dbInfo) ||
mDatabasesPerformingIdleMaintenance.RemoveElement(dbInfo))) {
AdjustIdleTimer();
}
return transactionId;
}
void ConnectionPool::Dispatch(uint64_t aTransactionId, nsIRunnable* aRunnable) {
AssertIsOnOwningThread();
MOZ_ASSERT(aRunnable);
AUTO_PROFILER_LABEL("ConnectionPool::Dispatch", DOM);
TransactionInfo* transactionInfo = mTransactions.Get(aTransactionId);
MOZ_ASSERT(transactionInfo);
MOZ_ASSERT(!transactionInfo->mFinished);
if (transactionInfo->mRunning) {
DatabaseInfo* dbInfo = transactionInfo->mDatabaseInfo;
MOZ_ASSERT(dbInfo);
MOZ_ASSERT(dbInfo->mThreadInfo.mThread);
MOZ_ASSERT(dbInfo->mThreadInfo.mRunnable);
MOZ_ASSERT(!dbInfo->mClosing);
MOZ_ASSERT_IF(transactionInfo->mIsWriteTransaction,
dbInfo->mRunningWriteTransaction == transactionInfo);
MOZ_ALWAYS_SUCCEEDS(
dbInfo->mThreadInfo.mThread->Dispatch(aRunnable, NS_DISPATCH_NORMAL));
} else {
transactionInfo->mQueuedRunnables.AppendElement(aRunnable);
}
}
void ConnectionPool::Finish(uint64_t aTransactionId,
FinishCallback* aCallback) {
AssertIsOnOwningThread();
#ifdef DEBUG
TransactionInfo* transactionInfo = mTransactions.Get(aTransactionId);
MOZ_ASSERT(transactionInfo);
MOZ_ASSERT(!transactionInfo->mFinished);
#endif
AUTO_PROFILER_LABEL("ConnectionPool::Finish", DOM);
RefPtr<FinishCallbackWrapper> wrapper =
new FinishCallbackWrapper(this, aTransactionId, aCallback);
Dispatch(aTransactionId, wrapper);
#ifdef DEBUG
MOZ_ASSERT(!transactionInfo->mFinished);
transactionInfo->mFinished = true;
#endif
}
void ConnectionPool::WaitForDatabasesToComplete(
nsTArray<nsCString>&& aDatabaseIds, nsIRunnable* aCallback) {
AssertIsOnOwningThread();
MOZ_ASSERT(!aDatabaseIds.IsEmpty());
MOZ_ASSERT(aCallback);
AUTO_PROFILER_LABEL("ConnectionPool::WaitForDatabasesToComplete", DOM);
bool mayRunCallbackImmediately = true;
for (uint32_t index = 0, count = aDatabaseIds.Length(); index < count;
index++) {
const nsCString& databaseId = aDatabaseIds[index];
MOZ_ASSERT(!databaseId.IsEmpty());
if (CloseDatabaseWhenIdleInternal(databaseId)) {
mayRunCallbackImmediately = false;
}
}
if (mayRunCallbackImmediately) {
Unused << aCallback->Run();
return;
}
nsAutoPtr<DatabasesCompleteCallback> callback(
new DatabasesCompleteCallback(std::move(aDatabaseIds), aCallback));
mCompleteCallbacks.AppendElement(callback.forget());
}
void ConnectionPool::Shutdown() {
AssertIsOnOwningThread();
MOZ_ASSERT(!mShutdownRequested);
MOZ_ASSERT(!mShutdownComplete);
AUTO_PROFILER_LABEL("ConnectionPool::Shutdown", DOM);
mShutdownRequested = true;
CancelIdleTimer();
MOZ_ASSERT(mTargetIdleTime.IsNull());
mIdleTimer = nullptr;
CloseIdleDatabases();
ShutdownIdleThreads();
if (!mDatabases.Count()) {
MOZ_ASSERT(!mTransactions.Count());
Cleanup();
MOZ_ASSERT(mShutdownComplete);
return;
}
MOZ_ALWAYS_TRUE(SpinEventLoopUntil([&]() { return mShutdownComplete; }));
}
void ConnectionPool::Cleanup() {
AssertIsOnOwningThread();
MOZ_ASSERT(mShutdownRequested);
MOZ_ASSERT(!mShutdownComplete);
MOZ_ASSERT(!mDatabases.Count());
MOZ_ASSERT(!mTransactions.Count());
MOZ_ASSERT(mIdleThreads.IsEmpty());
AUTO_PROFILER_LABEL("ConnectionPool::Cleanup", DOM);
if (!mCompleteCallbacks.IsEmpty()) {
// Run all callbacks manually now.
for (uint32_t count = mCompleteCallbacks.Length(), index = 0; index < count;
index++) {
nsAutoPtr<DatabasesCompleteCallback> completeCallback(
mCompleteCallbacks[index].forget());
MOZ_ASSERT(completeCallback);
MOZ_ASSERT(completeCallback->mCallback);
Unused << completeCallback->mCallback->Run();
}
mCompleteCallbacks.Clear();
// And make sure they get processed.
nsIThread* currentThread = NS_GetCurrentThread();
MOZ_ASSERT(currentThread);
MOZ_ALWAYS_SUCCEEDS(NS_ProcessPendingEvents(currentThread));
}
mShutdownComplete = true;
}
void ConnectionPool::AdjustIdleTimer() {
AssertIsOnOwningThread();
MOZ_ASSERT(mIdleTimer);
AUTO_PROFILER_LABEL("ConnectionPool::AdjustIdleTimer", DOM);
// Figure out the next time at which we should release idle resources. This
// includes both databases and threads.
TimeStamp newTargetIdleTime;
MOZ_ASSERT(newTargetIdleTime.IsNull());
if (!mIdleDatabases.IsEmpty()) {
newTargetIdleTime = mIdleDatabases[0].mIdleTime;
}
if (!mIdleThreads.IsEmpty()) {
const TimeStamp& idleTime = mIdleThreads[0].mIdleTime;
if (newTargetIdleTime.IsNull() || idleTime < newTargetIdleTime) {
newTargetIdleTime = idleTime;
}
}
MOZ_ASSERT_IF(newTargetIdleTime.IsNull(), mIdleDatabases.IsEmpty());
MOZ_ASSERT_IF(newTargetIdleTime.IsNull(), mIdleThreads.IsEmpty());
// Cancel the timer if it was running and the new target time is different.
if (!mTargetIdleTime.IsNull() &&
(newTargetIdleTime.IsNull() || mTargetIdleTime != newTargetIdleTime)) {
CancelIdleTimer();
MOZ_ASSERT(mTargetIdleTime.IsNull());
}
// Schedule the timer if we have a target time different than before.
if (!newTargetIdleTime.IsNull() &&
(mTargetIdleTime.IsNull() || mTargetIdleTime != newTargetIdleTime)) {
double delta = (newTargetIdleTime - TimeStamp::NowLoRes()).ToMilliseconds();
uint32_t delay;
if (delta > 0) {
delay = uint32_t(std::min(delta, double(UINT32_MAX)));
} else {
delay = 0;
}
MOZ_ALWAYS_SUCCEEDS(mIdleTimer->InitWithNamedFuncCallback(
IdleTimerCallback, this, delay, nsITimer::TYPE_ONE_SHOT,
"ConnectionPool::IdleTimerCallback"));
mTargetIdleTime = newTargetIdleTime;
}
}
void ConnectionPool::CancelIdleTimer() {
AssertIsOnOwningThread();
MOZ_ASSERT(mIdleTimer);
if (!mTargetIdleTime.IsNull()) {
MOZ_ALWAYS_SUCCEEDS(mIdleTimer->Cancel());
mTargetIdleTime = TimeStamp();
MOZ_ASSERT(mTargetIdleTime.IsNull());
}
}
void ConnectionPool::ShutdownThread(ThreadInfo& aThreadInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(aThreadInfo.mThread);
MOZ_ASSERT(aThreadInfo.mRunnable);
MOZ_ASSERT(mTotalThreadCount);
RefPtr<ThreadRunnable> runnable;
aThreadInfo.mRunnable.swap(runnable);
nsCOMPtr<nsIThread> thread;
aThreadInfo.mThread.swap(thread);
IDB_DEBUG_LOG(("ConnectionPool shutting down thread %" PRIu32,
runnable->SerialNumber()));
// This should clean up the thread with the profiler.
MOZ_ALWAYS_SUCCEEDS(thread->Dispatch(runnable.forget(), NS_DISPATCH_NORMAL));
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(
NewRunnableMethod("nsIThread::Shutdown", thread, &nsIThread::Shutdown)));
mTotalThreadCount--;
}
void ConnectionPool::CloseIdleDatabases() {
AssertIsOnOwningThread();
MOZ_ASSERT(mShutdownRequested);
AUTO_PROFILER_LABEL("ConnectionPool::CloseIdleDatabases", DOM);
if (!mIdleDatabases.IsEmpty()) {
for (IdleDatabaseInfo& idleInfo : mIdleDatabases) {
CloseDatabase(idleInfo.mDatabaseInfo);
}
mIdleDatabases.Clear();
}
if (!mDatabasesPerformingIdleMaintenance.IsEmpty()) {
for (DatabaseInfo* dbInfo : mDatabasesPerformingIdleMaintenance) {
MOZ_ASSERT(dbInfo);
CloseDatabase(dbInfo);
}
mDatabasesPerformingIdleMaintenance.Clear();
}
}
void ConnectionPool::ShutdownIdleThreads() {
AssertIsOnOwningThread();
MOZ_ASSERT(mShutdownRequested);
AUTO_PROFILER_LABEL("ConnectionPool::ShutdownIdleThreads", DOM);
if (!mIdleThreads.IsEmpty()) {
for (uint32_t threadCount = mIdleThreads.Length(), threadIndex = 0;
threadIndex < threadCount; threadIndex++) {
ShutdownThread(mIdleThreads[threadIndex].mThreadInfo);
}
mIdleThreads.Clear();
}
}
bool ConnectionPool::ScheduleTransaction(TransactionInfo* aTransactionInfo,
bool aFromQueuedTransactions) {
AssertIsOnOwningThread();
MOZ_ASSERT(aTransactionInfo);
AUTO_PROFILER_LABEL("ConnectionPool::ScheduleTransaction", DOM);
DatabaseInfo* dbInfo = aTransactionInfo->mDatabaseInfo;
MOZ_ASSERT(dbInfo);
dbInfo->mIdle = false;
if (dbInfo->mClosing) {
MOZ_ASSERT(!mIdleDatabases.Contains(dbInfo));
MOZ_ASSERT(
!dbInfo->mTransactionsScheduledDuringClose.Contains(aTransactionInfo));
dbInfo->mTransactionsScheduledDuringClose.AppendElement(aTransactionInfo);
return true;
}
if (!dbInfo->mThreadInfo.mThread) {
MOZ_ASSERT(!dbInfo->mThreadInfo.mRunnable);
if (mIdleThreads.IsEmpty()) {
bool created = false;
if (mTotalThreadCount < kMaxConnectionThreadCount) {
// This will set the thread up with the profiler.
RefPtr<ThreadRunnable> runnable = new ThreadRunnable();
nsCOMPtr<nsIThread> newThread;
nsresult rv = NS_NewNamedThread(runnable->GetThreadName(),
getter_AddRefs(newThread), runnable);
if (NS_SUCCEEDED(rv)) {
MOZ_ASSERT(newThread);
IDB_DEBUG_LOG(("ConnectionPool created thread %" PRIu32,
runnable->SerialNumber()));
dbInfo->mThreadInfo.mThread.swap(newThread);
dbInfo->mThreadInfo.mRunnable.swap(runnable);
mTotalThreadCount++;
created = true;
} else {
NS_WARNING("Failed to make new thread!");
}
} else if (!mDatabasesPerformingIdleMaintenance.IsEmpty()) {
// We need a thread right now so force all idle processing to stop by
// posting a dummy runnable to each thread that might be doing idle
// maintenance.
nsCOMPtr<nsIRunnable> runnable = new Runnable("IndexedDBDummyRunnable");
for (uint32_t index = mDatabasesPerformingIdleMaintenance.Length();
index > 0; index--) {
DatabaseInfo* dbInfo = mDatabasesPerformingIdleMaintenance[index - 1];
MOZ_ASSERT(dbInfo);
MOZ_ASSERT(dbInfo->mThreadInfo.mThread);
MOZ_ALWAYS_SUCCEEDS(dbInfo->mThreadInfo.mThread->Dispatch(
runnable.forget(), NS_DISPATCH_NORMAL));
}
}
if (!created) {
if (!aFromQueuedTransactions) {
MOZ_ASSERT(!mQueuedTransactions.Contains(aTransactionInfo));
mQueuedTransactions.AppendElement(aTransactionInfo);
}
return false;
}
} else {
const uint32_t lastIndex = mIdleThreads.Length() - 1;
ThreadInfo& threadInfo = mIdleThreads[lastIndex].mThreadInfo;
dbInfo->mThreadInfo.mRunnable.swap(threadInfo.mRunnable);
dbInfo->mThreadInfo.mThread.swap(threadInfo.mThread);
mIdleThreads.RemoveElementAt(lastIndex);
AdjustIdleTimer();
}
}
MOZ_ASSERT(dbInfo->mThreadInfo.mThread);
MOZ_ASSERT(dbInfo->mThreadInfo.mRunnable);
if (aTransactionInfo->mIsWriteTransaction) {
if (dbInfo->mRunningWriteTransaction) {
// SQLite only allows one write transaction at a time so queue this
// transaction for later.
MOZ_ASSERT(
!dbInfo->mScheduledWriteTransactions.Contains(aTransactionInfo));
dbInfo->mScheduledWriteTransactions.AppendElement(aTransactionInfo);
return true;
}
dbInfo->mRunningWriteTransaction = aTransactionInfo;
dbInfo->mNeedsCheckpoint = true;
}
MOZ_ASSERT(!aTransactionInfo->mRunning);
aTransactionInfo->mRunning = true;
nsTArray<nsCOMPtr<nsIRunnable>>& queuedRunnables =
aTransactionInfo->mQueuedRunnables;
if (!queuedRunnables.IsEmpty()) {
for (uint32_t index = 0, count = queuedRunnables.Length(); index < count;
index++) {
nsCOMPtr<nsIRunnable> runnable;
queuedRunnables[index].swap(runnable);
MOZ_ALWAYS_SUCCEEDS(dbInfo->mThreadInfo.mThread->Dispatch(
runnable.forget(), NS_DISPATCH_NORMAL));
}
queuedRunnables.Clear();
}
return true;
}
void ConnectionPool::NoteFinishedTransaction(uint64_t aTransactionId) {
AssertIsOnOwningThread();
AUTO_PROFILER_LABEL("ConnectionPool::NoteFinishedTransaction", DOM);
TransactionInfo* transactionInfo = mTransactions.Get(aTransactionId);
MOZ_ASSERT(transactionInfo);
MOZ_ASSERT(transactionInfo->mRunning);
MOZ_ASSERT(transactionInfo->mFinished);
transactionInfo->mRunning = false;
DatabaseInfo* dbInfo = transactionInfo->mDatabaseInfo;
MOZ_ASSERT(dbInfo);
MOZ_ASSERT(mDatabases.Get(transactionInfo->mDatabaseId) == dbInfo);
MOZ_ASSERT(dbInfo->mThreadInfo.mThread);
MOZ_ASSERT(dbInfo->mThreadInfo.mRunnable);
// Schedule the next write transaction if there are any queued.
if (dbInfo->mRunningWriteTransaction == transactionInfo) {
MOZ_ASSERT(transactionInfo->mIsWriteTransaction);
MOZ_ASSERT(dbInfo->mNeedsCheckpoint);
dbInfo->mRunningWriteTransaction = nullptr;
if (!dbInfo->mScheduledWriteTransactions.IsEmpty()) {
TransactionInfo* nextWriteTransaction =
dbInfo->mScheduledWriteTransactions[0];
MOZ_ASSERT(nextWriteTransaction);
dbInfo->mScheduledWriteTransactions.RemoveElementAt(0);
MOZ_ALWAYS_TRUE(ScheduleTransaction(nextWriteTransaction,
/* aFromQueuedTransactions */ false));
}
}
const nsTArray<nsString>& objectStoreNames =
transactionInfo->mObjectStoreNames;
for (uint32_t index = 0, count = objectStoreNames.Length(); index < count;
index++) {
TransactionInfoPair* blockInfo =
dbInfo->mBlockingTransactions.Get(objectStoreNames[index]);
MOZ_ASSERT(blockInfo);
if (transactionInfo->mIsWriteTransaction &&
blockInfo->mLastBlockingReads == transactionInfo) {
blockInfo->mLastBlockingReads = nullptr;
}
blockInfo->mLastBlockingWrites.RemoveElement(transactionInfo);
}
transactionInfo->RemoveBlockingTransactions();
if (transactionInfo->mIsWriteTransaction) {
MOZ_ASSERT(dbInfo->mWriteTransactionCount);
dbInfo->mWriteTransactionCount--;
} else {
MOZ_ASSERT(dbInfo->mReadTransactionCount);
dbInfo->mReadTransactionCount--;
}
mTransactions.Remove(aTransactionId);
#ifdef DEBUG
// That just deleted |transactionInfo|.
transactionInfo = nullptr;
#endif
if (!dbInfo->TotalTransactionCount()) {
MOZ_ASSERT(!dbInfo->mIdle);
dbInfo->mIdle = true;
NoteIdleDatabase(dbInfo);
}
}
void ConnectionPool::ScheduleQueuedTransactions(ThreadInfo& aThreadInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(aThreadInfo.mThread);
MOZ_ASSERT(aThreadInfo.mRunnable);
MOZ_ASSERT(!mQueuedTransactions.IsEmpty());
MOZ_ASSERT(!mIdleThreads.Contains(aThreadInfo));
AUTO_PROFILER_LABEL("ConnectionPool::ScheduleQueuedTransactions", DOM);
mIdleThreads.InsertElementSorted(aThreadInfo);
aThreadInfo.mRunnable = nullptr;
aThreadInfo.mThread = nullptr;
uint32_t index = 0;
for (uint32_t count = mQueuedTransactions.Length(); index < count; index++) {
if (!ScheduleTransaction(mQueuedTransactions[index],
/* aFromQueuedTransactions */ true)) {
break;
}
}
if (index) {
mQueuedTransactions.RemoveElementsAt(0, index);
}
AdjustIdleTimer();
}
void ConnectionPool::NoteIdleDatabase(DatabaseInfo* aDatabaseInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(aDatabaseInfo);
MOZ_ASSERT(!aDatabaseInfo->TotalTransactionCount());
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mThread);
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mRunnable);
MOZ_ASSERT(!mIdleDatabases.Contains(aDatabaseInfo));
AUTO_PROFILER_LABEL("ConnectionPool::NoteIdleDatabase", DOM);
const bool otherDatabasesWaiting = !mQueuedTransactions.IsEmpty();
if (mShutdownRequested || otherDatabasesWaiting ||
aDatabaseInfo->mCloseOnIdle) {
// Make sure we close the connection if we're shutting down or giving the
// thread to another database.
CloseDatabase(aDatabaseInfo);
if (otherDatabasesWaiting) {
// Let another database use this thread.
ScheduleQueuedTransactions(aDatabaseInfo->mThreadInfo);
} else if (mShutdownRequested) {
// If there are no other databases that need to run then we can shut this
// thread down immediately instead of going through the idle thread
// mechanism.
ShutdownThread(aDatabaseInfo->mThreadInfo);
}
return;
}
mIdleDatabases.InsertElementSorted(aDatabaseInfo);
AdjustIdleTimer();
}
void ConnectionPool::NoteClosedDatabase(DatabaseInfo* aDatabaseInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(aDatabaseInfo);
MOZ_ASSERT(aDatabaseInfo->mClosing);
MOZ_ASSERT(!mIdleDatabases.Contains(aDatabaseInfo));
AUTO_PROFILER_LABEL("ConnectionPool::NoteClosedDatabase", DOM);
aDatabaseInfo->mClosing = false;
// Figure out what to do with this database's thread. It may have already been
// given to another database, in which case there's nothing to do here.
// Otherwise we prioritize the thread as follows:
// 1. Databases that haven't had an opportunity to run at all are highest
// priority. Those live in the |mQueuedTransactions| list.
// 2. If this database has additional transactions that were started after
// we began closing the connection then the thread can be reused for
// those transactions.
// 3. If we're shutting down then we can get rid of the thread.
// 4. Finally, if nothing above took the thread then we can add it to our
// list of idle threads. It may be reused or it may time out. If we have
// too many idle threads then we will shut down the oldest.
if (aDatabaseInfo->mThreadInfo.mThread) {
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mRunnable);
if (!mQueuedTransactions.IsEmpty()) {
// Give the thread to another database.
ScheduleQueuedTransactions(aDatabaseInfo->mThreadInfo);
} else if (!aDatabaseInfo->TotalTransactionCount()) {
if (mShutdownRequested) {
ShutdownThread(aDatabaseInfo->mThreadInfo);
} else {
MOZ_ASSERT(!mIdleThreads.Contains(aDatabaseInfo->mThreadInfo));
mIdleThreads.InsertElementSorted(aDatabaseInfo->mThreadInfo);
aDatabaseInfo->mThreadInfo.mRunnable = nullptr;
aDatabaseInfo->mThreadInfo.mThread = nullptr;
if (mIdleThreads.Length() > kMaxIdleConnectionThreadCount) {
ShutdownThread(mIdleThreads[0].mThreadInfo);
mIdleThreads.RemoveElementAt(0);
}
AdjustIdleTimer();
}
}
}
// Schedule any transactions that were started while we were closing the
// connection.
if (aDatabaseInfo->TotalTransactionCount()) {
nsTArray<TransactionInfo*>& scheduledTransactions =
aDatabaseInfo->mTransactionsScheduledDuringClose;
MOZ_ASSERT(!scheduledTransactions.IsEmpty());
for (uint32_t index = 0, count = scheduledTransactions.Length();
index < count; index++) {
Unused << ScheduleTransaction(scheduledTransactions[index],
/* aFromQueuedTransactions */ false);
}
scheduledTransactions.Clear();
return;
}
// There are no more transactions and the connection has been closed. We're
// done with this database.
{
MutexAutoLock lock(mDatabasesMutex);
mDatabases.Remove(aDatabaseInfo->mDatabaseId);
}
#ifdef DEBUG
// That just deleted |aDatabaseInfo|.
aDatabaseInfo = nullptr;
#endif
// See if we need to fire any complete callbacks now that the database is
// finished.
for (uint32_t index = 0; index < mCompleteCallbacks.Length();
/* conditionally incremented */) {
if (MaybeFireCallback(mCompleteCallbacks[index])) {
mCompleteCallbacks.RemoveElementAt(index);
} else {
index++;
}
}
// If that was the last database and we're supposed to be shutting down then
// we are finished.
if (mShutdownRequested && !mDatabases.Count()) {
MOZ_ASSERT(!mTransactions.Count());
Cleanup();
}
}
bool ConnectionPool::MaybeFireCallback(DatabasesCompleteCallback* aCallback) {
AssertIsOnOwningThread();
MOZ_ASSERT(aCallback);
MOZ_ASSERT(!aCallback->mDatabaseIds.IsEmpty());
MOZ_ASSERT(aCallback->mCallback);
AUTO_PROFILER_LABEL("ConnectionPool::MaybeFireCallback", DOM);
for (uint32_t count = aCallback->mDatabaseIds.Length(), index = 0;
index < count; index++) {
const nsCString& databaseId = aCallback->mDatabaseIds[index];
MOZ_ASSERT(!databaseId.IsEmpty());
if (mDatabases.Get(databaseId)) {
return false;
}
}
Unused << aCallback->mCallback->Run();
return true;
}
void ConnectionPool::PerformIdleDatabaseMaintenance(
DatabaseInfo* aDatabaseInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(aDatabaseInfo);
MOZ_ASSERT(!aDatabaseInfo->TotalTransactionCount());
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mThread);
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mRunnable);
MOZ_ASSERT(aDatabaseInfo->mIdle);
MOZ_ASSERT(!aDatabaseInfo->mCloseOnIdle);
MOZ_ASSERT(!aDatabaseInfo->mClosing);
MOZ_ASSERT(mIdleDatabases.Contains(aDatabaseInfo));
MOZ_ASSERT(!mDatabasesPerformingIdleMaintenance.Contains(aDatabaseInfo));
nsCOMPtr<nsIRunnable> runnable = new IdleConnectionRunnable(
aDatabaseInfo, aDatabaseInfo->mNeedsCheckpoint);
aDatabaseInfo->mNeedsCheckpoint = false;
aDatabaseInfo->mIdle = false;
mDatabasesPerformingIdleMaintenance.AppendElement(aDatabaseInfo);
MOZ_ALWAYS_SUCCEEDS(aDatabaseInfo->mThreadInfo.mThread->Dispatch(
runnable.forget(), NS_DISPATCH_NORMAL));
}
void ConnectionPool::CloseDatabase(DatabaseInfo* aDatabaseInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(aDatabaseInfo);
MOZ_ASSERT(!aDatabaseInfo->TotalTransactionCount());
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mThread);
MOZ_ASSERT(aDatabaseInfo->mThreadInfo.mRunnable);
MOZ_ASSERT(!aDatabaseInfo->mClosing);
aDatabaseInfo->mIdle = false;
aDatabaseInfo->mNeedsCheckpoint = false;
aDatabaseInfo->mClosing = true;
nsCOMPtr<nsIRunnable> runnable = new CloseConnectionRunnable(aDatabaseInfo);
MOZ_ALWAYS_SUCCEEDS(aDatabaseInfo->mThreadInfo.mThread->Dispatch(
runnable.forget(), NS_DISPATCH_NORMAL));
}
bool ConnectionPool::CloseDatabaseWhenIdleInternal(
const nsACString& aDatabaseId) {
AssertIsOnOwningThread();
MOZ_ASSERT(!aDatabaseId.IsEmpty());
AUTO_PROFILER_LABEL("ConnectionPool::CloseDatabaseWhenIdleInternal", DOM);
if (DatabaseInfo* dbInfo = mDatabases.Get(aDatabaseId)) {
if (mIdleDatabases.RemoveElement(dbInfo) ||
mDatabasesPerformingIdleMaintenance.RemoveElement(dbInfo)) {
CloseDatabase(dbInfo);
AdjustIdleTimer();
} else {
dbInfo->mCloseOnIdle = true;
}
return true;
}
return false;
}
ConnectionPool::ConnectionRunnable::ConnectionRunnable(
DatabaseInfo* aDatabaseInfo)
: Runnable("dom::indexedDB::ConnectionPool::ConnectionRunnable"),
mDatabaseInfo(aDatabaseInfo),
mOwningEventTarget(GetCurrentThreadEventTarget()) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabaseInfo);
MOZ_ASSERT(aDatabaseInfo->mConnectionPool);
aDatabaseInfo->mConnectionPool->AssertIsOnOwningThread();
MOZ_ASSERT(mOwningEventTarget);
}
NS_IMETHODIMP
ConnectionPool::IdleConnectionRunnable::Run() {
MOZ_ASSERT(mDatabaseInfo);
MOZ_ASSERT(!mDatabaseInfo->mIdle);
nsCOMPtr<nsIEventTarget> owningThread;
mOwningEventTarget.swap(owningThread);
if (owningThread) {
mDatabaseInfo->AssertIsOnConnectionThread();
// The connection could be null if EnsureConnection() didn't run or was not
// successful in TransactionDatabaseOperationBase::RunOnConnectionThread().
if (mDatabaseInfo->mConnection) {
mDatabaseInfo->mConnection->DoIdleProcessing(mNeedsCheckpoint);
MOZ_ALWAYS_SUCCEEDS(owningThread->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
}
RefPtr<ConnectionPool> connectionPool = mDatabaseInfo->mConnectionPool;
MOZ_ASSERT(connectionPool);
if (mDatabaseInfo->mClosing || mDatabaseInfo->TotalTransactionCount()) {
MOZ_ASSERT(!connectionPool->mDatabasesPerformingIdleMaintenance.Contains(
mDatabaseInfo));
} else {
MOZ_ALWAYS_TRUE(
connectionPool->mDatabasesPerformingIdleMaintenance.RemoveElement(
mDatabaseInfo));
connectionPool->NoteIdleDatabase(mDatabaseInfo);
}
return NS_OK;
}
NS_IMETHODIMP
ConnectionPool::CloseConnectionRunnable::Run() {
MOZ_ASSERT(mDatabaseInfo);
AUTO_PROFILER_LABEL("ConnectionPool::CloseConnectionRunnable::Run", DOM);
if (mOwningEventTarget) {
MOZ_ASSERT(mDatabaseInfo->mClosing);
nsCOMPtr<nsIEventTarget> owningThread;
mOwningEventTarget.swap(owningThread);
// The connection could be null if EnsureConnection() didn't run or was not
// successful in TransactionDatabaseOperationBase::RunOnConnectionThread().
if (mDatabaseInfo->mConnection) {
mDatabaseInfo->AssertIsOnConnectionThread();
mDatabaseInfo->mConnection->Close();
IDB_DEBUG_LOG(("ConnectionPool closed connection 0x%p",
mDatabaseInfo->mConnection.get()));
mDatabaseInfo->mConnection = nullptr;
#ifdef DEBUG
mDatabaseInfo->mDEBUGConnectionThread = nullptr;
#endif
}
MOZ_ALWAYS_SUCCEEDS(owningThread->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
RefPtr<ConnectionPool> connectionPool = mDatabaseInfo->mConnectionPool;
MOZ_ASSERT(connectionPool);
connectionPool->NoteClosedDatabase(mDatabaseInfo);
return NS_OK;
}
ConnectionPool::DatabaseInfo::DatabaseInfo(ConnectionPool* aConnectionPool,
const nsACString& aDatabaseId)
: mConnectionPool(aConnectionPool),
mDatabaseId(aDatabaseId),
mRunningWriteTransaction(nullptr),
mReadTransactionCount(0),
mWriteTransactionCount(0),
mNeedsCheckpoint(false),
mIdle(false),
mCloseOnIdle(false),
mClosing(false)
#ifdef DEBUG
,
mDEBUGConnectionThread(nullptr)
#endif
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(aConnectionPool);
aConnectionPool->AssertIsOnOwningThread();
MOZ_ASSERT(!aDatabaseId.IsEmpty());
MOZ_COUNT_CTOR(ConnectionPool::DatabaseInfo);
}
ConnectionPool::DatabaseInfo::~DatabaseInfo() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mConnection);
MOZ_ASSERT(mScheduledWriteTransactions.IsEmpty());
MOZ_ASSERT(!mRunningWriteTransaction);
MOZ_ASSERT(!mThreadInfo.mThread);
MOZ_ASSERT(!mThreadInfo.mRunnable);
MOZ_ASSERT(!TotalTransactionCount());
MOZ_COUNT_DTOR(ConnectionPool::DatabaseInfo);
}
ConnectionPool::DatabasesCompleteCallback::DatabasesCompleteCallback(
nsTArray<nsCString>&& aDatabaseIds, nsIRunnable* aCallback)
: mDatabaseIds(std::move(aDatabaseIds)), mCallback(aCallback) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mDatabaseIds.IsEmpty());
MOZ_ASSERT(aCallback);
MOZ_COUNT_CTOR(ConnectionPool::DatabasesCompleteCallback);
}
ConnectionPool::DatabasesCompleteCallback::~DatabasesCompleteCallback() {
AssertIsOnBackgroundThread();
MOZ_COUNT_DTOR(ConnectionPool::DatabasesCompleteCallback);
}
ConnectionPool::FinishCallbackWrapper::FinishCallbackWrapper(
ConnectionPool* aConnectionPool, uint64_t aTransactionId,
FinishCallback* aCallback)
: Runnable("dom::indexedDB::ConnectionPool::FinishCallbackWrapper"),
mConnectionPool(aConnectionPool),
mCallback(aCallback),
mOwningEventTarget(GetCurrentThreadEventTarget()),
mTransactionId(aTransactionId),
mHasRunOnce(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aConnectionPool);
MOZ_ASSERT(aCallback);
MOZ_ASSERT(mOwningEventTarget);
}
ConnectionPool::FinishCallbackWrapper::~FinishCallbackWrapper() {
MOZ_ASSERT(!mConnectionPool);
MOZ_ASSERT(!mCallback);
}
nsresult ConnectionPool::FinishCallbackWrapper::Run() {
MOZ_ASSERT(mConnectionPool);
MOZ_ASSERT(mCallback);
MOZ_ASSERT(mOwningEventTarget);
AUTO_PROFILER_LABEL("ConnectionPool::FinishCallbackWrapper::Run", DOM);
if (!mHasRunOnce) {
MOZ_ASSERT(!IsOnBackgroundThread());
mHasRunOnce = true;
Unused << mCallback->Run();
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
mConnectionPool->AssertIsOnOwningThread();
MOZ_ASSERT(mHasRunOnce);
RefPtr<ConnectionPool> connectionPool = std::move(mConnectionPool);
RefPtr<FinishCallback> callback = std::move(mCallback);
callback->TransactionFinishedBeforeUnblock();
connectionPool->NoteFinishedTransaction(mTransactionId);
callback->TransactionFinishedAfterUnblock();
return NS_OK;
}
uint32_t ConnectionPool::ThreadRunnable::sNextSerialNumber = 0;
ConnectionPool::ThreadRunnable::ThreadRunnable()
: Runnable("dom::indexedDB::ConnectionPool::ThreadRunnable"),
mSerialNumber(++sNextSerialNumber),
mFirstRun(true),
mContinueRunning(true) {
AssertIsOnBackgroundThread();
}
ConnectionPool::ThreadRunnable::~ThreadRunnable() {
MOZ_ASSERT(!mFirstRun);
MOZ_ASSERT(!mContinueRunning);
}
nsresult ConnectionPool::ThreadRunnable::Run() {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mContinueRunning);
if (!mFirstRun) {
mContinueRunning = false;
return NS_OK;
}
mFirstRun = false;
{
// Scope for the profiler label.
AUTO_PROFILER_LABEL("ConnectionPool::ThreadRunnable::Run", DOM);
DebugOnly<nsIThread*> currentThread = NS_GetCurrentThread();
MOZ_ASSERT(currentThread);
#ifdef DEBUG
if (kDEBUGTransactionThreadPriority !=
nsISupportsPriority::PRIORITY_NORMAL) {
NS_WARNING(
"ConnectionPool thread debugging enabled, priority has been "
"modified!");
nsCOMPtr<nsISupportsPriority> thread = do_QueryInterface(currentThread);
MOZ_ASSERT(thread);
MOZ_ALWAYS_SUCCEEDS(thread->SetPriority(kDEBUGTransactionThreadPriority));
}
if (kDEBUGTransactionThreadSleepMS) {
NS_WARNING(
"TransactionThreadPool thread debugging enabled, sleeping "
"after every event!");
}
#endif // DEBUG
DebugOnly<bool> b = SpinEventLoopUntil([&]() -> bool {
if (!mContinueRunning) {
return true;
}
#ifdef DEBUG
if (kDEBUGTransactionThreadSleepMS) {
MOZ_ALWAYS_TRUE(PR_Sleep(PR_MillisecondsToInterval(
kDEBUGTransactionThreadSleepMS)) == PR_SUCCESS);
}
#endif // DEBUG
return false;
});
// MSVC can't stringify lambdas, so we have to separate the expression
// generating the value from the assert itself.
#if DEBUG
MOZ_ALWAYS_TRUE(b);
#endif
}
return NS_OK;
}
ConnectionPool::ThreadInfo::ThreadInfo() {
AssertIsOnBackgroundThread();
MOZ_COUNT_CTOR(ConnectionPool::ThreadInfo);
}
ConnectionPool::ThreadInfo::ThreadInfo(const ThreadInfo& aOther)
: mThread(aOther.mThread), mRunnable(aOther.mRunnable) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aOther.mThread);
MOZ_ASSERT(aOther.mRunnable);
MOZ_COUNT_CTOR(ConnectionPool::ThreadInfo);
}
ConnectionPool::ThreadInfo::~ThreadInfo() {
AssertIsOnBackgroundThread();
MOZ_COUNT_DTOR(ConnectionPool::ThreadInfo);
}
ConnectionPool::IdleResource::IdleResource(const TimeStamp& aIdleTime)
: mIdleTime(aIdleTime) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!aIdleTime.IsNull());
MOZ_COUNT_CTOR(ConnectionPool::IdleResource);
}
ConnectionPool::IdleResource::~IdleResource() {
AssertIsOnBackgroundThread();
MOZ_COUNT_DTOR(ConnectionPool::IdleResource);
}
ConnectionPool::IdleDatabaseInfo::IdleDatabaseInfo(DatabaseInfo* aDatabaseInfo)
: IdleResource(
TimeStamp::NowLoRes() +
(aDatabaseInfo->mIdle
? TimeDuration::FromMilliseconds(kConnectionIdleMaintenanceMS)
: TimeDuration::FromMilliseconds(kConnectionIdleCloseMS))),
mDatabaseInfo(aDatabaseInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabaseInfo);
MOZ_COUNT_CTOR(ConnectionPool::IdleDatabaseInfo);
}
ConnectionPool::IdleDatabaseInfo::~IdleDatabaseInfo() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mDatabaseInfo);
MOZ_COUNT_DTOR(ConnectionPool::IdleDatabaseInfo);
}
ConnectionPool::IdleThreadInfo::IdleThreadInfo(const ThreadInfo& aThreadInfo)
: IdleResource(TimeStamp::NowLoRes() +
TimeDuration::FromMilliseconds(kConnectionThreadIdleMS)),
mThreadInfo(aThreadInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aThreadInfo.mRunnable);
MOZ_ASSERT(aThreadInfo.mThread);
MOZ_COUNT_CTOR(ConnectionPool::IdleThreadInfo);
}
ConnectionPool::IdleThreadInfo::~IdleThreadInfo() {
AssertIsOnBackgroundThread();
MOZ_COUNT_DTOR(ConnectionPool::IdleThreadInfo);
}
ConnectionPool::TransactionInfo::TransactionInfo(
DatabaseInfo* aDatabaseInfo, const nsID& aBackgroundChildLoggingId,
const nsACString& aDatabaseId, uint64_t aTransactionId,
int64_t aLoggingSerialNumber, const nsTArray<nsString>& aObjectStoreNames,
bool aIsWriteTransaction, TransactionDatabaseOperationBase* aTransactionOp)
: mDatabaseInfo(aDatabaseInfo),
mBackgroundChildLoggingId(aBackgroundChildLoggingId),
mDatabaseId(aDatabaseId),
mTransactionId(aTransactionId),
mLoggingSerialNumber(aLoggingSerialNumber),
mObjectStoreNames(aObjectStoreNames),
mIsWriteTransaction(aIsWriteTransaction),
mRunning(false)
#ifdef DEBUG
,
mFinished(false)
#endif
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabaseInfo);
aDatabaseInfo->mConnectionPool->AssertIsOnOwningThread();
MOZ_COUNT_CTOR(ConnectionPool::TransactionInfo);
if (aTransactionOp) {
mQueuedRunnables.AppendElement(aTransactionOp);
}
}
ConnectionPool::TransactionInfo::~TransactionInfo() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mBlockedOn.Count());
MOZ_ASSERT(mQueuedRunnables.IsEmpty());
MOZ_ASSERT(!mRunning);
MOZ_ASSERT(mFinished);
MOZ_COUNT_DTOR(ConnectionPool::TransactionInfo);
}
void ConnectionPool::TransactionInfo::AddBlockingTransaction(
TransactionInfo* aTransactionInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransactionInfo);
if (!mBlocking.Contains(aTransactionInfo)) {
mBlocking.PutEntry(aTransactionInfo);
mBlockingOrdered.AppendElement(aTransactionInfo);
}
}
void ConnectionPool::TransactionInfo::RemoveBlockingTransactions() {
AssertIsOnBackgroundThread();
for (uint32_t index = 0, count = mBlockingOrdered.Length(); index < count;
index++) {
TransactionInfo* blockedInfo = mBlockingOrdered[index];
MOZ_ASSERT(blockedInfo);
blockedInfo->MaybeUnblock(this);
}
mBlocking.Clear();
mBlockingOrdered.Clear();
}
void ConnectionPool::TransactionInfo::MaybeUnblock(
TransactionInfo* aTransactionInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mBlockedOn.Contains(aTransactionInfo));
mBlockedOn.RemoveEntry(aTransactionInfo);
if (!mBlockedOn.Count()) {
MOZ_ASSERT(mDatabaseInfo);
ConnectionPool* connectionPool = mDatabaseInfo->mConnectionPool;
MOZ_ASSERT(connectionPool);
connectionPool->AssertIsOnOwningThread();
Unused << connectionPool->ScheduleTransaction(
this,
/* aFromQueuedTransactions */ false);
}
}
ConnectionPool::TransactionInfoPair::TransactionInfoPair()
: mLastBlockingReads(nullptr) {
AssertIsOnBackgroundThread();
MOZ_COUNT_CTOR(ConnectionPool::TransactionInfoPair);
}
ConnectionPool::TransactionInfoPair::~TransactionInfoPair() {
AssertIsOnBackgroundThread();
MOZ_COUNT_DTOR(ConnectionPool::TransactionInfoPair);
}
/*******************************************************************************
* Metadata classes
******************************************************************************/
bool FullObjectStoreMetadata::HasLiveIndexes() const {
AssertIsOnBackgroundThread();
for (auto iter = mIndexes.ConstIter(); !iter.Done(); iter.Next()) {
if (!iter.Data()->mDeleted) {
return true;
}
}
return false;
}
already_AddRefed<FullDatabaseMetadata> FullDatabaseMetadata::Duplicate() const {
AssertIsOnBackgroundThread();
// FullDatabaseMetadata contains two hash tables of pointers that we need to
// duplicate so we can't just use the copy constructor.
RefPtr<FullDatabaseMetadata> newMetadata =
new FullDatabaseMetadata(mCommonMetadata);
newMetadata->mDatabaseId = mDatabaseId;
newMetadata->mFilePath = mFilePath;
newMetadata->mNextObjectStoreId = mNextObjectStoreId;
newMetadata->mNextIndexId = mNextIndexId;
for (auto iter = mObjectStores.ConstIter(); !iter.Done(); iter.Next()) {
auto key = iter.Key();
auto value = iter.Data();
RefPtr<FullObjectStoreMetadata> newOSMetadata =
new FullObjectStoreMetadata();
newOSMetadata->mCommonMetadata = value->mCommonMetadata;
newOSMetadata->mNextAutoIncrementId = value->mNextAutoIncrementId;
newOSMetadata->mCommittedAutoIncrementId = value->mCommittedAutoIncrementId;
for (auto iter = value->mIndexes.ConstIter(); !iter.Done(); iter.Next()) {
auto key = iter.Key();
auto value = iter.Data();
RefPtr<FullIndexMetadata> newIndexMetadata = new FullIndexMetadata();
newIndexMetadata->mCommonMetadata = value->mCommonMetadata;
if (NS_WARN_IF(
!newOSMetadata->mIndexes.Put(key, newIndexMetadata, fallible))) {
return nullptr;
}
}
MOZ_ASSERT(value->mIndexes.Count() == newOSMetadata->mIndexes.Count());
if (NS_WARN_IF(
!newMetadata->mObjectStores.Put(key, newOSMetadata, fallible))) {
return nullptr;
}
}
MOZ_ASSERT(mObjectStores.Count() == newMetadata->mObjectStores.Count());
return newMetadata.forget();
}
DatabaseLoggingInfo::~DatabaseLoggingInfo() {
AssertIsOnBackgroundThread();
if (gLoggingInfoHashtable) {
const nsID& backgroundChildLoggingId =
mLoggingInfo.backgroundChildLoggingId();
MOZ_ASSERT(gLoggingInfoHashtable->Get(backgroundChildLoggingId) == this);
gLoggingInfoHashtable->Remove(backgroundChildLoggingId);
}
}
/*******************************************************************************
* Factory
******************************************************************************/
Factory::Factory(already_AddRefed<DatabaseLoggingInfo> aLoggingInfo)
: mLoggingInfo(std::move(aLoggingInfo))
#ifdef DEBUG
,
mActorDestroyed(false)
#endif
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(!QuotaClient::IsShuttingDownOnBackgroundThread());
}
Factory::~Factory() { MOZ_ASSERT(mActorDestroyed); }
// static
already_AddRefed<Factory> Factory::Create(const LoggingInfo& aLoggingInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!QuotaClient::IsShuttingDownOnBackgroundThread());
// Balanced in ActoryDestroy().
IncreaseBusyCount();
MOZ_ASSERT(gLoggingInfoHashtable);
RefPtr<DatabaseLoggingInfo> loggingInfo =
gLoggingInfoHashtable->Get(aLoggingInfo.backgroundChildLoggingId());
if (loggingInfo) {
MOZ_ASSERT(aLoggingInfo.backgroundChildLoggingId() == loggingInfo->Id());
#if !DISABLE_ASSERTS_FOR_FUZZING
NS_WARNING_ASSERTION(
aLoggingInfo.nextTransactionSerialNumber() ==
loggingInfo->mLoggingInfo.nextTransactionSerialNumber(),
"NextTransactionSerialNumber doesn't match!");
NS_WARNING_ASSERTION(
aLoggingInfo.nextVersionChangeTransactionSerialNumber() ==
loggingInfo->mLoggingInfo
.nextVersionChangeTransactionSerialNumber(),
"NextVersionChangeTransactionSerialNumber doesn't match!");
NS_WARNING_ASSERTION(
aLoggingInfo.nextRequestSerialNumber() ==
loggingInfo->mLoggingInfo.nextRequestSerialNumber(),
"NextRequestSerialNumber doesn't match!");
#endif // !DISABLE_ASSERTS_FOR_FUZZING
} else {
loggingInfo = new DatabaseLoggingInfo(aLoggingInfo);
gLoggingInfoHashtable->Put(aLoggingInfo.backgroundChildLoggingId(),
loggingInfo);
}
RefPtr<Factory> actor = new Factory(loggingInfo.forget());
return actor.forget();
}
void Factory::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
#ifdef DEBUG
mActorDestroyed = true;
#endif
// Match the IncreaseBusyCount in Create().
DecreaseBusyCount();
}
mozilla::ipc::IPCResult Factory::RecvDeleteMe() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
IProtocol* mgr = Manager();
if (!PBackgroundIDBFactoryParent::Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult Factory::RecvIncrementLoggingRequestSerialNumber() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mLoggingInfo);
mLoggingInfo->NextRequestSN();
return IPC_OK();
}
PBackgroundIDBFactoryRequestParent*
Factory::AllocPBackgroundIDBFactoryRequestParent(
const FactoryRequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != FactoryRequestParams::T__None);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread())) {
return nullptr;
}
const CommonFactoryRequestParams* commonParams;
switch (aParams.type()) {
case FactoryRequestParams::TOpenDatabaseRequestParams: {
const OpenDatabaseRequestParams& params =
aParams.get_OpenDatabaseRequestParams();
commonParams = &params.commonParams();
break;
}
case FactoryRequestParams::TDeleteDatabaseRequestParams: {
const DeleteDatabaseRequestParams& params =
aParams.get_DeleteDatabaseRequestParams();
commonParams = &params.commonParams();
break;
}
default:
MOZ_CRASH("Should never get here!");
}
MOZ_ASSERT(commonParams);
const DatabaseMetadata& metadata = commonParams->metadata();
if (NS_WARN_IF(metadata.persistenceType() != PERSISTENCE_TYPE_PERSISTENT &&
metadata.persistenceType() != PERSISTENCE_TYPE_TEMPORARY &&
metadata.persistenceType() != PERSISTENCE_TYPE_DEFAULT)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
const PrincipalInfo& principalInfo = commonParams->principalInfo();
if (NS_WARN_IF(principalInfo.type() == PrincipalInfo::TNullPrincipalInfo)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (NS_WARN_IF(principalInfo.type() == PrincipalInfo::TSystemPrincipalInfo &&
metadata.persistenceType() != PERSISTENCE_TYPE_PERSISTENT)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
RefPtr<ContentParent> contentParent =
BackgroundParent::GetContentParent(Manager());
RefPtr<FactoryOp> actor;
if (aParams.type() == FactoryRequestParams::TOpenDatabaseRequestParams) {
actor = new OpenDatabaseOp(this, contentParent.forget(), *commonParams);
} else {
actor = new DeleteDatabaseOp(this, contentParent.forget(), *commonParams);
}
gFactoryOps->AppendElement(actor);
// Balanced in CleanupMetadata() which is/must always called by SendResults().
IncreaseBusyCount();
// Transfer ownership to IPDL.
return actor.forget().take();
}
mozilla::ipc::IPCResult Factory::RecvPBackgroundIDBFactoryRequestConstructor(
PBackgroundIDBFactoryRequestParent* aActor,
const FactoryRequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != FactoryRequestParams::T__None);
MOZ_ASSERT(!QuotaClient::IsShuttingDownOnBackgroundThread());
auto* op = static_cast<FactoryOp*>(aActor);
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(op));
return IPC_OK();
}
bool Factory::DeallocPBackgroundIDBFactoryRequestParent(
PBackgroundIDBFactoryRequestParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
// Transfer ownership back from IPDL.
RefPtr<FactoryOp> op = dont_AddRef(static_cast<FactoryOp*>(aActor));
return true;
}
PBackgroundIDBDatabaseParent* Factory::AllocPBackgroundIDBDatabaseParent(
const DatabaseSpec& aSpec, PBackgroundIDBFactoryRequestParent* aRequest) {
MOZ_CRASH(
"PBackgroundIDBDatabaseParent actors should be constructed "
"manually!");
}
bool Factory::DeallocPBackgroundIDBDatabaseParent(
PBackgroundIDBDatabaseParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
RefPtr<Database> database = dont_AddRef(static_cast<Database*>(aActor));
return true;
}
/*******************************************************************************
* WaitForTransactionsHelper
******************************************************************************/
void WaitForTransactionsHelper::WaitForTransactions() {
MOZ_ASSERT(mState == State::Initial);
Unused << this->Run();
}
void WaitForTransactionsHelper::MaybeWaitForTransactions() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::Initial);
RefPtr<ConnectionPool> connectionPool = gConnectionPool.get();
if (connectionPool) {
nsTArray<nsCString> ids(1);
ids.AppendElement(mDatabaseId);
mState = State::WaitingForTransactions;
connectionPool->WaitForDatabasesToComplete(std::move(ids), this);
return;
}
MaybeWaitForFileHandles();
}
void WaitForTransactionsHelper::MaybeWaitForFileHandles() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::Initial ||
mState == State::WaitingForTransactions);
RefPtr<FileHandleThreadPool> fileHandleThreadPool =
gFileHandleThreadPool.get();
if (fileHandleThreadPool) {
nsTArray<nsCString> ids(1);
ids.AppendElement(mDatabaseId);
mState = State::WaitingForFileHandles;
fileHandleThreadPool->WaitForDirectoriesToComplete(std::move(ids), this);
return;
}
CallCallback();
}
void WaitForTransactionsHelper::CallCallback() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::Initial ||
mState == State::WaitingForTransactions ||
mState == State::WaitingForFileHandles);
nsCOMPtr<nsIRunnable> callback;
mCallback.swap(callback);
callback->Run();
mState = State::Complete;
}
NS_IMETHODIMP
WaitForTransactionsHelper::Run() {
MOZ_ASSERT(mState != State::Complete);
MOZ_ASSERT(mCallback);
switch (mState) {
case State::Initial:
MaybeWaitForTransactions();
break;
case State::WaitingForTransactions:
MaybeWaitForFileHandles();
break;
case State::WaitingForFileHandles:
CallCallback();
break;
default:
MOZ_CRASH("Should never get here!");
}
return NS_OK;
}
/*******************************************************************************
* Database
******************************************************************************/
Database::Database(Factory* aFactory, const PrincipalInfo& aPrincipalInfo,
const Maybe<ContentParentId>& aOptionalContentParentId,
const nsACString& aGroup, const nsACString& aOrigin,
uint32_t aTelemetryId, FullDatabaseMetadata* aMetadata,
FileManager* aFileManager,
already_AddRefed<DirectoryLock> aDirectoryLock,
bool aFileHandleDisabled, bool aChromeWriteAccessAllowed)
: mFactory(aFactory),
mMetadata(aMetadata),
mFileManager(aFileManager),
mDirectoryLock(std::move(aDirectoryLock)),
mPrincipalInfo(aPrincipalInfo),
mOptionalContentParentId(aOptionalContentParentId),
mGroup(aGroup),
mOrigin(aOrigin),
mId(aMetadata->mDatabaseId),
mFilePath(aMetadata->mFilePath),
mActiveMutableFileCount(0),
mTelemetryId(aTelemetryId),
mPersistenceType(aMetadata->mCommonMetadata.persistenceType()),
mFileHandleDisabled(aFileHandleDisabled),
mChromeWriteAccessAllowed(aChromeWriteAccessAllowed),
mClosed(false),
mInvalidated(false),
mActorWasAlive(false),
mActorDestroyed(false)
#ifdef DEBUG
,
mAllBlobsUnmapped(false)
#endif
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(aFactory);
MOZ_ASSERT(aMetadata);
MOZ_ASSERT(aFileManager);
MOZ_ASSERT_IF(aChromeWriteAccessAllowed,
aPrincipalInfo.type() == PrincipalInfo::TSystemPrincipalInfo);
}
void Database::Invalidate() {
AssertIsOnBackgroundThread();
class MOZ_STACK_CLASS Helper final {
public:
static bool InvalidateTransactions(
nsTHashtable<nsPtrHashKey<TransactionBase>>& aTable) {
AssertIsOnBackgroundThread();
const uint32_t count = aTable.Count();
if (!count) {
return true;
}
FallibleTArray<RefPtr<TransactionBase>> transactions;
if (NS_WARN_IF(!transactions.SetCapacity(count, fallible))) {
return false;
}
for (auto iter = aTable.Iter(); !iter.Done(); iter.Next()) {
if (NS_WARN_IF(
!transactions.AppendElement(iter.Get()->GetKey(), fallible))) {
return false;
}
}
if (count) {
IDB_REPORT_INTERNAL_ERR();
for (uint32_t index = 0; index < count; index++) {
RefPtr<TransactionBase> transaction = transactions[index].forget();
MOZ_ASSERT(transaction);
transaction->Invalidate();
}
}
return true;
}
static bool InvalidateMutableFiles(
nsTHashtable<nsPtrHashKey<MutableFile>>& aTable) {
AssertIsOnBackgroundThread();
const uint32_t count = aTable.Count();
if (!count) {
return true;
}
FallibleTArray<RefPtr<MutableFile>> mutableFiles;
if (NS_WARN_IF(!mutableFiles.SetCapacity(count, fallible))) {
return false;
}
for (auto iter = aTable.Iter(); !iter.Done(); iter.Next()) {
if (NS_WARN_IF(
!mutableFiles.AppendElement(iter.Get()->GetKey(), fallible))) {
return false;
}
}
if (count) {
IDB_REPORT_INTERNAL_ERR();
for (uint32_t index = 0; index < count; index++) {
RefPtr<MutableFile> mutableFile = mutableFiles[index].forget();
MOZ_ASSERT(mutableFile);
mutableFile->Invalidate();
}
}
return true;
}
};
if (mInvalidated) {
return;
}
mInvalidated = true;
if (mActorWasAlive && !mActorDestroyed) {
Unused << SendInvalidate();
}
if (!Helper::InvalidateTransactions(mTransactions)) {
NS_WARNING("Failed to abort all transactions!");
}
if (!Helper::InvalidateMutableFiles(mMutableFiles)) {
NS_WARNING("Failed to abort all mutable files!");
}
MOZ_ALWAYS_TRUE(CloseInternal());
}
nsresult Database::EnsureConnection() {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
AUTO_PROFILER_LABEL("Database::EnsureConnection", DOM);
if (!mConnection || !mConnection->GetStorageConnection()) {
nsresult rv = gConnectionPool->GetOrCreateConnection(
this, getter_AddRefs(mConnection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
AssertIsOnConnectionThread();
return NS_OK;
}
bool Database::RegisterTransaction(TransactionBase* aTransaction) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(!mTransactions.GetEntry(aTransaction));
MOZ_ASSERT(mDirectoryLock);
MOZ_ASSERT(!mInvalidated);
MOZ_ASSERT(!mClosed);
if (NS_WARN_IF(!mTransactions.PutEntry(aTransaction, fallible))) {
return false;
}
return true;
}
void Database::UnregisterTransaction(TransactionBase* aTransaction) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(mTransactions.GetEntry(aTransaction));
mTransactions.RemoveEntry(aTransaction);
MaybeCloseConnection();
}
bool Database::RegisterMutableFile(MutableFile* aMutableFile) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aMutableFile);
MOZ_ASSERT(!mMutableFiles.GetEntry(aMutableFile));
MOZ_ASSERT(mDirectoryLock);
if (NS_WARN_IF(!mMutableFiles.PutEntry(aMutableFile, fallible))) {
return false;
}
return true;
}
void Database::UnregisterMutableFile(MutableFile* aMutableFile) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aMutableFile);
MOZ_ASSERT(mMutableFiles.GetEntry(aMutableFile));
mMutableFiles.RemoveEntry(aMutableFile);
}
void Database::NoteActiveMutableFile() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mDirectoryLock);
MOZ_ASSERT(mActiveMutableFileCount < UINT32_MAX);
++mActiveMutableFileCount;
}
void Database::NoteInactiveMutableFile() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mActiveMutableFileCount > 0);
--mActiveMutableFileCount;
MaybeCloseConnection();
}
void Database::SetActorAlive() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorWasAlive);
MOZ_ASSERT(!mActorDestroyed);
mActorWasAlive = true;
// This reference will be absorbed by IPDL and released when the actor is
// destroyed.
AddRef();
}
void Database::MapBlob(const IPCBlob& aIPCBlob, FileInfo* aFileInfo) {
AssertIsOnBackgroundThread();
const IPCBlobStream& stream = aIPCBlob.inputStream();
MOZ_ASSERT(stream.type() == IPCBlobStream::TPIPCBlobInputStreamParent);
IPCBlobInputStreamParent* actor = static_cast<IPCBlobInputStreamParent*>(
stream.get_PIPCBlobInputStreamParent());
MOZ_ASSERT(!mMappedBlobs.GetWeak(actor->ID()));
mMappedBlobs.Put(actor->ID(), aFileInfo);
RefPtr<UnmapBlobCallback> callback = new UnmapBlobCallback(this);
actor->SetCallback(callback);
}
already_AddRefed<FileInfo> Database::GetBlob(const IPCBlob& aIPCBlob) {
AssertIsOnBackgroundThread();
const IPCBlobStream& stream = aIPCBlob.inputStream();
MOZ_ASSERT(stream.type() == IPCBlobStream::TIPCStream);
const IPCStream& ipcStream = stream.get_IPCStream();
const InputStreamParams& inputStreamParams = ipcStream.stream();
if (inputStreamParams.type() !=
InputStreamParams::TIPCBlobInputStreamParams) {
return nullptr;
}
const nsID& id = inputStreamParams.get_IPCBlobInputStreamParams().id();
RefPtr<FileInfo> fileInfo;
if (!mMappedBlobs.Get(id, getter_AddRefs(fileInfo))) {
return nullptr;
}
return fileInfo.forget();
}
void Database::UnmapBlob(const nsID& aID) {
AssertIsOnBackgroundThread();
MOZ_ASSERT_IF(!mAllBlobsUnmapped, mMappedBlobs.GetWeak(aID));
mMappedBlobs.Remove(aID);
}
void Database::UnmapAllBlobs() {
AssertIsOnBackgroundThread();
#ifdef DEBUG
mAllBlobsUnmapped = true;
#endif
mMappedBlobs.Clear();
}
bool Database::CloseInternal() {
AssertIsOnBackgroundThread();
if (mClosed) {
if (NS_WARN_IF(!IsInvalidated())) {
// Kill misbehaving child for sending the close message twice.
return false;
}
// Ignore harmless race when we just invalidated the database.
return true;
}
mClosed = true;
if (gConnectionPool) {
gConnectionPool->CloseDatabaseWhenIdle(Id());
}
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(gLiveDatabaseHashtable->Get(Id(), &info));
MOZ_ASSERT(info->mLiveDatabases.Contains(this));
if (info->mWaitingFactoryOp) {
info->mWaitingFactoryOp->NoteDatabaseClosed(this);
}
MaybeCloseConnection();
return true;
}
void Database::MaybeCloseConnection() {
AssertIsOnBackgroundThread();
if (!mTransactions.Count() && !mActiveMutableFileCount && IsClosed() &&
mDirectoryLock) {
nsCOMPtr<nsIRunnable> callback =
NewRunnableMethod("dom::indexedDB::Database::ConnectionClosedCallback",
this, &Database::ConnectionClosedCallback);
RefPtr<WaitForTransactionsHelper> helper =
new WaitForTransactionsHelper(Id(), callback);
helper->WaitForTransactions();
}
}
void Database::ConnectionClosedCallback() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mClosed);
MOZ_ASSERT(!mTransactions.Count());
MOZ_ASSERT(!mActiveMutableFileCount);
mDirectoryLock = nullptr;
CleanupMetadata();
UnmapAllBlobs();
if (IsInvalidated() && IsActorAlive()) {
// Step 3 and 4 of "5.2 Closing a Database":
// 1. Wait for all transactions to complete.
// 2. Fire a close event if forced flag is set, i.e., IsInvalidated() in our
// implementation.
Unused << SendCloseAfterInvalidationComplete();
}
}
void Database::CleanupMetadata() {
AssertIsOnBackgroundThread();
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(gLiveDatabaseHashtable->Get(Id(), &info));
MOZ_ALWAYS_TRUE(info->mLiveDatabases.RemoveElement(this));
if (info->mLiveDatabases.IsEmpty()) {
MOZ_ASSERT(!info->mWaitingFactoryOp ||
!info->mWaitingFactoryOp->HasBlockedDatabases());
gLiveDatabaseHashtable->Remove(Id());
}
// Match the IncreaseBusyCount in OpenDatabaseOp::EnsureDatabaseActor().
DecreaseBusyCount();
}
bool Database::VerifyRequestParams(const DatabaseRequestParams& aParams) const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != DatabaseRequestParams::T__None);
switch (aParams.type()) {
case DatabaseRequestParams::TCreateFileParams: {
if (NS_WARN_IF(mFileHandleDisabled)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const CreateFileParams& params = aParams.get_CreateFileParams();
if (NS_WARN_IF(params.name().IsEmpty())) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
default:
MOZ_CRASH("Should never get here!");
}
return true;
}
void Database::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
mActorDestroyed = true;
if (!IsInvalidated()) {
Invalidate();
}
}
PBackgroundIDBDatabaseFileParent*
Database::AllocPBackgroundIDBDatabaseFileParent(const IPCBlob& aIPCBlob) {
AssertIsOnBackgroundThread();
RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(aIPCBlob);
MOZ_ASSERT(blobImpl);
RefPtr<FileInfo> fileInfo = GetBlob(aIPCBlob);
RefPtr<DatabaseFile> actor;
if (fileInfo) {
actor = new DatabaseFile(fileInfo);
} else {
// This is a blob we haven't seen before.
fileInfo = mFileManager->GetNewFileInfo();
MOZ_ASSERT(fileInfo);
actor = new DatabaseFile(blobImpl, fileInfo);
}
MOZ_ASSERT(actor);
return actor.forget().take();
}
bool Database::DeallocPBackgroundIDBDatabaseFileParent(
PBackgroundIDBDatabaseFileParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
RefPtr<DatabaseFile> actor = dont_AddRef(static_cast<DatabaseFile*>(aActor));
return true;
}
PBackgroundIDBDatabaseRequestParent*
Database::AllocPBackgroundIDBDatabaseRequestParent(
const DatabaseRequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != DatabaseRequestParams::T__None);
#ifdef DEBUG
// Always verify parameters in DEBUG builds!
bool trustParams = false;
#else
PBackgroundParent* backgroundActor = GetBackgroundParent();
MOZ_ASSERT(backgroundActor);
bool trustParams = !BackgroundParent::IsOtherProcessActor(backgroundActor);
#endif
if (NS_WARN_IF(!trustParams && !VerifyRequestParams(aParams))) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
RefPtr<DatabaseOp> actor;
switch (aParams.type()) {
case DatabaseRequestParams::TCreateFileParams: {
actor = new CreateFileOp(this, aParams);
break;
}
default:
MOZ_CRASH("Should never get here!");
}
MOZ_ASSERT(actor);
// Transfer ownership to IPDL.
return actor.forget().take();
}
mozilla::ipc::IPCResult Database::RecvPBackgroundIDBDatabaseRequestConstructor(
PBackgroundIDBDatabaseRequestParent* aActor,
const DatabaseRequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != DatabaseRequestParams::T__None);
auto* op = static_cast<DatabaseOp*>(aActor);
op->RunImmediately();
return IPC_OK();
}
bool Database::DeallocPBackgroundIDBDatabaseRequestParent(
PBackgroundIDBDatabaseRequestParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
// Transfer ownership back from IPDL.
RefPtr<DatabaseOp> op = dont_AddRef(static_cast<DatabaseOp*>(aActor));
return true;
}
PBackgroundIDBTransactionParent* Database::AllocPBackgroundIDBTransactionParent(
const nsTArray<nsString>& aObjectStoreNames, const Mode& aMode) {
AssertIsOnBackgroundThread();
// Once a database is closed it must not try to open new transactions.
if (NS_WARN_IF(mClosed)) {
if (!mInvalidated) {
ASSERT_UNLESS_FUZZING();
}
return nullptr;
}
if (NS_WARN_IF(aObjectStoreNames.IsEmpty())) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (NS_WARN_IF(aMode != IDBTransaction::READ_ONLY &&
aMode != IDBTransaction::READ_WRITE &&
aMode != IDBTransaction::READ_WRITE_FLUSH &&
aMode != IDBTransaction::CLEANUP)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
// If this is a readwrite transaction to a chrome database make sure the child
// has write access.
if (NS_WARN_IF((aMode == IDBTransaction::READ_WRITE ||
aMode == IDBTransaction::READ_WRITE_FLUSH ||
aMode == IDBTransaction::CLEANUP) &&
mPrincipalInfo.type() == PrincipalInfo::TSystemPrincipalInfo &&
!mChromeWriteAccessAllowed)) {
return nullptr;
}
const ObjectStoreTable& objectStores = mMetadata->mObjectStores;
const uint32_t nameCount = aObjectStoreNames.Length();
if (NS_WARN_IF(nameCount > objectStores.Count())) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
FallibleTArray<RefPtr<FullObjectStoreMetadata>> fallibleObjectStores;
if (NS_WARN_IF(!fallibleObjectStores.SetCapacity(nameCount, fallible))) {
return nullptr;
}
for (uint32_t nameIndex = 0; nameIndex < nameCount; nameIndex++) {
const nsString& name = aObjectStoreNames[nameIndex];
if (nameIndex) {
// Make sure that this name is sorted properly and not a duplicate.
if (NS_WARN_IF(name <= aObjectStoreNames[nameIndex - 1])) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
}
for (auto iter = objectStores.ConstIter(); !iter.Done(); iter.Next()) {
auto value = iter.Data();
MOZ_ASSERT(iter.Key());
if (name == value->mCommonMetadata.name() && !value->mDeleted) {
if (NS_WARN_IF(!fallibleObjectStores.AppendElement(value, fallible))) {
return nullptr;
}
break;
}
}
}
nsTArray<RefPtr<FullObjectStoreMetadata>> infallibleObjectStores;
infallibleObjectStores.SwapElements(fallibleObjectStores);
RefPtr<NormalTransaction> transaction =
new NormalTransaction(this, aMode, infallibleObjectStores);
MOZ_ASSERT(infallibleObjectStores.IsEmpty());
return transaction.forget().take();
}
mozilla::ipc::IPCResult Database::RecvPBackgroundIDBTransactionConstructor(
PBackgroundIDBTransactionParent* aActor,
InfallibleTArray<nsString>&& aObjectStoreNames, const Mode& aMode) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(!aObjectStoreNames.IsEmpty());
MOZ_ASSERT(aMode == IDBTransaction::READ_ONLY ||
aMode == IDBTransaction::READ_WRITE ||
aMode == IDBTransaction::READ_WRITE_FLUSH ||
aMode == IDBTransaction::CLEANUP);
MOZ_ASSERT(!mClosed);
if (IsInvalidated()) {
// This is an expected race. We don't want the child to die here, just don't
// actually do any work.
return IPC_OK();
}
if (!gConnectionPool) {
gConnectionPool = new ConnectionPool();
}
auto* transaction = static_cast<NormalTransaction*>(aActor);
RefPtr<StartTransactionOp> startOp = new StartTransactionOp(transaction);
uint64_t transactionId = startOp->StartOnConnectionPool(
GetLoggingInfo()->Id(), mMetadata->mDatabaseId,
transaction->LoggingSerialNumber(), aObjectStoreNames,
aMode != IDBTransaction::READ_ONLY);
transaction->SetActive(transactionId);
if (NS_WARN_IF(!RegisterTransaction(transaction))) {
IDB_REPORT_INTERNAL_ERR();
transaction->Abort(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR, /* aForce */ false);
return IPC_OK();
}
return IPC_OK();
}
bool Database::DeallocPBackgroundIDBTransactionParent(
PBackgroundIDBTransactionParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
RefPtr<NormalTransaction> transaction =
dont_AddRef(static_cast<NormalTransaction*>(aActor));
return true;
}
PBackgroundIDBVersionChangeTransactionParent*
Database::AllocPBackgroundIDBVersionChangeTransactionParent(
const uint64_t& aCurrentVersion, const uint64_t& aRequestedVersion,
const int64_t& aNextObjectStoreId, const int64_t& aNextIndexId) {
MOZ_CRASH(
"PBackgroundIDBVersionChangeTransactionParent actors should be "
"constructed manually!");
}
bool Database::DeallocPBackgroundIDBVersionChangeTransactionParent(
PBackgroundIDBVersionChangeTransactionParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
RefPtr<VersionChangeTransaction> transaction =
dont_AddRef(static_cast<VersionChangeTransaction*>(aActor));
return true;
}
Database::PBackgroundMutableFileParent*
Database::AllocPBackgroundMutableFileParent(const nsString& aName,
const nsString& aType) {
MOZ_CRASH(
"PBackgroundMutableFileParent actors should be constructed "
"manually!");
}
bool Database::DeallocPBackgroundMutableFileParent(
PBackgroundMutableFileParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
// Transfer ownership back from IPDL.
RefPtr<MutableFile> mutableFile =
dont_AddRef(static_cast<MutableFile*>(aActor));
return true;
}
mozilla::ipc::IPCResult Database::RecvDeleteMe() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
IProtocol* mgr = Manager();
if (!PBackgroundIDBDatabaseParent::Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult Database::RecvBlocked() {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(mClosed)) {
return IPC_FAIL_NO_REASON(this);
}
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(gLiveDatabaseHashtable->Get(Id(), &info));
MOZ_ASSERT(info->mLiveDatabases.Contains(this));
MOZ_ASSERT(info->mWaitingFactoryOp);
info->mWaitingFactoryOp->NoteDatabaseBlocked(this);
return IPC_OK();
}
mozilla::ipc::IPCResult Database::RecvClose() {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!CloseInternal())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
void Database::StartTransactionOp::RunOnConnectionThread() {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(Transaction());
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld]: "
"Beginning database work",
"IndexedDB %s: P T[%lld]: DB Start",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId), mLoggingSerialNumber);
TransactionDatabaseOperationBase::RunOnConnectionThread();
}
nsresult Database::StartTransactionOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
Transaction()->SetActiveOnConnectionThread();
if (Transaction()->GetMode() == IDBTransaction::CLEANUP) {
nsresult rv = aConnection->DisableQuotaChecks();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (Transaction()->GetMode() != IDBTransaction::READ_ONLY) {
nsresult rv = aConnection->BeginWriteTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
nsresult Database::StartTransactionOp::SendSuccessResult() {
// We don't need to do anything here.
return NS_OK;
}
bool Database::StartTransactionOp::SendFailureResult(
nsresult /* aResultCode */) {
IDB_REPORT_INTERNAL_ERR();
// Abort the transaction.
return false;
}
void Database::StartTransactionOp::Cleanup() {
#ifdef DEBUG
// StartTransactionOp is not a normal database operation that is tied to an
// actor. Do this to make our assertions happy.
NoteActorDestroyed();
#endif
TransactionDatabaseOperationBase::Cleanup();
}
/*******************************************************************************
* TransactionBase
******************************************************************************/
TransactionBase::TransactionBase(Database* aDatabase, Mode aMode)
: mDatabase(aDatabase),
mTransactionId(0),
mDatabaseId(aDatabase->Id()),
mLoggingSerialNumber(
aDatabase->GetLoggingInfo()->NextTransactionSN(aMode)),
mActiveRequestCount(0),
mInvalidatedOnAnyThread(false),
mMode(aMode),
mHasBeenActive(false),
mHasBeenActiveOnConnectionThread(false),
mActorDestroyed(false),
mInvalidated(false),
mResultCode(NS_OK),
mCommitOrAbortReceived(false),
mCommittedOrAborted(false),
mForceAborted(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabase);
MOZ_ASSERT(mLoggingSerialNumber);
}
TransactionBase::~TransactionBase() {
MOZ_ASSERT(!mActiveRequestCount);
MOZ_ASSERT(mActorDestroyed);
MOZ_ASSERT_IF(mHasBeenActive, mCommittedOrAborted);
}
void TransactionBase::Abort(nsresult aResultCode, bool aForce) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(NS_FAILED(aResultCode));
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = aResultCode;
}
if (aForce) {
mForceAborted = true;
}
MaybeCommitOrAbort();
}
bool TransactionBase::RecvCommit() {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return false;
}
mCommitOrAbortReceived = true;
MaybeCommitOrAbort();
return true;
}
bool TransactionBase::RecvAbort(nsresult aResultCode) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(NS_SUCCEEDED(aResultCode))) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(NS_ERROR_GET_MODULE(aResultCode) !=
NS_ERROR_MODULE_DOM_INDEXEDDB)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return false;
}
mCommitOrAbortReceived = true;
Abort(aResultCode, /* aForce */ false);
return true;
}
void TransactionBase::CommitOrAbort() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mCommittedOrAborted);
mCommittedOrAborted = true;
if (!mHasBeenActive) {
return;
}
RefPtr<CommitOp> commitOp = new CommitOp(this, ClampResultCode(mResultCode));
gConnectionPool->Finish(TransactionId(), commitOp);
}
already_AddRefed<FullObjectStoreMetadata>
TransactionBase::GetMetadataForObjectStoreId(int64_t aObjectStoreId) const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aObjectStoreId);
if (!aObjectStoreId) {
return nullptr;
}
RefPtr<FullObjectStoreMetadata> metadata;
if (!mDatabase->Metadata()->mObjectStores.Get(aObjectStoreId,
getter_AddRefs(metadata)) ||
metadata->mDeleted) {
return nullptr;
}
MOZ_ASSERT(metadata->mCommonMetadata.id() == aObjectStoreId);
return metadata.forget();
}
already_AddRefed<FullIndexMetadata> TransactionBase::GetMetadataForIndexId(
FullObjectStoreMetadata* const aObjectStoreMetadata,
int64_t aIndexId) const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aIndexId);
if (!aIndexId) {
return nullptr;
}
RefPtr<FullIndexMetadata> metadata;
if (!aObjectStoreMetadata->mIndexes.Get(aIndexId, getter_AddRefs(metadata)) ||
metadata->mDeleted) {
return nullptr;
}
MOZ_ASSERT(metadata->mCommonMetadata.id() == aIndexId);
return metadata.forget();
}
void TransactionBase::NoteModifiedAutoIncrementObjectStore(
FullObjectStoreMetadata* aMetadata) {
AssertIsOnConnectionThread();
MOZ_ASSERT(aMetadata);
if (!mModifiedAutoIncrementObjectStoreMetadataArray.Contains(aMetadata)) {
mModifiedAutoIncrementObjectStoreMetadataArray.AppendElement(aMetadata);
}
}
void TransactionBase::ForgetModifiedAutoIncrementObjectStore(
FullObjectStoreMetadata* aMetadata) {
AssertIsOnConnectionThread();
MOZ_ASSERT(aMetadata);
mModifiedAutoIncrementObjectStoreMetadataArray.RemoveElement(aMetadata);
}
bool TransactionBase::VerifyRequestParams(const RequestParams& aParams) const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != RequestParams::T__None);
switch (aParams.type()) {
case RequestParams::TObjectStoreAddParams: {
const ObjectStoreAddPutParams& params =
aParams.get_ObjectStoreAddParams().commonParams();
if (NS_WARN_IF(!VerifyRequestParams(params))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStorePutParams: {
const ObjectStoreAddPutParams& params =
aParams.get_ObjectStorePutParams().commonParams();
if (NS_WARN_IF(!VerifyRequestParams(params))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreGetParams: {
const ObjectStoreGetParams& params = aParams.get_ObjectStoreGetParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.keyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreGetKeyParams: {
const ObjectStoreGetKeyParams& params =
aParams.get_ObjectStoreGetKeyParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.keyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreGetAllParams: {
const ObjectStoreGetAllParams& params =
aParams.get_ObjectStoreGetAllParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreGetAllKeysParams: {
const ObjectStoreGetAllKeysParams& params =
aParams.get_ObjectStoreGetAllKeysParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreDeleteParams: {
if (NS_WARN_IF(mMode != IDBTransaction::READ_WRITE &&
mMode != IDBTransaction::READ_WRITE_FLUSH &&
mMode != IDBTransaction::CLEANUP &&
mMode != IDBTransaction::VERSION_CHANGE)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const ObjectStoreDeleteParams& params =
aParams.get_ObjectStoreDeleteParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.keyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreClearParams: {
if (NS_WARN_IF(mMode != IDBTransaction::READ_WRITE &&
mMode != IDBTransaction::READ_WRITE_FLUSH &&
mMode != IDBTransaction::CLEANUP &&
mMode != IDBTransaction::VERSION_CHANGE)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const ObjectStoreClearParams& params =
aParams.get_ObjectStoreClearParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TObjectStoreCountParams: {
const ObjectStoreCountParams& params =
aParams.get_ObjectStoreCountParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TIndexGetParams: {
const IndexGetParams& params = aParams.get_IndexGetParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const RefPtr<FullIndexMetadata> indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.keyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TIndexGetKeyParams: {
const IndexGetKeyParams& params = aParams.get_IndexGetKeyParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const RefPtr<FullIndexMetadata> indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.keyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TIndexGetAllParams: {
const IndexGetAllParams& params = aParams.get_IndexGetAllParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const RefPtr<FullIndexMetadata> indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TIndexGetAllKeysParams: {
const IndexGetAllKeysParams& params = aParams.get_IndexGetAllKeysParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const RefPtr<FullIndexMetadata> indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case RequestParams::TIndexCountParams: {
const IndexCountParams& params = aParams.get_IndexCountParams();
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const RefPtr<FullIndexMetadata> indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
default:
MOZ_CRASH("Should never get here!");
}
return true;
}
bool TransactionBase::VerifyRequestParams(
const SerializedKeyRange& aParams) const {
AssertIsOnBackgroundThread();
// XXX Check more here?
if (aParams.isOnly()) {
if (NS_WARN_IF(aParams.lower().IsUnset())) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!aParams.upper().IsUnset())) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(aParams.lowerOpen())) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(aParams.upperOpen())) {
ASSERT_UNLESS_FUZZING();
return false;
}
} else if (NS_WARN_IF(aParams.lower().IsUnset() &&
aParams.upper().IsUnset())) {
ASSERT_UNLESS_FUZZING();
return false;
}
return true;
}
bool TransactionBase::VerifyRequestParams(
const ObjectStoreAddPutParams& aParams) const {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(mMode != IDBTransaction::READ_WRITE &&
mMode != IDBTransaction::READ_WRITE_FLUSH &&
mMode != IDBTransaction::VERSION_CHANGE)) {
ASSERT_UNLESS_FUZZING();
return false;
}
RefPtr<FullObjectStoreMetadata> objMetadata =
GetMetadataForObjectStoreId(aParams.objectStoreId());
if (NS_WARN_IF(!objMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!aParams.cloneInfo().data().data.Size())) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (objMetadata->mCommonMetadata.autoIncrement() &&
objMetadata->mCommonMetadata.keyPath().IsValid() &&
aParams.key().IsUnset()) {
const SerializedStructuredCloneWriteInfo cloneInfo = aParams.cloneInfo();
if (NS_WARN_IF(!cloneInfo.offsetToKeyProp())) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(cloneInfo.data().data.Size() < sizeof(uint64_t))) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(cloneInfo.offsetToKeyProp() >
(cloneInfo.data().data.Size() - sizeof(uint64_t)))) {
ASSERT_UNLESS_FUZZING();
return false;
}
} else if (NS_WARN_IF(aParams.cloneInfo().offsetToKeyProp())) {
ASSERT_UNLESS_FUZZING();
return false;
}
const nsTArray<IndexUpdateInfo>& updates = aParams.indexUpdateInfos();
for (uint32_t index = 0; index < updates.Length(); index++) {
RefPtr<FullIndexMetadata> indexMetadata =
GetMetadataForIndexId(objMetadata, updates[index].indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(updates[index].value().IsUnset())) {
ASSERT_UNLESS_FUZZING();
return false;
}
MOZ_ASSERT(!updates[index].value().GetBuffer().IsEmpty());
}
const nsTArray<FileAddInfo>& fileAddInfos = aParams.fileAddInfos();
for (uint32_t index = 0; index < fileAddInfos.Length(); index++) {
const FileAddInfo& fileAddInfo = fileAddInfos[index];
const DatabaseOrMutableFile& file = fileAddInfo.file();
MOZ_ASSERT(file.type() != DatabaseOrMutableFile::T__None);
switch (fileAddInfo.type()) {
case StructuredCloneFile::eBlob:
if (NS_WARN_IF(
file.type() !=
DatabaseOrMutableFile::TPBackgroundIDBDatabaseFileParent)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!file.get_PBackgroundIDBDatabaseFileParent())) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
case StructuredCloneFile::eMutableFile: {
if (NS_WARN_IF(file.type() !=
DatabaseOrMutableFile::TPBackgroundMutableFileParent)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(mDatabase->IsFileHandleDisabled())) {
ASSERT_UNLESS_FUZZING();
return false;
}
auto mutableFile =
static_cast<MutableFile*>(file.get_PBackgroundMutableFileParent());
if (NS_WARN_IF(!mutableFile)) {
ASSERT_UNLESS_FUZZING();
return false;
}
Database* database = mutableFile->GetDatabase();
if (NS_WARN_IF(!database)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(database->Id() != mDatabase->Id())) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
}
case StructuredCloneFile::eStructuredClone:
ASSERT_UNLESS_FUZZING();
return false;
case StructuredCloneFile::eWasmBytecode:
case StructuredCloneFile::eWasmCompiled:
if (NS_WARN_IF(
file.type() !=
DatabaseOrMutableFile::TPBackgroundIDBDatabaseFileParent)) {
ASSERT_UNLESS_FUZZING();
return false;
}
if (NS_WARN_IF(!file.get_PBackgroundIDBDatabaseFileParent())) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
case StructuredCloneFile::eEndGuard:
ASSERT_UNLESS_FUZZING();
return false;
default:
MOZ_CRASH("Should never get here!");
}
}
return true;
}
bool TransactionBase::VerifyRequestParams(
const OptionalKeyRange& aParams) const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != OptionalKeyRange::T__None);
switch (aParams.type()) {
case OptionalKeyRange::TSerializedKeyRange:
if (NS_WARN_IF(!VerifyRequestParams(aParams.get_SerializedKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
case OptionalKeyRange::Tvoid_t:
break;
default:
MOZ_CRASH("Should never get here!");
}
return true;
}
void TransactionBase::NoteActiveRequest() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mActiveRequestCount < UINT64_MAX);
mActiveRequestCount++;
}
void TransactionBase::NoteFinishedRequest() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mActiveRequestCount);
mActiveRequestCount--;
MaybeCommitOrAbort();
}
void TransactionBase::Invalidate() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mInvalidated == mInvalidatedOnAnyThread);
if (!mInvalidated) {
mInvalidated = true;
mInvalidatedOnAnyThread = true;
Abort(NS_ERROR_DOM_INDEXEDDB_ABORT_ERR, /* aForce */ false);
}
}
PBackgroundIDBRequestParent* TransactionBase::AllocRequest(
const RequestParams& aParams, bool aTrustParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != RequestParams::T__None);
#ifdef DEBUG
// Always verify parameters in DEBUG builds!
aTrustParams = false;
#endif
if (!aTrustParams && NS_WARN_IF(!VerifyRequestParams(aParams))) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
RefPtr<NormalTransactionOp> actor;
switch (aParams.type()) {
case RequestParams::TObjectStoreAddParams:
case RequestParams::TObjectStorePutParams:
actor = new ObjectStoreAddOrPutRequestOp(this, aParams);
break;
case RequestParams::TObjectStoreGetParams:
actor = new ObjectStoreGetRequestOp(this, aParams, /* aGetAll */ false);
break;
case RequestParams::TObjectStoreGetAllParams:
actor = new ObjectStoreGetRequestOp(this, aParams, /* aGetAll */ true);
break;
case RequestParams::TObjectStoreGetKeyParams:
actor =
new ObjectStoreGetKeyRequestOp(this, aParams, /* aGetAll */ false);
break;
case RequestParams::TObjectStoreGetAllKeysParams:
actor = new ObjectStoreGetKeyRequestOp(this, aParams, /* aGetAll */ true);
break;
case RequestParams::TObjectStoreDeleteParams:
actor = new ObjectStoreDeleteRequestOp(
this, aParams.get_ObjectStoreDeleteParams());
break;
case RequestParams::TObjectStoreClearParams:
actor = new ObjectStoreClearRequestOp(
this, aParams.get_ObjectStoreClearParams());
break;
case RequestParams::TObjectStoreCountParams:
actor = new ObjectStoreCountRequestOp(
this, aParams.get_ObjectStoreCountParams());
break;
case RequestParams::TIndexGetParams:
actor = new IndexGetRequestOp(this, aParams, /* aGetAll */ false);
break;
case RequestParams::TIndexGetKeyParams:
actor = new IndexGetKeyRequestOp(this, aParams, /* aGetAll */ false);
break;
case RequestParams::TIndexGetAllParams:
actor = new IndexGetRequestOp(this, aParams, /* aGetAll */ true);
break;
case RequestParams::TIndexGetAllKeysParams:
actor = new IndexGetKeyRequestOp(this, aParams, /* aGetAll */ true);
break;
case RequestParams::TIndexCountParams:
actor = new IndexCountRequestOp(this, aParams);
break;
default:
MOZ_CRASH("Should never get here!");
}
MOZ_ASSERT(actor);
// Transfer ownership to IPDL.
return actor.forget().take();
}
bool TransactionBase::StartRequest(PBackgroundIDBRequestParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
auto* op = static_cast<NormalTransactionOp*>(aActor);
if (NS_WARN_IF(!op->Init(this))) {
op->Cleanup();
return false;
}
op->DispatchToConnectionPool();
return true;
}
bool TransactionBase::DeallocRequest(PBackgroundIDBRequestParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
// Transfer ownership back from IPDL.
RefPtr<NormalTransactionOp> actor =
dont_AddRef(static_cast<NormalTransactionOp*>(aActor));
return true;
}
PBackgroundIDBCursorParent* TransactionBase::AllocCursor(
const OpenCursorParams& aParams, bool aTrustParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != OpenCursorParams::T__None);
#ifdef DEBUG
// Always verify parameters in DEBUG builds!
aTrustParams = false;
#endif
OpenCursorParams::Type type = aParams.type();
RefPtr<FullObjectStoreMetadata> objectStoreMetadata;
RefPtr<FullIndexMetadata> indexMetadata;
Cursor::Direction direction;
switch (type) {
case OpenCursorParams::TObjectStoreOpenCursorParams: {
const ObjectStoreOpenCursorParams& params =
aParams.get_ObjectStoreOpenCursorParams();
objectStoreMetadata = GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (aTrustParams &&
NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
direction = params.direction();
break;
}
case OpenCursorParams::TObjectStoreOpenKeyCursorParams: {
const ObjectStoreOpenKeyCursorParams& params =
aParams.get_ObjectStoreOpenKeyCursorParams();
objectStoreMetadata = GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (aTrustParams &&
NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
direction = params.direction();
break;
}
case OpenCursorParams::TIndexOpenCursorParams: {
const IndexOpenCursorParams& params = aParams.get_IndexOpenCursorParams();
objectStoreMetadata = GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (aTrustParams &&
NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
direction = params.direction();
break;
}
case OpenCursorParams::TIndexOpenKeyCursorParams: {
const IndexOpenKeyCursorParams& params =
aParams.get_IndexOpenKeyCursorParams();
objectStoreMetadata = GetMetadataForObjectStoreId(params.objectStoreId());
if (NS_WARN_IF(!objectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
indexMetadata =
GetMetadataForIndexId(objectStoreMetadata, params.indexId());
if (NS_WARN_IF(!indexMetadata)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
if (aTrustParams &&
NS_WARN_IF(!VerifyRequestParams(params.optionalKeyRange()))) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
direction = params.direction();
break;
}
default:
MOZ_CRASH("Should never get here!");
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return nullptr;
}
RefPtr<Cursor> actor =
new Cursor(this, type, objectStoreMetadata, indexMetadata, direction);
// Transfer ownership to IPDL.
return actor.forget().take();
}
bool TransactionBase::StartCursor(PBackgroundIDBCursorParent* aActor,
const OpenCursorParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != OpenCursorParams::T__None);
auto* op = static_cast<Cursor*>(aActor);
if (NS_WARN_IF(!op->Start(aParams))) {
return false;
}
return true;
}
bool TransactionBase::DeallocCursor(PBackgroundIDBCursorParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
// Transfer ownership back from IPDL.
RefPtr<Cursor> actor = dont_AddRef(static_cast<Cursor*>(aActor));
return true;
}
/*******************************************************************************
* NormalTransaction
******************************************************************************/
NormalTransaction::NormalTransaction(
Database* aDatabase, TransactionBase::Mode aMode,
nsTArray<RefPtr<FullObjectStoreMetadata>>& aObjectStores)
: TransactionBase(aDatabase, aMode) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!aObjectStores.IsEmpty());
mObjectStores.SwapElements(aObjectStores);
}
bool NormalTransaction::IsSameProcessActor() {
AssertIsOnBackgroundThread();
PBackgroundParent* actor = Manager()->Manager()->Manager();
MOZ_ASSERT(actor);
return !BackgroundParent::IsOtherProcessActor(actor);
}
void NormalTransaction::SendCompleteNotification(nsresult aResult) {
AssertIsOnBackgroundThread();
if (!IsActorDestroyed()) {
Unused << SendComplete(aResult);
}
}
void NormalTransaction::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
NoteActorDestroyed();
if (!mCommittedOrAborted) {
if (NS_SUCCEEDED(mResultCode)) {
IDB_REPORT_INTERNAL_ERR();
mResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mForceAborted = true;
MaybeCommitOrAbort();
}
}
mozilla::ipc::IPCResult NormalTransaction::RecvDeleteMe() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!IsActorDestroyed());
IProtocol* mgr = Manager();
if (!PBackgroundIDBTransactionParent::Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult NormalTransaction::RecvCommit() {
AssertIsOnBackgroundThread();
if (!TransactionBase::RecvCommit()) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult NormalTransaction::RecvAbort(
const nsresult& aResultCode) {
AssertIsOnBackgroundThread();
if (!TransactionBase::RecvAbort(aResultCode)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
PBackgroundIDBRequestParent*
NormalTransaction::AllocPBackgroundIDBRequestParent(
const RequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != RequestParams::T__None);
return AllocRequest(aParams, IsSameProcessActor());
}
mozilla::ipc::IPCResult NormalTransaction::RecvPBackgroundIDBRequestConstructor(
PBackgroundIDBRequestParent* aActor, const RequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != RequestParams::T__None);
if (!StartRequest(aActor)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
bool NormalTransaction::DeallocPBackgroundIDBRequestParent(
PBackgroundIDBRequestParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
return DeallocRequest(aActor);
}
PBackgroundIDBCursorParent* NormalTransaction::AllocPBackgroundIDBCursorParent(
const OpenCursorParams& aParams) {
AssertIsOnBackgroundThread();
return AllocCursor(aParams, IsSameProcessActor());
}
mozilla::ipc::IPCResult NormalTransaction::RecvPBackgroundIDBCursorConstructor(
PBackgroundIDBCursorParent* aActor, const OpenCursorParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != OpenCursorParams::T__None);
if (!StartCursor(aActor, aParams)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
bool NormalTransaction::DeallocPBackgroundIDBCursorParent(
PBackgroundIDBCursorParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
return DeallocCursor(aActor);
}
/*******************************************************************************
* VersionChangeTransaction
******************************************************************************/
VersionChangeTransaction::VersionChangeTransaction(
OpenDatabaseOp* aOpenDatabaseOp)
: TransactionBase(aOpenDatabaseOp->mDatabase,
IDBTransaction::VERSION_CHANGE),
mOpenDatabaseOp(aOpenDatabaseOp),
mActorWasAlive(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aOpenDatabaseOp);
}
VersionChangeTransaction::~VersionChangeTransaction() {
#ifdef DEBUG
// Silence the base class' destructor assertion if we never made this actor
// live.
FakeActorDestroyed();
#endif
}
bool VersionChangeTransaction::IsSameProcessActor() {
AssertIsOnBackgroundThread();
PBackgroundParent* actor = Manager()->Manager()->Manager();
MOZ_ASSERT(actor);
return !BackgroundParent::IsOtherProcessActor(actor);
}
void VersionChangeTransaction::SetActorAlive() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorWasAlive);
MOZ_ASSERT(!IsActorDestroyed());
mActorWasAlive = true;
// This reference will be absorbed by IPDL and released when the actor is
// destroyed.
AddRef();
}
bool VersionChangeTransaction::CopyDatabaseMetadata() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mOldMetadata);
const RefPtr<FullDatabaseMetadata> origMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(origMetadata);
RefPtr<FullDatabaseMetadata> newMetadata = origMetadata->Duplicate();
if (NS_WARN_IF(!newMetadata)) {
return false;
}
// Replace the live metadata with the new mutable copy.
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(
gLiveDatabaseHashtable->Get(origMetadata->mDatabaseId, &info));
MOZ_ASSERT(!info->mLiveDatabases.IsEmpty());
MOZ_ASSERT(info->mMetadata == origMetadata);
mOldMetadata = info->mMetadata.forget();
info->mMetadata.swap(newMetadata);
// Replace metadata pointers for all live databases.
for (uint32_t count = info->mLiveDatabases.Length(), index = 0; index < count;
index++) {
info->mLiveDatabases[index]->mMetadata = info->mMetadata;
}
return true;
}
void VersionChangeTransaction::UpdateMetadata(nsresult aResult) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(GetDatabase());
MOZ_ASSERT(mOpenDatabaseOp);
MOZ_ASSERT(!!mActorWasAlive == !!mOpenDatabaseOp->mDatabase);
MOZ_ASSERT_IF(mActorWasAlive, !mOpenDatabaseOp->mDatabaseId.IsEmpty());
if (IsActorDestroyed() || !mActorWasAlive) {
return;
}
RefPtr<FullDatabaseMetadata> oldMetadata;
mOldMetadata.swap(oldMetadata);
DatabaseActorInfo* info;
if (!gLiveDatabaseHashtable->Get(oldMetadata->mDatabaseId, &info)) {
return;
}
MOZ_ASSERT(!info->mLiveDatabases.IsEmpty());
if (NS_SUCCEEDED(aResult)) {
// Remove all deleted objectStores and indexes, then mark immutable.
for (auto objectStoreIter = info->mMetadata->mObjectStores.Iter();
!objectStoreIter.Done(); objectStoreIter.Next()) {
MOZ_ASSERT(objectStoreIter.Key());
RefPtr<FullObjectStoreMetadata>& metadata = objectStoreIter.Data();
MOZ_ASSERT(metadata);
if (metadata->mDeleted) {
objectStoreIter.Remove();
continue;
}
for (auto indexIter = metadata->mIndexes.Iter(); !indexIter.Done();
indexIter.Next()) {
MOZ_ASSERT(indexIter.Key());
RefPtr<FullIndexMetadata>& index = indexIter.Data();
MOZ_ASSERT(index);
if (index->mDeleted) {
indexIter.Remove();
}
}
#ifdef DEBUG
metadata->mIndexes.MarkImmutable();
#endif
}
#ifdef DEBUG
info->mMetadata->mObjectStores.MarkImmutable();
#endif
} else {
// Replace metadata pointers for all live databases.
info->mMetadata = oldMetadata.forget();
for (uint32_t count = info->mLiveDatabases.Length(), index = 0;
index < count; index++) {
info->mLiveDatabases[index]->mMetadata = info->mMetadata;
}
}
}
void VersionChangeTransaction::SendCompleteNotification(nsresult aResult) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mOpenDatabaseOp);
MOZ_ASSERT_IF(!mActorWasAlive, NS_FAILED(mOpenDatabaseOp->mResultCode));
MOZ_ASSERT_IF(!mActorWasAlive, mOpenDatabaseOp->mState >
OpenDatabaseOp::State::SendingResults);
RefPtr<OpenDatabaseOp> openDatabaseOp;
mOpenDatabaseOp.swap(openDatabaseOp);
if (!mActorWasAlive) {
return;
}
if (NS_FAILED(aResult) && NS_SUCCEEDED(openDatabaseOp->mResultCode)) {
// 3.3.1 Opening a database:
// "If the upgrade transaction was aborted, run the steps for closing a
// database connection with connection, create and return a new AbortError
// exception and abort these steps."
openDatabaseOp->mResultCode = NS_ERROR_DOM_INDEXEDDB_ABORT_ERR;
}
openDatabaseOp->mState = OpenDatabaseOp::State::SendingResults;
if (!IsActorDestroyed()) {
Unused << SendComplete(aResult);
}
MOZ_ALWAYS_SUCCEEDS(openDatabaseOp->Run());
}
void VersionChangeTransaction::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
NoteActorDestroyed();
if (!mCommittedOrAborted) {
if (NS_SUCCEEDED(mResultCode)) {
IDB_REPORT_INTERNAL_ERR();
mResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mForceAborted = true;
MaybeCommitOrAbort();
}
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvDeleteMe() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!IsActorDestroyed());
IProtocol* mgr = Manager();
if (!PBackgroundIDBVersionChangeTransactionParent::Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvCommit() {
AssertIsOnBackgroundThread();
if (!TransactionBase::RecvCommit()) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvAbort(
const nsresult& aResultCode) {
AssertIsOnBackgroundThread();
if (!TransactionBase::RecvAbort(aResultCode)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvCreateObjectStore(
const ObjectStoreMetadata& aMetadata) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!aMetadata.id())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
const RefPtr<FullDatabaseMetadata> dbMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(dbMetadata);
if (NS_WARN_IF(aMetadata.id() != dbMetadata->mNextObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
auto* foundMetadata = MetadataNameOrIdMatcher<FullObjectStoreMetadata>::Match(
dbMetadata->mObjectStores, aMetadata.id(), aMetadata.name());
if (NS_WARN_IF(foundMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullObjectStoreMetadata> newMetadata = new FullObjectStoreMetadata();
newMetadata->mCommonMetadata = aMetadata;
newMetadata->mNextAutoIncrementId = aMetadata.autoIncrement() ? 1 : 0;
newMetadata->mCommittedAutoIncrementId = newMetadata->mNextAutoIncrementId;
if (NS_WARN_IF(!dbMetadata->mObjectStores.Put(aMetadata.id(), newMetadata,
fallible))) {
return IPC_FAIL_NO_REASON(this);
}
dbMetadata->mNextObjectStoreId++;
RefPtr<CreateObjectStoreOp> op = new CreateObjectStoreOp(this, aMetadata);
if (NS_WARN_IF(!op->Init(this))) {
op->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
op->DispatchToConnectionPool();
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvDeleteObjectStore(
const int64_t& aObjectStoreId) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!aObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
const RefPtr<FullDatabaseMetadata> dbMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(dbMetadata);
MOZ_ASSERT(dbMetadata->mNextObjectStoreId > 0);
if (NS_WARN_IF(aObjectStoreId >= dbMetadata->mNextObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullObjectStoreMetadata> foundMetadata =
GetMetadataForObjectStoreId(aObjectStoreId);
if (NS_WARN_IF(!foundMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
foundMetadata->mDeleted = true;
bool isLastObjectStore = true;
DebugOnly<bool> foundTargetId = false;
for (auto iter = dbMetadata->mObjectStores.Iter(); !iter.Done();
iter.Next()) {
if (uint64_t(aObjectStoreId) == iter.Key()) {
foundTargetId = true;
} else if (!iter.UserData()->mDeleted) {
isLastObjectStore = false;
break;
}
}
MOZ_ASSERT_IF(isLastObjectStore, foundTargetId);
RefPtr<DeleteObjectStoreOp> op =
new DeleteObjectStoreOp(this, foundMetadata, isLastObjectStore);
if (NS_WARN_IF(!op->Init(this))) {
op->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
op->DispatchToConnectionPool();
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvRenameObjectStore(
const int64_t& aObjectStoreId, const nsString& aName) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!aObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
const RefPtr<FullDatabaseMetadata> dbMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(dbMetadata);
MOZ_ASSERT(dbMetadata->mNextObjectStoreId > 0);
if (NS_WARN_IF(aObjectStoreId >= dbMetadata->mNextObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullObjectStoreMetadata> foundMetadata =
GetMetadataForObjectStoreId(aObjectStoreId);
if (NS_WARN_IF(!foundMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
foundMetadata->mCommonMetadata.name() = aName;
RefPtr<RenameObjectStoreOp> renameOp =
new RenameObjectStoreOp(this, foundMetadata);
if (NS_WARN_IF(!renameOp->Init(this))) {
renameOp->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
renameOp->DispatchToConnectionPool();
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvCreateIndex(
const int64_t& aObjectStoreId, const IndexMetadata& aMetadata) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!aObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(!aMetadata.id())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
const RefPtr<FullDatabaseMetadata> dbMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(dbMetadata);
if (NS_WARN_IF(aMetadata.id() != dbMetadata->mNextIndexId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullObjectStoreMetadata> foundObjectStoreMetadata =
GetMetadataForObjectStoreId(aObjectStoreId);
if (NS_WARN_IF(!foundObjectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullIndexMetadata> foundIndexMetadata =
MetadataNameOrIdMatcher<FullIndexMetadata>::Match(
foundObjectStoreMetadata->mIndexes, aMetadata.id(), aMetadata.name());
if (NS_WARN_IF(foundIndexMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullIndexMetadata> newMetadata = new FullIndexMetadata();
newMetadata->mCommonMetadata = aMetadata;
if (NS_WARN_IF(!foundObjectStoreMetadata->mIndexes.Put(
aMetadata.id(), newMetadata, fallible))) {
return IPC_FAIL_NO_REASON(this);
}
dbMetadata->mNextIndexId++;
RefPtr<CreateIndexOp> op = new CreateIndexOp(this, aObjectStoreId, aMetadata);
if (NS_WARN_IF(!op->Init(this))) {
op->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
op->DispatchToConnectionPool();
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvDeleteIndex(
const int64_t& aObjectStoreId, const int64_t& aIndexId) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!aObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(!aIndexId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
const RefPtr<FullDatabaseMetadata> dbMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(dbMetadata);
MOZ_ASSERT(dbMetadata->mNextObjectStoreId > 0);
MOZ_ASSERT(dbMetadata->mNextIndexId > 0);
if (NS_WARN_IF(aObjectStoreId >= dbMetadata->mNextObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(aIndexId >= dbMetadata->mNextIndexId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullObjectStoreMetadata> foundObjectStoreMetadata =
GetMetadataForObjectStoreId(aObjectStoreId);
if (NS_WARN_IF(!foundObjectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullIndexMetadata> foundIndexMetadata =
GetMetadataForIndexId(foundObjectStoreMetadata, aIndexId);
if (NS_WARN_IF(!foundIndexMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
foundIndexMetadata->mDeleted = true;
bool isLastIndex = true;
DebugOnly<bool> foundTargetId = false;
for (auto iter = foundObjectStoreMetadata->mIndexes.ConstIter(); !iter.Done();
iter.Next()) {
if (uint64_t(aIndexId) == iter.Key()) {
foundTargetId = true;
} else if (!iter.UserData()->mDeleted) {
isLastIndex = false;
break;
}
}
MOZ_ASSERT_IF(isLastIndex, foundTargetId);
RefPtr<DeleteIndexOp> op = new DeleteIndexOp(
this, aObjectStoreId, aIndexId,
foundIndexMetadata->mCommonMetadata.unique(), isLastIndex);
if (NS_WARN_IF(!op->Init(this))) {
op->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
op->DispatchToConnectionPool();
return IPC_OK();
}
mozilla::ipc::IPCResult VersionChangeTransaction::RecvRenameIndex(
const int64_t& aObjectStoreId, const int64_t& aIndexId,
const nsString& aName) {
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!aObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(!aIndexId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
const RefPtr<FullDatabaseMetadata> dbMetadata = GetDatabase()->Metadata();
MOZ_ASSERT(dbMetadata);
MOZ_ASSERT(dbMetadata->mNextObjectStoreId > 0);
MOZ_ASSERT(dbMetadata->mNextIndexId > 0);
if (NS_WARN_IF(aObjectStoreId >= dbMetadata->mNextObjectStoreId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(aIndexId >= dbMetadata->mNextIndexId)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullObjectStoreMetadata> foundObjectStoreMetadata =
GetMetadataForObjectStoreId(aObjectStoreId);
if (NS_WARN_IF(!foundObjectStoreMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<FullIndexMetadata> foundIndexMetadata =
GetMetadataForIndexId(foundObjectStoreMetadata, aIndexId);
if (NS_WARN_IF(!foundIndexMetadata)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
foundIndexMetadata->mCommonMetadata.name() = aName;
RefPtr<RenameIndexOp> renameOp =
new RenameIndexOp(this, foundIndexMetadata, aObjectStoreId);
if (NS_WARN_IF(!renameOp->Init(this))) {
renameOp->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
renameOp->DispatchToConnectionPool();
return IPC_OK();
}
PBackgroundIDBRequestParent*
VersionChangeTransaction::AllocPBackgroundIDBRequestParent(
const RequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != RequestParams::T__None);
return AllocRequest(aParams, IsSameProcessActor());
}
mozilla::ipc::IPCResult
VersionChangeTransaction::RecvPBackgroundIDBRequestConstructor(
PBackgroundIDBRequestParent* aActor, const RequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != RequestParams::T__None);
if (!StartRequest(aActor)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
bool VersionChangeTransaction::DeallocPBackgroundIDBRequestParent(
PBackgroundIDBRequestParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
return DeallocRequest(aActor);
}
PBackgroundIDBCursorParent*
VersionChangeTransaction::AllocPBackgroundIDBCursorParent(
const OpenCursorParams& aParams) {
AssertIsOnBackgroundThread();
return AllocCursor(aParams, IsSameProcessActor());
}
mozilla::ipc::IPCResult
VersionChangeTransaction::RecvPBackgroundIDBCursorConstructor(
PBackgroundIDBCursorParent* aActor, const OpenCursorParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aParams.type() != OpenCursorParams::T__None);
if (!StartCursor(aActor, aParams)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
bool VersionChangeTransaction::DeallocPBackgroundIDBCursorParent(
PBackgroundIDBCursorParent* aActor) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aActor);
return DeallocCursor(aActor);
}
/*******************************************************************************
* Cursor
******************************************************************************/
Cursor::Cursor(TransactionBase* aTransaction, Type aType,
FullObjectStoreMetadata* aObjectStoreMetadata,
FullIndexMetadata* aIndexMetadata, Direction aDirection)
: mTransaction(aTransaction),
mBackgroundParent(nullptr),
mObjectStoreMetadata(aObjectStoreMetadata),
mIndexMetadata(aIndexMetadata),
mObjectStoreId(aObjectStoreMetadata->mCommonMetadata.id()),
mIndexId(aIndexMetadata ? aIndexMetadata->mCommonMetadata.id() : 0),
mCurrentlyRunningOp(nullptr),
mType(aType),
mDirection(aDirection),
mUniqueIndex(aIndexMetadata ? aIndexMetadata->mCommonMetadata.unique()
: false),
mIsSameProcessActor(!BackgroundParent::IsOtherProcessActor(
aTransaction->GetBackgroundParent())),
mActorDestroyed(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(aType != OpenCursorParams::T__None);
MOZ_ASSERT(aObjectStoreMetadata);
MOZ_ASSERT_IF(aType == OpenCursorParams::TIndexOpenCursorParams ||
aType == OpenCursorParams::TIndexOpenKeyCursorParams,
aIndexMetadata);
if (mType == OpenCursorParams::TObjectStoreOpenCursorParams ||
mType == OpenCursorParams::TIndexOpenCursorParams) {
mDatabase = aTransaction->GetDatabase();
MOZ_ASSERT(mDatabase);
mFileManager = mDatabase->GetFileManager();
MOZ_ASSERT(mFileManager);
mBackgroundParent = aTransaction->GetBackgroundParent();
MOZ_ASSERT(mBackgroundParent);
}
if (aIndexMetadata) {
mLocale = aIndexMetadata->mCommonMetadata.locale();
}
static_assert(
OpenCursorParams::T__None == 0 && OpenCursorParams::T__Last == 4,
"Lots of code here assumes only four types of cursors!");
}
bool Cursor::VerifyRequestParams(const CursorRequestParams& aParams) const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != CursorRequestParams::T__None);
MOZ_ASSERT(mObjectStoreMetadata);
MOZ_ASSERT_IF(mType == OpenCursorParams::TIndexOpenCursorParams ||
mType == OpenCursorParams::TIndexOpenKeyCursorParams,
mIndexMetadata);
#ifdef DEBUG
{
RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
mTransaction->GetMetadataForObjectStoreId(mObjectStoreId);
if (objectStoreMetadata) {
MOZ_ASSERT(objectStoreMetadata == mObjectStoreMetadata);
} else {
MOZ_ASSERT(mObjectStoreMetadata->mDeleted);
}
if (objectStoreMetadata &&
(mType == OpenCursorParams::TIndexOpenCursorParams ||
mType == OpenCursorParams::TIndexOpenKeyCursorParams)) {
RefPtr<FullIndexMetadata> indexMetadata =
mTransaction->GetMetadataForIndexId(objectStoreMetadata, mIndexId);
if (indexMetadata) {
MOZ_ASSERT(indexMetadata == mIndexMetadata);
} else {
MOZ_ASSERT(mIndexMetadata->mDeleted);
}
}
}
#endif
if (NS_WARN_IF(mObjectStoreMetadata->mDeleted) ||
(mIndexMetadata && NS_WARN_IF(mIndexMetadata->mDeleted))) {
ASSERT_UNLESS_FUZZING();
return false;
}
const Key& sortKey = IsLocaleAware() ? mSortKey : mKey;
switch (aParams.type()) {
case CursorRequestParams::TContinueParams: {
const Key& key = aParams.get_ContinueParams().key();
if (!key.IsUnset()) {
switch (mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE:
if (NS_WARN_IF(key <= sortKey)) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
case IDBCursor::PREV:
case IDBCursor::PREV_UNIQUE:
if (NS_WARN_IF(key >= sortKey)) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
default:
MOZ_CRASH("Should never get here!");
}
}
break;
}
case CursorRequestParams::TContinuePrimaryKeyParams: {
const Key& key = aParams.get_ContinuePrimaryKeyParams().key();
const Key& primaryKey =
aParams.get_ContinuePrimaryKeyParams().primaryKey();
MOZ_ASSERT(!key.IsUnset());
MOZ_ASSERT(!primaryKey.IsUnset());
switch (mDirection) {
case IDBCursor::NEXT:
if (NS_WARN_IF(key < sortKey ||
(key == sortKey && primaryKey <= mObjectKey))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
case IDBCursor::PREV:
if (NS_WARN_IF(key > sortKey ||
(key == sortKey && primaryKey >= mObjectKey))) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
default:
MOZ_CRASH("Should never get here!");
}
break;
}
case CursorRequestParams::TAdvanceParams:
if (NS_WARN_IF(!aParams.get_AdvanceParams().count())) {
ASSERT_UNLESS_FUZZING();
return false;
}
break;
default:
MOZ_CRASH("Should never get here!");
}
return true;
}
bool Cursor::Start(const OpenCursorParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() == mType);
MOZ_ASSERT(!mActorDestroyed);
if (NS_WARN_IF(mCurrentlyRunningOp)) {
ASSERT_UNLESS_FUZZING();
return false;
}
const OptionalKeyRange& optionalKeyRange =
mType == OpenCursorParams::TObjectStoreOpenCursorParams
? aParams.get_ObjectStoreOpenCursorParams().optionalKeyRange()
: mType == OpenCursorParams::TObjectStoreOpenKeyCursorParams
? aParams.get_ObjectStoreOpenKeyCursorParams()
.optionalKeyRange()
: mType == OpenCursorParams::TIndexOpenCursorParams
? aParams.get_IndexOpenCursorParams().optionalKeyRange()
: aParams.get_IndexOpenKeyCursorParams()
.optionalKeyRange();
RefPtr<OpenOp> openOp = new OpenOp(this, optionalKeyRange);
if (NS_WARN_IF(!openOp->Init(mTransaction))) {
openOp->Cleanup();
return false;
}
openOp->DispatchToConnectionPool();
mCurrentlyRunningOp = openOp;
return true;
}
void Cursor::SendResponseInternal(
CursorResponse& aResponse,
const nsTArray<FallibleTArray<StructuredCloneFile>>& aFiles) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aResponse.type() != CursorResponse::T__None);
MOZ_ASSERT_IF(aResponse.type() == CursorResponse::Tnsresult,
NS_FAILED(aResponse.get_nsresult()));
MOZ_ASSERT_IF(aResponse.type() == CursorResponse::Tnsresult,
NS_ERROR_GET_MODULE(aResponse.get_nsresult()) ==
NS_ERROR_MODULE_DOM_INDEXEDDB);
MOZ_ASSERT_IF(aResponse.type() == CursorResponse::Tvoid_t, mKey.IsUnset());
MOZ_ASSERT_IF(aResponse.type() == CursorResponse::Tvoid_t,
mRangeKey.IsUnset());
MOZ_ASSERT_IF(aResponse.type() == CursorResponse::Tvoid_t,
mObjectKey.IsUnset());
MOZ_ASSERT_IF(
aResponse.type() == CursorResponse::Tnsresult ||
aResponse.type() == CursorResponse::Tvoid_t ||
aResponse.type() == CursorResponse::TObjectStoreKeyCursorResponse ||
aResponse.type() == CursorResponse::TIndexKeyCursorResponse,
aFiles.IsEmpty());
MOZ_ASSERT(!mActorDestroyed);
MOZ_ASSERT(mCurrentlyRunningOp);
for (size_t i = 0; i < aFiles.Length(); ++i) {
const auto& files = aFiles[i];
if (!files.IsEmpty()) {
MOZ_ASSERT(aResponse.type() ==
CursorResponse::TArrayOfObjectStoreCursorResponse ||
aResponse.type() == CursorResponse::TIndexCursorResponse);
MOZ_ASSERT(mDatabase);
MOZ_ASSERT(mBackgroundParent);
FallibleTArray<SerializedStructuredCloneFile> serializedFiles;
nsresult rv = SerializeStructuredCloneFiles(
mBackgroundParent, mDatabase, files,
/* aForPreprocess */ false, serializedFiles);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResponse = ClampResultCode(rv);
break;
}
SerializedStructuredCloneReadInfo* serializedInfo = nullptr;
switch (aResponse.type()) {
case CursorResponse::TArrayOfObjectStoreCursorResponse: {
auto& responses = aResponse.get_ArrayOfObjectStoreCursorResponse();
MOZ_ASSERT(i < responses.Length());
serializedInfo = &responses[i].cloneInfo();
break;
}
case CursorResponse::TIndexCursorResponse:
MOZ_ASSERT(i == 0);
serializedInfo = &aResponse.get_IndexCursorResponse().cloneInfo();
break;
default:
MOZ_CRASH("Should never get here!");
}
MOZ_ASSERT(serializedInfo);
MOZ_ASSERT(serializedInfo->files().IsEmpty());
serializedInfo->files().SwapElements(serializedFiles);
}
}
// Work around the deleted function by casting to the base class.
auto* base = static_cast<PBackgroundIDBCursorParent*>(this);
if (!base->SendResponse(aResponse)) {
NS_WARNING("Failed to send response!");
}
mCurrentlyRunningOp = nullptr;
}
void Cursor::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
mActorDestroyed = true;
if (mCurrentlyRunningOp) {
mCurrentlyRunningOp->NoteActorDestroyed();
}
mBackgroundParent = nullptr;
mObjectStoreMetadata = nullptr;
mIndexMetadata = nullptr;
}
mozilla::ipc::IPCResult Cursor::RecvDeleteMe() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
if (NS_WARN_IF(mCurrentlyRunningOp)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
IProtocol* mgr = Manager();
if (!PBackgroundIDBCursorParent::Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult Cursor::RecvContinue(
const CursorRequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParams.type() != CursorRequestParams::T__None);
MOZ_ASSERT(!mActorDestroyed);
MOZ_ASSERT(mObjectStoreMetadata);
MOZ_ASSERT_IF(mType == OpenCursorParams::TIndexOpenCursorParams ||
mType == OpenCursorParams::TIndexOpenKeyCursorParams,
mIndexMetadata);
const bool trustParams =
#ifdef DEBUG
// Always verify parameters in DEBUG builds!
false
#else
mIsSameProcessActor
#endif
;
if (!trustParams && !VerifyRequestParams(aParams)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mCurrentlyRunningOp)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(mTransaction->mCommitOrAbortReceived)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<ContinueOp> continueOp = new ContinueOp(this, aParams);
if (NS_WARN_IF(!continueOp->Init(mTransaction))) {
continueOp->Cleanup();
return IPC_FAIL_NO_REASON(this);
}
continueOp->DispatchToConnectionPool();
mCurrentlyRunningOp = continueOp;
return IPC_OK();
}
/*******************************************************************************
* FileManager
******************************************************************************/
FileManager::FileManager(PersistenceType aPersistenceType,
const nsACString& aGroup, const nsACString& aOrigin,
const nsAString& aDatabaseName, bool aEnforcingQuota)
: mPersistenceType(aPersistenceType),
mGroup(aGroup),
mOrigin(aOrigin),
mDatabaseName(aDatabaseName),
mLastFileId(0),
mEnforcingQuota(aEnforcingQuota),
mInvalidated(false) {}
nsresult FileManager::Init(nsIFile* aDirectory,
mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(aConnection);
bool exists;
nsresult rv = aDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
bool isDirectory;
rv = aDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
return NS_ERROR_FAILURE;
}
} else {
rv = aDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = aDirectory->GetPath(mDirectoryPath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFile> journalDirectory;
rv = aDirectory->Clone(getter_AddRefs(journalDirectory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = journalDirectory->Append(NS_LITERAL_STRING(JOURNAL_DIRECTORY_NAME));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = journalDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
bool isDirectory;
rv = journalDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
return NS_ERROR_FAILURE;
}
}
rv = journalDirectory->GetPath(mJournalDirectoryPath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(NS_LITERAL_CSTRING("SELECT id, refcount "
"FROM file"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
int64_t id;
rv = stmt->GetInt64(0, &id);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t refcount;
rv = stmt->GetInt32(1, &refcount);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(refcount > 0);
RefPtr<FileInfo> fileInfo = FileInfo::Create(this, id);
fileInfo->mDBRefCnt = static_cast<nsrefcnt>(refcount);
mFileInfos.Put(id, fileInfo);
mLastFileId = std::max(id, mLastFileId);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult FileManager::Invalidate() {
if (IndexedDatabaseManager::IsClosed()) {
MOZ_ASSERT(false, "Shouldn't be called after shutdown!");
return NS_ERROR_UNEXPECTED;
}
MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
MOZ_ASSERT(!mInvalidated);
mInvalidated = true;
for (auto iter = mFileInfos.Iter(); !iter.Done(); iter.Next()) {
FileInfo* info = iter.Data();
MOZ_ASSERT(info);
if (!info->LockedClearDBRefs()) {
iter.Remove();
}
}
return NS_OK;
}
already_AddRefed<nsIFile> FileManager::GetDirectory() {
return GetFileForPath(mDirectoryPath);
}
already_AddRefed<nsIFile> FileManager::GetCheckedDirectory() {
nsCOMPtr<nsIFile> directory = GetDirectory();
if (NS_WARN_IF(!directory)) {
return nullptr;
}
DebugOnly<bool> exists;
MOZ_ASSERT(NS_SUCCEEDED(directory->Exists(&exists)));
MOZ_ASSERT(exists);
DebugOnly<bool> isDirectory;
MOZ_ASSERT(NS_SUCCEEDED(directory->IsDirectory(&isDirectory)));
MOZ_ASSERT(isDirectory);
return directory.forget();
}
already_AddRefed<nsIFile> FileManager::GetJournalDirectory() {
return GetFileForPath(mJournalDirectoryPath);
}
already_AddRefed<nsIFile> FileManager::EnsureJournalDirectory() {
// This can happen on the IO or on a transaction thread.
MOZ_ASSERT(!NS_IsMainThread());
nsCOMPtr<nsIFile> journalDirectory = GetFileForPath(mJournalDirectoryPath);
if (NS_WARN_IF(!journalDirectory)) {
return nullptr;
}
bool exists;
nsresult rv = journalDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
if (exists) {
bool isDirectory;
rv = journalDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
if (NS_WARN_IF(!isDirectory)) {
return nullptr;
}
} else {
rv = journalDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
}
return journalDirectory.forget();
}
already_AddRefed<FileInfo> FileManager::GetFileInfo(int64_t aId) {
if (IndexedDatabaseManager::IsClosed()) {
MOZ_ASSERT(false, "Shouldn't be called after shutdown!");
return nullptr;
}
FileInfo* fileInfo;
{
MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
fileInfo = mFileInfos.Get(aId);
}
RefPtr<FileInfo> result = fileInfo;
return result.forget();
}
already_AddRefed<FileInfo> FileManager::GetNewFileInfo() {
MOZ_ASSERT(!IndexedDatabaseManager::IsClosed());
FileInfo* fileInfo;
{
MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
int64_t id = mLastFileId + 1;
fileInfo = FileInfo::Create(this, id);
mFileInfos.Put(id, fileInfo);
mLastFileId = id;
}
RefPtr<FileInfo> result = fileInfo;
return result.forget();
}
// static
already_AddRefed<nsIFile> FileManager::GetFileForId(nsIFile* aDirectory,
int64_t aId) {
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(aId > 0);
nsAutoString id;
id.AppendInt(aId);
nsCOMPtr<nsIFile> file;
nsresult rv = aDirectory->Clone(getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
rv = file->Append(id);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return file.forget();
}
// static
already_AddRefed<nsIFile> FileManager::GetCheckedFileForId(nsIFile* aDirectory,
int64_t aId) {
nsCOMPtr<nsIFile> file = GetFileForId(aDirectory, aId);
if (NS_WARN_IF(!file)) {
return nullptr;
}
DebugOnly<bool> exists;
MOZ_ASSERT(NS_SUCCEEDED(file->Exists(&exists)));
MOZ_ASSERT(exists);
DebugOnly<bool> isFile;
MOZ_ASSERT(NS_SUCCEEDED(file->IsFile(&isFile)));
MOZ_ASSERT(isFile);
return file.forget();
}
// static
nsresult FileManager::InitDirectory(nsIFile* aDirectory, nsIFile* aDatabaseFile,
PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
uint32_t aTelemetryId) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(aDatabaseFile);
bool exists;
nsresult rv = aDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
return NS_OK;
}
bool isDirectory;
rv = aDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIFile> journalDirectory;
rv = aDirectory->Clone(getter_AddRefs(journalDirectory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = journalDirectory->Append(NS_LITERAL_STRING(JOURNAL_DIRECTORY_NAME));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = journalDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
rv = journalDirectory->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDirectoryEnumerator> entries;
rv = journalDirectory->GetDirectoryEntries(getter_AddRefs(entries));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasElements;
rv = entries->HasMoreElements(&hasElements);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasElements) {
nsCOMPtr<mozIStorageConnection> connection;
rv = CreateStorageConnection(aDatabaseFile, aDirectory, VoidString(),
aPersistenceType, aGroup, aOrigin,
aTelemetryId, getter_AddRefs(connection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mozStorageTransaction transaction(connection, false);
rv = connection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("CREATE VIRTUAL TABLE fs USING filesystem;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageStatement> stmt;
rv = connection->CreateStatement(
NS_LITERAL_CSTRING("SELECT name, (name IN (SELECT id FROM file)) "
"FROM fs "
"WHERE path = :path"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsString path;
rv = journalDirectory->GetPath(path);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("path"), path);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
nsString name;
rv = stmt->GetString(0, name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t flag = stmt->AsInt32(1);
if (!flag) {
nsCOMPtr<nsIFile> file;
rv = aDirectory->Clone(getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = file->Append(name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_FAILED(file->Remove(false))) {
NS_WARNING("Failed to remove orphaned file!");
}
}
nsCOMPtr<nsIFile> journalFile;
rv = journalDirectory->Clone(getter_AddRefs(journalFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = journalFile->Append(name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_FAILED(journalFile->Remove(false))) {
NS_WARNING("Failed to remove journal file!");
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = connection->ExecuteSimpleSQL(NS_LITERAL_CSTRING("DROP TABLE fs;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = transaction.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
return NS_OK;
}
// static
nsresult FileManager::GetUsage(nsIFile* aDirectory, uint64_t* aUsage) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(aUsage);
bool exists;
nsresult rv = aDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
*aUsage = 0;
return NS_OK;
}
nsCOMPtr<nsIDirectoryEnumerator> entries;
rv = aDirectory->GetDirectoryEntries(getter_AddRefs(entries));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
uint64_t usage = 0;
nsCOMPtr<nsIFile> file;
while (NS_SUCCEEDED((rv = entries->GetNextFile(getter_AddRefs(file)))) &&
file) {
nsString leafName;
rv = file->GetLeafName(leafName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (leafName.EqualsLiteral(JOURNAL_DIRECTORY_NAME)) {
continue;
}
int64_t fileSize;
rv = file->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
UsageInfo::IncrementUsage(&usage, uint64_t(fileSize));
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
*aUsage = usage;
return NS_OK;
}
/*******************************************************************************
* QuotaClient
******************************************************************************/
QuotaClient* QuotaClient::sInstance = nullptr;
QuotaClient::QuotaClient() : mShutdownRequested(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!sInstance, "We expect this to be a singleton!");
MOZ_ASSERT(!gTelemetryIdMutex);
// Always create this so that later access to gTelemetryIdHashtable can be
// properly synchronized.
gTelemetryIdMutex = new Mutex("IndexedDB gTelemetryIdMutex");
sInstance = this;
}
QuotaClient::~QuotaClient() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(sInstance == this, "We expect this to be a singleton!");
MOZ_ASSERT(gTelemetryIdMutex);
MOZ_ASSERT(!mMaintenanceThreadPool);
// No one else should be able to touch gTelemetryIdHashtable now that the
// QuotaClient has gone away.
gTelemetryIdHashtable = nullptr;
gTelemetryIdMutex = nullptr;
sInstance = nullptr;
}
nsThreadPool* QuotaClient::GetOrCreateThreadPool() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mShutdownRequested);
if (!mMaintenanceThreadPool) {
RefPtr<nsThreadPool> threadPool = new nsThreadPool();
// PR_GetNumberOfProcessors() can return -1 on error, so make sure we
// don't set some huge number here. We add 2 in case some threads block on
// the disk I/O.
const uint32_t threadCount =
std::max(int32_t(PR_GetNumberOfProcessors()), int32_t(1)) + 2;
MOZ_ALWAYS_SUCCEEDS(threadPool->SetThreadLimit(threadCount));
// Don't keep more than one idle thread.
MOZ_ALWAYS_SUCCEEDS(threadPool->SetIdleThreadLimit(1));
// Don't keep idle threads alive very long.
MOZ_ALWAYS_SUCCEEDS(threadPool->SetIdleThreadTimeout(5 * PR_MSEC_PER_SEC));
MOZ_ALWAYS_SUCCEEDS(
threadPool->SetName(NS_LITERAL_CSTRING("IndexedDB Mnt")));
mMaintenanceThreadPool = std::move(threadPool);
}
return mMaintenanceThreadPool;
}
mozilla::dom::quota::Client::Type QuotaClient::GetType() {
return QuotaClient::IDB;
}
nsresult QuotaClient::UpgradeStorageFrom1_0To2_0(nsIFile* aDirectory) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
AtomicBool dummy(false);
AutoTArray<nsString, 20> subdirsToProcess;
nsTHashtable<nsStringHashKey> databaseFilenames(20);
nsresult rv = GetDatabaseFilenames(aDirectory,
/* aCanceled */ dummy,
/* aForUpgrade */ true, subdirsToProcess,
databaseFilenames);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
const NS_ConvertASCIItoUTF16 filesSuffix(
kFileManagerDirectoryNameSuffix,
LiteralStringLength(kFileManagerDirectoryNameSuffix));
for (uint32_t count = subdirsToProcess.Length(), i = 0; i < count; i++) {
const nsString& subdirName = subdirsToProcess[i];
// If the directory has the correct suffix then it should exist in
// databaseFilenames.
nsDependentSubstring subdirNameBase;
if (GetBaseFilename(subdirName, filesSuffix, subdirNameBase)) {
Unused << NS_WARN_IF(!databaseFilenames.GetEntry(subdirNameBase));
continue;
}
// The directory didn't have the right suffix but we might need to rename
// it. Check to see if we have a database that references this directory.
nsString subdirNameWithSuffix;
if (databaseFilenames.GetEntry(subdirName)) {
subdirNameWithSuffix = subdirName + filesSuffix;
} else {
// Windows doesn't allow a directory to end with a dot ('.'), so we have
// to check that possibility here too.
// We do this on all platforms, because the origin directory may have
// been created on Windows and now accessed on different OS.
nsString subdirNameWithDot = subdirName + NS_LITERAL_STRING(".");
if (NS_WARN_IF(!databaseFilenames.GetEntry(subdirNameWithDot))) {
continue;
}
subdirNameWithSuffix = subdirNameWithDot + filesSuffix;
}
// We do have a database that uses this directory so we should rename it
// now. However, first check to make sure that we're not overwriting
// something else.
nsCOMPtr<nsIFile> subdir;
rv = aDirectory->Clone(getter_AddRefs(subdir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = subdir->Append(subdirNameWithSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool exists;
rv = subdir->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
rv = aDirectory->Clone(getter_AddRefs(subdir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = subdir->Append(subdirName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DebugOnly<bool> isDirectory;
MOZ_ASSERT(NS_SUCCEEDED(subdir->IsDirectory(&isDirectory)));
MOZ_ASSERT(isDirectory);
rv = subdir->RenameTo(nullptr, subdirNameWithSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
nsresult QuotaClient::InitOrigin(PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
const AtomicBool& aCanceled,
UsageInfo* aUsageInfo) {
AssertIsOnIOThread();
nsCOMPtr<nsIFile> directory;
nsresult rv =
GetDirectory(aPersistenceType, aOrigin, getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetDirectory);
return rv;
}
// We need to see if there are any files in the directory already. If they
// are database files then we need to cleanup stored files (if it's needed)
// and also get the usage.
AutoTArray<nsString, 20> subdirsToProcess;
nsTHashtable<nsStringHashKey> databaseFilenames(20);
nsTHashtable<nsStringHashKey> obsoleteFilenames;
rv = GetDatabaseFilenames(directory, aCanceled,
/* aForUpgrade */ false, subdirsToProcess,
databaseFilenames, &obsoleteFilenames);
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetDBFilenames);
return rv;
}
const NS_ConvertASCIItoUTF16 filesSuffix(
kFileManagerDirectoryNameSuffix,
LiteralStringLength(kFileManagerDirectoryNameSuffix));
for (uint32_t count = subdirsToProcess.Length(), i = 0; i < count; i++) {
const nsString& subdirName = subdirsToProcess[i];
// The directory must have the correct suffix.
nsDependentSubstring subdirNameBase;
if (NS_WARN_IF(!GetBaseFilename(subdirName, filesSuffix, subdirNameBase))) {
// If there is an unexpected directory in the idb directory, trying to
// delete at first instead of breaking the whole initialization.
if (NS_WARN_IF(NS_FAILED(DeleteFilesNoQuota(directory, subdirName)))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetBaseFilename);
return NS_ERROR_UNEXPECTED;
}
continue;
}
if (obsoleteFilenames.Contains(subdirNameBase)) {
rv = RemoveDatabaseFilesAndDirectory(directory, subdirNameBase, nullptr,
aPersistenceType, aGroup, aOrigin,
EmptyString());
if (NS_WARN_IF(NS_FAILED(rv))) {
// If we somehow running into here, it probably means we are in a
// serious situation. e.g. Filesystem corruption.
// Will handle this in bug 1521541.
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_RemoveDBFiles);
return NS_ERROR_UNEXPECTED;
}
databaseFilenames.RemoveEntry(subdirNameBase);
continue;
}
// The directory base must exist in databaseFilenames.
// If there is an unexpected directory in the idb directory, trying to
// delete at first instead of breaking the whole initialization.
if (NS_WARN_IF(!databaseFilenames.GetEntry(subdirNameBase)) &&
NS_WARN_IF(NS_FAILED(DeleteFilesNoQuota(directory, subdirName)))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetEntry);
return NS_ERROR_UNEXPECTED;
}
}
const NS_ConvertASCIItoUTF16 sqliteSuffix(kSQLiteSuffix,
LiteralStringLength(kSQLiteSuffix));
const NS_ConvertASCIItoUTF16 walSuffix(kSQLiteWALSuffix,
LiteralStringLength(kSQLiteWALSuffix));
for (auto iter = databaseFilenames.ConstIter(); !iter.Done() && !aCanceled;
iter.Next()) {
auto& databaseFilename = iter.Get()->GetKey();
nsCOMPtr<nsIFile> fmDirectory;
rv = directory->Clone(getter_AddRefs(fmDirectory));
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_Clone);
return rv;
}
rv = fmDirectory->Append(databaseFilename + filesSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_Append);
return rv;
}
nsCOMPtr<nsIFile> databaseFile;
rv = directory->Clone(getter_AddRefs(databaseFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_Clone2);
return rv;
}
rv = databaseFile->Append(databaseFilename + sqliteSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_Append2);
return rv;
}
nsCOMPtr<nsIFile> walFile;
if (aUsageInfo) {
rv = directory->Clone(getter_AddRefs(walFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_Clone3);
return rv;
}
rv = walFile->Append(databaseFilename + walSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_Append3);
return rv;
}
}
rv = FileManager::InitDirectory(fmDirectory, databaseFile, aPersistenceType,
aGroup, aOrigin,
TelemetryIdForFile(databaseFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kInternalError, IDB_InitDirectory);
return rv;
}
if (aUsageInfo) {
int64_t fileSize;
rv = databaseFile->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetFileSize);
return rv;
}
MOZ_ASSERT(fileSize >= 0);
aUsageInfo->AppendToDatabaseUsage(uint64_t(fileSize));
rv = walFile->GetFileSize(&fileSize);
if (NS_SUCCEEDED(rv)) {
MOZ_ASSERT(fileSize >= 0);
aUsageInfo->AppendToDatabaseUsage(uint64_t(fileSize));
} else if (NS_WARN_IF(rv != NS_ERROR_FILE_NOT_FOUND &&
rv != NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetWalFileSize);
return rv;
}
uint64_t usage;
rv = FileManager::GetUsage(fmDirectory, &usage);
if (NS_WARN_IF(NS_FAILED(rv))) {
REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_GetUsage);
return rv;
}
aUsageInfo->AppendToFileUsage(usage);
}
}
return NS_OK;
}
nsresult QuotaClient::GetUsageForOrigin(PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
const AtomicBool& aCanceled,
UsageInfo* aUsageInfo) {
AssertIsOnIOThread();
MOZ_ASSERT(aUsageInfo);
nsCOMPtr<nsIFile> directory;
nsresult rv =
GetDirectory(aPersistenceType, aOrigin, getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = GetUsageForDirectoryInternal(directory, aCanceled, aUsageInfo, true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void QuotaClient::OnOriginClearCompleted(PersistenceType aPersistenceType,
const nsACString& aOrigin) {
AssertIsOnIOThread();
if (IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get()) {
mgr->InvalidateFileManagers(aPersistenceType, aOrigin);
}
}
void QuotaClient::ReleaseIOThreadObjects() {
AssertIsOnIOThread();
if (IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get()) {
mgr->InvalidateAllFileManagers();
}
}
void QuotaClient::AbortOperations(const nsACString& aOrigin) {
AssertIsOnBackgroundThread();
if (!gLiveDatabaseHashtable) {
return;
}
nsTArray<RefPtr<Database>> databases;
for (auto iter = gLiveDatabaseHashtable->ConstIter(); !iter.Done();
iter.Next()) {
for (Database* database : iter.Data()->mLiveDatabases) {
if (aOrigin.IsVoid() || database->Origin() == aOrigin) {
databases.AppendElement(database);
}
}
}
for (Database* database : databases) {
database->Invalidate();
}
databases.Clear();
}
void QuotaClient::AbortOperationsForProcess(ContentParentId aContentParentId) {
AssertIsOnBackgroundThread();
if (!gLiveDatabaseHashtable) {
return;
}
nsTArray<RefPtr<Database>> databases;
for (auto iter = gLiveDatabaseHashtable->ConstIter(); !iter.Done();
iter.Next()) {
for (Database* database : iter.Data()->mLiveDatabases) {
if (database->IsOwnedByProcess(aContentParentId)) {
databases.AppendElement(database);
}
}
}
for (Database* database : databases) {
database->Invalidate();
}
databases.Clear();
}
void QuotaClient::StartIdleMaintenance() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mShutdownRequested);
mBackgroundThread = GetCurrentThreadEventTarget();
RefPtr<Maintenance> maintenance = new Maintenance(this);
mMaintenanceQueue.AppendElement(maintenance.forget());
ProcessMaintenanceQueue();
}
void QuotaClient::StopIdleMaintenance() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mShutdownRequested);
if (mCurrentMaintenance) {
mCurrentMaintenance->Abort();
}
for (RefPtr<Maintenance>& maintenance : mMaintenanceQueue) {
maintenance->Abort();
}
}
void QuotaClient::ShutdownWorkThreads() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mShutdownRequested);
mShutdownRequested = true;
AbortOperations(VoidCString());
// This should release any IDB related quota objects or directory locks.
MOZ_ALWAYS_TRUE(SpinEventLoopUntil([&]() {
return (!gFactoryOps || gFactoryOps->IsEmpty()) &&
(!gLiveDatabaseHashtable || !gLiveDatabaseHashtable->Count()) &&
!mCurrentMaintenance;
}));
// And finally, shutdown all threads.
RefPtr<ConnectionPool> connectionPool = gConnectionPool.get();
if (connectionPool) {
connectionPool->Shutdown();
gConnectionPool = nullptr;
}
RefPtr<FileHandleThreadPool> fileHandleThreadPool =
gFileHandleThreadPool.get();
if (fileHandleThreadPool) {
fileHandleThreadPool->Shutdown();
gFileHandleThreadPool = nullptr;
}
if (mMaintenanceThreadPool) {
mMaintenanceThreadPool->Shutdown();
mMaintenanceThreadPool = nullptr;
}
}
void QuotaClient::DidInitialize(QuotaManager* aQuotaManager) {
MOZ_ASSERT(NS_IsMainThread());
if (IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get()) {
mgr->NoteLiveQuotaManager(aQuotaManager);
}
}
void QuotaClient::WillShutdown() {
MOZ_ASSERT(NS_IsMainThread());
if (IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get()) {
mgr->NoteShuttingDownQuotaManager();
}
}
nsresult QuotaClient::GetDirectory(PersistenceType aPersistenceType,
const nsACString& aOrigin,
nsIFile** aDirectory) {
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "This should never fail!");
nsCOMPtr<nsIFile> directory;
nsresult rv = quotaManager->GetDirectoryForOrigin(aPersistenceType, aOrigin,
getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(directory);
rv = directory->Append(NS_LITERAL_STRING(IDB_DIRECTORY_NAME));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
directory.forget(aDirectory);
return NS_OK;
}
nsresult QuotaClient::GetDatabaseFilenames(
nsIFile* aDirectory, const AtomicBool& aCanceled, bool aForUpgrade,
nsTArray<nsString>& aSubdirsToProcess,
nsTHashtable<nsStringHashKey>& aDatabaseFilenames,
nsTHashtable<nsStringHashKey>* aObsoleteFilenames) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
nsCOMPtr<nsIDirectoryEnumerator> entries;
nsresult rv = aDirectory->GetDirectoryEntries(getter_AddRefs(entries));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
const NS_ConvertASCIItoUTF16 sqliteSuffix(kSQLiteSuffix,
LiteralStringLength(kSQLiteSuffix));
const NS_ConvertASCIItoUTF16 journalSuffix(
kSQLiteJournalSuffix, LiteralStringLength(kSQLiteJournalSuffix));
const NS_ConvertASCIItoUTF16 shmSuffix(kSQLiteSHMSuffix,
LiteralStringLength(kSQLiteSHMSuffix));
const NS_ConvertASCIItoUTF16 walSuffix(kSQLiteWALSuffix,
LiteralStringLength(kSQLiteWALSuffix));
nsCOMPtr<nsIFile> file;
while (NS_SUCCEEDED((rv = entries->GetNextFile(getter_AddRefs(file)))) &&
file && !aCanceled) {
nsString leafName;
rv = file->GetLeafName(leafName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool isDirectory;
rv = file->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (isDirectory) {
aSubdirsToProcess.AppendElement(leafName);
continue;
}
if (aObsoleteFilenames &&
StringBeginsWith(leafName,
NS_LITERAL_STRING(IDB_DELETION_MARKER_FILE_PREFIX))) {
const uint32_t start = 13;
MOZ_ASSERT(start == LiteralStringLength(IDB_DELETION_MARKER_FILE_PREFIX));
aObsoleteFilenames->PutEntry(Substring(leafName, start));
continue;
}
// Skip OS metadata files. These files are only used in different platforms,
// but the profile can be shared across different operating systems, so we
// check it on all platforms.
if (QuotaManager::IsOSMetadata(leafName)) {
continue;
}
// Skip files starting with ".".
if (QuotaManager::IsDotFile(leafName)) {
continue;
}
// Skip SQLite temporary files. These files take up space on disk but will
// be deleted as soon as the database is opened, so we don't count them
// towards quota.
if (StringEndsWith(leafName, journalSuffix) ||
StringEndsWith(leafName, shmSuffix)) {
continue;
}
// The SQLite WAL file does count towards quota, but it is handled below
// once we find the actual database file.
if (StringEndsWith(leafName, walSuffix)) {
continue;
}
nsDependentSubstring leafNameBase;
if (!GetBaseFilename(leafName, sqliteSuffix, leafNameBase)) {
nsString path;
MOZ_ALWAYS_SUCCEEDS(file->GetPath(path));
MOZ_ASSERT(!path.IsEmpty());
nsPrintfCString warning(R"(An unexpected file exists in the storage )"
R"(area: "%s")",
NS_ConvertUTF16toUTF8(path).get());
NS_WARNING(warning.get());
if (!aForUpgrade) {
return NS_ERROR_UNEXPECTED;
}
continue;
}
aDatabaseFilenames.PutEntry(leafNameBase);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult QuotaClient::GetUsageForDirectoryInternal(nsIFile* aDirectory,
const AtomicBool& aCanceled,
UsageInfo* aUsageInfo,
bool aDatabaseFiles) {
AssertIsOnIOThread();
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(aUsageInfo);
nsCOMPtr<nsIDirectoryEnumerator> entries;
nsresult rv = aDirectory->GetDirectoryEntries(getter_AddRefs(entries));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!entries) {
return NS_OK;
}
const NS_ConvertASCIItoUTF16 journalSuffix(
kSQLiteJournalSuffix, LiteralStringLength(kSQLiteJournalSuffix));
const NS_ConvertASCIItoUTF16 shmSuffix(kSQLiteSHMSuffix,
LiteralStringLength(kSQLiteSHMSuffix));
nsCOMPtr<nsIFile> file;
while (NS_SUCCEEDED((rv = entries->GetNextFile(getter_AddRefs(file)))) &&
file && !aCanceled) {
nsString leafName;
rv = file->GetLeafName(leafName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Ignore the markerfiles. Note: the unremoved files can still be calculated
// here as long as its size matches the size recorded in QuotaManager
// in-memory objects.
if (StringBeginsWith(leafName,
NS_LITERAL_STRING(IDB_DELETION_MARKER_FILE_PREFIX))) {
continue;
}
if (QuotaManager::IsOSMetadata(leafName) ||
QuotaManager::IsDotFile(leafName)) {
continue;
}
// Journal files and sqlite-shm files don't count towards usage.
if (StringEndsWith(leafName, journalSuffix) ||
StringEndsWith(leafName, shmSuffix)) {
continue;
}
bool isDirectory;
rv = file->IsDirectory(&isDirectory);
if (rv == NS_ERROR_FILE_NOT_FOUND ||
rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST) {
continue;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (isDirectory) {
if (aDatabaseFiles) {
rv = GetUsageForDirectoryInternal(file, aCanceled, aUsageInfo, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
nsString leafName;
rv = file->GetLeafName(leafName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!leafName.EqualsLiteral(JOURNAL_DIRECTORY_NAME)) {
NS_WARNING("Unknown directory found!");
}
}
continue;
}
int64_t fileSize;
rv = file->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(fileSize >= 0);
if (aDatabaseFiles) {
aUsageInfo->AppendToDatabaseUsage(uint64_t(fileSize));
} else {
aUsageInfo->AppendToFileUsage(uint64_t(fileSize));
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void QuotaClient::ProcessMaintenanceQueue() {
AssertIsOnBackgroundThread();
if (mCurrentMaintenance || mMaintenanceQueue.IsEmpty()) {
return;
}
mCurrentMaintenance = mMaintenanceQueue[0];
mMaintenanceQueue.RemoveElementAt(0);
mCurrentMaintenance->RunImmediately();
}
void Maintenance::RegisterDatabaseMaintenance(
DatabaseMaintenance* aDatabaseMaintenance) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabaseMaintenance);
MOZ_ASSERT(mState == State::BeginDatabaseMaintenance);
MOZ_ASSERT(!mDatabaseMaintenances.Get(aDatabaseMaintenance->DatabasePath()));
mDatabaseMaintenances.Put(aDatabaseMaintenance->DatabasePath(),
aDatabaseMaintenance);
}
void Maintenance::UnregisterDatabaseMaintenance(
DatabaseMaintenance* aDatabaseMaintenance) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabaseMaintenance);
MOZ_ASSERT(mState == State::WaitingForDatabaseMaintenancesToComplete);
MOZ_ASSERT(mDatabaseMaintenances.Get(aDatabaseMaintenance->DatabasePath()));
mDatabaseMaintenances.Remove(aDatabaseMaintenance->DatabasePath());
if (mDatabaseMaintenances.Count()) {
return;
}
mState = State::Finishing;
Finish();
}
nsresult Maintenance::Start() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::Initial);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsAborted()) {
return NS_ERROR_ABORT;
}
// Make sure that the IndexedDatabaseManager is running so that we can check
// for low disk space mode.
if (IndexedDatabaseManager::Get()) {
OpenDirectory();
return NS_OK;
}
mState = State::CreateIndexedDatabaseManager;
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(this));
return NS_OK;
}
nsresult Maintenance::CreateIndexedDatabaseManager() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mState == State::CreateIndexedDatabaseManager);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
IsAborted()) {
return NS_ERROR_ABORT;
}
IndexedDatabaseManager* mgr = IndexedDatabaseManager::GetOrCreate();
if (NS_WARN_IF(!mgr)) {
return NS_ERROR_FAILURE;
}
mState = State::IndexedDatabaseManagerOpen;
MOZ_ALWAYS_SUCCEEDS(
mQuotaClient->BackgroundThread()->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
nsresult Maintenance::OpenDirectory() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::Initial ||
mState == State::IndexedDatabaseManagerOpen);
MOZ_ASSERT(!mDirectoryLock);
MOZ_ASSERT(QuotaManager::Get());
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsAborted()) {
return NS_ERROR_ABORT;
}
// Get a shared lock for <profile>/storage/*/*/idb
mState = State::DirectoryOpenPending;
QuotaManager::Get()->OpenDirectoryInternal(
Nullable<PersistenceType>(), OriginScope::FromNull(),
Nullable<Client::Type>(Client::IDB),
/* aExclusive */ false, this);
return NS_OK;
}
nsresult Maintenance::DirectoryOpen() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::DirectoryOpenPending);
MOZ_ASSERT(mDirectoryLock);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsAborted()) {
return NS_ERROR_ABORT;
}
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
mState = State::DirectoryWorkOpen;
nsresult rv = quotaManager->IOThread()->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult Maintenance::DirectoryWork() {
AssertIsOnIOThread();
MOZ_ASSERT(mState == State::DirectoryWorkOpen);
// The storage directory is structured like this:
//
// <profile>/storage/<persistence>/<origin>/idb/*.sqlite
//
// We have to find all database files that match any persistence type and any
// origin. We ignore anything out of the ordinary for now.
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
IsAborted()) {
return NS_ERROR_ABORT;
}
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsresult rv = quotaManager->EnsureStorageIsInitialized();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFile> storageDir = GetFileForPath(quotaManager->GetStoragePath());
if (NS_WARN_IF(!storageDir)) {
return NS_ERROR_FAILURE;
}
bool exists;
rv = storageDir->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
return NS_ERROR_NOT_AVAILABLE;
}
bool isDirectory;
rv = storageDir->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
return NS_ERROR_FAILURE;
}
// There are currently only 3 persistence types, and we want to iterate them
// in this order:
static const PersistenceType kPersistenceTypes[] = {
PERSISTENCE_TYPE_PERSISTENT, PERSISTENCE_TYPE_DEFAULT,
PERSISTENCE_TYPE_TEMPORARY};
static_assert((sizeof(kPersistenceTypes) / sizeof(kPersistenceTypes[0])) ==
size_t(PERSISTENCE_TYPE_INVALID),
"Something changed with available persistence types!");
NS_NAMED_LITERAL_STRING(idbDirName, IDB_DIRECTORY_NAME);
NS_NAMED_LITERAL_STRING(sqliteExtension, ".sqlite");
for (const PersistenceType persistenceType : kPersistenceTypes) {
// Loop over "<persistence>" directories.
if (IsAborted()) {
return NS_ERROR_ABORT;
}
nsAutoCString persistenceTypeString;
if (persistenceType == PERSISTENCE_TYPE_PERSISTENT) {
// XXX This shouldn't be a special case...
persistenceTypeString.AssignLiteral("permanent");
} else {
PersistenceTypeToText(persistenceType, persistenceTypeString);
}
nsCOMPtr<nsIFile> persistenceDir;
rv = storageDir->Clone(getter_AddRefs(persistenceDir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = persistenceDir->Append(NS_ConvertASCIItoUTF16(persistenceTypeString));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = persistenceDir->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
continue;
}
rv = persistenceDir->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
continue;
}
nsCOMPtr<nsIDirectoryEnumerator> persistenceDirEntries;
rv = persistenceDir->GetDirectoryEntries(
getter_AddRefs(persistenceDirEntries));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!persistenceDirEntries) {
continue;
}
while (true) {
// Loop over "<origin>/idb" directories.
if (IsAborted()) {
return NS_ERROR_ABORT;
}
nsCOMPtr<nsIFile> originDir;
rv = persistenceDirEntries->GetNextFile(getter_AddRefs(originDir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!originDir) {
break;
}
rv = originDir->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(exists);
rv = originDir->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!isDirectory) {
continue;
}
nsCOMPtr<nsIFile> idbDir;
rv = originDir->Clone(getter_AddRefs(idbDir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = idbDir->Append(idbDirName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = idbDir->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
continue;
}
rv = idbDir->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isDirectory)) {
continue;
}
nsCOMPtr<nsIDirectoryEnumerator> idbDirEntries;
rv = idbDir->GetDirectoryEntries(getter_AddRefs(idbDirEntries));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!idbDirEntries) {
continue;
}
nsCString suffix;
nsCString group;
nsCString origin;
nsTArray<nsString> databasePaths;
while (true) {
// Loop over files in the "idb" directory.
if (IsAborted()) {
return NS_ERROR_ABORT;
}
nsCOMPtr<nsIFile> idbDirFile;
rv = idbDirEntries->GetNextFile(getter_AddRefs(idbDirFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!idbDirFile) {
break;
}
nsString idbFilePath;
rv = idbDirFile->GetPath(idbFilePath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!StringEndsWith(idbFilePath, sqliteExtension)) {
continue;
}
rv = idbDirFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(exists);
rv = idbDirFile->IsDirectory(&isDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (isDirectory) {
continue;
}
// Found a database.
if (databasePaths.IsEmpty()) {
MOZ_ASSERT(suffix.IsEmpty());
MOZ_ASSERT(group.IsEmpty());
MOZ_ASSERT(origin.IsEmpty());
int64_t dummyTimeStamp;
bool dummyPersisted;
if (NS_WARN_IF(NS_FAILED(quotaManager->GetDirectoryMetadata2(
originDir, &dummyTimeStamp, &dummyPersisted, suffix, group,
origin)))) {
// Not much we can do here...
continue;
}
}
MOZ_ASSERT(!databasePaths.Contains(idbFilePath));
databasePaths.AppendElement(idbFilePath);
}
if (!databasePaths.IsEmpty()) {
mDirectoryInfos.AppendElement(DirectoryInfo(
persistenceType, group, origin, std::move(databasePaths)));
nsCOMPtr<nsIFile> directory;
// Idle maintenance may occur before origin is initailized.
// Ensure origin is initialized first. It will initialize all origins
// for temporary storage including IDB origins.
rv = quotaManager->EnsureOriginIsInitialized(
persistenceType, suffix, group, origin,
/* aCreateIfNotExists */ true, getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
}
mState = State::BeginDatabaseMaintenance;
MOZ_ALWAYS_SUCCEEDS(
mQuotaClient->BackgroundThread()->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
nsresult Maintenance::BeginDatabaseMaintenance() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::BeginDatabaseMaintenance);
class MOZ_STACK_CLASS Helper final {
public:
static bool IsSafeToRunMaintenance(const nsAString& aDatabasePath) {
if (gFactoryOps) {
for (uint32_t index = gFactoryOps->Length(); index > 0; index--) {
RefPtr<FactoryOp>& existingOp = (*gFactoryOps)[index - 1];
if (!existingOp->DatabaseFilePathIsKnown()) {
continue;
}
if (existingOp->DatabaseFilePath() == aDatabasePath) {
return false;
}
}
}
if (gLiveDatabaseHashtable) {
for (auto iter = gLiveDatabaseHashtable->ConstIter(); !iter.Done();
iter.Next()) {
for (Database* database : iter.Data()->mLiveDatabases) {
if (database->FilePath() == aDatabasePath) {
return false;
}
}
}
}
return true;
}
};
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsAborted()) {
return NS_ERROR_ABORT;
}
RefPtr<nsThreadPool> threadPool;
for (DirectoryInfo& directoryInfo : mDirectoryInfos) {
for (const nsString& databasePath : directoryInfo.mDatabasePaths) {
if (Helper::IsSafeToRunMaintenance(databasePath)) {
RefPtr<DatabaseMaintenance> databaseMaintenance =
new DatabaseMaintenance(this, directoryInfo.mPersistenceType,
directoryInfo.mGroup, directoryInfo.mOrigin,
databasePath);
if (!threadPool) {
threadPool = mQuotaClient->GetOrCreateThreadPool();
MOZ_ASSERT(threadPool);
}
MOZ_ALWAYS_SUCCEEDS(
threadPool->Dispatch(databaseMaintenance, NS_DISPATCH_NORMAL));
RegisterDatabaseMaintenance(databaseMaintenance);
}
}
}
mDirectoryInfos.Clear();
if (mDatabaseMaintenances.Count()) {
mState = State::WaitingForDatabaseMaintenancesToComplete;
} else {
mState = State::Finishing;
Finish();
}
return NS_OK;
}
void Maintenance::Finish() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::Finishing);
if (NS_FAILED(mResultCode)) {
nsCString errorName;
GetErrorName(mResultCode, errorName);
IDB_WARNING("Maintenance finished with error: %s", errorName.get());
}
mDirectoryLock = nullptr;
// It can happen that we are only referenced by mCurrentMaintenance which is
// cleared in NoteFinishedMaintenance()
RefPtr<Maintenance> kungFuDeathGrip = this;
mQuotaClient->NoteFinishedMaintenance(this);
mState = State::Complete;
}
NS_IMPL_ISUPPORTS_INHERITED0(Maintenance, Runnable)
NS_IMETHODIMP
Maintenance::Run() {
MOZ_ASSERT(mState != State::Complete);
nsresult rv;
switch (mState) {
case State::Initial:
rv = Start();
break;
case State::CreateIndexedDatabaseManager:
rv = CreateIndexedDatabaseManager();
break;
case State::IndexedDatabaseManagerOpen:
rv = OpenDirectory();
break;
case State::DirectoryWorkOpen:
rv = DirectoryWork();
break;
case State::BeginDatabaseMaintenance:
rv = BeginDatabaseMaintenance();
break;
case State::Finishing:
Finish();
return NS_OK;
default:
MOZ_CRASH("Bad state!");
}
if (NS_WARN_IF(NS_FAILED(rv)) && mState != State::Finishing) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
// Must set mState before dispatching otherwise we will race with the owning
// thread.
mState = State::Finishing;
if (IsOnBackgroundThread()) {
Finish();
} else {
MOZ_ALWAYS_SUCCEEDS(
mQuotaClient->BackgroundThread()->Dispatch(this, NS_DISPATCH_NORMAL));
}
}
return NS_OK;
}
void Maintenance::DirectoryLockAcquired(DirectoryLock* aLock) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::DirectoryOpenPending);
MOZ_ASSERT(!mDirectoryLock);
mDirectoryLock = aLock;
nsresult rv = DirectoryOpen();
if (NS_WARN_IF(NS_FAILED(rv))) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
mState = State::Finishing;
Finish();
return;
}
}
void Maintenance::DirectoryLockFailed() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mState == State::DirectoryOpenPending);
MOZ_ASSERT(!mDirectoryLock);
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = NS_ERROR_FAILURE;
}
mState = State::Finishing;
Finish();
}
void DatabaseMaintenance::PerformMaintenanceOnDatabase() {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mMaintenance);
MOZ_ASSERT(mMaintenance->StartTime());
MOZ_ASSERT(!mDatabasePath.IsEmpty());
MOZ_ASSERT(!mGroup.IsEmpty());
MOZ_ASSERT(!mOrigin.IsEmpty());
class MOZ_STACK_CLASS AutoClose final {
nsCOMPtr<mozIStorageConnection> mConnection;
public:
explicit AutoClose(mozIStorageConnection* aConnection)
: mConnection(aConnection) {
MOZ_ASSERT(aConnection);
}
~AutoClose() {
MOZ_ASSERT(mConnection);
MOZ_ALWAYS_SUCCEEDS(mConnection->Close());
}
};
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
mMaintenance->IsAborted()) {
return;
}
nsCOMPtr<nsIFile> databaseFile = GetFileForPath(mDatabasePath);
MOZ_ASSERT(databaseFile);
nsCOMPtr<mozIStorageConnection> connection;
nsresult rv = GetStorageConnection(databaseFile, mPersistenceType, mGroup,
mOrigin, TelemetryIdForFile(databaseFile),
getter_AddRefs(connection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
AutoClose autoClose(connection);
AutoProgressHandler progressHandler(mMaintenance);
if (NS_WARN_IF(NS_FAILED(progressHandler.Register(connection)))) {
return;
}
bool databaseIsOk;
rv = CheckIntegrity(connection, &databaseIsOk);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
if (NS_WARN_IF(!databaseIsOk)) {
// XXX Handle this somehow! Probably need to clear all storage for the
// origin. Needs followup.
MOZ_ASSERT(false, "Database corruption detected!");
return;
}
MaintenanceAction maintenanceAction;
rv = DetermineMaintenanceAction(connection, databaseFile, &maintenanceAction);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
switch (maintenanceAction) {
case MaintenanceAction::Nothing:
break;
case MaintenanceAction::IncrementalVacuum:
IncrementalVacuum(connection);
break;
case MaintenanceAction::FullVacuum:
FullVacuum(connection, databaseFile);
break;
default:
MOZ_CRASH("Unknown MaintenanceAction!");
}
}
nsresult DatabaseMaintenance::CheckIntegrity(mozIStorageConnection* aConnection,
bool* aOk) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
MOZ_ASSERT(aOk);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
mMaintenance->IsAborted()) {
return NS_ERROR_ABORT;
}
nsresult rv;
// First do a full integrity_check. Scope statements tightly here because
// later operations require zero live statements.
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("PRAGMA integrity_check(1);"), getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
nsString result;
rv = stmt->GetString(0, result);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!result.EqualsLiteral("ok"))) {
*aOk = false;
return NS_OK;
}
}
// Now enable and check for foreign key constraints.
{
int32_t foreignKeysWereEnabled;
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("PRAGMA foreign_keys;"), getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
rv = stmt->GetInt32(0, &foreignKeysWereEnabled);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (!foreignKeysWereEnabled) {
rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA foreign_keys = ON;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool foreignKeyError;
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("PRAGMA foreign_key_check;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->ExecuteStep(&foreignKeyError);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (!foreignKeysWereEnabled) {
nsAutoCString stmtSQL;
stmtSQL.AssignLiteral("PRAGMA foreign_keys = ");
stmtSQL.AppendLiteral("OFF");
stmtSQL.Append(';');
rv = aConnection->ExecuteSimpleSQL(stmtSQL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (foreignKeyError) {
*aOk = false;
return NS_OK;
}
}
*aOk = true;
return NS_OK;
}
nsresult DatabaseMaintenance::DetermineMaintenanceAction(
mozIStorageConnection* aConnection, nsIFile* aDatabaseFile,
MaintenanceAction* aMaintenanceAction) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
MOZ_ASSERT(aDatabaseFile);
MOZ_ASSERT(aMaintenanceAction);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
mMaintenance->IsAborted()) {
return NS_ERROR_ABORT;
}
int32_t schemaVersion;
nsresult rv = aConnection->GetSchemaVersion(&schemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Don't do anything if the schema version is less than 18; before that
// version no databases had |auto_vacuum == INCREMENTAL| set and we didn't
// track the values needed for the heuristics below.
if (schemaVersion < MakeSchemaVersion(18, 0)) {
*aMaintenanceAction = MaintenanceAction::Nothing;
return NS_OK;
}
// This method shouldn't make any permanent changes to the database, so make
// sure everything gets rolled back when we leave.
mozStorageTransaction transaction(aConnection,
/* aCommitOnComplete */ false);
// Check to see when we last vacuumed this database.
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("SELECT last_vacuum_time, last_vacuum_size "
"FROM database;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
PRTime lastVacuumTime;
rv = stmt->GetInt64(0, &lastVacuumTime);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t lastVacuumSize;
rv = stmt->GetInt64(1, &lastVacuumSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
NS_ASSERTION(lastVacuumSize > 0,
"Thy last vacuum size shall be greater than zero, less than "
"zero shall thy last vacuum size not be. Zero is right out.");
PRTime startTime = mMaintenance->StartTime();
// This shouldn't really be possible...
if (NS_WARN_IF(startTime <= lastVacuumTime)) {
*aMaintenanceAction = MaintenanceAction::Nothing;
return NS_OK;
}
if (startTime - lastVacuumTime < kMinVacuumAge) {
*aMaintenanceAction = MaintenanceAction::IncrementalVacuum;
return NS_OK;
}
// It has been more than a week since the database was vacuumed, so gather
// statistics on its usage to see if vacuuming is worthwhile.
// Create a temporary copy of the dbstat table to speed up the queries that
// come later.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE VIRTUAL TABLE __stats__ USING dbstat;"
"CREATE TEMP TABLE __temp_stats__ AS SELECT * FROM __stats__;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Calculate the percentage of the database pages that are not in contiguous
// order.
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING(
"SELECT SUM(__ts1__.pageno != __ts2__.pageno + 1) * 100.0 / COUNT(*) "
"FROM __temp_stats__ AS __ts1__, __temp_stats__ AS __ts2__ "
"WHERE __ts1__.name = __ts2__.name "
"AND __ts1__.rowid = __ts2__.rowid + 1;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
int32_t percentUnordered;
rv = stmt->GetInt32(0, &percentUnordered);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(percentUnordered >= 0);
MOZ_ASSERT(percentUnordered <= 100);
if (percentUnordered >= kPercentUnorderedThreshold) {
*aMaintenanceAction = MaintenanceAction::FullVacuum;
return NS_OK;
}
// Don't try a full vacuum if the file hasn't grown by 10%.
int64_t currentFileSize;
rv = aDatabaseFile->GetFileSize(&currentFileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (currentFileSize <= lastVacuumSize ||
(((currentFileSize - lastVacuumSize) * 100 / currentFileSize) <
kPercentFileSizeGrowthThreshold)) {
*aMaintenanceAction = MaintenanceAction::IncrementalVacuum;
return NS_OK;
}
// See if there are any free pages that we can reclaim.
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("PRAGMA freelist_count;"), getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
int32_t freelistCount;
rv = stmt->GetInt32(0, &freelistCount);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(freelistCount >= 0);
// If we have too many free pages then we should try an incremental vacuum. If
// that causes too much fragmentation then we'll try a full vacuum later.
if (freelistCount > kMaxFreelistThreshold) {
*aMaintenanceAction = MaintenanceAction::IncrementalVacuum;
return NS_OK;
}
// Calculate the percentage of unused bytes on pages in the database.
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("SELECT SUM(unused) * 100.0 / SUM(pgsize) "
"FROM __temp_stats__;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(hasResult);
int32_t percentUnused;
rv = stmt->GetInt32(0, &percentUnused);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(percentUnused >= 0);
MOZ_ASSERT(percentUnused <= 100);
*aMaintenanceAction = percentUnused >= kPercentUnusedThreshold
? MaintenanceAction::FullVacuum
: MaintenanceAction::IncrementalVacuum;
return NS_OK;
}
void DatabaseMaintenance::IncrementalVacuum(
mozIStorageConnection* aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
mMaintenance->IsAborted()) {
return;
}
nsresult rv = aConnection->ExecuteSimpleSQL(
NS_LITERAL_CSTRING("PRAGMA incremental_vacuum;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
}
void DatabaseMaintenance::FullVacuum(mozIStorageConnection* aConnection,
nsIFile* aDatabaseFile) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
MOZ_ASSERT(aDatabaseFile);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
mMaintenance->IsAborted()) {
return;
}
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING("VACUUM;"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
PRTime vacuumTime = PR_Now();
MOZ_ASSERT(vacuumTime > 0);
int64_t fileSize;
rv = aDatabaseFile->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
MOZ_ASSERT(fileSize > 0);
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("UPDATE database "
"SET last_vacuum_time = :time"
", last_vacuum_size = :size;"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("time"), vacuumTime);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("size"), fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
}
void DatabaseMaintenance::RunOnOwningThread() {
AssertIsOnBackgroundThread();
if (mCompleteCallback) {
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToCurrentThread(mCompleteCallback.forget()));
}
mMaintenance->UnregisterDatabaseMaintenance(this);
}
void DatabaseMaintenance::RunOnConnectionThread() {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
PerformMaintenanceOnDatabase();
MOZ_ALWAYS_SUCCEEDS(
mMaintenance->BackgroundThread()->Dispatch(this, NS_DISPATCH_NORMAL));
}
NS_IMETHODIMP
DatabaseMaintenance::Run() {
if (IsOnBackgroundThread()) {
RunOnOwningThread();
} else {
RunOnConnectionThread();
}
return NS_OK;
}
nsresult DatabaseMaintenance::AutoProgressHandler::Register(
mozIStorageConnection* aConnection) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
// We want to quickly bail out of any operation if the user becomes active, so
// use a small granularity here since database performance isn't critical.
static const int32_t kProgressGranularity = 50;
nsCOMPtr<mozIStorageProgressHandler> oldHandler;
nsresult rv = aConnection->SetProgressHandler(kProgressGranularity, this,
getter_AddRefs(oldHandler));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!oldHandler);
mConnection = aConnection;
return NS_OK;
}
void DatabaseMaintenance::AutoProgressHandler::Unregister() {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mConnection);
nsCOMPtr<mozIStorageProgressHandler> oldHandler;
nsresult rv = mConnection->RemoveProgressHandler(getter_AddRefs(oldHandler));
Unused << NS_WARN_IF(NS_FAILED(rv));
MOZ_ASSERT_IF(NS_SUCCEEDED(rv), oldHandler == this);
}
NS_IMETHODIMP_(MozExternalRefCountType)
DatabaseMaintenance::AutoProgressHandler::AddRef() {
NS_ASSERT_OWNINGTHREAD(DatabaseMaintenance::AutoProgressHandler);
#ifdef DEBUG
mDEBUGRefCnt++;
#endif
return 2;
}
NS_IMETHODIMP_(MozExternalRefCountType)
DatabaseMaintenance::AutoProgressHandler::Release() {
NS_ASSERT_OWNINGTHREAD(DatabaseMaintenance::AutoProgressHandler);
#ifdef DEBUG
mDEBUGRefCnt--;
#endif
return 1;
}
NS_IMPL_QUERY_INTERFACE(DatabaseMaintenance::AutoProgressHandler,
mozIStorageProgressHandler)
NS_IMETHODIMP
DatabaseMaintenance::AutoProgressHandler::OnProgress(
mozIStorageConnection* aConnection, bool* _retval) {
NS_ASSERT_OWNINGTHREAD(DatabaseMaintenance::AutoProgressHandler);
MOZ_ASSERT(aConnection);
MOZ_ASSERT(mConnection == aConnection);
MOZ_ASSERT(_retval);
*_retval = mMaintenance->IsAborted();
return NS_OK;
}
/*******************************************************************************
* Local class implementations
******************************************************************************/
NS_IMPL_ISUPPORTS(CompressDataBlobsFunction, mozIStorageFunction)
NS_IMPL_ISUPPORTS(EncodeKeysFunction, mozIStorageFunction)
NS_IMPL_ISUPPORTS(StripObsoleteOriginAttributesFunction, mozIStorageFunction);
nsresult UpgradeFileIdsFunction::Init(nsIFile* aFMDirectory,
mozIStorageConnection* aConnection) {
// This file manager doesn't need real origin info, etc. The only purpose is
// to store file ids without adding more complexity or code duplication.
RefPtr<FileManager> fileManager =
new FileManager(PERSISTENCE_TYPE_INVALID, EmptyCString(), EmptyCString(),
EmptyString(), false);
nsresult rv = fileManager->Init(aFMDirectory, aConnection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mFileManager.swap(fileManager);
return NS_OK;
}
NS_IMPL_ISUPPORTS(UpgradeFileIdsFunction, mozIStorageFunction)
NS_IMETHODIMP
UpgradeFileIdsFunction::OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult) {
MOZ_ASSERT(aArguments);
MOZ_ASSERT(aResult);
MOZ_ASSERT(mFileManager);
AUTO_PROFILER_LABEL("UpgradeFileIdsFunction::OnFunctionCall", DOM);
uint32_t argc;
nsresult rv = aArguments->GetNumEntries(&argc);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (argc != 2) {
NS_WARNING("Don't call me with the wrong number of arguments!");
return NS_ERROR_UNEXPECTED;
}
StructuredCloneReadInfo cloneInfo(JS::StructuredCloneScope::DifferentProcess);
DatabaseOperationBase::GetStructuredCloneReadInfoFromValueArray(
aArguments, 1, 0, mFileManager, &cloneInfo);
nsAutoString fileIds;
rv = IDBObjectStore::DeserializeUpgradeValueToFileIds(cloneInfo, fileIds);
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_DOM_DATA_CLONE_ERR;
}
nsCOMPtr<nsIVariant> result = new mozilla::storage::TextVariant(fileIds);
result.forget(aResult);
return NS_OK;
}
// static
void DatabaseOperationBase::GetBindingClauseForKeyRange(
const SerializedKeyRange& aKeyRange, const nsACString& aKeyColumnName,
nsAutoCString& aBindingClause) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(!aKeyColumnName.IsEmpty());
NS_NAMED_LITERAL_CSTRING(andStr, " AND ");
NS_NAMED_LITERAL_CSTRING(spacecolon, " :");
NS_NAMED_LITERAL_CSTRING(lowerKey, "lower_key");
if (aKeyRange.isOnly()) {
// Both keys equal.
aBindingClause = andStr + aKeyColumnName + NS_LITERAL_CSTRING(" =") +
spacecolon + lowerKey;
return;
}
aBindingClause.Truncate();
if (!aKeyRange.lower().IsUnset()) {
// Lower key is set.
aBindingClause.Append(andStr + aKeyColumnName);
aBindingClause.AppendLiteral(" >");
if (!aKeyRange.lowerOpen()) {
aBindingClause.AppendLiteral("=");
}
aBindingClause.Append(spacecolon + lowerKey);
}
if (!aKeyRange.upper().IsUnset()) {
// Upper key is set.
aBindingClause.Append(andStr + aKeyColumnName);
aBindingClause.AppendLiteral(" <");
if (!aKeyRange.upperOpen()) {
aBindingClause.AppendLiteral("=");
}
aBindingClause.Append(spacecolon + NS_LITERAL_CSTRING("upper_key"));
}
MOZ_ASSERT(!aBindingClause.IsEmpty());
}
// static
uint64_t DatabaseOperationBase::ReinterpretDoubleAsUInt64(double aDouble) {
// This is a duplicate of the js engine's byte munging in StructuredClone.cpp
return BitwiseCast<uint64_t>(aDouble);
}
// static
template <typename T>
nsresult DatabaseOperationBase::GetStructuredCloneReadInfoFromSource(
T* aSource, uint32_t aDataIndex, uint32_t aFileIdsIndex,
FileManager* aFileManager, StructuredCloneReadInfo* aInfo) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aSource);
MOZ_ASSERT(aFileManager);
MOZ_ASSERT(aInfo);
int32_t columnType;
nsresult rv = aSource->GetTypeOfIndex(aDataIndex, &columnType);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(columnType == mozIStorageStatement::VALUE_TYPE_BLOB ||
columnType == mozIStorageStatement::VALUE_TYPE_INTEGER);
bool isNull;
rv = aSource->GetIsNull(aFileIdsIndex, &isNull);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsString fileIds;
if (isNull) {
fileIds.SetIsVoid(true);
} else {
rv = aSource->GetString(aFileIdsIndex, fileIds);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (columnType == mozIStorageStatement::VALUE_TYPE_INTEGER) {
uint64_t intData;
rv = aSource->GetInt64(aDataIndex, reinterpret_cast<int64_t*>(&intData));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = GetStructuredCloneReadInfoFromExternalBlob(intData, aFileManager,
fileIds, aInfo);
} else {
const uint8_t* blobData;
uint32_t blobDataLength;
rv = aSource->GetSharedBlob(aDataIndex, &blobDataLength, &blobData);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = GetStructuredCloneReadInfoFromBlob(blobData, blobDataLength,
aFileManager, fileIds, aInfo);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::GetStructuredCloneReadInfoFromBlob(
const uint8_t* aBlobData, uint32_t aBlobDataLength,
FileManager* aFileManager, const nsAString& aFileIds,
StructuredCloneReadInfo* aInfo) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aFileManager);
MOZ_ASSERT(aInfo);
AUTO_PROFILER_LABEL(
"DatabaseOperationBase::GetStructuredCloneReadInfoFromBlob", DOM);
const char* compressed = reinterpret_cast<const char*>(aBlobData);
size_t compressedLength = size_t(aBlobDataLength);
size_t uncompressedLength;
if (NS_WARN_IF(!snappy::GetUncompressedLength(compressed, compressedLength,
&uncompressedLength))) {
return NS_ERROR_FILE_CORRUPTED;
}
AutoTArray<uint8_t, 512> uncompressed;
if (NS_WARN_IF(!uncompressed.SetLength(uncompressedLength, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
char* uncompressedBuffer = reinterpret_cast<char*>(uncompressed.Elements());
if (NS_WARN_IF(!snappy::RawUncompress(compressed, compressedLength,
uncompressedBuffer))) {
return NS_ERROR_FILE_CORRUPTED;
}
if (!aInfo->mData.AppendBytes(uncompressedBuffer, uncompressed.Length())) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (!aFileIds.IsVoid()) {
nsresult rv = DeserializeStructuredCloneFiles(
aFileManager, aFileIds, aInfo->mFiles, &aInfo->mHasPreprocessInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::GetStructuredCloneReadInfoFromExternalBlob(
uint64_t aIntData, FileManager* aFileManager, const nsAString& aFileIds,
StructuredCloneReadInfo* aInfo) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aFileManager);
MOZ_ASSERT(aInfo);
AUTO_PROFILER_LABEL(
"DatabaseOperationBase::GetStructuredCloneReadInfoFromExternalBlob", DOM);
nsresult rv;
if (!aFileIds.IsVoid()) {
rv = DeserializeStructuredCloneFiles(aFileManager, aFileIds, aInfo->mFiles,
&aInfo->mHasPreprocessInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Higher and lower 32 bits described
// in ObjectStoreAddOrPutRequestOp::DoDatabaseWork.
uint32_t index = uint32_t(aIntData & 0xFFFFFFFF);
if (index >= aInfo->mFiles.Length()) {
MOZ_ASSERT(false, "Bad index value!");
return NS_ERROR_UNEXPECTED;
}
StructuredCloneFile& file = aInfo->mFiles[index];
MOZ_ASSERT(file.mFileInfo);
MOZ_ASSERT(file.mType == StructuredCloneFile::eStructuredClone);
nsCOMPtr<nsIFile> nativeFile = FileInfo::GetFileForFileInfo(file.mFileInfo);
if (NS_WARN_IF(!nativeFile)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIInputStream> fileInputStream;
rv = NS_NewLocalFileInputStream(getter_AddRefs(fileInputStream), nativeFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
RefPtr<SnappyUncompressInputStream> snappyInputStream =
new SnappyUncompressInputStream(fileInputStream);
do {
char buffer[kFileCopyBufferSize];
uint32_t numRead;
rv = snappyInputStream->Read(buffer, sizeof(buffer), &numRead);
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
if (!numRead) {
break;
}
if (NS_WARN_IF(!aInfo->mData.AppendBytes(buffer, numRead))) {
rv = NS_ERROR_OUT_OF_MEMORY;
break;
}
} while (true);
return rv;
}
// static
nsresult DatabaseOperationBase::BindKeyRangeToStatement(
const SerializedKeyRange& aKeyRange, mozIStorageStatement* aStatement) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aStatement);
nsresult rv = NS_OK;
if (!aKeyRange.lower().IsUnset()) {
rv = aKeyRange.lower().BindToStatement(aStatement,
NS_LITERAL_CSTRING("lower_key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (aKeyRange.isOnly()) {
return rv;
}
if (!aKeyRange.upper().IsUnset()) {
rv = aKeyRange.upper().BindToStatement(aStatement,
NS_LITERAL_CSTRING("upper_key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::BindKeyRangeToStatement(
const SerializedKeyRange& aKeyRange, mozIStorageStatement* aStatement,
const nsCString& aLocale) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aStatement);
MOZ_ASSERT(!aLocale.IsEmpty());
nsresult rv = NS_OK;
if (!aKeyRange.lower().IsUnset()) {
Key lower;
rv = aKeyRange.lower().ToLocaleBasedKey(lower, aLocale);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = lower.BindToStatement(aStatement, NS_LITERAL_CSTRING("lower_key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (aKeyRange.isOnly()) {
return rv;
}
if (!aKeyRange.upper().IsUnset()) {
Key upper;
rv = aKeyRange.upper().ToLocaleBasedKey(upper, aLocale);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = upper.BindToStatement(aStatement, NS_LITERAL_CSTRING("upper_key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
// static
void DatabaseOperationBase::AppendConditionClause(const nsACString& aColumnName,
const nsACString& aArgName,
bool aLessThan, bool aEquals,
nsAutoCString& aResult) {
aResult +=
NS_LITERAL_CSTRING(" AND ") + aColumnName + NS_LITERAL_CSTRING(" ");
if (aLessThan) {
aResult.Append('<');
} else {
aResult.Append('>');
}
if (aEquals) {
aResult.Append('=');
}
aResult += NS_LITERAL_CSTRING(" :") + aArgName;
}
// static
nsresult DatabaseOperationBase::GetUniqueIndexTableForObjectStore(
TransactionBase* aTransaction, int64_t aObjectStoreId,
Maybe<UniqueIndexTable>& aMaybeUniqueIndexTable) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(aObjectStoreId);
MOZ_ASSERT(aMaybeUniqueIndexTable.isNothing());
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
aTransaction->GetMetadataForObjectStoreId(aObjectStoreId);
MOZ_ASSERT(objectStoreMetadata);
if (!objectStoreMetadata->mIndexes.Count()) {
return NS_OK;
}
const uint32_t indexCount = objectStoreMetadata->mIndexes.Count();
MOZ_ASSERT(indexCount > 0);
aMaybeUniqueIndexTable.emplace();
UniqueIndexTable* uniqueIndexTable = aMaybeUniqueIndexTable.ptr();
MOZ_ASSERT(uniqueIndexTable);
for (auto iter = objectStoreMetadata->mIndexes.Iter(); !iter.Done();
iter.Next()) {
FullIndexMetadata* value = iter.UserData();
MOZ_ASSERT(!uniqueIndexTable->Get(value->mCommonMetadata.id()));
if (NS_WARN_IF(!uniqueIndexTable->Put(value->mCommonMetadata.id(),
value->mCommonMetadata.unique(),
fallible))) {
break;
}
}
if (NS_WARN_IF(aMaybeUniqueIndexTable.ref().Count() != indexCount)) {
IDB_REPORT_INTERNAL_ERR();
aMaybeUniqueIndexTable.reset();
NS_WARNING("out of memory");
return NS_ERROR_OUT_OF_MEMORY;
}
#ifdef DEBUG
aMaybeUniqueIndexTable.ref().MarkImmutable();
#endif
return NS_OK;
}
// static
nsresult DatabaseOperationBase::IndexDataValuesFromUpdateInfos(
const nsTArray<IndexUpdateInfo>& aUpdateInfos,
const UniqueIndexTable& aUniqueIndexTable,
nsTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(aIndexValues.IsEmpty());
MOZ_ASSERT_IF(!aUpdateInfos.IsEmpty(), aUniqueIndexTable.Count());
AUTO_PROFILER_LABEL("DatabaseOperationBase::IndexDataValuesFromUpdateInfos",
DOM);
const uint32_t count = aUpdateInfos.Length();
if (!count) {
return NS_OK;
}
if (NS_WARN_IF(!aIndexValues.SetCapacity(count, fallible))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
for (uint32_t idxIndex = 0; idxIndex < count; idxIndex++) {
const IndexUpdateInfo& updateInfo = aUpdateInfos[idxIndex];
const int64_t& indexId = updateInfo.indexId();
const Key& key = updateInfo.value();
const Key& sortKey = updateInfo.localizedValue();
bool unique = false;
MOZ_ALWAYS_TRUE(aUniqueIndexTable.Get(indexId, &unique));
IndexDataValue idv(indexId, unique, key, sortKey);
MOZ_ALWAYS_TRUE(aIndexValues.InsertElementSorted(idv, fallible));
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::InsertIndexTableRows(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
const Key& aObjectStoreKey,
const FallibleTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(!aObjectStoreKey.IsUnset());
AUTO_PROFILER_LABEL("DatabaseOperationBase::InsertIndexTableRows", DOM);
const uint32_t count = aIndexValues.Length();
if (!count) {
return NS_OK;
}
NS_NAMED_LITERAL_CSTRING(objectStoreIdString, "object_store_id");
NS_NAMED_LITERAL_CSTRING(objectDataKeyString, "object_data_key");
NS_NAMED_LITERAL_CSTRING(indexIdString, "index_id");
NS_NAMED_LITERAL_CSTRING(valueString, "value");
NS_NAMED_LITERAL_CSTRING(valueLocaleString, "value_locale");
DatabaseConnection::CachedStatement insertUniqueStmt;
DatabaseConnection::CachedStatement insertStmt;
nsresult rv;
for (uint32_t index = 0; index < count; index++) {
const IndexDataValue& info = aIndexValues[index];
DatabaseConnection::CachedStatement& stmt =
info.mUnique ? insertUniqueStmt : insertStmt;
if (stmt) {
stmt.Reset();
} else if (info.mUnique) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("INSERT INTO unique_index_data "
"(index_id, value, object_store_id, "
"object_data_key, value_locale) "
"VALUES (:index_id, :value, :object_store_id, "
":object_data_key, :value_locale);"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("INSERT OR IGNORE INTO index_data "
"(index_id, value, object_data_key, "
"object_store_id, value_locale) "
"VALUES (:index_id, :value, :object_data_key, "
":object_store_id, :value_locale);"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = stmt->BindInt64ByName(indexIdString, info.mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = info.mKey.BindToStatement(stmt, valueString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = info.mSortKey.BindToStatement(stmt, valueLocaleString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(objectStoreIdString, aObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aObjectStoreKey.BindToStatement(stmt, objectDataKeyString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (rv == NS_ERROR_STORAGE_CONSTRAINT && info.mUnique) {
// If we're inserting multiple entries for the same unique index, then
// we might have failed to insert due to colliding with another entry for
// the same index in which case we should ignore it.
for (int32_t index2 = int32_t(index) - 1;
index2 >= 0 && aIndexValues[index2].mIndexId == info.mIndexId;
--index2) {
if (info.mKey == aIndexValues[index2].mKey) {
// We found a key with the same value for the same index. So we
// must have had a collision with a value we just inserted.
rv = NS_OK;
break;
}
}
}
if (NS_FAILED(rv)) {
return rv;
}
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::DeleteIndexDataTableRows(
DatabaseConnection* aConnection, const Key& aObjectStoreKey,
const FallibleTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(!aObjectStoreKey.IsUnset());
AUTO_PROFILER_LABEL("DatabaseOperationBase::DeleteIndexDataTableRows", DOM);
const uint32_t count = aIndexValues.Length();
if (!count) {
return NS_OK;
}
NS_NAMED_LITERAL_CSTRING(indexIdString, "index_id");
NS_NAMED_LITERAL_CSTRING(valueString, "value");
NS_NAMED_LITERAL_CSTRING(objectDataKeyString, "object_data_key");
DatabaseConnection::CachedStatement deleteUniqueStmt;
DatabaseConnection::CachedStatement deleteStmt;
nsresult rv;
for (uint32_t index = 0; index < count; index++) {
const IndexDataValue& indexValue = aIndexValues[index];
DatabaseConnection::CachedStatement& stmt =
indexValue.mUnique ? deleteUniqueStmt : deleteStmt;
if (stmt) {
stmt.Reset();
} else if (indexValue.mUnique) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM unique_index_data "
"WHERE index_id = :index_id "
"AND value = :value;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM index_data "
"WHERE index_id = :index_id "
"AND value = :value "
"AND object_data_key = :object_data_key;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = stmt->BindInt64ByName(indexIdString, indexValue.mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = indexValue.mKey.BindToStatement(stmt, valueString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!indexValue.mUnique) {
rv = aObjectStoreKey.BindToStatement(stmt, objectDataKeyString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::DeleteObjectStoreDataTableRowsWithIndexes(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
const OptionalKeyRange& aKeyRange) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(aObjectStoreId);
#ifdef DEBUG
{
bool hasIndexes = false;
MOZ_ASSERT(NS_SUCCEEDED(
ObjectStoreHasIndexes(aConnection, aObjectStoreId, &hasIndexes)));
MOZ_ASSERT(hasIndexes,
"Don't use this slow method if there are no indexes!");
}
#endif
AUTO_PROFILER_LABEL(
"DatabaseOperationBase::DeleteObjectStoreDataTableRowsWithIndexes", DOM);
const bool singleRowOnly =
aKeyRange.type() == OptionalKeyRange::TSerializedKeyRange &&
aKeyRange.get_SerializedKeyRange().isOnly();
NS_NAMED_LITERAL_CSTRING(objectStoreIdString, "object_store_id");
NS_NAMED_LITERAL_CSTRING(keyString, "key");
nsresult rv;
Key objectStoreKey;
DatabaseConnection::CachedStatement selectStmt;
if (singleRowOnly) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT index_data_values "
"FROM object_data "
"WHERE object_store_id = :object_store_id "
"AND key = :key;"),
&selectStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
objectStoreKey = aKeyRange.get_SerializedKeyRange().lower();
rv = objectStoreKey.BindToStatement(selectStmt, keyString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
nsAutoCString keyRangeClause;
if (aKeyRange.type() == OptionalKeyRange::TSerializedKeyRange) {
GetBindingClauseForKeyRange(aKeyRange.get_SerializedKeyRange(), keyString,
keyRangeClause);
}
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT index_data_values, key "
"FROM object_data "
"WHERE object_store_id = :") +
objectStoreIdString + keyRangeClause + NS_LITERAL_CSTRING(";"),
&selectStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (aKeyRange.type() == OptionalKeyRange::TSerializedKeyRange) {
rv = BindKeyRangeToStatement(aKeyRange, selectStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
rv = selectStmt->BindInt64ByName(objectStoreIdString, aObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement deleteStmt;
AutoTArray<IndexDataValue, 32> indexValues;
DebugOnly<uint32_t> resultCountDEBUG = 0;
bool hasResult;
while (NS_SUCCEEDED(rv = selectStmt->ExecuteStep(&hasResult)) && hasResult) {
if (!singleRowOnly) {
rv = objectStoreKey.SetFromStatement(selectStmt, 1);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
indexValues.ClearAndRetainStorage();
}
rv = ReadCompressedIndexDataValues(selectStmt, 0, indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = DeleteIndexDataTableRows(aConnection, objectStoreKey, indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (deleteStmt) {
MOZ_ALWAYS_SUCCEEDS(deleteStmt->Reset());
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_data "
"WHERE object_store_id = :object_store_id "
"AND key = :key;"),
&deleteStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = deleteStmt->BindInt64ByName(objectStoreIdString, aObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = objectStoreKey.BindToStatement(deleteStmt, keyString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = deleteStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
resultCountDEBUG++;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT_IF(singleRowOnly, resultCountDEBUG <= 1);
return NS_OK;
}
// static
nsresult DatabaseOperationBase::UpdateIndexValues(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
const Key& aObjectStoreKey,
const FallibleTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(!aObjectStoreKey.IsUnset());
AUTO_PROFILER_LABEL("DatabaseOperationBase::UpdateIndexValues", DOM);
UniqueFreePtr<uint8_t> indexDataValues;
uint32_t indexDataValuesLength;
nsresult rv = MakeCompressedIndexDataValues(aIndexValues, indexDataValues,
&indexDataValuesLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!indexDataValuesLength == !(indexDataValues.get()));
DatabaseConnection::CachedStatement updateStmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE object_data "
"SET index_data_values = :index_data_values "
"WHERE object_store_id = :object_store_id "
"AND key = :key;"),
&updateStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
NS_NAMED_LITERAL_CSTRING(indexDataValuesString, "index_data_values");
if (indexDataValues) {
rv = updateStmt->BindAdoptedBlobByName(indexDataValuesString,
indexDataValues.release(),
indexDataValuesLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
rv = updateStmt->BindNullByName(indexDataValuesString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = updateStmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
aObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aObjectStoreKey.BindToStatement(updateStmt, NS_LITERAL_CSTRING("key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = updateStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// static
nsresult DatabaseOperationBase::ObjectStoreHasIndexes(
DatabaseConnection* aConnection, const int64_t aObjectStoreId,
bool* aHasIndexes) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(aObjectStoreId);
MOZ_ASSERT(aHasIndexes);
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT id "
"FROM object_store_index "
"WHERE object_store_id = :object_store_id "
"LIMIT 1;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
aObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
*aHasIndexes = hasResult;
return NS_OK;
}
NS_IMPL_ISUPPORTS_INHERITED(DatabaseOperationBase, Runnable,
mozIStorageProgressHandler)
NS_IMETHODIMP
DatabaseOperationBase::OnProgress(mozIStorageConnection* aConnection,
bool* _retval) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
MOZ_ASSERT(_retval);
// This is intentionally racy.
*_retval = !OperationMayProceed();
return NS_OK;
}
DatabaseOperationBase::AutoSetProgressHandler::AutoSetProgressHandler()
: mConnection(nullptr)
#ifdef DEBUG
,
mDEBUGDatabaseOp(nullptr)
#endif
{
MOZ_ASSERT(!IsOnBackgroundThread());
}
DatabaseOperationBase::AutoSetProgressHandler::~AutoSetProgressHandler() {
MOZ_ASSERT(!IsOnBackgroundThread());
if (mConnection) {
Unregister();
}
}
nsresult DatabaseOperationBase::AutoSetProgressHandler::Register(
mozIStorageConnection* aConnection, DatabaseOperationBase* aDatabaseOp) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
MOZ_ASSERT(aDatabaseOp);
MOZ_ASSERT(!mConnection);
nsCOMPtr<mozIStorageProgressHandler> oldProgressHandler;
nsresult rv =
aConnection->SetProgressHandler(kStorageProgressGranularity, aDatabaseOp,
getter_AddRefs(oldProgressHandler));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!oldProgressHandler);
mConnection = aConnection;
#ifdef DEBUG
mDEBUGDatabaseOp = aDatabaseOp;
#endif
return NS_OK;
}
void DatabaseOperationBase::AutoSetProgressHandler::Unregister() {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mConnection);
nsCOMPtr<mozIStorageProgressHandler> oldHandler;
MOZ_ALWAYS_SUCCEEDS(
mConnection->RemoveProgressHandler(getter_AddRefs(oldHandler)));
MOZ_ASSERT(oldHandler == mDEBUGDatabaseOp);
mConnection = nullptr;
}
MutableFile::MutableFile(nsIFile* aFile, Database* aDatabase,
FileInfo* aFileInfo)
: BackgroundMutableFileParentBase(FILE_HANDLE_STORAGE_IDB, aDatabase->Id(),
IntString(aFileInfo->Id()), aFile),
mDatabase(aDatabase),
mFileInfo(aFileInfo) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabase);
MOZ_ASSERT(aFileInfo);
}
MutableFile::~MutableFile() { mDatabase->UnregisterMutableFile(this); }
already_AddRefed<MutableFile> MutableFile::Create(nsIFile* aFile,
Database* aDatabase,
FileInfo* aFileInfo) {
AssertIsOnBackgroundThread();
RefPtr<MutableFile> newMutableFile =
new MutableFile(aFile, aDatabase, aFileInfo);
if (!aDatabase->RegisterMutableFile(newMutableFile)) {
return nullptr;
}
return newMutableFile.forget();
}
void MutableFile::NoteActiveState() {
AssertIsOnBackgroundThread();
mDatabase->NoteActiveMutableFile();
}
void MutableFile::NoteInactiveState() {
AssertIsOnBackgroundThread();
mDatabase->NoteInactiveMutableFile();
}
PBackgroundParent* MutableFile::GetBackgroundParent() const {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!IsActorDestroyed());
return GetDatabase()->GetBackgroundParent();
}
already_AddRefed<nsISupports> MutableFile::CreateStream(bool aReadOnly) {
AssertIsOnBackgroundThread();
PersistenceType persistenceType = mDatabase->Type();
const nsACString& group = mDatabase->Group();
const nsACString& origin = mDatabase->Origin();
nsCOMPtr<nsISupports> result;
if (aReadOnly) {
RefPtr<FileInputStream> stream =
CreateFileInputStream(persistenceType, group, origin, mFile, -1, -1,
nsIFileInputStream::DEFER_OPEN);
result = NS_ISUPPORTS_CAST(nsIFileInputStream*, stream);
} else {
RefPtr<FileStream> stream =
CreateFileStream(persistenceType, group, origin, mFile, -1, -1,
nsIFileStream::DEFER_OPEN);
result = NS_ISUPPORTS_CAST(nsIFileStream*, stream);
}
if (NS_WARN_IF(!result)) {
return nullptr;
}
return result.forget();
}
already_AddRefed<BlobImpl> MutableFile::CreateBlobImpl() {
AssertIsOnBackgroundThread();
RefPtr<FileBlobImpl> blobImpl = new FileBlobImpl(mFile);
blobImpl->SetFileId(mFileInfo->Id());
return blobImpl.forget();
}
PBackgroundFileHandleParent* MutableFile::AllocPBackgroundFileHandleParent(
const FileMode& aMode) {
AssertIsOnBackgroundThread();
// Once a database is closed it must not try to open new file handles.
if (NS_WARN_IF(mDatabase->IsClosed())) {
if (!mDatabase->IsInvalidated()) {
ASSERT_UNLESS_FUZZING();
}
return nullptr;
}
if (!gFileHandleThreadPool) {
RefPtr<FileHandleThreadPool> fileHandleThreadPool =
FileHandleThreadPool::Create();
if (NS_WARN_IF(!fileHandleThreadPool)) {
return nullptr;
}
gFileHandleThreadPool = fileHandleThreadPool;
}
return BackgroundMutableFileParentBase::AllocPBackgroundFileHandleParent(
aMode);
}
mozilla::ipc::IPCResult MutableFile::RecvPBackgroundFileHandleConstructor(
PBackgroundFileHandleParent* aActor, const FileMode& aMode) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mDatabase->IsClosed());
if (NS_WARN_IF(mDatabase->IsInvalidated())) {
// This is an expected race. We don't want the child to die here, just don't
// actually do any work.
return IPC_OK();
}
return BackgroundMutableFileParentBase::RecvPBackgroundFileHandleConstructor(
aActor, aMode);
}
mozilla::ipc::IPCResult MutableFile::RecvGetFileId(int64_t* aFileId) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mFileInfo);
if (NS_WARN_IF(!IndexedDatabaseManager::InTestingMode())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
*aFileId = mFileInfo->Id();
return IPC_OK();
}
FactoryOp::FactoryOp(Factory* aFactory,
already_AddRefed<ContentParent> aContentParent,
const CommonFactoryRequestParams& aCommonParams,
bool aDeleting)
: DatabaseOperationBase(aFactory->GetLoggingInfo()->Id(),
aFactory->GetLoggingInfo()->NextRequestSN()),
mFactory(aFactory),
mContentParent(std::move(aContentParent)),
mCommonParams(aCommonParams),
mState(State::Initial),
mEnforcingQuota(true),
mDeleting(aDeleting),
mChromeWriteAccessAllowed(false),
mFileHandleDisabled(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aFactory);
MOZ_ASSERT(!QuotaClient::IsShuttingDownOnBackgroundThread());
}
nsresult FactoryOp::Open() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mState == State::Initial);
// Swap this to the stack now to ensure that we release it on this thread.
RefPtr<ContentParent> contentParent;
mContentParent.swap(contentParent);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
PermissionRequestBase::PermissionValue permission;
nsresult rv = CheckPermission(contentParent, &permission);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(permission == PermissionRequestBase::kPermissionAllowed ||
permission == PermissionRequestBase::kPermissionDenied ||
permission == PermissionRequestBase::kPermissionPrompt);
if (permission == PermissionRequestBase::kPermissionDenied) {
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
{
// These services have to be started on the main thread currently.
IndexedDatabaseManager* mgr;
if (NS_WARN_IF(!(mgr = IndexedDatabaseManager::GetOrCreate()))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsCOMPtr<mozIStorageService> ss;
if (NS_WARN_IF(!(ss = do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID)))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
const DatabaseMetadata& metadata = mCommonParams.metadata();
QuotaManager::GetStorageId(metadata.persistenceType(), mOrigin, Client::IDB,
mDatabaseId);
mDatabaseId.Append('*');
mDatabaseId.Append(NS_ConvertUTF16toUTF8(metadata.name()));
if (permission == PermissionRequestBase::kPermissionPrompt) {
mState = State::PermissionChallenge;
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
MOZ_ASSERT(permission == PermissionRequestBase::kPermissionAllowed);
mState = State::FinishOpen;
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
nsresult FactoryOp::ChallengePermission() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::PermissionChallenge);
const PrincipalInfo& principalInfo = mCommonParams.principalInfo();
MOZ_ASSERT(principalInfo.type() == PrincipalInfo::TContentPrincipalInfo);
if (NS_WARN_IF(!SendPermissionChallenge(principalInfo))) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult FactoryOp::RetryCheckPermission() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mState == State::PermissionRetry);
MOZ_ASSERT(mCommonParams.principalInfo().type() ==
PrincipalInfo::TContentPrincipalInfo);
// Swap this to the stack now to ensure that we release it on this thread.
RefPtr<ContentParent> contentParent;
mContentParent.swap(contentParent);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
PermissionRequestBase::PermissionValue permission;
nsresult rv = CheckPermission(contentParent, &permission);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(permission == PermissionRequestBase::kPermissionAllowed ||
permission == PermissionRequestBase::kPermissionDenied ||
permission == PermissionRequestBase::kPermissionPrompt);
if (permission == PermissionRequestBase::kPermissionDenied ||
permission == PermissionRequestBase::kPermissionPrompt) {
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
MOZ_ASSERT(permission == PermissionRequestBase::kPermissionAllowed);
mState = State::FinishOpen;
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
return NS_OK;
}
nsresult FactoryOp::DirectoryOpen() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DirectoryOpenPending);
MOZ_ASSERT(mDirectoryLock);
MOZ_ASSERT(!mDatabaseFilePath.IsEmpty());
MOZ_ASSERT(gFactoryOps);
// See if this FactoryOp needs to wait.
bool delayed = false;
bool foundThis = false;
for (uint32_t index = gFactoryOps->Length(); index > 0; index--) {
RefPtr<FactoryOp>& existingOp = (*gFactoryOps)[index - 1];
if (existingOp == this) {
foundThis = true;
continue;
}
if (foundThis && MustWaitFor(*existingOp)) {
// Only one op can be delayed.
MOZ_ASSERT(!existingOp->mDelayedOp);
existingOp->mDelayedOp = this;
delayed = true;
break;
}
}
if (!delayed) {
QuotaClient* quotaClient = QuotaClient::GetInstance();
MOZ_ASSERT(quotaClient);
if (RefPtr<Maintenance> currentMaintenance =
quotaClient->GetCurrentMaintenance()) {
if (RefPtr<DatabaseMaintenance> databaseMaintenance =
currentMaintenance->GetDatabaseMaintenance(mDatabaseFilePath)) {
databaseMaintenance->WaitForCompletion(this);
delayed = true;
}
}
}
mState = State::DatabaseOpenPending;
if (!delayed) {
nsresult rv = DatabaseOpen();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
nsresult FactoryOp::SendToIOThread() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DatabaseOpenPending);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
// Must set this before dispatching otherwise we will race with the IO thread.
mState = State::DatabaseWorkOpen;
nsresult rv = quotaManager->IOThread()->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
void FactoryOp::WaitForTransactions() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::BeginVersionChange ||
mState == State::WaitingForOtherDatabasesToClose);
MOZ_ASSERT(!mDatabaseId.IsEmpty());
MOZ_ASSERT(!IsActorDestroyed());
mState = State::WaitingForTransactionsToComplete;
RefPtr<WaitForTransactionsHelper> helper =
new WaitForTransactionsHelper(mDatabaseId, this);
helper->WaitForTransactions();
}
void FactoryOp::CleanupMetadata() {
AssertIsOnOwningThread();
if (mDelayedOp) {
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToCurrentThread(mDelayedOp.forget()));
}
MOZ_ASSERT(gFactoryOps);
gFactoryOps->RemoveElement(this);
// Match the IncreaseBusyCount in AllocPBackgroundIDBFactoryRequestParent().
DecreaseBusyCount();
}
void FactoryOp::FinishSendResults() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::SendingResults);
MOZ_ASSERT(mFactory);
// Make sure to release the factory on this thread.
RefPtr<Factory> factory;
mFactory.swap(factory);
mState = State::Completed;
}
nsresult FactoryOp::CheckPermission(
ContentParent* aContentParent,
PermissionRequestBase::PermissionValue* aPermission) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mState == State::Initial || mState == State::PermissionRetry);
const PrincipalInfo& principalInfo = mCommonParams.principalInfo();
if (principalInfo.type() != PrincipalInfo::TSystemPrincipalInfo) {
if (principalInfo.type() != PrincipalInfo::TContentPrincipalInfo) {
if (aContentParent) {
// We just want ContentPrincipalInfo or SystemPrincipalInfo.
aContentParent->KillHard("IndexedDB CheckPermission 0");
}
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
if (NS_WARN_IF(!Preferences::GetBool(kPrefIndexedDBEnabled, false))) {
if (aContentParent) {
// The DOM in the other process should have kept us from receiving any
// indexedDB messages so assume that the child is misbehaving.
aContentParent->KillHard("IndexedDB CheckPermission 1");
}
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
const ContentPrincipalInfo& contentPrincipalInfo =
principalInfo.get_ContentPrincipalInfo();
if (contentPrincipalInfo.attrs().mPrivateBrowsingId != 0) {
// IndexedDB is currently disabled in privateBrowsing.
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
}
mFileHandleDisabled = !Preferences::GetBool(kPrefFileHandleEnabled);
PersistenceType persistenceType = mCommonParams.metadata().persistenceType();
MOZ_ASSERT(principalInfo.type() != PrincipalInfo::TNullPrincipalInfo);
if (principalInfo.type() == PrincipalInfo::TSystemPrincipalInfo) {
MOZ_ASSERT(mState == State::Initial);
MOZ_ASSERT(persistenceType == PERSISTENCE_TYPE_PERSISTENT);
if (aContentParent) {
// Check to make sure that the child process has access to the database it
// is accessing.
NS_NAMED_LITERAL_CSTRING(permissionStringBase,
PERMISSION_STRING_CHROME_BASE);
NS_ConvertUTF16toUTF8 databaseName(mCommonParams.metadata().name());
NS_NAMED_LITERAL_CSTRING(readSuffix,
PERMISSION_STRING_CHROME_READ_SUFFIX);
NS_NAMED_LITERAL_CSTRING(writeSuffix,
PERMISSION_STRING_CHROME_WRITE_SUFFIX);
const nsAutoCString permissionStringWrite =
permissionStringBase + databaseName + writeSuffix;
const nsAutoCString permissionStringRead =
permissionStringBase + databaseName + readSuffix;
bool canWrite = CheckAtLeastOneAppHasPermission(aContentParent,
permissionStringWrite);
bool canRead;
if (canWrite) {
MOZ_ASSERT(CheckAtLeastOneAppHasPermission(aContentParent,
permissionStringRead));
canRead = true;
} else {
canRead = CheckAtLeastOneAppHasPermission(aContentParent,
permissionStringRead);
}
// Deleting a database requires write permissions.
if (mDeleting && !canWrite) {
aContentParent->KillHard("IndexedDB CheckPermission 2");
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
// Opening or deleting requires read permissions.
if (!canRead) {
aContentParent->KillHard("IndexedDB CheckPermission 3");
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mChromeWriteAccessAllowed = canWrite;
} else {
mChromeWriteAccessAllowed = true;
}
if (State::Initial == mState) {
QuotaManager::GetInfoForChrome(&mSuffix, &mGroup, &mOrigin);
MOZ_ASSERT(QuotaManager::IsOriginInternal(mOrigin));
mEnforcingQuota = false;
}
*aPermission = PermissionRequestBase::kPermissionAllowed;
return NS_OK;
}
MOZ_ASSERT(principalInfo.type() == PrincipalInfo::TContentPrincipalInfo);
nsresult rv;
nsCOMPtr<nsIPrincipal> principal =
PrincipalInfoToPrincipal(principalInfo, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCString suffix;
nsCString group;
nsCString origin;
rv = QuotaManager::GetInfoFromPrincipal(principal, &suffix, &group, &origin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
PermissionRequestBase::PermissionValue permission;
if (persistenceType == PERSISTENCE_TYPE_PERSISTENT) {
if (QuotaManager::IsOriginInternal(origin)) {
permission = PermissionRequestBase::kPermissionAllowed;
} else {
#ifdef IDB_MOBILE
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
#else
rv = PermissionRequestBase::GetCurrentPermission(principal, &permission);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#endif
}
} else {
permission = PermissionRequestBase::kPermissionAllowed;
}
if (permission != PermissionRequestBase::kPermissionDenied &&
State::Initial == mState) {
mSuffix = suffix;
mGroup = group;
mOrigin = origin;
mEnforcingQuota = persistenceType != PERSISTENCE_TYPE_PERSISTENT;
}
*aPermission = permission;
return NS_OK;
}
nsresult FactoryOp::SendVersionChangeMessages(
DatabaseActorInfo* aDatabaseActorInfo, Database* aOpeningDatabase,
uint64_t aOldVersion, const NullableVersion& aNewVersion) {
AssertIsOnOwningThread();
MOZ_ASSERT(aDatabaseActorInfo);
MOZ_ASSERT(mState == State::BeginVersionChange);
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
MOZ_ASSERT(!IsActorDestroyed());
const uint32_t expectedCount = mDeleting ? 0 : 1;
const uint32_t liveCount = aDatabaseActorInfo->mLiveDatabases.Length();
if (liveCount > expectedCount) {
FallibleTArray<MaybeBlockedDatabaseInfo> maybeBlockedDatabases;
for (uint32_t index = 0; index < liveCount; index++) {
Database* database = aDatabaseActorInfo->mLiveDatabases[index];
if ((!aOpeningDatabase || database != aOpeningDatabase) &&
!database->IsClosed() &&
NS_WARN_IF(
!maybeBlockedDatabases.AppendElement(database, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
if (!maybeBlockedDatabases.IsEmpty()) {
mMaybeBlockedDatabases.SwapElements(maybeBlockedDatabases);
}
}
if (!mMaybeBlockedDatabases.IsEmpty()) {
for (uint32_t count = mMaybeBlockedDatabases.Length(), index = 0;
index < count;
/* incremented conditionally */) {
if (mMaybeBlockedDatabases[index]->SendVersionChange(aOldVersion,
aNewVersion)) {
index++;
} else {
// We don't want to wait forever if we were not able to send the
// message.
mMaybeBlockedDatabases.RemoveElementAt(index);
count--;
}
}
}
return NS_OK;
}
// static
bool FactoryOp::CheckAtLeastOneAppHasPermission(
ContentParent* aContentParent, const nsACString& aPermissionString) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aContentParent);
MOZ_ASSERT(!aPermissionString.IsEmpty());
return true;
}
nsresult FactoryOp::FinishOpen() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::FinishOpen);
MOZ_ASSERT(!mContentParent);
if (QuotaManager::Get()) {
nsresult rv = OpenDirectory();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
mState = State::QuotaManagerPending;
QuotaManager::GetOrCreate(this);
return NS_OK;
}
nsresult FactoryOp::QuotaManagerOpen() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::QuotaManagerPending);
if (NS_WARN_IF(!QuotaManager::Get())) {
return NS_ERROR_FAILURE;
}
nsresult rv = OpenDirectory();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult FactoryOp::OpenDirectory() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::FinishOpen ||
mState == State::QuotaManagerPending);
MOZ_ASSERT(!mOrigin.IsEmpty());
MOZ_ASSERT(!mDirectoryLock);
MOZ_ASSERT(!QuotaClient::IsShuttingDownOnBackgroundThread());
MOZ_ASSERT(QuotaManager::Get());
// Need to get database file path in advance.
const nsString& databaseName = mCommonParams.metadata().name();
PersistenceType persistenceType = mCommonParams.metadata().persistenceType();
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsCOMPtr<nsIFile> dbFile;
nsresult rv = quotaManager->GetDirectoryForOrigin(persistenceType, mOrigin,
getter_AddRefs(dbFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = dbFile->Append(NS_LITERAL_STRING(IDB_DIRECTORY_NAME));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoString filename;
GetDatabaseFilename(databaseName, filename);
rv = dbFile->Append(filename + NS_LITERAL_STRING(".sqlite"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = dbFile->GetPath(mDatabaseFilePath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mState = State::DirectoryOpenPending;
quotaManager->OpenDirectory(persistenceType, mGroup, mOrigin, Client::IDB,
/* aExclusive */ false, this);
return NS_OK;
}
bool FactoryOp::MustWaitFor(const FactoryOp& aExistingOp) {
AssertIsOnOwningThread();
// Things for the same persistence type, the same origin and the same
// database must wait.
return aExistingOp.mCommonParams.metadata().persistenceType() ==
mCommonParams.metadata().persistenceType() &&
aExistingOp.mOrigin == mOrigin &&
aExistingOp.mDatabaseId == mDatabaseId;
}
void FactoryOp::NoteDatabaseBlocked(Database* aDatabase) {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::WaitingForOtherDatabasesToClose);
MOZ_ASSERT(!mMaybeBlockedDatabases.IsEmpty());
MOZ_ASSERT(mMaybeBlockedDatabases.Contains(aDatabase));
// Only send the blocked event if all databases have reported back. If the
// database was closed then it will have been removed from the array.
// Otherwise if it was blocked its |mBlocked| flag will be true.
bool sendBlockedEvent = true;
for (uint32_t count = mMaybeBlockedDatabases.Length(), index = 0;
index < count; index++) {
MaybeBlockedDatabaseInfo& info = mMaybeBlockedDatabases[index];
if (info == aDatabase) {
// This database was blocked, mark accordingly.
info.mBlocked = true;
} else if (!info.mBlocked) {
// A database has not yet reported back yet, don't send the event yet.
sendBlockedEvent = false;
}
}
if (sendBlockedEvent) {
SendBlockedNotification();
}
}
NS_IMPL_ISUPPORTS_INHERITED0(FactoryOp, DatabaseOperationBase)
// Run() assumes that the caller holds a strong reference to the object that
// can't be cleared while Run() is being executed.
// So if you call Run() directly (as opposed to dispatching to an event queue)
// you need to make sure there's such a reference.
// See bug 1356824 for more details.
NS_IMETHODIMP
FactoryOp::Run() {
nsresult rv;
switch (mState) {
case State::Initial:
rv = Open();
break;
case State::PermissionChallenge:
rv = ChallengePermission();
break;
case State::PermissionRetry:
rv = RetryCheckPermission();
break;
case State::FinishOpen:
rv = FinishOpen();
break;
case State::QuotaManagerPending:
rv = QuotaManagerOpen();
break;
case State::DatabaseOpenPending:
rv = DatabaseOpen();
break;
case State::DatabaseWorkOpen:
rv = DoDatabaseWork();
break;
case State::BeginVersionChange:
rv = BeginVersionChange();
break;
case State::WaitingForTransactionsToComplete:
rv = DispatchToWorkThread();
break;
case State::SendingResults:
SendResults();
return NS_OK;
default:
MOZ_CRASH("Bad state!");
}
if (NS_WARN_IF(NS_FAILED(rv)) && mState != State::SendingResults) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
// Must set mState before dispatching otherwise we will race with the owning
// thread.
mState = State::SendingResults;
if (IsOnOwningThread()) {
SendResults();
} else {
MOZ_ALWAYS_SUCCEEDS(
mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
}
}
return NS_OK;
}
void FactoryOp::DirectoryLockAcquired(DirectoryLock* aLock) {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DirectoryOpenPending);
MOZ_ASSERT(!mDirectoryLock);
mDirectoryLock = aLock;
nsresult rv = DirectoryOpen();
if (NS_WARN_IF(NS_FAILED(rv))) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
// The caller holds a strong reference to us, no need for a self reference
// before calling Run().
mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(Run());
return;
}
}
void FactoryOp::DirectoryLockFailed() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DirectoryOpenPending);
MOZ_ASSERT(!mDirectoryLock);
if (NS_SUCCEEDED(mResultCode)) {
IDB_REPORT_INTERNAL_ERR();
mResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
// The caller holds a strong reference to us, no need for a self reference
// before calling Run().
mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(Run());
}
void FactoryOp::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
NoteActorDestroyed();
}
mozilla::ipc::IPCResult FactoryOp::RecvPermissionRetry() {
AssertIsOnOwningThread();
MOZ_ASSERT(!IsActorDestroyed());
MOZ_ASSERT(mState == State::PermissionChallenge);
mContentParent = BackgroundParent::GetContentParent(Manager()->Manager());
mState = State::PermissionRetry;
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(this));
return IPC_OK();
}
OpenDatabaseOp::OpenDatabaseOp(Factory* aFactory,
already_AddRefed<ContentParent> aContentParent,
const CommonFactoryRequestParams& aParams)
: FactoryOp(aFactory, std::move(aContentParent), aParams,
/* aDeleting */ false),
mMetadata(new FullDatabaseMetadata(aParams.metadata())),
mRequestedVersion(aParams.metadata().version()),
mVersionChangeOp(nullptr),
mTelemetryId(0) {
if (mContentParent) {
// This is a little scary but it looks safe to call this off the main thread
// for now.
mOptionalContentParentId = Some(mContentParent->ChildID());
}
}
void OpenDatabaseOp::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnOwningThread();
FactoryOp::ActorDestroy(aWhy);
if (mVersionChangeOp) {
mVersionChangeOp->NoteActorDestroyed();
}
}
nsresult OpenDatabaseOp::DatabaseOpen() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DatabaseOpenPending);
nsresult rv = SendToIOThread();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult OpenDatabaseOp::DoDatabaseWork() {
AssertIsOnIOThread();
MOZ_ASSERT(mState == State::DatabaseWorkOpen);
AUTO_PROFILER_LABEL("OpenDatabaseOp::DoDatabaseWork", DOM);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
const nsString& databaseName = mCommonParams.metadata().name();
PersistenceType persistenceType = mCommonParams.metadata().persistenceType();
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsCOMPtr<nsIFile> dbDirectory;
nsresult rv = quotaManager->EnsureOriginIsInitialized(
persistenceType, mSuffix, mGroup, mOrigin,
/* aCreateIfNotExists */ true, getter_AddRefs(dbDirectory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = dbDirectory->Append(NS_LITERAL_STRING(IDB_DIRECTORY_NAME));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool exists;
rv = dbDirectory->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
rv = dbDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
#ifdef DEBUG
else {
bool isDirectory;
MOZ_ASSERT(NS_SUCCEEDED(dbDirectory->IsDirectory(&isDirectory)));
MOZ_ASSERT(isDirectory);
}
#endif
nsAutoString filename;
GetDatabaseFilename(databaseName, filename);
nsCOMPtr<nsIFile> markerFile;
rv = dbDirectory->Clone(getter_AddRefs(markerFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = markerFile->Append(NS_LITERAL_STRING(IDB_DELETION_MARKER_FILE_PREFIX) +
filename);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
markerFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
// Delete the database and directroy since they should be deleted in
// previous operation.
// Note: only update usage to the QuotaManager when mEnforcingQuota == true
rv = RemoveDatabaseFilesAndDirectory(
dbDirectory, filename, mEnforcingQuota ? quotaManager : nullptr,
persistenceType, mGroup, mOrigin, databaseName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
nsCOMPtr<nsIFile> dbFile;
rv = dbDirectory->Clone(getter_AddRefs(dbFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = dbFile->Append(filename + NS_LITERAL_STRING(".sqlite"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mTelemetryId = TelemetryIdForFile(dbFile);
#ifdef DEBUG
nsString databaseFilePath;
rv = dbFile->GetPath(databaseFilePath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(databaseFilePath == mDatabaseFilePath);
#endif
nsCOMPtr<nsIFile> fmDirectory;
rv = dbDirectory->Clone(getter_AddRefs(fmDirectory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
const NS_ConvertASCIItoUTF16 filesSuffix(kFileManagerDirectoryNameSuffix);
rv = fmDirectory->Append(filename + filesSuffix);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageConnection> connection;
rv = CreateStorageConnection(dbFile, fmDirectory, databaseName,
persistenceType, mGroup, mOrigin, mTelemetryId,
getter_AddRefs(connection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
AutoSetProgressHandler asph;
rv = asph.Register(connection, this);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = LoadDatabaseInformation(connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(mMetadata->mNextObjectStoreId > mMetadata->mObjectStores.Count());
MOZ_ASSERT(mMetadata->mNextIndexId > 0);
// See if we need to do a versionchange transaction
// Optional version semantics.
if (!mRequestedVersion) {
// If the requested version was not specified and the database was created,
// treat it as if version 1 were requested.
if (mMetadata->mCommonMetadata.version() == 0) {
mRequestedVersion = 1;
} else {
// Otherwise, treat it as if the current version were requested.
mRequestedVersion = mMetadata->mCommonMetadata.version();
}
}
if (NS_WARN_IF(mMetadata->mCommonMetadata.version() > mRequestedVersion)) {
return NS_ERROR_DOM_INDEXEDDB_VERSION_ERR;
}
IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
MOZ_ASSERT(mgr);
RefPtr<FileManager> fileManager =
mgr->GetFileManager(persistenceType, mOrigin, databaseName);
if (!fileManager) {
fileManager = new FileManager(persistenceType, mGroup, mOrigin,
databaseName, mEnforcingQuota);
rv = fileManager->Init(fmDirectory, connection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mgr->AddFileManager(fileManager);
}
mFileManager = fileManager.forget();
// Must close connection before dispatching otherwise we might race with the
// connection thread which needs to open the same database.
asph.Unregister();
MOZ_ALWAYS_SUCCEEDS(connection->Close());
// Must set mState before dispatching otherwise we will race with the owning
// thread.
mState = (mMetadata->mCommonMetadata.version() == mRequestedVersion)
? State::SendingResults
: State::BeginVersionChange;
rv = mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult OpenDatabaseOp::LoadDatabaseInformation(
mozIStorageConnection* aConnection) {
AssertIsOnIOThread();
MOZ_ASSERT(aConnection);
MOZ_ASSERT(mMetadata);
// Load version information.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("SELECT name, origin, version "
"FROM database"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!hasResult)) {
return NS_ERROR_FILE_CORRUPTED;
}
nsString databaseName;
rv = stmt->GetString(0, databaseName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(mCommonParams.metadata().name() != databaseName)) {
return NS_ERROR_FILE_CORRUPTED;
}
nsCString origin;
rv = stmt->GetUTF8String(1, origin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// We can't just compare these strings directly. See bug 1339081 comment 69.
if (NS_WARN_IF(!QuotaManager::AreOriginsEqualOnDisk(mOrigin, origin))) {
return NS_ERROR_FILE_CORRUPTED;
}
int64_t version;
rv = stmt->GetInt64(2, &version);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mMetadata->mCommonMetadata.version() = uint64_t(version);
ObjectStoreTable& objectStores = mMetadata->mObjectStores;
// Load object store names and ids.
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING("SELECT id, auto_increment, name, key_path "
"FROM object_store"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
Maybe<nsTHashtable<nsUint64HashKey>> usedIds;
Maybe<nsTHashtable<nsStringHashKey>> usedNames;
int64_t lastObjectStoreId = 0;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
int64_t objectStoreId;
rv = stmt->GetInt64(0, &objectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!usedIds) {
usedIds.emplace();
}
if (NS_WARN_IF(objectStoreId <= 0) ||
NS_WARN_IF(usedIds.ref().Contains(objectStoreId))) {
return NS_ERROR_FILE_CORRUPTED;
}
if (NS_WARN_IF(!usedIds.ref().PutEntry(objectStoreId, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsString name;
rv = stmt->GetString(2, name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!usedNames) {
usedNames.emplace();
}
if (NS_WARN_IF(usedNames.ref().Contains(name))) {
return NS_ERROR_FILE_CORRUPTED;
}
if (NS_WARN_IF(!usedNames.ref().PutEntry(name, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
RefPtr<FullObjectStoreMetadata> metadata = new FullObjectStoreMetadata();
metadata->mCommonMetadata.id() = objectStoreId;
metadata->mCommonMetadata.name() = name;
int32_t columnType;
rv = stmt->GetTypeOfIndex(3, &columnType);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (columnType == mozIStorageStatement::VALUE_TYPE_NULL) {
metadata->mCommonMetadata.keyPath() = KeyPath(0);
} else {
MOZ_ASSERT(columnType == mozIStorageStatement::VALUE_TYPE_TEXT);
nsString keyPathSerialization;
rv = stmt->GetString(3, keyPathSerialization);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
metadata->mCommonMetadata.keyPath() =
KeyPath::DeserializeFromString(keyPathSerialization);
if (NS_WARN_IF(!metadata->mCommonMetadata.keyPath().IsValid())) {
return NS_ERROR_FILE_CORRUPTED;
}
}
int64_t nextAutoIncrementId;
rv = stmt->GetInt64(1, &nextAutoIncrementId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
metadata->mCommonMetadata.autoIncrement() = !!nextAutoIncrementId;
metadata->mNextAutoIncrementId = nextAutoIncrementId;
metadata->mCommittedAutoIncrementId = nextAutoIncrementId;
if (NS_WARN_IF(!objectStores.Put(objectStoreId, metadata, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
lastObjectStoreId = std::max(lastObjectStoreId, objectStoreId);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
usedIds.reset();
usedNames.reset();
// Load index information
rv = aConnection->CreateStatement(
NS_LITERAL_CSTRING(
"SELECT "
"id, object_store_id, name, key_path, unique_index, multientry, "
"locale, is_auto_locale "
"FROM object_store_index"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t lastIndexId = 0;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
int64_t objectStoreId;
rv = stmt->GetInt64(1, &objectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
RefPtr<FullObjectStoreMetadata> objectStoreMetadata;
if (NS_WARN_IF(!objectStores.Get(objectStoreId,
getter_AddRefs(objectStoreMetadata)))) {
return NS_ERROR_FILE_CORRUPTED;
}
MOZ_ASSERT(objectStoreMetadata->mCommonMetadata.id() == objectStoreId);
int64_t indexId;
rv = stmt->GetInt64(0, &indexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!usedIds) {
usedIds.emplace();
}
if (NS_WARN_IF(indexId <= 0) ||
NS_WARN_IF(usedIds.ref().Contains(indexId))) {
return NS_ERROR_FILE_CORRUPTED;
}
if (NS_WARN_IF(!usedIds.ref().PutEntry(indexId, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsString name;
rv = stmt->GetString(2, name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoString hashName;
hashName.AppendInt(indexId);
hashName.Append(':');
hashName.Append(name);
if (!usedNames) {
usedNames.emplace();
}
if (NS_WARN_IF(usedNames.ref().Contains(hashName))) {
return NS_ERROR_FILE_CORRUPTED;
}
if (NS_WARN_IF(!usedNames.ref().PutEntry(hashName, fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
RefPtr<FullIndexMetadata> indexMetadata = new FullIndexMetadata();
indexMetadata->mCommonMetadata.id() = indexId;
indexMetadata->mCommonMetadata.name() = name;
#ifdef DEBUG
{
int32_t columnType;
rv = stmt->GetTypeOfIndex(3, &columnType);
MOZ_ASSERT(NS_SUCCEEDED(rv));
MOZ_ASSERT(columnType != mozIStorageStatement::VALUE_TYPE_NULL);
}
#endif
nsString keyPathSerialization;
rv = stmt->GetString(3, keyPathSerialization);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
indexMetadata->mCommonMetadata.keyPath() =
KeyPath::DeserializeFromString(keyPathSerialization);
if (NS_WARN_IF(!indexMetadata->mCommonMetadata.keyPath().IsValid())) {
return NS_ERROR_FILE_CORRUPTED;
}
int32_t scratch;
rv = stmt->GetInt32(4, &scratch);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
indexMetadata->mCommonMetadata.unique() = !!scratch;
rv = stmt->GetInt32(5, &scratch);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
indexMetadata->mCommonMetadata.multiEntry() = !!scratch;
const bool localeAware = !stmt->IsNull(6);
if (localeAware) {
rv = stmt->GetUTF8String(6, indexMetadata->mCommonMetadata.locale());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->GetInt32(7, &scratch);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
indexMetadata->mCommonMetadata.autoLocale() = !!scratch;
// Update locale-aware indexes if necessary
const nsCString& indexedLocale = indexMetadata->mCommonMetadata.locale();
const bool& isAutoLocale = indexMetadata->mCommonMetadata.autoLocale();
nsCString systemLocale = IndexedDatabaseManager::GetLocale();
if (!systemLocale.IsEmpty() && isAutoLocale &&
!indexedLocale.EqualsASCII(systemLocale.get())) {
rv = UpdateLocaleAwareIndex(aConnection, indexMetadata->mCommonMetadata,
systemLocale);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
if (NS_WARN_IF(!objectStoreMetadata->mIndexes.Put(indexId, indexMetadata,
fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
lastIndexId = std::max(lastIndexId, indexId);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(lastObjectStoreId == INT64_MAX) ||
NS_WARN_IF(lastIndexId == INT64_MAX)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mMetadata->mNextObjectStoreId = lastObjectStoreId + 1;
mMetadata->mNextIndexId = lastIndexId + 1;
return NS_OK;
}
/* static */
nsresult OpenDatabaseOp::UpdateLocaleAwareIndex(
mozIStorageConnection* aConnection, const IndexMetadata& aIndexMetadata,
const nsCString& aLocale) {
nsresult rv;
nsCString indexTable;
if (aIndexMetadata.unique()) {
indexTable.AssignLiteral("unique_index_data");
} else {
indexTable.AssignLiteral("index_data");
}
nsCString readQuery =
NS_LITERAL_CSTRING("SELECT value, object_data_key FROM ") + indexTable +
NS_LITERAL_CSTRING(" WHERE index_id = :index_id");
nsCOMPtr<mozIStorageStatement> readStmt;
rv = aConnection->CreateStatement(readQuery, getter_AddRefs(readStmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = readStmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
aIndexMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<mozIStorageStatement> writeStmt;
bool needCreateWriteQuery = true;
bool hasResult;
while (NS_SUCCEEDED((rv = readStmt->ExecuteStep(&hasResult))) && hasResult) {
if (needCreateWriteQuery) {
needCreateWriteQuery = false;
nsCString writeQuery = NS_LITERAL_CSTRING("UPDATE ") + indexTable +
NS_LITERAL_CSTRING(
"SET value_locale = :value_locale "
"WHERE index_id = :index_id AND "
"value = :value AND "
"object_data_key = :object_data_key");
rv = aConnection->CreateStatement(writeQuery, getter_AddRefs(writeStmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
mozStorageStatementScoper scoper(writeStmt);
rv = writeStmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
aIndexMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
Key oldKey, newSortKey, objectKey;
rv = oldKey.SetFromStatement(readStmt, 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = oldKey.BindToStatement(writeStmt, NS_LITERAL_CSTRING("value"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = oldKey.ToLocaleBasedKey(newSortKey, aLocale);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = newSortKey.BindToStatement(writeStmt,
NS_LITERAL_CSTRING("value_locale"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = objectKey.SetFromStatement(readStmt, 1);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = objectKey.BindToStatement(writeStmt,
NS_LITERAL_CSTRING("object_data_key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = writeStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
nsCString metaQuery = NS_LITERAL_CSTRING(
"UPDATE object_store_index SET "
"locale = :locale WHERE id = :id");
nsCOMPtr<mozIStorageStatement> metaStmt;
rv = aConnection->CreateStatement(metaQuery, getter_AddRefs(metaStmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsString locale;
CopyASCIItoUTF16(aLocale, locale);
rv = metaStmt->BindStringByName(NS_LITERAL_CSTRING("locale"), locale);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = metaStmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), aIndexMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = metaStmt->Execute();
return rv;
}
nsresult OpenDatabaseOp::BeginVersionChange() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::BeginVersionChange);
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
MOZ_ASSERT(mMetadata->mCommonMetadata.version() <= mRequestedVersion);
MOZ_ASSERT(!mDatabase);
MOZ_ASSERT(!mVersionChangeTransaction);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsActorDestroyed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
EnsureDatabaseActor();
if (mDatabase->IsInvalidated()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
MOZ_ASSERT(!mDatabase->IsClosed());
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(gLiveDatabaseHashtable->Get(mDatabaseId, &info));
MOZ_ASSERT(info->mLiveDatabases.Contains(mDatabase));
MOZ_ASSERT(!info->mWaitingFactoryOp);
MOZ_ASSERT(info->mMetadata == mMetadata);
RefPtr<VersionChangeTransaction> transaction =
new VersionChangeTransaction(this);
if (NS_WARN_IF(!transaction->CopyDatabaseMetadata())) {
return NS_ERROR_OUT_OF_MEMORY;
}
MOZ_ASSERT(info->mMetadata != mMetadata);
mMetadata = info->mMetadata;
NullableVersion newVersion = mRequestedVersion;
nsresult rv = SendVersionChangeMessages(
info, mDatabase, mMetadata->mCommonMetadata.version(), newVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mVersionChangeTransaction.swap(transaction);
if (mMaybeBlockedDatabases.IsEmpty()) {
// We don't need to wait on any databases, just jump to the transaction
// pool.
WaitForTransactions();
return NS_OK;
}
info->mWaitingFactoryOp = this;
mState = State::WaitingForOtherDatabasesToClose;
return NS_OK;
}
void OpenDatabaseOp::NoteDatabaseClosed(Database* aDatabase) {
AssertIsOnOwningThread();
MOZ_ASSERT(aDatabase);
MOZ_ASSERT(mState == State::WaitingForOtherDatabasesToClose ||
mState == State::WaitingForTransactionsToComplete ||
mState == State::DatabaseWorkVersionChange);
if (mState != State::WaitingForOtherDatabasesToClose) {
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
MOZ_ASSERT(
mRequestedVersion > aDatabase->Metadata()->mCommonMetadata.version(),
"Must only be closing databases for a previous version!");
return;
}
MOZ_ASSERT(!mMaybeBlockedDatabases.IsEmpty());
bool actorDestroyed = IsActorDestroyed() || mDatabase->IsActorDestroyed();
nsresult rv;
if (actorDestroyed) {
IDB_REPORT_INTERNAL_ERR();
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
} else {
rv = NS_OK;
}
// We are being called with an assumption that mWaitingFactoryOp holds
// a strong reference to us.
RefPtr<OpenDatabaseOp> kungFuDeathGrip;
if (mMaybeBlockedDatabases.RemoveElement(aDatabase) &&
mMaybeBlockedDatabases.IsEmpty()) {
if (actorDestroyed) {
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(gLiveDatabaseHashtable->Get(mDatabaseId, &info));
MOZ_ASSERT(info->mWaitingFactoryOp == this);
kungFuDeathGrip =
static_cast<OpenDatabaseOp*>(info->mWaitingFactoryOp.get());
info->mWaitingFactoryOp = nullptr;
} else {
WaitForTransactions();
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
// A strong reference is held in kungFuDeathGrip, so it's safe to call Run()
// directly.
mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(Run());
}
}
void OpenDatabaseOp::SendBlockedNotification() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::WaitingForOtherDatabasesToClose);
if (!IsActorDestroyed()) {
Unused << SendBlocked(mMetadata->mCommonMetadata.version());
}
}
nsresult OpenDatabaseOp::DispatchToWorkThread() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::WaitingForTransactionsToComplete);
MOZ_ASSERT(mVersionChangeTransaction);
MOZ_ASSERT(mVersionChangeTransaction->GetMode() ==
IDBTransaction::VERSION_CHANGE);
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsActorDestroyed() || mDatabase->IsInvalidated()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mState = State::DatabaseWorkVersionChange;
// Intentionally empty.
nsTArray<nsString> objectStoreNames;
const int64_t loggingSerialNumber =
mVersionChangeTransaction->LoggingSerialNumber();
const nsID& backgroundChildLoggingId =
mVersionChangeTransaction->GetLoggingInfo()->Id();
if (NS_WARN_IF(!mDatabase->RegisterTransaction(mVersionChangeTransaction))) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (!gConnectionPool) {
gConnectionPool = new ConnectionPool();
}
RefPtr<VersionChangeOp> versionChangeOp = new VersionChangeOp(this);
uint64_t transactionId = versionChangeOp->StartOnConnectionPool(
backgroundChildLoggingId, mVersionChangeTransaction->DatabaseId(),
loggingSerialNumber, objectStoreNames,
/* aIsWriteTransaction */ true);
mVersionChangeOp = versionChangeOp;
mVersionChangeTransaction->NoteActiveRequest();
mVersionChangeTransaction->SetActive(transactionId);
return NS_OK;
}
nsresult OpenDatabaseOp::SendUpgradeNeeded() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DatabaseWorkVersionChange);
MOZ_ASSERT(mVersionChangeTransaction);
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
MOZ_ASSERT_IF(!IsActorDestroyed(), mDatabase);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsActorDestroyed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
RefPtr<VersionChangeTransaction> transaction;
mVersionChangeTransaction.swap(transaction);
nsresult rv = EnsureDatabaseActorIsAlive();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Transfer ownership to IPDL.
transaction->SetActorAlive();
if (!mDatabase->SendPBackgroundIDBVersionChangeTransactionConstructor(
transaction, mMetadata->mCommonMetadata.version(), mRequestedVersion,
mMetadata->mNextObjectStoreId, mMetadata->mNextIndexId)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
void OpenDatabaseOp::SendResults() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::SendingResults);
MOZ_ASSERT_IF(NS_SUCCEEDED(mResultCode), mMaybeBlockedDatabases.IsEmpty());
MOZ_ASSERT_IF(NS_SUCCEEDED(mResultCode), !mVersionChangeTransaction);
mMaybeBlockedDatabases.Clear();
DatabaseActorInfo* info;
if (gLiveDatabaseHashtable &&
gLiveDatabaseHashtable->Get(mDatabaseId, &info) &&
info->mWaitingFactoryOp) {
MOZ_ASSERT(info->mWaitingFactoryOp == this);
// SendResults() should only be called by Run() and Run() should only be
// called if there's a strong reference to the object that can't be cleared
// here, so it's safe to clear mWaitingFactoryOp without adding additional
// strong reference.
info->mWaitingFactoryOp = nullptr;
}
if (mVersionChangeTransaction) {
MOZ_ASSERT(NS_FAILED(mResultCode));
mVersionChangeTransaction->Abort(mResultCode, /* aForce */ true);
mVersionChangeTransaction = nullptr;
}
if (IsActorDestroyed()) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
} else {
FactoryRequestResponse response;
if (NS_SUCCEEDED(mResultCode)) {
// If we just successfully completed a versionchange operation then we
// need to update the version in our metadata.
mMetadata->mCommonMetadata.version() = mRequestedVersion;
nsresult rv = EnsureDatabaseActorIsAlive();
if (NS_SUCCEEDED(rv)) {
// We successfully opened a database so use its actor as the success
// result for this request.
OpenDatabaseRequestResponse openResponse;
openResponse.databaseParent() = mDatabase;
response = openResponse;
} else {
response = ClampResultCode(rv);
#ifdef DEBUG
mResultCode = response.get_nsresult();
#endif
}
} else {
#ifdef DEBUG
// If something failed then our metadata pointer is now bad. No one should
// ever touch it again though so just null it out in DEBUG builds to make
// sure we find such cases.
mMetadata = nullptr;
#endif
response = ClampResultCode(mResultCode);
}
Unused << PBackgroundIDBFactoryRequestParent::Send__delete__(this,
response);
}
if (mDatabase) {
MOZ_ASSERT(!mDirectoryLock);
if (NS_FAILED(mResultCode)) {
mDatabase->Invalidate();
}
// Make sure to release the database on this thread.
mDatabase = nullptr;
CleanupMetadata();
} else if (mDirectoryLock) {
// ConnectionClosedCallback will call CleanupMetadata().
nsCOMPtr<nsIRunnable> callback = NewRunnableMethod(
"dom::indexedDB::OpenDatabaseOp::ConnectionClosedCallback", this,
&OpenDatabaseOp::ConnectionClosedCallback);
RefPtr<WaitForTransactionsHelper> helper =
new WaitForTransactionsHelper(mDatabaseId, callback);
helper->WaitForTransactions();
} else {
CleanupMetadata();
}
FinishSendResults();
}
void OpenDatabaseOp::ConnectionClosedCallback() {
AssertIsOnOwningThread();
MOZ_ASSERT(NS_FAILED(mResultCode));
MOZ_ASSERT(mDirectoryLock);
mDirectoryLock = nullptr;
CleanupMetadata();
}
void OpenDatabaseOp::EnsureDatabaseActor() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::BeginVersionChange ||
mState == State::DatabaseWorkVersionChange ||
mState == State::SendingResults);
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
MOZ_ASSERT(!mDatabaseFilePath.IsEmpty());
MOZ_ASSERT(!IsActorDestroyed());
if (mDatabase) {
return;
}
MOZ_ASSERT(mMetadata->mDatabaseId.IsEmpty());
mMetadata->mDatabaseId = mDatabaseId;
MOZ_ASSERT(mMetadata->mFilePath.IsEmpty());
mMetadata->mFilePath = mDatabaseFilePath;
DatabaseActorInfo* info;
if (gLiveDatabaseHashtable->Get(mDatabaseId, &info)) {
AssertMetadataConsistency(info->mMetadata);
mMetadata = info->mMetadata;
}
auto factory = static_cast<Factory*>(Manager());
mDatabase = new Database(
factory, mCommonParams.principalInfo(), mOptionalContentParentId, mGroup,
mOrigin, mTelemetryId, mMetadata, mFileManager, mDirectoryLock.forget(),
mFileHandleDisabled, mChromeWriteAccessAllowed);
if (info) {
info->mLiveDatabases.AppendElement(mDatabase);
} else {
info = new DatabaseActorInfo(mMetadata, mDatabase);
gLiveDatabaseHashtable->Put(mDatabaseId, info);
}
// Balanced in Database::CleanupMetadata().
IncreaseBusyCount();
}
nsresult OpenDatabaseOp::EnsureDatabaseActorIsAlive() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DatabaseWorkVersionChange ||
mState == State::SendingResults);
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
MOZ_ASSERT(!IsActorDestroyed());
EnsureDatabaseActor();
if (mDatabase->IsActorAlive()) {
return NS_OK;
}
auto factory = static_cast<Factory*>(Manager());
DatabaseSpec spec;
MetadataToSpec(spec);
// Transfer ownership to IPDL.
mDatabase->SetActorAlive();
if (!factory->SendPBackgroundIDBDatabaseConstructor(mDatabase, spec, this)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
void OpenDatabaseOp::MetadataToSpec(DatabaseSpec& aSpec) {
AssertIsOnOwningThread();
MOZ_ASSERT(mMetadata);
aSpec.metadata() = mMetadata->mCommonMetadata;
for (auto objectStoreIter = mMetadata->mObjectStores.ConstIter();
!objectStoreIter.Done(); objectStoreIter.Next()) {
FullObjectStoreMetadata* metadata = objectStoreIter.UserData();
MOZ_ASSERT(objectStoreIter.Key());
MOZ_ASSERT(metadata);
// XXX This should really be fallible...
ObjectStoreSpec* objectStoreSpec = aSpec.objectStores().AppendElement();
objectStoreSpec->metadata() = metadata->mCommonMetadata;
for (auto indexIter = metadata->mIndexes.Iter(); !indexIter.Done();
indexIter.Next()) {
FullIndexMetadata* indexMetadata = indexIter.UserData();
MOZ_ASSERT(indexIter.Key());
MOZ_ASSERT(indexMetadata);
// XXX This should really be fallible...
IndexMetadata* metadata = objectStoreSpec->indexes().AppendElement();
*metadata = indexMetadata->mCommonMetadata;
}
}
}
#ifdef DEBUG
void OpenDatabaseOp::AssertMetadataConsistency(
const FullDatabaseMetadata* aMetadata) {
AssertIsOnBackgroundThread();
const FullDatabaseMetadata* thisDB = mMetadata;
const FullDatabaseMetadata* otherDB = aMetadata;
MOZ_ASSERT(thisDB);
MOZ_ASSERT(otherDB);
MOZ_ASSERT(thisDB != otherDB);
MOZ_ASSERT(thisDB->mCommonMetadata.name() == otherDB->mCommonMetadata.name());
MOZ_ASSERT(thisDB->mCommonMetadata.version() ==
otherDB->mCommonMetadata.version());
MOZ_ASSERT(thisDB->mCommonMetadata.persistenceType() ==
otherDB->mCommonMetadata.persistenceType());
MOZ_ASSERT(thisDB->mDatabaseId == otherDB->mDatabaseId);
MOZ_ASSERT(thisDB->mFilePath == otherDB->mFilePath);
// |thisDB| reflects the latest objectStore and index ids that have committed
// to disk. The in-memory metadata |otherDB| keeps track of objectStores and
// indexes that were created and then removed as well, so the next ids for
// |otherDB| may be higher than for |thisDB|.
MOZ_ASSERT(thisDB->mNextObjectStoreId <= otherDB->mNextObjectStoreId);
MOZ_ASSERT(thisDB->mNextIndexId <= otherDB->mNextIndexId);
MOZ_ASSERT(thisDB->mObjectStores.Count() == otherDB->mObjectStores.Count());
for (auto objectStoreIter = thisDB->mObjectStores.ConstIter();
!objectStoreIter.Done(); objectStoreIter.Next()) {
FullObjectStoreMetadata* thisObjectStore = objectStoreIter.UserData();
MOZ_ASSERT(thisObjectStore);
MOZ_ASSERT(!thisObjectStore->mDeleted);
auto* otherObjectStore =
MetadataNameOrIdMatcher<FullObjectStoreMetadata>::Match(
otherDB->mObjectStores, thisObjectStore->mCommonMetadata.id());
MOZ_ASSERT(otherObjectStore);
MOZ_ASSERT(thisObjectStore != otherObjectStore);
MOZ_ASSERT(thisObjectStore->mCommonMetadata.id() ==
otherObjectStore->mCommonMetadata.id());
MOZ_ASSERT(thisObjectStore->mCommonMetadata.name() ==
otherObjectStore->mCommonMetadata.name());
MOZ_ASSERT(thisObjectStore->mCommonMetadata.autoIncrement() ==
otherObjectStore->mCommonMetadata.autoIncrement());
MOZ_ASSERT(thisObjectStore->mCommonMetadata.keyPath() ==
otherObjectStore->mCommonMetadata.keyPath());
// mNextAutoIncrementId and mCommittedAutoIncrementId may be modified
// concurrently with this OpenOp, so it is not possible to assert equality
// here. It's also possible that we've written the new ids to disk but not
// yet updated the in-memory count.
MOZ_ASSERT(thisObjectStore->mNextAutoIncrementId <=
otherObjectStore->mNextAutoIncrementId);
MOZ_ASSERT(thisObjectStore->mCommittedAutoIncrementId <=
otherObjectStore->mCommittedAutoIncrementId ||
thisObjectStore->mCommittedAutoIncrementId ==
otherObjectStore->mNextAutoIncrementId);
MOZ_ASSERT(!otherObjectStore->mDeleted);
MOZ_ASSERT(thisObjectStore->mIndexes.Count() ==
otherObjectStore->mIndexes.Count());
for (auto indexIter = thisObjectStore->mIndexes.Iter(); !indexIter.Done();
indexIter.Next()) {
FullIndexMetadata* thisIndex = indexIter.UserData();
MOZ_ASSERT(thisIndex);
MOZ_ASSERT(!thisIndex->mDeleted);
auto* otherIndex = MetadataNameOrIdMatcher<FullIndexMetadata>::Match(
otherObjectStore->mIndexes, thisIndex->mCommonMetadata.id());
MOZ_ASSERT(otherIndex);
MOZ_ASSERT(thisIndex != otherIndex);
MOZ_ASSERT(thisIndex->mCommonMetadata.id() ==
otherIndex->mCommonMetadata.id());
MOZ_ASSERT(thisIndex->mCommonMetadata.name() ==
otherIndex->mCommonMetadata.name());
MOZ_ASSERT(thisIndex->mCommonMetadata.keyPath() ==
otherIndex->mCommonMetadata.keyPath());
MOZ_ASSERT(thisIndex->mCommonMetadata.unique() ==
otherIndex->mCommonMetadata.unique());
MOZ_ASSERT(thisIndex->mCommonMetadata.multiEntry() ==
otherIndex->mCommonMetadata.multiEntry());
MOZ_ASSERT(!otherIndex->mDeleted);
}
}
}
#endif // DEBUG
nsresult OpenDatabaseOp::VersionChangeOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mOpenDatabaseOp);
MOZ_ASSERT(mOpenDatabaseOp->mState == State::DatabaseWorkVersionChange);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
AUTO_PROFILER_LABEL("OpenDatabaseOp::VersionChangeOp::DoDatabaseWork", DOM);
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld]: "
"Beginning database work",
"IndexedDB %s: P T[%lld]: DB Start",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId), mLoggingSerialNumber);
Transaction()->SetActiveOnConnectionThread();
nsresult rv = aConnection->BeginWriteTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement updateStmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE database "
"SET version = :version;"),
&updateStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = updateStmt->BindInt64ByName(NS_LITERAL_CSTRING("version"),
int64_t(mRequestedVersion));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = updateStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult OpenDatabaseOp::VersionChangeOp::SendSuccessResult() {
AssertIsOnOwningThread();
MOZ_ASSERT(mOpenDatabaseOp);
MOZ_ASSERT(mOpenDatabaseOp->mState == State::DatabaseWorkVersionChange);
MOZ_ASSERT(mOpenDatabaseOp->mVersionChangeOp == this);
nsresult rv = mOpenDatabaseOp->SendUpgradeNeeded();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
bool OpenDatabaseOp::VersionChangeOp::SendFailureResult(nsresult aResultCode) {
AssertIsOnOwningThread();
MOZ_ASSERT(mOpenDatabaseOp);
MOZ_ASSERT(mOpenDatabaseOp->mState == State::DatabaseWorkVersionChange);
MOZ_ASSERT(mOpenDatabaseOp->mVersionChangeOp == this);
mOpenDatabaseOp->SetFailureCode(aResultCode);
mOpenDatabaseOp->mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(mOpenDatabaseOp->Run());
return false;
}
void OpenDatabaseOp::VersionChangeOp::Cleanup() {
AssertIsOnOwningThread();
MOZ_ASSERT(mOpenDatabaseOp);
MOZ_ASSERT(mOpenDatabaseOp->mVersionChangeOp == this);
mOpenDatabaseOp->mVersionChangeOp = nullptr;
mOpenDatabaseOp = nullptr;
#ifdef DEBUG
// A bit hacky but the VersionChangeOp is not generated in response to a
// child request like most other database operations. Do this to make our
// assertions happy.
NoteActorDestroyed();
#endif
TransactionDatabaseOperationBase::Cleanup();
}
void DeleteDatabaseOp::LoadPreviousVersion(nsIFile* aDatabaseFile) {
AssertIsOnIOThread();
MOZ_ASSERT(aDatabaseFile);
MOZ_ASSERT(mState == State::DatabaseWorkOpen);
MOZ_ASSERT(!mPreviousVersion);
AUTO_PROFILER_LABEL("DeleteDatabaseOp::LoadPreviousVersion", DOM);
nsresult rv;
nsCOMPtr<mozIStorageService> ss =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsCOMPtr<mozIStorageConnection> connection;
rv = OpenDatabaseAndHandleBusy(ss, aDatabaseFile, getter_AddRefs(connection));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
#ifdef DEBUG
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = connection->CreateStatement(NS_LITERAL_CSTRING("SELECT name "
"FROM database"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsString databaseName;
rv = stmt->GetString(0, databaseName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
MOZ_ASSERT(mCommonParams.metadata().name() == databaseName);
}
#endif
nsCOMPtr<mozIStorageStatement> stmt;
rv = connection->CreateStatement(NS_LITERAL_CSTRING("SELECT version "
"FROM database"),
getter_AddRefs(stmt));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
if (NS_WARN_IF(!hasResult)) {
return;
}
int64_t version;
rv = stmt->GetInt64(0, &version);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
mPreviousVersion = uint64_t(version);
}
nsresult DeleteDatabaseOp::DatabaseOpen() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::DatabaseOpenPending);
// Swap this to the stack now to ensure that we release it on this thread.
RefPtr<ContentParent> contentParent;
mContentParent.swap(contentParent);
nsresult rv = SendToIOThread();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult DeleteDatabaseOp::DoDatabaseWork() {
AssertIsOnIOThread();
MOZ_ASSERT(mState == State::DatabaseWorkOpen);
AUTO_PROFILER_LABEL("DeleteDatabaseOp::DoDatabaseWork", DOM);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
const nsString& databaseName = mCommonParams.metadata().name();
PersistenceType persistenceType = mCommonParams.metadata().persistenceType();
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsCOMPtr<nsIFile> directory;
nsresult rv = quotaManager->GetDirectoryForOrigin(persistenceType, mOrigin,
getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = directory->Append(NS_LITERAL_STRING(IDB_DIRECTORY_NAME));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = directory->GetPath(mDatabaseDirectoryPath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoString filename;
GetDatabaseFilename(databaseName, filename);
mDatabaseFilenameBase = filename;
nsCOMPtr<nsIFile> dbFile;
rv = directory->Clone(getter_AddRefs(dbFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = dbFile->Append(filename + NS_LITERAL_STRING(".sqlite"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
nsString databaseFilePath;
rv = dbFile->GetPath(databaseFilePath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(databaseFilePath == mDatabaseFilePath);
#endif
bool exists;
rv = dbFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
// Parts of this function may fail but that shouldn't prevent us from
// deleting the file eventually.
LoadPreviousVersion(dbFile);
mState = State::BeginVersionChange;
} else {
mState = State::SendingResults;
}
rv = mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult DeleteDatabaseOp::BeginVersionChange() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::BeginVersionChange);
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsActorDestroyed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
DatabaseActorInfo* info;
if (gLiveDatabaseHashtable->Get(mDatabaseId, &info)) {
MOZ_ASSERT(!info->mWaitingFactoryOp);
NullableVersion newVersion = null_t();
nsresult rv =
SendVersionChangeMessages(info, nullptr, mPreviousVersion, newVersion);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!mMaybeBlockedDatabases.IsEmpty()) {
info->mWaitingFactoryOp = this;
mState = State::WaitingForOtherDatabasesToClose;
return NS_OK;
}
}
// No other databases need to be notified, just make sure that all
// transactions are complete.
WaitForTransactions();
return NS_OK;
}
nsresult DeleteDatabaseOp::DispatchToWorkThread() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::WaitingForTransactionsToComplete);
MOZ_ASSERT(mMaybeBlockedDatabases.IsEmpty());
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnBackgroundThread()) ||
IsActorDestroyed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mState = State::DatabaseWorkVersionChange;
RefPtr<VersionChangeOp> versionChangeOp = new VersionChangeOp(this);
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsresult rv = quotaManager->IOThread()->Dispatch(versionChangeOp.forget(),
NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
void DeleteDatabaseOp::NoteDatabaseClosed(Database* aDatabase) {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::WaitingForOtherDatabasesToClose);
MOZ_ASSERT(!mMaybeBlockedDatabases.IsEmpty());
bool actorDestroyed = IsActorDestroyed();
nsresult rv;
if (actorDestroyed) {
IDB_REPORT_INTERNAL_ERR();
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
} else {
rv = NS_OK;
}
// We are being called with an assumption that mWaitingFactoryOp holds
// a strong reference to us.
RefPtr<OpenDatabaseOp> kungFuDeathGrip;
if (mMaybeBlockedDatabases.RemoveElement(aDatabase) &&
mMaybeBlockedDatabases.IsEmpty()) {
if (actorDestroyed) {
DatabaseActorInfo* info;
MOZ_ALWAYS_TRUE(gLiveDatabaseHashtable->Get(mDatabaseId, &info));
MOZ_ASSERT(info->mWaitingFactoryOp == this);
kungFuDeathGrip =
static_cast<OpenDatabaseOp*>(info->mWaitingFactoryOp.get());
info->mWaitingFactoryOp = nullptr;
} else {
WaitForTransactions();
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
// A strong reference is held in kungFuDeathGrip, so it's safe to call Run()
// directly.
mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(Run());
}
}
void DeleteDatabaseOp::SendBlockedNotification() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::WaitingForOtherDatabasesToClose);
if (!IsActorDestroyed()) {
Unused << SendBlocked(mPreviousVersion);
}
}
void DeleteDatabaseOp::SendResults() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::SendingResults);
if (!IsActorDestroyed()) {
FactoryRequestResponse response;
if (NS_SUCCEEDED(mResultCode)) {
response = DeleteDatabaseRequestResponse(mPreviousVersion);
} else {
response = ClampResultCode(mResultCode);
}
Unused << PBackgroundIDBFactoryRequestParent::Send__delete__(this,
response);
}
mDirectoryLock = nullptr;
CleanupMetadata();
FinishSendResults();
}
nsresult DeleteDatabaseOp::VersionChangeOp::RunOnIOThread() {
AssertIsOnIOThread();
MOZ_ASSERT(mDeleteDatabaseOp->mState == State::DatabaseWorkVersionChange);
AUTO_PROFILER_LABEL("DeleteDatabaseOp::VersionChangeOp::RunOnIOThread", DOM);
if (NS_WARN_IF(QuotaClient::IsShuttingDownOnNonBackgroundThread()) ||
!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
const PersistenceType& persistenceType =
mDeleteDatabaseOp->mCommonParams.metadata().persistenceType();
QuotaManager* quotaManager =
mDeleteDatabaseOp->mEnforcingQuota ? QuotaManager::Get() : nullptr;
MOZ_ASSERT_IF(mDeleteDatabaseOp->mEnforcingQuota, quotaManager);
nsCOMPtr<nsIFile> directory =
GetFileForPath(mDeleteDatabaseOp->mDatabaseDirectoryPath);
if (NS_WARN_IF(!directory)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsresult rv = RemoveDatabaseFilesAndDirectory(
directory, mDeleteDatabaseOp->mDatabaseFilenameBase, quotaManager,
persistenceType, mDeleteDatabaseOp->mGroup, mDeleteDatabaseOp->mOrigin,
mDeleteDatabaseOp->mCommonParams.metadata().name());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void DeleteDatabaseOp::VersionChangeOp::RunOnOwningThread() {
AssertIsOnOwningThread();
MOZ_ASSERT(mDeleteDatabaseOp->mState == State::DatabaseWorkVersionChange);
RefPtr<DeleteDatabaseOp> deleteOp;
mDeleteDatabaseOp.swap(deleteOp);
if (deleteOp->IsActorDestroyed()) {
IDB_REPORT_INTERNAL_ERR();
deleteOp->SetFailureCode(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
} else {
DatabaseActorInfo* info;
if (gLiveDatabaseHashtable->Get(deleteOp->mDatabaseId, &info) &&
info->mWaitingFactoryOp) {
MOZ_ASSERT(info->mWaitingFactoryOp == deleteOp);
info->mWaitingFactoryOp = nullptr;
}
if (NS_FAILED(mResultCode)) {
if (NS_SUCCEEDED(deleteOp->ResultCode())) {
deleteOp->SetFailureCode(mResultCode);
}
} else {
// Inform all the other databases that they are now invalidated. That
// should remove the previous metadata from our table.
if (info) {
MOZ_ASSERT(!info->mLiveDatabases.IsEmpty());
FallibleTArray<Database*> liveDatabases;
if (NS_WARN_IF(!liveDatabases.AppendElements(info->mLiveDatabases,
fallible))) {
deleteOp->SetFailureCode(NS_ERROR_OUT_OF_MEMORY);
} else {
#ifdef DEBUG
// The code below should result in the deletion of |info|. Set to null
// here to make sure we find invalid uses later.
info = nullptr;
#endif
for (uint32_t count = liveDatabases.Length(), index = 0;
index < count; index++) {
RefPtr<Database> database = liveDatabases[index];
database->Invalidate();
}
MOZ_ASSERT(!gLiveDatabaseHashtable->Get(deleteOp->mDatabaseId));
}
}
}
}
// We hold a strong ref to the deleteOp, so it's safe to call Run() directly.
deleteOp->mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(deleteOp->Run());
#ifdef DEBUG
// A bit hacky but the DeleteDatabaseOp::VersionChangeOp is not really a
// normal database operation that is tied to an actor. Do this to make our
// assertions happy.
NoteActorDestroyed();
#endif
}
nsresult DeleteDatabaseOp::VersionChangeOp::Run() {
nsresult rv;
if (IsOnIOThread()) {
rv = RunOnIOThread();
} else {
RunOnOwningThread();
rv = NS_OK;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
}
return NS_OK;
}
TransactionDatabaseOperationBase::TransactionDatabaseOperationBase(
TransactionBase* aTransaction)
: DatabaseOperationBase(aTransaction->GetLoggingInfo()->Id(),
aTransaction->GetLoggingInfo()->NextRequestSN()),
mTransaction(aTransaction),
mTransactionLoggingSerialNumber(aTransaction->LoggingSerialNumber()),
mInternalState(InternalState::Initial),
mTransactionIsAborted(aTransaction->IsAborted()) {
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(LoggingSerialNumber());
}
TransactionDatabaseOperationBase::TransactionDatabaseOperationBase(
TransactionBase* aTransaction, uint64_t aLoggingSerialNumber)
: DatabaseOperationBase(aTransaction->GetLoggingInfo()->Id(),
aLoggingSerialNumber),
mTransaction(aTransaction),
mTransactionLoggingSerialNumber(aTransaction->LoggingSerialNumber()),
mInternalState(InternalState::Initial),
mTransactionIsAborted(aTransaction->IsAborted()) {
MOZ_ASSERT(aTransaction);
}
TransactionDatabaseOperationBase::~TransactionDatabaseOperationBase() {
MOZ_ASSERT(mInternalState == InternalState::Completed);
MOZ_ASSERT(!mTransaction,
"TransactionDatabaseOperationBase::Cleanup() was not called by a "
"subclass!");
}
#ifdef DEBUG
void TransactionDatabaseOperationBase::AssertIsOnConnectionThread() const {
MOZ_ASSERT(mTransaction);
mTransaction->AssertIsOnConnectionThread();
}
#endif // DEBUG
uint64_t TransactionDatabaseOperationBase::StartOnConnectionPool(
const nsID& aBackgroundChildLoggingId, const nsACString& aDatabaseId,
int64_t aLoggingSerialNumber, const nsTArray<nsString>& aObjectStoreNames,
bool aIsWriteTransaction) {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::Initial);
// Must set mInternalState before dispatching otherwise we will race with the
// connection thread.
mInternalState = InternalState::DatabaseWork;
return gConnectionPool->Start(aBackgroundChildLoggingId, aDatabaseId,
aLoggingSerialNumber, aObjectStoreNames,
aIsWriteTransaction, this);
}
void TransactionDatabaseOperationBase::DispatchToConnectionPool() {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::Initial);
Unused << this->Run();
}
void TransactionDatabaseOperationBase::RunOnConnectionThread() {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mInternalState == InternalState::DatabaseWork);
MOZ_ASSERT(mTransaction);
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
AUTO_PROFILER_LABEL("TransactionDatabaseOperationBase::RunOnConnectionThread",
DOM);
// There are several cases where we don't actually have to to any work here.
if (mTransactionIsAborted || mTransaction->IsInvalidatedOnAnyThread()) {
// This transaction is already set to be aborted or invalidated.
mResultCode = NS_ERROR_DOM_INDEXEDDB_ABORT_ERR;
} else if (!OperationMayProceed()) {
// The operation was canceled in some way, likely because the child process
// has crashed.
IDB_REPORT_INTERNAL_ERR();
mResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
} else {
Database* database = mTransaction->GetDatabase();
MOZ_ASSERT(database);
// Here we're actually going to perform the database operation.
nsresult rv = database->EnsureConnection();
if (NS_WARN_IF(NS_FAILED(rv))) {
mResultCode = rv;
} else {
DatabaseConnection* connection = database->GetConnection();
MOZ_ASSERT(connection);
MOZ_ASSERT(connection->GetStorageConnection());
AutoSetProgressHandler autoProgress;
if (mLoggingSerialNumber) {
rv = autoProgress.Register(connection->GetStorageConnection(), this);
if (NS_WARN_IF(NS_FAILED(rv))) {
mResultCode = rv;
}
}
if (NS_SUCCEEDED(rv)) {
if (mLoggingSerialNumber) {
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld] Request[%llu]: "
"Beginning database work",
"IndexedDB %s: P T[%lld] R[%llu]: DB Start",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId),
mTransactionLoggingSerialNumber, mLoggingSerialNumber);
}
rv = DoDatabaseWork(connection);
if (mLoggingSerialNumber) {
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld] Request[%llu]: "
"Finished database work",
"IndexedDB %s: P T[%lld] R[%llu]: DB End",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId),
mTransactionLoggingSerialNumber, mLoggingSerialNumber);
}
if (NS_FAILED(rv)) {
mResultCode = rv;
}
}
}
}
// Must set mInternalState before dispatching otherwise we will race with the
// owning thread.
if (HasPreprocessInfo()) {
mInternalState = InternalState::SendingPreprocess;
} else {
mInternalState = InternalState::SendingResults;
}
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
}
bool TransactionDatabaseOperationBase::HasPreprocessInfo() { return false; }
nsresult TransactionDatabaseOperationBase::SendPreprocessInfo() {
return NS_OK;
}
void TransactionDatabaseOperationBase::NoteContinueReceived() {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::WaitingForContinue);
mInternalState = InternalState::SendingResults;
// This TransactionDatabaseOperationBase can only be held alive by the IPDL.
// Run() can end up with clearing that last reference. So we need to add
// a self reference here.
RefPtr<TransactionDatabaseOperationBase> kungFuDeathGrip = this;
Unused << this->Run();
}
void TransactionDatabaseOperationBase::SendToConnectionPool() {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::Initial);
// Must set mInternalState before dispatching otherwise we will race with the
// connection thread.
mInternalState = InternalState::DatabaseWork;
gConnectionPool->Dispatch(mTransaction->TransactionId(), this);
mTransaction->NoteActiveRequest();
}
void TransactionDatabaseOperationBase::SendPreprocess() {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::SendingPreprocess);
SendPreprocessInfoOrResults(/* aSendPreprocessInfo */ true);
}
void TransactionDatabaseOperationBase::SendResults() {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::SendingResults);
SendPreprocessInfoOrResults(/* aSendPreprocessInfo */ false);
}
void TransactionDatabaseOperationBase::SendPreprocessInfoOrResults(
bool aSendPreprocessInfo) {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::SendingPreprocess ||
mInternalState == InternalState::SendingResults);
MOZ_ASSERT(mTransaction);
if (NS_WARN_IF(IsActorDestroyed())) {
// Don't send any notifications if the actor was destroyed already.
if (NS_SUCCEEDED(mResultCode)) {
IDB_REPORT_INTERNAL_ERR();
mResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
} else {
if (mTransaction->IsInvalidated() || mTransaction->IsAborted()) {
// Aborted transactions always see their requests fail with ABORT_ERR,
// even if the request succeeded or failed with another error.
mResultCode = NS_ERROR_DOM_INDEXEDDB_ABORT_ERR;
} else if (NS_SUCCEEDED(mResultCode)) {
if (aSendPreprocessInfo) {
// This should not release the IPDL reference.
mResultCode = SendPreprocessInfo();
} else {
// This may release the IPDL reference.
mResultCode = SendSuccessResult();
}
}
if (NS_FAILED(mResultCode)) {
// This should definitely release the IPDL reference.
if (!SendFailureResult(mResultCode)) {
// Abort the transaction.
mTransaction->Abort(mResultCode, /* aForce */ false);
}
}
}
if (aSendPreprocessInfo && NS_SUCCEEDED(mResultCode)) {
mInternalState = InternalState::WaitingForContinue;
} else {
if (mLoggingSerialNumber) {
mTransaction->NoteFinishedRequest();
}
Cleanup();
mInternalState = InternalState::Completed;
}
}
bool TransactionDatabaseOperationBase::Init(TransactionBase* aTransaction) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mInternalState == InternalState::Initial);
MOZ_ASSERT(aTransaction);
return true;
}
void TransactionDatabaseOperationBase::Cleanup() {
AssertIsOnOwningThread();
MOZ_ASSERT(mInternalState == InternalState::SendingResults);
MOZ_ASSERT(mTransaction);
mTransaction = nullptr;
}
NS_IMETHODIMP
TransactionDatabaseOperationBase::Run() {
switch (mInternalState) {
case InternalState::Initial:
SendToConnectionPool();
return NS_OK;
case InternalState::DatabaseWork:
RunOnConnectionThread();
return NS_OK;
case InternalState::SendingPreprocess:
SendPreprocess();
return NS_OK;
case InternalState::SendingResults:
SendResults();
return NS_OK;
default:
MOZ_CRASH("Bad state!");
}
}
TransactionBase::CommitOp::CommitOp(TransactionBase* aTransaction,
nsresult aResultCode)
: DatabaseOperationBase(aTransaction->GetLoggingInfo()->Id(),
aTransaction->GetLoggingInfo()->NextRequestSN()),
mTransaction(aTransaction),
mResultCode(aResultCode) {
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(LoggingSerialNumber());
}
nsresult TransactionBase::CommitOp::WriteAutoIncrementCounts() {
MOZ_ASSERT(mTransaction);
mTransaction->AssertIsOnConnectionThread();
MOZ_ASSERT(mTransaction->GetMode() == IDBTransaction::READ_WRITE ||
mTransaction->GetMode() == IDBTransaction::READ_WRITE_FLUSH ||
mTransaction->GetMode() == IDBTransaction::CLEANUP ||
mTransaction->GetMode() == IDBTransaction::VERSION_CHANGE);
const nsTArray<RefPtr<FullObjectStoreMetadata>>& metadataArray =
mTransaction->mModifiedAutoIncrementObjectStoreMetadataArray;
if (!metadataArray.IsEmpty()) {
NS_NAMED_LITERAL_CSTRING(osid, "osid");
NS_NAMED_LITERAL_CSTRING(ai, "ai");
Database* database = mTransaction->GetDatabase();
MOZ_ASSERT(database);
DatabaseConnection* connection = database->GetConnection();
MOZ_ASSERT(connection);
DatabaseConnection::CachedStatement stmt;
nsresult rv;
for (uint32_t count = metadataArray.Length(), index = 0; index < count;
index++) {
const RefPtr<FullObjectStoreMetadata>& metadata = metadataArray[index];
MOZ_ASSERT(!metadata->mDeleted);
MOZ_ASSERT(metadata->mNextAutoIncrementId > 1);
if (stmt) {
MOZ_ALWAYS_SUCCEEDS(stmt->Reset());
} else {
rv = connection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE object_store "
"SET auto_increment = :") +
ai + NS_LITERAL_CSTRING(" WHERE id = :") + osid +
NS_LITERAL_CSTRING(";"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = stmt->BindInt64ByName(osid, metadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(ai, metadata->mNextAutoIncrementId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
return NS_OK;
}
void TransactionBase::CommitOp::CommitOrRollbackAutoIncrementCounts() {
MOZ_ASSERT(mTransaction);
mTransaction->AssertIsOnConnectionThread();
MOZ_ASSERT(mTransaction->GetMode() == IDBTransaction::READ_WRITE ||
mTransaction->GetMode() == IDBTransaction::READ_WRITE_FLUSH ||
mTransaction->GetMode() == IDBTransaction::CLEANUP ||
mTransaction->GetMode() == IDBTransaction::VERSION_CHANGE);
nsTArray<RefPtr<FullObjectStoreMetadata>>& metadataArray =
mTransaction->mModifiedAutoIncrementObjectStoreMetadataArray;
if (!metadataArray.IsEmpty()) {
bool committed = NS_SUCCEEDED(mResultCode);
for (uint32_t count = metadataArray.Length(), index = 0; index < count;
index++) {
RefPtr<FullObjectStoreMetadata>& metadata = metadataArray[index];
if (committed) {
metadata->mCommittedAutoIncrementId = metadata->mNextAutoIncrementId;
} else {
metadata->mNextAutoIncrementId = metadata->mCommittedAutoIncrementId;
}
}
}
}
#ifdef DEBUG
void TransactionBase::CommitOp::AssertForeignKeyConsistency(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
MOZ_ASSERT(mTransaction);
mTransaction->AssertIsOnConnectionThread();
MOZ_ASSERT(mTransaction->GetMode() != IDBTransaction::READ_ONLY);
DatabaseConnection::CachedStatement pragmaStmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("PRAGMA foreign_keys;"), &pragmaStmt));
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(pragmaStmt->ExecuteStep(&hasResult));
MOZ_ASSERT(hasResult);
int32_t foreignKeysEnabled;
MOZ_ALWAYS_SUCCEEDS(pragmaStmt->GetInt32(0, &foreignKeysEnabled));
MOZ_ASSERT(foreignKeysEnabled, "Database doesn't have foreign keys enabled!");
DatabaseConnection::CachedStatement checkStmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("PRAGMA foreign_key_check;"), &checkStmt));
MOZ_ALWAYS_SUCCEEDS(checkStmt->ExecuteStep(&hasResult));
MOZ_ASSERT(!hasResult, "Database has inconsisistent foreign keys!");
}
#endif // DEBUG
NS_IMPL_ISUPPORTS_INHERITED0(TransactionBase::CommitOp, DatabaseOperationBase)
NS_IMETHODIMP
TransactionBase::CommitOp::Run() {
MOZ_ASSERT(mTransaction);
mTransaction->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("TransactionBase::CommitOp::Run", DOM);
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld] Request[%llu]: "
"Beginning database work",
"IndexedDB %s: P T[%lld] R[%llu]: DB Start",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId),
mTransaction->LoggingSerialNumber(), mLoggingSerialNumber);
if (mTransaction->GetMode() != IDBTransaction::READ_ONLY &&
mTransaction->mHasBeenActiveOnConnectionThread) {
Database* database = mTransaction->GetDatabase();
MOZ_ASSERT(database);
if (DatabaseConnection* connection = database->GetConnection()) {
// May be null if the VersionChangeOp was canceled.
DatabaseConnection::UpdateRefcountFunction* fileRefcountFunction =
connection->GetUpdateRefcountFunction();
if (NS_SUCCEEDED(mResultCode)) {
if (fileRefcountFunction) {
mResultCode = fileRefcountFunction->WillCommit();
NS_WARNING_ASSERTION(NS_SUCCEEDED(mResultCode),
"WillCommit() failed!");
}
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = WriteAutoIncrementCounts();
NS_WARNING_ASSERTION(NS_SUCCEEDED(mResultCode),
"WriteAutoIncrementCounts() failed!");
if (NS_SUCCEEDED(mResultCode)) {
AssertForeignKeyConsistency(connection);
mResultCode = connection->CommitWriteTransaction();
NS_WARNING_ASSERTION(NS_SUCCEEDED(mResultCode), "Commit failed!");
if (NS_SUCCEEDED(mResultCode) &&
mTransaction->GetMode() == IDBTransaction::READ_WRITE_FLUSH) {
mResultCode = connection->Checkpoint();
}
if (NS_SUCCEEDED(mResultCode) && fileRefcountFunction) {
fileRefcountFunction->DidCommit();
}
}
}
}
if (NS_FAILED(mResultCode)) {
if (fileRefcountFunction) {
fileRefcountFunction->DidAbort();
}
connection->RollbackWriteTransaction();
}
CommitOrRollbackAutoIncrementCounts();
connection->FinishWriteTransaction();
if (mTransaction->GetMode() == IDBTransaction::CLEANUP) {
connection->DoIdleProcessing(/* aNeedsCheckpoint */ true);
connection->EnableQuotaChecks();
}
}
}
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld] Request[%llu]: "
"Finished database work",
"IndexedDB %s: P T[%lld] R[%llu]: DB End",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId),
mTransaction->LoggingSerialNumber(), mLoggingSerialNumber);
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld]: "
"Finished database work",
"IndexedDB %s: P T[%lld]: DB End",
IDB_LOG_ID_STRING(mBackgroundChildLoggingId), mLoggingSerialNumber);
return NS_OK;
}
void TransactionBase::CommitOp::TransactionFinishedBeforeUnblock() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mTransaction);
AUTO_PROFILER_LABEL("CommitOp::TransactionFinishedBeforeUnblock", DOM);
if (!IsActorDestroyed()) {
mTransaction->UpdateMetadata(mResultCode);
}
}
void TransactionBase::CommitOp::TransactionFinishedAfterUnblock() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(mTransaction);
IDB_LOG_MARK(
"IndexedDB %s: Parent Transaction[%lld]: "
"Finished with result 0x%x",
"IndexedDB %s: P T[%lld]: Transaction finished (0x%x)",
IDB_LOG_ID_STRING(mTransaction->GetLoggingInfo()->Id()),
mTransaction->LoggingSerialNumber(), mResultCode);
mTransaction->SendCompleteNotification(ClampResultCode(mResultCode));
Database* database = mTransaction->GetDatabase();
MOZ_ASSERT(database);
database->UnregisterTransaction(mTransaction);
mTransaction = nullptr;
#ifdef DEBUG
// A bit hacky but the CommitOp is not really a normal database operation
// that is tied to an actor. Do this to make our assertions happy.
NoteActorDestroyed();
#endif
}
DatabaseOp::DatabaseOp(Database* aDatabase)
: DatabaseOperationBase(aDatabase->GetLoggingInfo()->Id(),
aDatabase->GetLoggingInfo()->NextRequestSN()),
mDatabase(aDatabase),
mState(State::Initial) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aDatabase);
}
nsresult DatabaseOp::SendToIOThread() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::Initial);
if (!OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
QuotaManager* quotaManager = QuotaManager::Get();
if (NS_WARN_IF(!quotaManager)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
// Must set this before dispatching otherwise we will race with the IO thread.
mState = State::DatabaseWork;
nsresult rv = quotaManager->IOThread()->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
NS_IMETHODIMP
DatabaseOp::Run() {
nsresult rv;
switch (mState) {
case State::Initial:
rv = SendToIOThread();
break;
case State::DatabaseWork:
rv = DoDatabaseWork();
break;
case State::SendingResults:
SendResults();
return NS_OK;
default:
MOZ_CRASH("Bad state!");
}
if (NS_WARN_IF(NS_FAILED(rv)) && mState != State::SendingResults) {
if (NS_SUCCEEDED(mResultCode)) {
mResultCode = rv;
}
// Must set mState before dispatching otherwise we will race with the owning
// thread.
mState = State::SendingResults;
MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
}
return NS_OK;
}
void DatabaseOp::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
NoteActorDestroyed();
}
CreateFileOp::CreateFileOp(Database* aDatabase,
const DatabaseRequestParams& aParams)
: DatabaseOp(aDatabase), mParams(aParams.get_CreateFileParams()) {
MOZ_ASSERT(aParams.type() == DatabaseRequestParams::TCreateFileParams);
}
nsresult CreateFileOp::CreateMutableFile(MutableFile** aMutableFile) {
nsCOMPtr<nsIFile> file = FileInfo::GetFileForFileInfo(mFileInfo);
if (NS_WARN_IF(!file)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
RefPtr<MutableFile> mutableFile =
MutableFile::Create(file, mDatabase, mFileInfo);
if (NS_WARN_IF(!mutableFile)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
// Transfer ownership to IPDL.
mutableFile->SetActorAlive();
if (!mDatabase->SendPBackgroundMutableFileConstructor(
mutableFile, mParams.name(), mParams.type())) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mutableFile.forget(aMutableFile);
return NS_OK;
}
nsresult CreateFileOp::DoDatabaseWork() {
AssertIsOnIOThread();
MOZ_ASSERT(mState == State::DatabaseWork);
AUTO_PROFILER_LABEL("CreateFileOp::DoDatabaseWork", DOM);
if (NS_WARN_IF(QuotaManager::IsShuttingDown()) || !OperationMayProceed()) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
FileManager* fileManager = mDatabase->GetFileManager();
mFileInfo = fileManager->GetNewFileInfo();
if (NS_WARN_IF(!mFileInfo)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
const int64_t fileId = mFileInfo->Id();
nsCOMPtr<nsIFile> journalDirectory = fileManager->EnsureJournalDirectory();
if (NS_WARN_IF(!journalDirectory)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsCOMPtr<nsIFile> journalFile =
fileManager->GetFileForId(journalDirectory, fileId);
if (NS_WARN_IF(!journalFile)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsresult rv = journalFile->Create(nsIFile::NORMAL_FILE_TYPE, 0644);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFile> fileDirectory = fileManager->GetDirectory();
if (NS_WARN_IF(!fileDirectory)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsCOMPtr<nsIFile> file = fileManager->GetFileForId(fileDirectory, fileId);
if (NS_WARN_IF(!file)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
rv = file->Create(nsIFile::NORMAL_FILE_TYPE, 0644);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Must set mState before dispatching otherwise we will race with the owning
// thread.
mState = State::SendingResults;
rv = mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void CreateFileOp::SendResults() {
AssertIsOnOwningThread();
MOZ_ASSERT(mState == State::SendingResults);
if (!IsActorDestroyed() && !mDatabase->IsInvalidated()) {
DatabaseRequestResponse response;
if (NS_SUCCEEDED(mResultCode)) {
RefPtr<MutableFile> mutableFile;
nsresult rv = CreateMutableFile(getter_AddRefs(mutableFile));
if (NS_SUCCEEDED(rv)) {
// We successfully created a mutable file so use its actor as the
// success result for this request.
CreateFileRequestResponse createResponse;
createResponse.mutableFileParent() = mutableFile;
response = createResponse;
} else {
response = ClampResultCode(rv);
#ifdef DEBUG
mResultCode = response.get_nsresult();
#endif
}
} else {
response = ClampResultCode(mResultCode);
}
Unused << PBackgroundIDBDatabaseRequestParent::Send__delete__(this,
response);
}
mState = State::Completed;
}
nsresult VersionChangeTransactionOp::SendSuccessResult() {
AssertIsOnOwningThread();
// Nothing to send here, the API assumes that this request always succeeds.
return NS_OK;
}
bool VersionChangeTransactionOp::SendFailureResult(nsresult aResultCode) {
AssertIsOnOwningThread();
// The only option here is to cause the transaction to abort.
return false;
}
void VersionChangeTransactionOp::Cleanup() {
AssertIsOnOwningThread();
#ifdef DEBUG
// A bit hacky but the VersionChangeTransactionOp is not generated in response
// to a child request like most other database operations. Do this to make our
// assertions happy.
NoteActorDestroyed();
#endif
TransactionDatabaseOperationBase::Cleanup();
}
nsresult CreateObjectStoreOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("CreateObjectStoreOp::DoDatabaseWork", DOM);
#ifdef DEBUG
{
// Make sure that we're not creating an object store with the same name as
// another that already exists. This should be impossible because we should
// have thrown an error long before now...
DatabaseConnection::CachedStatement stmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT name "
"FROM object_store "
"WHERE name = :name;"),
&stmt));
MOZ_ALWAYS_SUCCEEDS(
stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mMetadata.name()));
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(stmt->ExecuteStep(&hasResult));
MOZ_ASSERT(!hasResult);
}
#endif
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING(
"INSERT INTO object_store (id, auto_increment, name, key_path) "
"VALUES (:id, :auto_increment, :name, :key_path);"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("auto_increment"),
mMetadata.autoIncrement() ? 1 : 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mMetadata.name());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
NS_NAMED_LITERAL_CSTRING(keyPath, "key_path");
if (mMetadata.keyPath().IsValid()) {
nsAutoString keyPathSerialization;
mMetadata.keyPath().SerializeToString(keyPathSerialization);
rv = stmt->BindStringByName(keyPath, keyPathSerialization);
} else {
rv = stmt->BindNullByName(keyPath);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
{
int64_t id;
MOZ_ALWAYS_SUCCEEDS(
aConnection->GetStorageConnection()->GetLastInsertRowID(&id));
MOZ_ASSERT(mMetadata.id() == id);
}
#endif
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult DeleteObjectStoreOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("DeleteObjectStoreOp::DoDatabaseWork", DOM);
NS_NAMED_LITERAL_CSTRING(objectStoreIdString, "object_store_id");
#ifdef DEBUG
{
// Make sure |mIsLastObjectStore| is telling the truth.
DatabaseConnection::CachedStatement stmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT id "
"FROM object_store;"),
&stmt));
bool foundThisObjectStore = false;
bool foundOtherObjectStore = false;
while (true) {
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(stmt->ExecuteStep(&hasResult));
if (!hasResult) {
break;
}
int64_t id;
MOZ_ALWAYS_SUCCEEDS(stmt->GetInt64(0, &id));
if (id == mMetadata->mCommonMetadata.id()) {
foundThisObjectStore = true;
} else {
foundOtherObjectStore = true;
}
}
MOZ_ASSERT_IF(mIsLastObjectStore,
foundThisObjectStore && !foundOtherObjectStore);
MOZ_ASSERT_IF(!mIsLastObjectStore,
foundThisObjectStore && foundOtherObjectStore);
}
#endif
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (mIsLastObjectStore) {
// We can just delete everything if this is the last object store.
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM index_data;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM unique_index_data;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_data;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_store_index;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_store;"), &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
bool hasIndexes;
rv = ObjectStoreHasIndexes(aConnection, mMetadata->mCommonMetadata.id(),
&hasIndexes);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasIndexes) {
rv = DeleteObjectStoreDataTableRowsWithIndexes(
aConnection, mMetadata->mCommonMetadata.id(), void_t());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now clean up the object store index table.
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_store_index "
"WHERE object_store_id = :object_store_id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(objectStoreIdString,
mMetadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
// We only have to worry about object data if this object store has no
// indexes.
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_data "
"WHERE object_store_id = :object_store_id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(objectStoreIdString,
mMetadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_store "
"WHERE id = :object_store_id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(objectStoreIdString,
mMetadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
{
int32_t deletedRowCount;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetStorageConnection()->GetAffectedRows(
&deletedRowCount));
MOZ_ASSERT(deletedRowCount == 1);
}
#endif
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (mMetadata->mCommonMetadata.autoIncrement()) {
Transaction()->ForgetModifiedAutoIncrementObjectStore(mMetadata);
}
return NS_OK;
}
nsresult RenameObjectStoreOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("RenameObjectStoreOp::DoDatabaseWork", DOM);
#ifdef DEBUG
{
// Make sure that we're not renaming an object store with the same name as
// another that already exists. This should be impossible because we should
// have thrown an error long before now...
DatabaseConnection::CachedStatement stmt;
MOZ_ALWAYS_SUCCEEDS(
aConnection->GetCachedStatement(NS_LITERAL_CSTRING("SELECT name "
"FROM object_store "
"WHERE name = :name "
"AND id != :id;"),
&stmt));
MOZ_ALWAYS_SUCCEEDS(
stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mNewName));
MOZ_ALWAYS_SUCCEEDS(stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mId));
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(stmt->ExecuteStep(&hasResult));
MOZ_ASSERT(!hasResult);
}
#endif
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(NS_LITERAL_CSTRING("UPDATE object_store "
"SET name = :name "
"WHERE id = :id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mNewName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
CreateIndexOp::CreateIndexOp(VersionChangeTransaction* aTransaction,
const int64_t aObjectStoreId,
const IndexMetadata& aMetadata)
: VersionChangeTransactionOp(aTransaction),
mMetadata(aMetadata),
mFileManager(aTransaction->GetDatabase()->GetFileManager()),
mDatabaseId(aTransaction->DatabaseId()),
mObjectStoreId(aObjectStoreId) {
MOZ_ASSERT(aObjectStoreId);
MOZ_ASSERT(aMetadata.id());
MOZ_ASSERT(mFileManager);
MOZ_ASSERT(!mDatabaseId.IsEmpty());
}
nsresult CreateIndexOp::InsertDataFromObjectStore(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mMaybeUniqueIndexTable);
AUTO_PROFILER_LABEL("CreateIndexOp::InsertDataFromObjectStore", DOM);
nsCOMPtr<mozIStorageConnection> storageConnection =
aConnection->GetStorageConnection();
MOZ_ASSERT(storageConnection);
RefPtr<UpdateIndexDataValuesFunction> updateFunction =
new UpdateIndexDataValuesFunction(this, aConnection);
NS_NAMED_LITERAL_CSTRING(updateFunctionName, "update_index_data_values");
nsresult rv =
storageConnection->CreateFunction(updateFunctionName, 4, updateFunction);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = InsertDataFromObjectStoreInternal(aConnection);
MOZ_ALWAYS_SUCCEEDS(storageConnection->RemoveFunction(updateFunctionName));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult CreateIndexOp::InsertDataFromObjectStoreInternal(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mMaybeUniqueIndexTable);
DebugOnly<void*> storageConnection = aConnection->GetStorageConnection();
MOZ_ASSERT(storageConnection);
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE object_data "
"SET index_data_values = update_index_data_values "
"(key, index_data_values, file_ids, data) "
"WHERE object_store_id = :object_store_id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
bool CreateIndexOp::Init(TransactionBase* aTransaction) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
nsresult rv = GetUniqueIndexTableForObjectStore(aTransaction, mObjectStoreId,
mMaybeUniqueIndexTable);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
return true;
}
nsresult CreateIndexOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("CreateIndexOp::DoDatabaseWork", DOM);
#ifdef DEBUG
{
// Make sure that we're not creating an index with the same name and object
// store as another that already exists. This should be impossible because
// we should have thrown an error long before now...
DatabaseConnection::CachedStatement stmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT name "
"FROM object_store_index "
"WHERE object_store_id = :osid "
"AND name = :name;"),
&stmt));
MOZ_ALWAYS_SUCCEEDS(
stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mObjectStoreId));
MOZ_ALWAYS_SUCCEEDS(
stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mMetadata.name()));
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(stmt->ExecuteStep(&hasResult));
MOZ_ASSERT(!hasResult);
}
#endif
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING(
"INSERT INTO object_store_index (id, name, key_path, unique_index, "
"multientry, object_store_id, locale, "
"is_auto_locale) "
"VALUES (:id, :name, :key_path, :unique, :multientry, :osid, "
":locale, "
":is_auto_locale)"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mMetadata.name());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoString keyPathSerialization;
mMetadata.keyPath().SerializeToString(keyPathSerialization);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("key_path"),
keyPathSerialization);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("unique"),
mMetadata.unique() ? 1 : 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("multientry"),
mMetadata.multiEntry() ? 1 : 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (mMetadata.locale().IsEmpty()) {
rv = stmt->BindNullByName(NS_LITERAL_CSTRING("locale"));
} else {
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("locale"),
mMetadata.locale());
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("is_auto_locale"),
mMetadata.autoLocale());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
{
int64_t id;
MOZ_ALWAYS_SUCCEEDS(
aConnection->GetStorageConnection()->GetLastInsertRowID(&id));
MOZ_ASSERT(mMetadata.id() == id);
}
#endif
rv = InsertDataFromObjectStore(aConnection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
NS_IMPL_ISUPPORTS(CreateIndexOp::UpdateIndexDataValuesFunction,
mozIStorageFunction);
NS_IMETHODIMP
CreateIndexOp::UpdateIndexDataValuesFunction::OnFunctionCall(
mozIStorageValueArray* aValues, nsIVariant** _retval) {
MOZ_ASSERT(aValues);
MOZ_ASSERT(_retval);
MOZ_ASSERT(mConnection);
mConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mOp);
AUTO_PROFILER_LABEL(
"CreateIndexOp::UpdateIndexDataValuesFunction::OnFunctionCall", DOM);
#ifdef DEBUG
{
uint32_t argCount;
MOZ_ALWAYS_SUCCEEDS(aValues->GetNumEntries(&argCount));
MOZ_ASSERT(argCount == 4); // key, index_data_values, file_ids, data
int32_t valueType;
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(0, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(1, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_NULL ||
valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(2, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_NULL ||
valueType == mozIStorageValueArray::VALUE_TYPE_TEXT);
MOZ_ALWAYS_SUCCEEDS(aValues->GetTypeOfIndex(3, &valueType));
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_BLOB ||
valueType == mozIStorageValueArray::VALUE_TYPE_INTEGER);
}
#endif
StructuredCloneReadInfo cloneInfo(JS::StructuredCloneScope::DifferentProcess);
nsresult rv = GetStructuredCloneReadInfoFromValueArray(
aValues,
/* aDataIndex */ 3,
/* aFileIdsIndex */ 2, mOp->mFileManager, &cloneInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
const IndexMetadata& metadata = mOp->mMetadata;
const int64_t& objectStoreId = mOp->mObjectStoreId;
AutoTArray<IndexUpdateInfo, 32> updateInfos;
rv = IDBObjectStore::DeserializeIndexValueToUpdateInfos(
metadata.id(), metadata.keyPath(), metadata.unique(),
metadata.multiEntry(), metadata.locale(), cloneInfo, updateInfos);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (updateInfos.IsEmpty()) {
// XXX See if we can do this without copying...
nsCOMPtr<nsIVariant> unmodifiedValue;
// No changes needed, just return the original value.
int32_t valueType;
rv = aValues->GetTypeOfIndex(1, &valueType);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_NULL ||
valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
if (valueType == mozIStorageValueArray::VALUE_TYPE_NULL) {
unmodifiedValue = new storage::NullVariant();
unmodifiedValue.forget(_retval);
return NS_OK;
}
MOZ_ASSERT(valueType == mozIStorageValueArray::VALUE_TYPE_BLOB);
const uint8_t* blobData;
uint32_t blobDataLength;
rv = aValues->GetSharedBlob(1, &blobDataLength, &blobData);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
std::pair<uint8_t*, int> copiedBlobDataPair(
static_cast<uint8_t*>(malloc(blobDataLength)), blobDataLength);
if (!copiedBlobDataPair.first) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
memcpy(copiedBlobDataPair.first, blobData, blobDataLength);
unmodifiedValue = new storage::AdoptedBlobVariant(copiedBlobDataPair);
unmodifiedValue.forget(_retval);
return NS_OK;
}
Key key;
rv = key.SetFromValueArray(aValues, 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
AutoTArray<IndexDataValue, 32> indexValues;
rv = ReadCompressedIndexDataValues(aValues, 1, indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
const bool hadPreviousIndexValues = !indexValues.IsEmpty();
const uint32_t updateInfoCount = updateInfos.Length();
if (NS_WARN_IF(!indexValues.SetCapacity(
indexValues.Length() + updateInfoCount, fallible))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_OUT_OF_MEMORY;
}
// First construct the full list to update the index_data_values row.
for (uint32_t index = 0; index < updateInfoCount; index++) {
const IndexUpdateInfo& info = updateInfos[index];
MOZ_ALWAYS_TRUE(indexValues.InsertElementSorted(
IndexDataValue(metadata.id(), metadata.unique(), info.value(),
info.localizedValue()),
fallible));
}
UniqueFreePtr<uint8_t> indexValuesBlob;
uint32_t indexValuesBlobLength;
rv = MakeCompressedIndexDataValues(indexValues, indexValuesBlob,
&indexValuesBlobLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!indexValuesBlobLength == !(indexValuesBlob.get()));
nsCOMPtr<nsIVariant> value;
if (!indexValuesBlob) {
value = new storage::NullVariant();
value.forget(_retval);
return NS_OK;
}
// Now insert the new table rows. We only need to construct a new list if
// the full list is different.
if (hadPreviousIndexValues) {
indexValues.ClearAndRetainStorage();
MOZ_ASSERT(indexValues.Capacity() >= updateInfoCount);
for (uint32_t index = 0; index < updateInfoCount; index++) {
const IndexUpdateInfo& info = updateInfos[index];
MOZ_ALWAYS_TRUE(indexValues.InsertElementSorted(
IndexDataValue(metadata.id(), metadata.unique(), info.value(),
info.localizedValue()),
fallible));
}
}
rv = InsertIndexTableRows(mConnection, objectStoreId, key, indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
std::pair<uint8_t*, int> copiedBlobDataPair(indexValuesBlob.release(),
indexValuesBlobLength);
value = new storage::AdoptedBlobVariant(copiedBlobDataPair);
value.forget(_retval);
return NS_OK;
}
DeleteIndexOp::DeleteIndexOp(VersionChangeTransaction* aTransaction,
const int64_t aObjectStoreId,
const int64_t aIndexId, const bool aUnique,
const bool aIsLastIndex)
: VersionChangeTransactionOp(aTransaction),
mObjectStoreId(aObjectStoreId),
mIndexId(aIndexId),
mUnique(aUnique),
mIsLastIndex(aIsLastIndex) {
MOZ_ASSERT(aObjectStoreId);
MOZ_ASSERT(aIndexId);
}
nsresult DeleteIndexOp::RemoveReferencesToIndex(
DatabaseConnection* aConnection, const Key& aObjectStoreKey,
nsTArray<IndexDataValue>& aIndexValues) {
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aConnection);
MOZ_ASSERT(!aObjectStoreKey.IsUnset());
MOZ_ASSERT_IF(!mIsLastIndex, !aIndexValues.IsEmpty());
struct MOZ_STACK_CLASS IndexIdComparator final {
bool Equals(const IndexDataValue& aA, const IndexDataValue& aB) const {
// Ignore everything but the index id.
return aA.mIndexId == aB.mIndexId;
};
bool LessThan(const IndexDataValue& aA, const IndexDataValue& aB) const {
return aA.mIndexId < aB.mIndexId;
};
};
AUTO_PROFILER_LABEL("DeleteIndexOp::RemoveReferencesToIndex", DOM);
if (mIsLastIndex) {
// There is no need to parse the previous entry in the index_data_values
// column if this is the last index. Simply set it to NULL.
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE object_data "
"SET index_data_values = NULL "
"WHERE object_store_id = :object_store_id "
"AND key = :key;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = aObjectStoreKey.BindToStatement(stmt, NS_LITERAL_CSTRING("key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
IndexDataValue search;
search.mIndexId = mIndexId;
// This returns the first element that matches our index id found during a
// binary search. However, there could still be other elements before that.
size_t firstElementIndex =
aIndexValues.BinaryIndexOf(search, IndexIdComparator());
if (NS_WARN_IF(firstElementIndex == aIndexValues.NoIndex) ||
NS_WARN_IF(aIndexValues[firstElementIndex].mIndexId != mIndexId)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
MOZ_ASSERT(aIndexValues[firstElementIndex].mIndexId == mIndexId);
// Walk backwards to find the real first index.
while (firstElementIndex) {
if (aIndexValues[firstElementIndex - 1].mIndexId == mIndexId) {
firstElementIndex--;
} else {
break;
}
}
MOZ_ASSERT(aIndexValues[firstElementIndex].mIndexId == mIndexId);
const size_t indexValuesLength = aIndexValues.Length();
// Find the last element with the same index id.
size_t lastElementIndex = firstElementIndex;
while (lastElementIndex < indexValuesLength) {
if (aIndexValues[lastElementIndex].mIndexId == mIndexId) {
lastElementIndex++;
} else {
break;
}
}
MOZ_ASSERT(lastElementIndex > firstElementIndex);
MOZ_ASSERT_IF(lastElementIndex < indexValuesLength,
aIndexValues[lastElementIndex].mIndexId != mIndexId);
MOZ_ASSERT(aIndexValues[lastElementIndex - 1].mIndexId == mIndexId);
aIndexValues.RemoveElementsAt(firstElementIndex,
lastElementIndex - firstElementIndex);
nsresult rv = UpdateIndexValues(aConnection, mObjectStoreId, aObjectStoreKey,
aIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult DeleteIndexOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
#ifdef DEBUG
{
// Make sure |mIsLastIndex| is telling the truth.
DatabaseConnection::CachedStatement stmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT id "
"FROM object_store_index "
"WHERE object_store_id = :object_store_id;"),
&stmt));
MOZ_ALWAYS_SUCCEEDS(stmt->BindInt64ByName(
NS_LITERAL_CSTRING("object_store_id"), mObjectStoreId));
bool foundThisIndex = false;
bool foundOtherIndex = false;
while (true) {
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(stmt->ExecuteStep(&hasResult));
if (!hasResult) {
break;
}
int64_t id;
MOZ_ALWAYS_SUCCEEDS(stmt->GetInt64(0, &id));
if (id == mIndexId) {
foundThisIndex = true;
} else {
foundOtherIndex = true;
}
}
MOZ_ASSERT_IF(mIsLastIndex, foundThisIndex && !foundOtherIndex);
MOZ_ASSERT_IF(!mIsLastIndex, foundThisIndex && foundOtherIndex);
}
#endif
AUTO_PROFILER_LABEL("DeleteIndexOp::DoDatabaseWork", DOM);
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement selectStmt;
// mozStorage warns that these statements trigger a sort operation but we
// don't care because this is a very rare call and we expect it to be slow.
// The cost of having an index on this field is too high.
if (mUnique) {
if (mIsLastIndex) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("/* do not warn (bug someone else) */ "
"SELECT value, object_data_key "
"FROM unique_index_data "
"WHERE index_id = :index_id "
"ORDER BY object_data_key ASC;"),
&selectStmt);
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING(
"/* do not warn (bug out) */ "
"SELECT unique_index_data.value, "
"unique_index_data.object_data_key, "
"object_data.index_data_values "
"FROM unique_index_data "
"JOIN object_data "
"ON unique_index_data.object_data_key = object_data.key "
"WHERE unique_index_data.index_id = :index_id "
"AND object_data.object_store_id = :object_store_id "
"ORDER BY unique_index_data.object_data_key ASC;"),
&selectStmt);
}
} else {
if (mIsLastIndex) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("/* do not warn (bug me not) */ "
"SELECT value, object_data_key "
"FROM index_data "
"WHERE index_id = :index_id "
"AND object_store_id = :object_store_id "
"ORDER BY object_data_key ASC;"),
&selectStmt);
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING(
"/* do not warn (bug off) */ "
"SELECT index_data.value, "
"index_data.object_data_key, "
"object_data.index_data_values "
"FROM index_data "
"JOIN object_data "
"ON index_data.object_data_key = object_data.key "
"WHERE index_data.index_id = :index_id "
"AND object_data.object_store_id = :object_store_id "
"ORDER BY index_data.object_data_key ASC;"),
&selectStmt);
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
NS_NAMED_LITERAL_CSTRING(indexIdString, "index_id");
rv = selectStmt->BindInt64ByName(indexIdString, mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!mUnique || !mIsLastIndex) {
rv = selectStmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
NS_NAMED_LITERAL_CSTRING(valueString, "value");
NS_NAMED_LITERAL_CSTRING(objectDataKeyString, "object_data_key");
DatabaseConnection::CachedStatement deleteIndexRowStmt;
DatabaseConnection::CachedStatement nullIndexDataValuesStmt;
Key lastObjectStoreKey;
AutoTArray<IndexDataValue, 32> lastIndexValues;
bool hasResult;
while (NS_SUCCEEDED(rv = selectStmt->ExecuteStep(&hasResult)) && hasResult) {
// We always need the index key to delete the index row.
Key indexKey;
rv = indexKey.SetFromStatement(selectStmt, 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(indexKey.IsUnset())) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
// Don't call |lastObjectStoreKey.BindToStatement()| directly because we
// don't want to copy the same key multiple times.
const uint8_t* objectStoreKeyData;
uint32_t objectStoreKeyDataLength;
rv = selectStmt->GetSharedBlob(1, &objectStoreKeyDataLength,
&objectStoreKeyData);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!objectStoreKeyDataLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
nsDependentCString currentObjectStoreKeyBuffer(
reinterpret_cast<const char*>(objectStoreKeyData),
objectStoreKeyDataLength);
if (currentObjectStoreKeyBuffer != lastObjectStoreKey.GetBuffer()) {
// We just walked to the next object store key.
if (!lastObjectStoreKey.IsUnset()) {
// Before we move on to the next key we need to update the previous
// key's index_data_values column.
rv = RemoveReferencesToIndex(aConnection, lastObjectStoreKey,
lastIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Save the object store key.
lastObjectStoreKey = Key(currentObjectStoreKeyBuffer);
// And the |index_data_values| row if this isn't the only index.
if (!mIsLastIndex) {
lastIndexValues.ClearAndRetainStorage();
rv = ReadCompressedIndexDataValues(selectStmt, 2, lastIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(lastIndexValues.IsEmpty())) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
}
}
// Now delete the index row.
if (deleteIndexRowStmt) {
MOZ_ALWAYS_SUCCEEDS(deleteIndexRowStmt->Reset());
} else {
if (mUnique) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM unique_index_data "
"WHERE index_id = :index_id "
"AND value = :value;"),
&deleteIndexRowStmt);
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM index_data "
"WHERE index_id = :index_id "
"AND value = :value "
"AND object_data_key = :object_data_key;"),
&deleteIndexRowStmt);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = deleteIndexRowStmt->BindInt64ByName(indexIdString, mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = indexKey.BindToStatement(deleteIndexRowStmt, valueString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!mUnique) {
rv = lastObjectStoreKey.BindToStatement(deleteIndexRowStmt,
objectDataKeyString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = deleteIndexRowStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Take care of the last key.
if (!lastObjectStoreKey.IsUnset()) {
MOZ_ASSERT_IF(!mIsLastIndex, !lastIndexValues.IsEmpty());
rv = RemoveReferencesToIndex(aConnection, lastObjectStoreKey,
lastIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
DatabaseConnection::CachedStatement deleteStmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_store_index "
"WHERE id = :index_id;"),
&deleteStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = deleteStmt->BindInt64ByName(indexIdString, mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = deleteStmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
#ifdef DEBUG
{
int32_t deletedRowCount;
MOZ_ALWAYS_SUCCEEDS(
aConnection->GetStorageConnection()->GetAffectedRows(&deletedRowCount));
MOZ_ASSERT(deletedRowCount == 1);
}
#endif
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult RenameIndexOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("RenameIndexOp::DoDatabaseWork", DOM);
#ifdef DEBUG
{
// Make sure that we're not renaming an index with the same name as another
// that already exists. This should be impossible because we should have
// thrown an error long before now...
DatabaseConnection::CachedStatement stmt;
MOZ_ALWAYS_SUCCEEDS(aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT name "
"FROM object_store_index "
"WHERE object_store_id = :object_store_id "
"AND name = :name "
"AND id != :id;"),
&stmt));
MOZ_ALWAYS_SUCCEEDS(stmt->BindInt64ByName(
NS_LITERAL_CSTRING("object_store_id"), mObjectStoreId));
MOZ_ALWAYS_SUCCEEDS(
stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mNewName));
MOZ_ALWAYS_SUCCEEDS(
stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mIndexId));
bool hasResult;
MOZ_ALWAYS_SUCCEEDS(stmt->ExecuteStep(&hasResult));
MOZ_ASSERT(!hasResult);
}
#else
Unused << mObjectStoreId;
#endif
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("UPDATE object_store_index "
"SET name = :name "
"WHERE id = :id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mNewName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// static
nsresult NormalTransactionOp::ObjectStoreHasIndexes(
NormalTransactionOp* aOp, DatabaseConnection* aConnection,
const int64_t aObjectStoreId, const bool aMayHaveIndexes,
bool* aHasIndexes) {
MOZ_ASSERT(aOp);
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(aObjectStoreId);
MOZ_ASSERT(aHasIndexes);
bool hasIndexes;
if (aOp->Transaction()->GetMode() == IDBTransaction::VERSION_CHANGE &&
aMayHaveIndexes) {
// If this is a version change transaction then mObjectStoreMayHaveIndexes
// could be wrong (e.g. if a unique index failed to be created due to a
// constraint error). We have to check on this thread by asking the database
// directly.
nsresult rv = DatabaseOperationBase::ObjectStoreHasIndexes(
aConnection, aObjectStoreId, &hasIndexes);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
MOZ_ASSERT(NS_SUCCEEDED(DatabaseOperationBase::ObjectStoreHasIndexes(
aConnection, aObjectStoreId, &hasIndexes)));
MOZ_ASSERT(aMayHaveIndexes == hasIndexes);
hasIndexes = aMayHaveIndexes;
}
*aHasIndexes = hasIndexes;
return NS_OK;
}
nsresult NormalTransactionOp::GetPreprocessParams(PreprocessParams& aParams) {
return NS_OK;
}
nsresult NormalTransactionOp::SendPreprocessInfo() {
AssertIsOnOwningThread();
MOZ_ASSERT(!IsActorDestroyed());
PreprocessParams params;
nsresult rv = GetPreprocessParams(params);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(params.type() != PreprocessParams::T__None);
if (NS_WARN_IF(!PBackgroundIDBRequestParent::SendPreprocess(params))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
nsresult NormalTransactionOp::SendSuccessResult() {
AssertIsOnOwningThread();
if (!IsActorDestroyed()) {
static const size_t kMaxIDBMsgOverhead = 1024 * 1024 * 10; // 10MB
const uint32_t maximalSizeFromPref =
IndexedDatabaseManager::MaxSerializedMsgSize();
MOZ_ASSERT(maximalSizeFromPref > kMaxIDBMsgOverhead);
const size_t kMaxMessageSize = maximalSizeFromPref - kMaxIDBMsgOverhead;
RequestResponse response;
size_t responseSize = kMaxMessageSize;
GetResponse(response, &responseSize);
if (responseSize >= kMaxMessageSize) {
nsPrintfCString warning(
"The serialized value is too large"
" (size=%zu bytes, max=%zu bytes).",
responseSize, kMaxMessageSize);
NS_WARNING(warning.get());
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
MOZ_ASSERT(response.type() != RequestResponse::T__None);
if (response.type() == RequestResponse::Tnsresult) {
MOZ_ASSERT(NS_FAILED(response.get_nsresult()));
return response.get_nsresult();
}
if (NS_WARN_IF(
!PBackgroundIDBRequestParent::Send__delete__(this, response))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
#ifdef DEBUG
mResponseSent = true;
#endif
return NS_OK;
}
bool NormalTransactionOp::SendFailureResult(nsresult aResultCode) {
AssertIsOnOwningThread();
MOZ_ASSERT(NS_FAILED(aResultCode));
bool result = false;
if (!IsActorDestroyed()) {
result = PBackgroundIDBRequestParent::Send__delete__(
this, ClampResultCode(aResultCode));
}
#ifdef DEBUG
mResponseSent = true;
#endif
return result;
}
void NormalTransactionOp::Cleanup() {
AssertIsOnOwningThread();
MOZ_ASSERT_IF(!IsActorDestroyed(), mResponseSent);
TransactionDatabaseOperationBase::Cleanup();
}
void NormalTransactionOp::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnOwningThread();
NoteActorDestroyed();
}
mozilla::ipc::IPCResult NormalTransactionOp::RecvContinue(
const PreprocessResponse& aResponse) {
AssertIsOnOwningThread();
switch (aResponse.type()) {
case PreprocessResponse::Tnsresult:
mResultCode = aResponse.get_nsresult();
break;
case PreprocessResponse::TObjectStoreGetPreprocessResponse:
break;
case PreprocessResponse::TObjectStoreGetAllPreprocessResponse:
break;
default:
MOZ_CRASH("Should never get here!");
}
NoteContinueReceived();
return IPC_OK();
}
ObjectStoreAddOrPutRequestOp::ObjectStoreAddOrPutRequestOp(
TransactionBase* aTransaction, const RequestParams& aParams)
: NormalTransactionOp(aTransaction),
mParams(aParams.type() == RequestParams::TObjectStoreAddParams
? aParams.get_ObjectStoreAddParams().commonParams()
: aParams.get_ObjectStorePutParams().commonParams()),
mGroup(aTransaction->GetDatabase()->Group()),
mOrigin(aTransaction->GetDatabase()->Origin()),
mPersistenceType(aTransaction->GetDatabase()->Type()),
mOverwrite(aParams.type() == RequestParams::TObjectStorePutParams),
mObjectStoreMayHaveIndexes(false) {
MOZ_ASSERT(aParams.type() == RequestParams::TObjectStoreAddParams ||
aParams.type() == RequestParams::TObjectStorePutParams);
mMetadata =
aTransaction->GetMetadataForObjectStoreId(mParams.objectStoreId());
MOZ_ASSERT(mMetadata);
mObjectStoreMayHaveIndexes = mMetadata->HasLiveIndexes();
mDataOverThreshold =
snappy::MaxCompressedLength(mParams.cloneInfo().data().data.Size()) >
IndexedDatabaseManager::DataThreshold();
}
nsresult ObjectStoreAddOrPutRequestOp::RemoveOldIndexDataValues(
DatabaseConnection* aConnection) {
AssertIsOnConnectionThread();
MOZ_ASSERT(aConnection);
MOZ_ASSERT(mOverwrite);
MOZ_ASSERT(!mResponse.IsUnset());
#ifdef DEBUG
{
bool hasIndexes = false;
MOZ_ASSERT(NS_SUCCEEDED(DatabaseOperationBase::ObjectStoreHasIndexes(
aConnection, mParams.objectStoreId(), &hasIndexes)));
MOZ_ASSERT(hasIndexes,
"Don't use this slow method if there are no indexes!");
}
#endif
DatabaseConnection::CachedStatement indexValuesStmt;
nsresult rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT index_data_values "
"FROM object_data "
"WHERE object_store_id = :object_store_id "
"AND key = :key;"),
&indexValuesStmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = indexValuesStmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
mParams.objectStoreId());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mResponse.BindToStatement(indexValuesStmt, NS_LITERAL_CSTRING("key"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool hasResult;
rv = indexValuesStmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasResult) {
AutoTArray<IndexDataValue, 32> existingIndexValues;
rv = ReadCompressedIndexDataValues(indexValuesStmt, 0, existingIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = DeleteIndexDataTableRows(aConnection, mResponse, existingIndexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
return NS_OK;
}
bool ObjectStoreAddOrPutRequestOp::Init(TransactionBase* aTransaction) {
AssertIsOnOwningThread();
const nsTArray<IndexUpdateInfo>& indexUpdateInfos =
mParams.indexUpdateInfos();
if (!indexUpdateInfos.IsEmpty()) {
const uint32_t count = indexUpdateInfos.Length();
mUniqueIndexTable.emplace();
for (uint32_t index = 0; index < count; index++) {
const IndexUpdateInfo& updateInfo = indexUpdateInfos[index];
RefPtr<FullIndexMetadata> indexMetadata;
MOZ_ALWAYS_TRUE(mMetadata->mIndexes.Get(updateInfo.indexId(),
getter_AddRefs(indexMetadata)));
MOZ_ASSERT(!indexMetadata->mDeleted);
const int64_t& indexId = indexMetadata->mCommonMetadata.id();
const bool& unique = indexMetadata->mCommonMetadata.unique();
MOZ_ASSERT(indexId == updateInfo.indexId());
MOZ_ASSERT_IF(!indexMetadata->mCommonMetadata.multiEntry(),
!mUniqueIndexTable.ref().Get(indexId));
if (NS_WARN_IF(!mUniqueIndexTable.ref().Put(indexId, unique, fallible))) {
return false;
}
}
} else if (mOverwrite) {
mUniqueIndexTable.emplace();
}
#ifdef DEBUG
if (mUniqueIndexTable.isSome()) {
mUniqueIndexTable.ref().MarkImmutable();
}
#endif
const nsTArray<FileAddInfo>& fileAddInfos = mParams.fileAddInfos();
if (!fileAddInfos.IsEmpty()) {
const uint32_t count = fileAddInfos.Length();
if (NS_WARN_IF(!mStoredFileInfos.SetCapacity(count, fallible))) {
return false;
}
for (uint32_t index = 0; index < count; index++) {
const FileAddInfo& fileAddInfo = fileAddInfos[index];
MOZ_ASSERT(fileAddInfo.type() == StructuredCloneFile::eBlob ||
fileAddInfo.type() == StructuredCloneFile::eMutableFile ||
fileAddInfo.type() == StructuredCloneFile::eWasmBytecode ||
fileAddInfo.type() == StructuredCloneFile::eWasmCompiled);
const DatabaseOrMutableFile& file = fileAddInfo.file();
StoredFileInfo* storedFileInfo = mStoredFileInfos.AppendElement(fallible);
MOZ_ASSERT(storedFileInfo);
switch (fileAddInfo.type()) {
case StructuredCloneFile::eBlob: {
MOZ_ASSERT(file.type() ==
DatabaseOrMutableFile::TPBackgroundIDBDatabaseFileParent);
storedFileInfo->mFileActor = static_cast<DatabaseFile*>(
file.get_PBackgroundIDBDatabaseFileParent());
MOZ_ASSERT(storedFileInfo->mFileActor);
storedFileInfo->mFileInfo = storedFileInfo->mFileActor->GetFileInfo();
MOZ_ASSERT(storedFileInfo->mFileInfo);
storedFileInfo->mType = StructuredCloneFile::eBlob;
break;
}
case StructuredCloneFile::eMutableFile: {
MOZ_ASSERT(file.type() ==
DatabaseOrMutableFile::TPBackgroundMutableFileParent);
auto mutableFileActor = static_cast<MutableFile*>(
file.get_PBackgroundMutableFileParent());
MOZ_ASSERT(mutableFileActor);
storedFileInfo->mFileInfo = mutableFileActor->GetFileInfo();
MOZ_ASSERT(storedFileInfo->mFileInfo);
storedFileInfo->mType = StructuredCloneFile::eMutableFile;
break;
}
case StructuredCloneFile::eWasmBytecode:
case StructuredCloneFile::eWasmCompiled: {
MOZ_ASSERT(file.type() ==
DatabaseOrMutableFile::TPBackgroundIDBDatabaseFileParent);
storedFileInfo->mFileActor = static_cast<DatabaseFile*>(
file.get_PBackgroundIDBDatabaseFileParent());
MOZ_ASSERT(storedFileInfo->mFileActor);
storedFileInfo->mFileInfo = storedFileInfo->mFileActor->GetFileInfo();
MOZ_ASSERT(storedFileInfo->mFileInfo);
storedFileInfo->mType = fileAddInfo.type();
break;
}
default:
MOZ_CRASH("Should never get here!");
}
}
}
if (mDataOverThreshold) {
StoredFileInfo* storedFileInfo = mStoredFileInfos.AppendElement(fallible);
MOZ_ASSERT(storedFileInfo);
RefPtr<FileManager> fileManager =
aTransaction->GetDatabase()->GetFileManager();
MOZ_ASSERT(fileManager);
storedFileInfo->mFileInfo = fileManager->GetNewFileInfo();
storedFileInfo->mInputStream =
new SCInputStream(mParams.cloneInfo().data().data);
storedFileInfo->mType = StructuredCloneFile::eStructuredClone;
}
return true;
}
nsresult ObjectStoreAddOrPutRequestOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(aConnection->GetStorageConnection());
AUTO_PROFILER_LABEL("ObjectStoreAddOrPutRequestOp::DoDatabaseWork", DOM);
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool objectStoreHasIndexes;
rv =
ObjectStoreHasIndexes(this, aConnection, mParams.objectStoreId(),
mObjectStoreMayHaveIndexes, &objectStoreHasIndexes);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// This will be the final key we use.
Key& key = mResponse;
key = mParams.key();
const bool keyUnset = key.IsUnset();
const int64_t osid = mParams.objectStoreId();
// First delete old index_data_values if we're overwriting something and we
// have indexes.
if (mOverwrite && !keyUnset && objectStoreHasIndexes) {
rv = RemoveOldIndexDataValues(aConnection);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// The "|| keyUnset" here is mostly a debugging tool. If a key isn't
// specified we should never have a collision and so it shouldn't matter
// if we allow overwrite or not. By not allowing overwrite we raise
// detectable errors rather than corrupting data.
DatabaseConnection::CachedStatement stmt;
if (!mOverwrite || keyUnset) {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("INSERT INTO object_data "
"(object_store_id, key, file_ids, data) "
"VALUES (:osid, :key, :file_ids, :data);"),
&stmt);
} else {
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("INSERT OR REPLACE INTO object_data "
"(object_store_id, key, file_ids, data) "
"VALUES (:osid, :key, :file_ids, :data);"),
&stmt);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), osid);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
const SerializedStructuredCloneWriteInfo& cloneInfo = mParams.cloneInfo();
const JSStructuredCloneData& cloneData = cloneInfo.data().data;
size_t cloneDataSize = cloneData.Size();
MOZ_ASSERT(!keyUnset || mMetadata->mCommonMetadata.autoIncrement(),
"Should have key unless autoIncrement");
int64_t autoIncrementNum = 0;
if (mMetadata->mCommonMetadata.autoIncrement()) {
if (keyUnset) {
autoIncrementNum = mMetadata->mNextAutoIncrementId;
MOZ_ASSERT(autoIncrementNum > 0);
if (autoIncrementNum > (1LL << 53)) {
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
}
key.SetFromInteger(autoIncrementNum);
} else if (key.IsFloat()) {
double numericKey = key.ToFloat();
numericKey = std::min(numericKey, double(1LL << 53));
numericKey = floor(numericKey);
if (numericKey >= mMetadata->mNextAutoIncrementId) {
autoIncrementNum = numericKey;
}
}
if (keyUnset && mMetadata->mCommonMetadata.keyPath().IsValid()) {
const SerializedStructuredCloneWriteInfo& cloneInfo = mParams.cloneInfo();
MOZ_ASSERT(cloneInfo.offsetToKeyProp());
MOZ_ASSERT(cloneDataSize > sizeof(uint64_t));
MOZ_ASSERT(cloneInfo.offsetToKeyProp() <=
(cloneDataSize - sizeof(uint64_t)));
// Special case where someone put an object into an autoIncrement'ing
// objectStore with no key in its keyPath set. We needed to figure out
// which row id we would get above before we could set that properly.
uint64_t keyPropValue =
ReinterpretDoubleAsUInt64(static_cast<double>(autoIncrementNum));
static const size_t keyPropSize = sizeof(uint64_t);
char keyPropBuffer[keyPropSize];
LittleEndian::writeUint64(keyPropBuffer, keyPropValue);
auto iter = cloneData.Start();
MOZ_ALWAYS_TRUE(cloneData.Advance(iter, cloneInfo.offsetToKeyProp()));
MOZ_ALWAYS_TRUE(cloneData.UpdateBytes(iter, keyPropBuffer, keyPropSize));
}
}
key.BindToStatement(stmt, NS_LITERAL_CSTRING("key"));
if (mDataOverThreshold) {
// The data we store in the SQLite database is a (signed) 64-bit integer.
// The flags are left-shifted 32 bits so the max value is 0xFFFFFFFF.
// The file_ids index occupies the lower 32 bits and its max is 0xFFFFFFFF.
static const uint32_t kCompressedFlag = (1 << 0);
uint32_t flags = 0;
flags |= kCompressedFlag;
uint32_t index = mStoredFileInfos.Length() - 1;
int64_t data = (uint64_t(flags) << 32) | index;
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("data"), data);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
nsCString flatCloneData;
flatCloneData.SetLength(cloneDataSize);
auto iter = cloneData.Start();
cloneData.ReadBytes(iter, flatCloneData.BeginWriting(), cloneDataSize);
// Compress the bytes before adding into the database.
const char* uncompressed = flatCloneData.BeginReading();
size_t uncompressedLength = cloneDataSize;
size_t compressedLength = snappy::MaxCompressedLength(uncompressedLength);
UniqueFreePtr<char> compressed(
static_cast<char*>(malloc(compressedLength)));
if (NS_WARN_IF(!compressed)) {
return NS_ERROR_OUT_OF_MEMORY;
}
snappy::RawCompress(uncompressed, uncompressedLength, compressed.get(),
&compressedLength);
uint8_t* dataBuffer = reinterpret_cast<uint8_t*>(compressed.release());
size_t dataBufferLength = compressedLength;
rv = stmt->BindAdoptedBlobByName(NS_LITERAL_CSTRING("data"), dataBuffer,
dataBufferLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (!mStoredFileInfos.IsEmpty()) {
// Moved outside the loop to allow it to be cached when demanded by the
// first write. (We may have mStoredFileInfos without any required writes.)
Maybe<FileHelper> fileHelper;
nsAutoString fileIds;
for (uint32_t count = mStoredFileInfos.Length(), index = 0; index < count;
index++) {
StoredFileInfo& storedFileInfo = mStoredFileInfos[index];
MOZ_ASSERT(storedFileInfo.mFileInfo);
// If there is a StoredFileInfo, then one of the following is true:
// - This was an overflow structured clone and storedFileInfo.mInputStream
// MUST be non-null.
// - This is a reference to a Blob that may or may not have already been
// written to disk. storedFileInfo.mFileActor MUST be non-null, but
// its GetInputStream may return null (so don't assert on them).
// - It's a mutable file. No writing will be performed.
MOZ_ASSERT(storedFileInfo.mInputStream || storedFileInfo.mFileActor ||
storedFileInfo.mType == StructuredCloneFile::eMutableFile);
nsCOMPtr<nsIInputStream> inputStream;
// Check for an explicit stream, like a structured clone stream.
storedFileInfo.mInputStream.swap(inputStream);
// Check for a blob-backed stream otherwise.
if (!inputStream && storedFileInfo.mFileActor) {
ErrorResult streamRv;
inputStream = storedFileInfo.mFileActor->GetInputStream(streamRv);
if (NS_WARN_IF(streamRv.Failed())) {
return streamRv.StealNSResult();
}
}
if (inputStream) {
if (fileHelper.isNothing()) {
RefPtr<FileManager> fileManager =
Transaction()->GetDatabase()->GetFileManager();
MOZ_ASSERT(fileManager);
fileHelper.emplace(fileManager);
rv = fileHelper->Init();
if (NS_WARN_IF(NS_FAILED(rv))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
RefPtr<FileInfo>& fileInfo = storedFileInfo.mFileInfo;
nsCOMPtr<nsIFile> file = fileHelper->GetFile(fileInfo);
if (NS_WARN_IF(!file)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsCOMPtr<nsIFile> journalFile = fileHelper->GetJournalFile(fileInfo);
if (NS_WARN_IF(!journalFile)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
bool compress =
storedFileInfo.mType == StructuredCloneFile::eStructuredClone;
rv = fileHelper->CreateFileFromStream(file, journalFile, inputStream,
compress);
if (NS_FAILED(rv) &&
NS_ERROR_GET_MODULE(rv) != NS_ERROR_MODULE_DOM_INDEXEDDB) {
IDB_REPORT_INTERNAL_ERR();
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
// Try to remove the file if the copy failed.
nsresult rv2 = fileHelper->RemoveFile(file, journalFile);
if (NS_WARN_IF(NS_FAILED(rv2))) {
return rv;
}
return rv;
}
if (storedFileInfo.mFileActor) {
storedFileInfo.mFileActor->WriteSucceededClearBlobImpl();
}
}
if (index) {
fileIds.Append(' ');
}
storedFileInfo.Serialize(fileIds);
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("file_ids"), fileIds);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
rv = stmt->BindNullByName(NS_LITERAL_CSTRING("file_ids"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = stmt->Execute();
if (rv == NS_ERROR_STORAGE_CONSTRAINT) {
MOZ_ASSERT(!keyUnset, "Generated key had a collision!");
return rv;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Update our indexes if needed.
if (!mParams.indexUpdateInfos().IsEmpty()) {
MOZ_ASSERT(mUniqueIndexTable.isSome());
// Write the index_data_values column.
AutoTArray<IndexDataValue, 32> indexValues;
rv = IndexDataValuesFromUpdateInfos(mParams.indexUpdateInfos(),
mUniqueIndexTable.ref(), indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = UpdateIndexValues(aConnection, osid, key, indexValues);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = InsertIndexTableRows(aConnection, osid, key, indexValues);
if (NS_FAILED(rv)) {
return rv;
}
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (autoIncrementNum) {
mMetadata->mNextAutoIncrementId = autoIncrementNum + 1;
Transaction()->NoteModifiedAutoIncrementObjectStore(mMetadata);
}
return NS_OK;
}
void ObjectStoreAddOrPutRequestOp::GetResponse(RequestResponse& aResponse,
size_t* aResponseSize) {
AssertIsOnOwningThread();
if (mOverwrite) {
aResponse = ObjectStorePutResponse(mResponse);
*aResponseSize = mResponse.GetBuffer().Length();
} else {
aResponse = ObjectStoreAddResponse(mResponse);
*aResponseSize = mResponse.GetBuffer().Length();
}
}
void ObjectStoreAddOrPutRequestOp::Cleanup() {
AssertIsOnOwningThread();
mStoredFileInfos.Clear();
NormalTransactionOp::Cleanup();
}
NS_IMPL_ISUPPORTS(ObjectStoreAddOrPutRequestOp::SCInputStream, nsIInputStream)
NS_IMETHODIMP
ObjectStoreAddOrPutRequestOp::SCInputStream::Close() { return NS_OK; }
NS_IMETHODIMP
ObjectStoreAddOrPutRequestOp::SCInputStream::Available(uint64_t* _retval) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ObjectStoreAddOrPutRequestOp::SCInputStream::Read(char* aBuf, uint32_t aCount,
uint32_t* _retval) {
return ReadSegments(NS_CopySegmentToBuffer, aBuf, aCount, _retval);
}
NS_IMETHODIMP
ObjectStoreAddOrPutRequestOp::SCInputStream::ReadSegments(
nsWriteSegmentFun aWriter, void* aClosure, uint32_t aCount,
uint32_t* _retval) {
*_retval = 0;
while (aCount) {
uint32_t count = std::min(uint32_t(mIter.RemainingInSegment()), aCount);
if (!count) {
// We've run out of data in the last segment.
break;
}
uint32_t written;
nsresult rv =
aWriter(this, aClosure, mIter.Data(), *_retval, count, &written);
if (NS_WARN_IF(NS_FAILED(rv))) {
// InputStreams do not propagate errors to caller.
return NS_OK;
}
// Writer should write what we asked it to write.
MOZ_ASSERT(written == count);
*_retval += count;
aCount -= count;
mData.Advance(mIter, count);
}
return NS_OK;
}
NS_IMETHODIMP
ObjectStoreAddOrPutRequestOp::SCInputStream::IsNonBlocking(bool* _retval) {
*_retval = false;
return NS_OK;
}
ObjectStoreGetRequestOp::ObjectStoreGetRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams,
bool aGetAll)
: NormalTransactionOp(aTransaction),
mObjectStoreId(aGetAll
? aParams.get_ObjectStoreGetAllParams().objectStoreId()
: aParams.get_ObjectStoreGetParams().objectStoreId()),
mDatabase(aTransaction->GetDatabase()),
mOptionalKeyRange(
aGetAll ? aParams.get_ObjectStoreGetAllParams().optionalKeyRange()
: OptionalKeyRange(
aParams.get_ObjectStoreGetParams().keyRange())),
mBackgroundParent(aTransaction->GetBackgroundParent()),
mPreprocessInfoCount(0),
mLimit(aGetAll ? aParams.get_ObjectStoreGetAllParams().limit() : 1),
mGetAll(aGetAll) {
MOZ_ASSERT(aParams.type() == RequestParams::TObjectStoreGetParams ||
aParams.type() == RequestParams::TObjectStoreGetAllParams);
MOZ_ASSERT(mObjectStoreId);
MOZ_ASSERT(mDatabase);
MOZ_ASSERT_IF(!aGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
MOZ_ASSERT(mBackgroundParent);
}
template <typename T>
void MoveData(StructuredCloneReadInfo& aInfo, T& aResult);
template <>
void MoveData<SerializedStructuredCloneReadInfo>(
StructuredCloneReadInfo& aInfo,
SerializedStructuredCloneReadInfo& aResult) {
aResult.data().data = std::move(aInfo.mData);
aResult.hasPreprocessInfo() = aInfo.mHasPreprocessInfo;
}
template <>
void MoveData<WasmModulePreprocessInfo>(StructuredCloneReadInfo& aInfo,
WasmModulePreprocessInfo& aResult) {}
template <bool aForPreprocess, typename T>
nsresult ObjectStoreGetRequestOp::ConvertResponse(
StructuredCloneReadInfo& aInfo, T& aResult) {
MoveData(aInfo, aResult);
FallibleTArray<SerializedStructuredCloneFile> serializedFiles;
nsresult rv =
SerializeStructuredCloneFiles(mBackgroundParent, mDatabase, aInfo.mFiles,
aForPreprocess, serializedFiles);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(aResult.files().IsEmpty());
aResult.files().SwapElements(serializedFiles);
return NS_OK;
}
nsresult ObjectStoreGetRequestOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT_IF(!mGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
MOZ_ASSERT_IF(!mGetAll, mLimit == 1);
AUTO_PROFILER_LABEL("ObjectStoreGetRequestOp::DoDatabaseWork", DOM);
const bool hasKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
nsAutoCString keyRangeClause;
if (hasKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
NS_LITERAL_CSTRING("key"), keyRangeClause);
}
nsCString limitClause;
if (mLimit) {
limitClause.AssignLiteral(" LIMIT ");
limitClause.AppendInt(mLimit);
}
nsCString query = NS_LITERAL_CSTRING(
"SELECT file_ids, data "
"FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause + NS_LITERAL_CSTRING(" ORDER BY key ASC") +
limitClause;
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasKeyRange) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
StructuredCloneReadInfo* cloneInfo = mResponse.AppendElement(fallible);
if (NS_WARN_IF(!cloneInfo)) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = GetStructuredCloneReadInfoFromStatement(
stmt, 1, 0, mDatabase->GetFileManager(), cloneInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (cloneInfo->mHasPreprocessInfo) {
mPreprocessInfoCount++;
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT_IF(!mGetAll, mResponse.Length() <= 1);
return NS_OK;
}
bool ObjectStoreGetRequestOp::HasPreprocessInfo() {
return mPreprocessInfoCount > 0;
}
nsresult ObjectStoreGetRequestOp::GetPreprocessParams(
PreprocessParams& aParams) {
AssertIsOnOwningThread();
MOZ_ASSERT(!mResponse.IsEmpty());
if (mGetAll) {
aParams = ObjectStoreGetAllPreprocessParams();
FallibleTArray<WasmModulePreprocessInfo> falliblePreprocessInfos;
if (NS_WARN_IF(!falliblePreprocessInfos.SetLength(mPreprocessInfoCount,
fallible))) {
return NS_ERROR_OUT_OF_MEMORY;
}
uint32_t fallibleIndex = 0;
for (uint32_t count = mResponse.Length(), index = 0; index < count;
index++) {
StructuredCloneReadInfo& info = mResponse[index];
if (info.mHasPreprocessInfo) {
nsresult rv = ConvertResponse<true>(
info, falliblePreprocessInfos[fallibleIndex++]);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
}
nsTArray<WasmModulePreprocessInfo>& preprocessInfos =
aParams.get_ObjectStoreGetAllPreprocessParams().preprocessInfos();
falliblePreprocessInfos.SwapElements(preprocessInfos);
return NS_OK;
}
aParams = ObjectStoreGetPreprocessParams();
WasmModulePreprocessInfo& preprocessInfo =
aParams.get_ObjectStoreGetPreprocessParams().preprocessInfo();
nsresult rv = ConvertResponse<true>(mResponse[0], preprocessInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void ObjectStoreGetRequestOp::GetResponse(RequestResponse& aResponse,
size_t* aResponseSize) {
MOZ_ASSERT_IF(mLimit, mResponse.Length() <= mLimit);
if (mGetAll) {
aResponse = ObjectStoreGetAllResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
FallibleTArray<SerializedStructuredCloneReadInfo> fallibleCloneInfos;
if (NS_WARN_IF(
!fallibleCloneInfos.SetLength(mResponse.Length(), fallible))) {
aResponse = NS_ERROR_OUT_OF_MEMORY;
return;
}
for (uint32_t count = mResponse.Length(), index = 0; index < count;
index++) {
*aResponseSize += mResponse[index].Size();
nsresult rv =
ConvertResponse<false>(mResponse[index], fallibleCloneInfos[index]);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResponse = rv;
return;
}
}
nsTArray<SerializedStructuredCloneReadInfo>& cloneInfos =
aResponse.get_ObjectStoreGetAllResponse().cloneInfos();
fallibleCloneInfos.SwapElements(cloneInfos);
}
return;
}
aResponse = ObjectStoreGetResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
SerializedStructuredCloneReadInfo& serializedInfo =
aResponse.get_ObjectStoreGetResponse().cloneInfo();
*aResponseSize += mResponse[0].Size();
nsresult rv = ConvertResponse<false>(mResponse[0], serializedInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResponse = rv;
}
}
}
ObjectStoreGetKeyRequestOp::ObjectStoreGetKeyRequestOp(
TransactionBase* aTransaction, const RequestParams& aParams, bool aGetAll)
: NormalTransactionOp(aTransaction),
mObjectStoreId(
aGetAll ? aParams.get_ObjectStoreGetAllKeysParams().objectStoreId()
: aParams.get_ObjectStoreGetKeyParams().objectStoreId()),
mOptionalKeyRange(
aGetAll ? aParams.get_ObjectStoreGetAllKeysParams().optionalKeyRange()
: OptionalKeyRange(
aParams.get_ObjectStoreGetKeyParams().keyRange())),
mLimit(aGetAll ? aParams.get_ObjectStoreGetAllKeysParams().limit() : 1),
mGetAll(aGetAll) {
MOZ_ASSERT(aParams.type() == RequestParams::TObjectStoreGetKeyParams ||
aParams.type() == RequestParams::TObjectStoreGetAllKeysParams);
MOZ_ASSERT(mObjectStoreId);
MOZ_ASSERT_IF(!aGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
}
nsresult ObjectStoreGetKeyRequestOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("ObjectStoreGetKeyRequestOp::DoDatabaseWork", DOM);
const bool hasKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
nsAutoCString keyRangeClause;
if (hasKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
NS_LITERAL_CSTRING("key"), keyRangeClause);
}
nsAutoCString limitClause;
if (mLimit) {
limitClause.AssignLiteral(" LIMIT ");
limitClause.AppendInt(mLimit);
}
nsCString query = NS_LITERAL_CSTRING(
"SELECT key "
"FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause + NS_LITERAL_CSTRING(" ORDER BY key ASC") +
limitClause;
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasKeyRange) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
Key* key = mResponse.AppendElement(fallible);
if (NS_WARN_IF(!key)) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = key->SetFromStatement(stmt, 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT_IF(!mGetAll, mResponse.Length() <= 1);
return NS_OK;
}
void ObjectStoreGetKeyRequestOp::GetResponse(RequestResponse& aResponse,
size_t* aResponseSize) {
MOZ_ASSERT_IF(mLimit, mResponse.Length() <= mLimit);
if (mGetAll) {
aResponse = ObjectStoreGetAllKeysResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
nsTArray<Key>& response =
aResponse.get_ObjectStoreGetAllKeysResponse().keys();
mResponse.SwapElements(response);
for (uint32_t i = 0; i < mResponse.Length(); ++i) {
*aResponseSize += mResponse[i].GetBuffer().Length();
}
}
return;
}
aResponse = ObjectStoreGetKeyResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
*aResponseSize = mResponse[0].GetBuffer().Length();
aResponse.get_ObjectStoreGetKeyResponse().key() = std::move(mResponse[0]);
}
}
ObjectStoreDeleteRequestOp::ObjectStoreDeleteRequestOp(
TransactionBase* aTransaction, const ObjectStoreDeleteParams& aParams)
: NormalTransactionOp(aTransaction),
mParams(aParams),
mObjectStoreMayHaveIndexes(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
RefPtr<FullObjectStoreMetadata> metadata =
aTransaction->GetMetadataForObjectStoreId(mParams.objectStoreId());
MOZ_ASSERT(metadata);
mObjectStoreMayHaveIndexes = metadata->HasLiveIndexes();
}
nsresult ObjectStoreDeleteRequestOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("ObjectStoreDeleteRequestOp::DoDatabaseWork", DOM);
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool objectStoreHasIndexes;
rv =
ObjectStoreHasIndexes(this, aConnection, mParams.objectStoreId(),
mObjectStoreMayHaveIndexes, &objectStoreHasIndexes);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (objectStoreHasIndexes) {
rv = DeleteObjectStoreDataTableRowsWithIndexes(
aConnection, mParams.objectStoreId(), mParams.keyRange());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
NS_NAMED_LITERAL_CSTRING(objectStoreIdString, "object_store_id");
nsAutoCString keyRangeClause;
GetBindingClauseForKeyRange(mParams.keyRange(), NS_LITERAL_CSTRING("key"),
keyRangeClause);
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_data "
"WHERE object_store_id = :") +
objectStoreIdString + keyRangeClause + NS_LITERAL_CSTRING(";"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(objectStoreIdString, mParams.objectStoreId());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = BindKeyRangeToStatement(mParams.keyRange(), stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
ObjectStoreClearRequestOp::ObjectStoreClearRequestOp(
TransactionBase* aTransaction, const ObjectStoreClearParams& aParams)
: NormalTransactionOp(aTransaction),
mParams(aParams),
mObjectStoreMayHaveIndexes(false) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
RefPtr<FullObjectStoreMetadata> metadata =
aTransaction->GetMetadataForObjectStoreId(mParams.objectStoreId());
MOZ_ASSERT(metadata);
mObjectStoreMayHaveIndexes = metadata->HasLiveIndexes();
}
nsresult ObjectStoreClearRequestOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("ObjectStoreClearRequestOp::DoDatabaseWork", DOM);
DatabaseConnection::AutoSavepoint autoSave;
nsresult rv = autoSave.Start(Transaction());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool objectStoreHasIndexes;
rv =
ObjectStoreHasIndexes(this, aConnection, mParams.objectStoreId(),
mObjectStoreMayHaveIndexes, &objectStoreHasIndexes);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (objectStoreHasIndexes) {
rv = DeleteObjectStoreDataTableRowsWithIndexes(
aConnection, mParams.objectStoreId(), void_t());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
DatabaseConnection::CachedStatement stmt;
rv = aConnection->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_data "
"WHERE object_store_id = :object_store_id;"),
&stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("object_store_id"),
mParams.objectStoreId());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = autoSave.Commit();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult ObjectStoreCountRequestOp::DoDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("ObjectStoreCountRequestOp::DoDatabaseWork", DOM);
const bool hasKeyRange = mParams.optionalKeyRange().type() ==
OptionalKeyRange::TSerializedKeyRange;
nsAutoCString keyRangeClause;
if (hasKeyRange) {
GetBindingClauseForKeyRange(
mParams.optionalKeyRange().get_SerializedKeyRange(),
NS_LITERAL_CSTRING("key"), keyRangeClause);
}
nsCString query = NS_LITERAL_CSTRING(
"SELECT count(*) "
"FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause;
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mParams.objectStoreId());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasKeyRange) {
rv = BindKeyRangeToStatement(
mParams.optionalKeyRange().get_SerializedKeyRange(), stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!hasResult)) {
MOZ_ASSERT(false, "This should never be possible!");
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
int64_t count = stmt->AsInt64(0);
if (NS_WARN_IF(count < 0)) {
MOZ_ASSERT(false, "This should never be possible!");
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mResponse.count() = count;
return NS_OK;
}
// static
already_AddRefed<FullIndexMetadata> IndexRequestOpBase::IndexMetadataForParams(
TransactionBase* aTransaction, const RequestParams& aParams) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aTransaction);
MOZ_ASSERT(aParams.type() == RequestParams::TIndexGetParams ||
aParams.type() == RequestParams::TIndexGetKeyParams ||
aParams.type() == RequestParams::TIndexGetAllParams ||
aParams.type() == RequestParams::TIndexGetAllKeysParams ||
aParams.type() == RequestParams::TIndexCountParams);
uint64_t objectStoreId;
uint64_t indexId;
switch (aParams.type()) {
case RequestParams::TIndexGetParams: {
const IndexGetParams& params = aParams.get_IndexGetParams();
objectStoreId = params.objectStoreId();
indexId = params.indexId();
break;
}
case RequestParams::TIndexGetKeyParams: {
const IndexGetKeyParams& params = aParams.get_IndexGetKeyParams();
objectStoreId = params.objectStoreId();
indexId = params.indexId();
break;
}
case RequestParams::TIndexGetAllParams: {
const IndexGetAllParams& params = aParams.get_IndexGetAllParams();
objectStoreId = params.objectStoreId();
indexId = params.indexId();
break;
}
case RequestParams::TIndexGetAllKeysParams: {
const IndexGetAllKeysParams& params = aParams.get_IndexGetAllKeysParams();
objectStoreId = params.objectStoreId();
indexId = params.indexId();
break;
}
case RequestParams::TIndexCountParams: {
const IndexCountParams& params = aParams.get_IndexCountParams();
objectStoreId = params.objectStoreId();
indexId = params.indexId();
break;
}
default:
MOZ_CRASH("Should never get here!");
}
const RefPtr<FullObjectStoreMetadata> objectStoreMetadata =
aTransaction->GetMetadataForObjectStoreId(objectStoreId);
MOZ_ASSERT(objectStoreMetadata);
RefPtr<FullIndexMetadata> indexMetadata =
aTransaction->GetMetadataForIndexId(objectStoreMetadata, indexId);
MOZ_ASSERT(indexMetadata);
return indexMetadata.forget();
}
IndexGetRequestOp::IndexGetRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams, bool aGetAll)
: IndexRequestOpBase(aTransaction, aParams),
mDatabase(aTransaction->GetDatabase()),
mOptionalKeyRange(
aGetAll ? aParams.get_IndexGetAllParams().optionalKeyRange()
: OptionalKeyRange(aParams.get_IndexGetParams().keyRange())),
mBackgroundParent(aTransaction->GetBackgroundParent()),
mLimit(aGetAll ? aParams.get_IndexGetAllParams().limit() : 1),
mGetAll(aGetAll) {
MOZ_ASSERT(aParams.type() == RequestParams::TIndexGetParams ||
aParams.type() == RequestParams::TIndexGetAllParams);
MOZ_ASSERT(mDatabase);
MOZ_ASSERT_IF(!aGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
MOZ_ASSERT(mBackgroundParent);
}
nsresult IndexGetRequestOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT_IF(!mGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
MOZ_ASSERT_IF(!mGetAll, mLimit == 1);
AUTO_PROFILER_LABEL("IndexGetRequestOp::DoDatabaseWork", DOM);
const bool hasKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
nsCString indexTable;
if (mMetadata->mCommonMetadata.unique()) {
indexTable.AssignLiteral("unique_index_data ");
} else {
indexTable.AssignLiteral("index_data ");
}
nsAutoCString keyRangeClause;
if (hasKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
NS_LITERAL_CSTRING("value"), keyRangeClause);
}
nsCString limitClause;
if (mLimit) {
limitClause.AssignLiteral(" LIMIT ");
limitClause.AppendInt(mLimit);
}
nsCString query = NS_LITERAL_CSTRING(
"SELECT file_ids, data "
"FROM object_data "
"INNER JOIN ") +
indexTable +
NS_LITERAL_CSTRING(
"AS index_table "
"ON object_data.object_store_id = "
"index_table.object_store_id "
"AND object_data.key = "
"index_table.object_data_key "
"WHERE index_id = :index_id") +
keyRangeClause + limitClause;
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
mMetadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasKeyRange) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
StructuredCloneReadInfo* cloneInfo = mResponse.AppendElement(fallible);
if (NS_WARN_IF(!cloneInfo)) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = GetStructuredCloneReadInfoFromStatement(
stmt, 1, 0, mDatabase->GetFileManager(), cloneInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (cloneInfo->mHasPreprocessInfo) {
IDB_WARNING("Preprocessing for indexes not yet implemented!");
return NS_ERROR_NOT_IMPLEMENTED;
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT_IF(!mGetAll, mResponse.Length() <= 1);
return NS_OK;
}
void IndexGetRequestOp::GetResponse(RequestResponse& aResponse,
size_t* aResponseSize) {
MOZ_ASSERT_IF(!mGetAll, mResponse.Length() <= 1);
if (mGetAll) {
aResponse = IndexGetAllResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
FallibleTArray<SerializedStructuredCloneReadInfo> fallibleCloneInfos;
if (NS_WARN_IF(
!fallibleCloneInfos.SetLength(mResponse.Length(), fallible))) {
aResponse = NS_ERROR_OUT_OF_MEMORY;
return;
}
for (uint32_t count = mResponse.Length(), index = 0; index < count;
index++) {
StructuredCloneReadInfo& info = mResponse[index];
*aResponseSize += info.Size();
SerializedStructuredCloneReadInfo& serializedInfo =
fallibleCloneInfos[index];
serializedInfo.data().data = std::move(info.mData);
FallibleTArray<SerializedStructuredCloneFile> serializedFiles;
nsresult rv = SerializeStructuredCloneFiles(
mBackgroundParent, mDatabase, info.mFiles,
/* aForPreprocess */ false, serializedFiles);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResponse = rv;
return;
}
MOZ_ASSERT(serializedInfo.files().IsEmpty());
serializedInfo.files().SwapElements(serializedFiles);
}
nsTArray<SerializedStructuredCloneReadInfo>& cloneInfos =
aResponse.get_IndexGetAllResponse().cloneInfos();
fallibleCloneInfos.SwapElements(cloneInfos);
}
return;
}
aResponse = IndexGetResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
StructuredCloneReadInfo& info = mResponse[0];
*aResponseSize += info.Size();
SerializedStructuredCloneReadInfo& serializedInfo =
aResponse.get_IndexGetResponse().cloneInfo();
serializedInfo.data().data = std::move(info.mData);
FallibleTArray<SerializedStructuredCloneFile> serializedFiles;
nsresult rv = SerializeStructuredCloneFiles(
mBackgroundParent, mDatabase, info.mFiles,
/* aForPreprocess */ false, serializedFiles);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResponse = rv;
return;
}
MOZ_ASSERT(serializedInfo.files().IsEmpty());
serializedInfo.files().SwapElements(serializedFiles);
}
}
IndexGetKeyRequestOp::IndexGetKeyRequestOp(TransactionBase* aTransaction,
const RequestParams& aParams,
bool aGetAll)
: IndexRequestOpBase(aTransaction, aParams),
mOptionalKeyRange(
aGetAll
? aParams.get_IndexGetAllKeysParams().optionalKeyRange()
: OptionalKeyRange(aParams.get_IndexGetKeyParams().keyRange())),
mLimit(aGetAll ? aParams.get_IndexGetAllKeysParams().limit() : 1),
mGetAll(aGetAll) {
MOZ_ASSERT(aParams.type() == RequestParams::TIndexGetKeyParams ||
aParams.type() == RequestParams::TIndexGetAllKeysParams);
MOZ_ASSERT_IF(!aGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
}
nsresult IndexGetKeyRequestOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT_IF(!mGetAll, mOptionalKeyRange.type() ==
OptionalKeyRange::TSerializedKeyRange);
MOZ_ASSERT_IF(!mGetAll, mLimit == 1);
AUTO_PROFILER_LABEL("IndexGetKeyRequestOp::DoDatabaseWork", DOM);
const bool hasKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
nsCString indexTable;
if (mMetadata->mCommonMetadata.unique()) {
indexTable.AssignLiteral("unique_index_data ");
} else {
indexTable.AssignLiteral("index_data ");
}
nsAutoCString keyRangeClause;
if (hasKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
NS_LITERAL_CSTRING("value"), keyRangeClause);
}
nsCString limitClause;
if (mLimit) {
limitClause.AssignLiteral(" LIMIT ");
limitClause.AppendInt(mLimit);
}
nsCString query = NS_LITERAL_CSTRING(
"SELECT object_data_key "
"FROM ") +
indexTable +
NS_LITERAL_CSTRING("WHERE index_id = :index_id") +
keyRangeClause + limitClause;
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
mMetadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasKeyRange) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
Key* key = mResponse.AppendElement(fallible);
if (NS_WARN_IF(!key)) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = key->SetFromStatement(stmt, 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT_IF(!mGetAll, mResponse.Length() <= 1);
return NS_OK;
}
void IndexGetKeyRequestOp::GetResponse(RequestResponse& aResponse,
size_t* aResponseSize) {
MOZ_ASSERT_IF(!mGetAll, mResponse.Length() <= 1);
if (mGetAll) {
aResponse = IndexGetAllKeysResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
mResponse.SwapElements(aResponse.get_IndexGetAllKeysResponse().keys());
for (uint32_t i = 0; i < mResponse.Length(); ++i) {
*aResponseSize += mResponse[i].GetBuffer().Length();
}
}
return;
}
aResponse = IndexGetKeyResponse();
*aResponseSize = 0;
if (!mResponse.IsEmpty()) {
*aResponseSize = mResponse[0].GetBuffer().Length();
aResponse.get_IndexGetKeyResponse().key() = std::move(mResponse[0]);
}
}
nsresult IndexCountRequestOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
AUTO_PROFILER_LABEL("IndexCountRequestOp::DoDatabaseWork", DOM);
const bool hasKeyRange = mParams.optionalKeyRange().type() ==
OptionalKeyRange::TSerializedKeyRange;
nsCString indexTable;
if (mMetadata->mCommonMetadata.unique()) {
indexTable.AssignLiteral("unique_index_data ");
} else {
indexTable.AssignLiteral("index_data ");
}
nsAutoCString keyRangeClause;
if (hasKeyRange) {
GetBindingClauseForKeyRange(
mParams.optionalKeyRange().get_SerializedKeyRange(),
NS_LITERAL_CSTRING("value"), keyRangeClause);
}
nsCString query = NS_LITERAL_CSTRING(
"SELECT count(*) "
"FROM ") +
indexTable +
NS_LITERAL_CSTRING("WHERE index_id = :index_id") +
keyRangeClause;
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
mMetadata->mCommonMetadata.id());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (hasKeyRange) {
rv = BindKeyRangeToStatement(
mParams.optionalKeyRange().get_SerializedKeyRange(), stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!hasResult)) {
MOZ_ASSERT(false, "This should never be possible!");
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
int64_t count = stmt->AsInt64(0);
if (NS_WARN_IF(count < 0)) {
MOZ_ASSERT(false, "This should never be possible!");
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mResponse.count() = count;
return NS_OK;
}
bool Cursor::CursorOpBase::SendFailureResult(nsresult aResultCode) {
AssertIsOnOwningThread();
MOZ_ASSERT(NS_FAILED(aResultCode));
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mCurrentlyRunningOp == this);
MOZ_ASSERT(!mResponseSent);
if (!IsActorDestroyed()) {
mResponse = ClampResultCode(aResultCode);
// This is an expected race when the transaction is invalidated after
// data is retrieved from database. We clear the retrieved files to prevent
// the assertion failure in SendResponseInternal when mResponse.type() is
// CursorResponse::Tnsresult.
if (Transaction()->IsInvalidated() && !mFiles.IsEmpty()) {
mFiles.Clear();
}
mCursor->SendResponseInternal(mResponse, mFiles);
}
#ifdef DEBUG
mResponseSent = true;
#endif
return false;
}
void Cursor::CursorOpBase::Cleanup() {
AssertIsOnOwningThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT_IF(!IsActorDestroyed(), mResponseSent);
mCursor = nullptr;
#ifdef DEBUG
// A bit hacky but the CursorOp request is not generated in response to a
// child request like most other database operations. Do this to make our
// assertions happy.
NoteActorDestroyed();
#endif
TransactionDatabaseOperationBase::Cleanup();
}
nsresult Cursor::CursorOpBase::PopulateResponseFromStatement(
DatabaseConnection::CachedStatement& aStmt, bool aInitializeResponse) {
Transaction()->AssertIsOnConnectionThread();
MOZ_ASSERT(mResponse.type() == CursorResponse::T__None);
MOZ_ASSERT_IF(mFiles.IsEmpty(), aInitializeResponse);
nsresult rv = mCursor->mKey.SetFromStatement(aStmt, 0);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
switch (mCursor->mType) {
case OpenCursorParams::TObjectStoreOpenCursorParams: {
StructuredCloneReadInfo cloneInfo(
JS::StructuredCloneScope::DifferentProcess);
rv = GetStructuredCloneReadInfoFromStatement(
aStmt, 2, 1, mCursor->mFileManager, &cloneInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (cloneInfo.mHasPreprocessInfo) {
IDB_WARNING("Preprocessing for cursors not yet implemented!");
return NS_ERROR_NOT_IMPLEMENTED;
}
if (aInitializeResponse) {
mResponse = nsTArray<ObjectStoreCursorResponse>();
} else {
MOZ_ASSERT(mResponse.type() ==
CursorResponse::TArrayOfObjectStoreCursorResponse);
}
auto& responses = mResponse.get_ArrayOfObjectStoreCursorResponse();
auto& response = *responses.AppendElement();
response.cloneInfo().data().data = std::move(cloneInfo.mData);
response.key() = mCursor->mKey;
mFiles.AppendElement(std::move(cloneInfo.mFiles));
break;
}
case OpenCursorParams::TObjectStoreOpenKeyCursorParams: {
MOZ_ASSERT(aInitializeResponse);
mResponse = ObjectStoreKeyCursorResponse(mCursor->mKey);
break;
}
case OpenCursorParams::TIndexOpenCursorParams: {
rv = mCursor->mSortKey.SetFromStatement(aStmt, 1);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mCursor->mObjectKey.SetFromStatement(aStmt, 2);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
StructuredCloneReadInfo cloneInfo(
JS::StructuredCloneScope::DifferentProcess);
rv = GetStructuredCloneReadInfoFromStatement(
aStmt, 4, 3, mCursor->mFileManager, &cloneInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (cloneInfo.mHasPreprocessInfo) {
IDB_WARNING("Preprocessing for cursors not yet implemented!");
return NS_ERROR_NOT_IMPLEMENTED;
}
MOZ_ASSERT(aInitializeResponse);
mResponse = IndexCursorResponse();
auto& response = mResponse.get_IndexCursorResponse();
response.cloneInfo().data().data = std::move(cloneInfo.mData);
response.key() = mCursor->mKey;
response.sortKey() = mCursor->mSortKey;
response.objectKey() = mCursor->mObjectKey;
mFiles.AppendElement(std::move(cloneInfo.mFiles));
break;
}
case OpenCursorParams::TIndexOpenKeyCursorParams: {
rv = mCursor->mSortKey.SetFromStatement(aStmt, 1);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mCursor->mObjectKey.SetFromStatement(aStmt, 2);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(aInitializeResponse);
mResponse = IndexKeyCursorResponse(mCursor->mKey, mCursor->mSortKey,
mCursor->mObjectKey);
break;
}
default:
MOZ_CRASH("Should never get here!");
}
return NS_OK;
}
void Cursor::OpenOp::GetRangeKeyInfo(bool aLowerBound, Key* aKey, bool* aOpen) {
AssertIsOnConnectionThread();
MOZ_ASSERT(aKey);
MOZ_ASSERT(aKey->IsUnset());
MOZ_ASSERT(aOpen);
if (mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange) {
const SerializedKeyRange& range =
mOptionalKeyRange.get_SerializedKeyRange();
if (range.isOnly()) {
*aKey = range.lower();
*aOpen = false;
if (mCursor->IsLocaleAware()) {
range.lower().ToLocaleBasedKey(*aKey, mCursor->mLocale);
}
} else {
*aKey = aLowerBound ? range.lower() : range.upper();
*aOpen = aLowerBound ? range.lowerOpen() : range.upperOpen();
if (mCursor->IsLocaleAware()) {
if (aLowerBound) {
range.lower().ToLocaleBasedKey(*aKey, mCursor->mLocale);
} else {
range.upper().ToLocaleBasedKey(*aKey, mCursor->mLocale);
}
}
}
} else {
*aOpen = false;
}
}
nsresult Cursor::OpenOp::DoObjectStoreDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mType == OpenCursorParams::TObjectStoreOpenCursorParams);
MOZ_ASSERT(mCursor->mObjectStoreId);
MOZ_ASSERT(mCursor->mFileManager);
AUTO_PROFILER_LABEL("Cursor::OpenOp::DoObjectStoreDatabaseWork", DOM);
const bool usingKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
NS_NAMED_LITERAL_CSTRING(keyString, "key");
NS_NAMED_LITERAL_CSTRING(id, "id");
NS_NAMED_LITERAL_CSTRING(openLimit, " LIMIT ");
nsCString queryStart = NS_LITERAL_CSTRING("SELECT ") + keyString +
NS_LITERAL_CSTRING(
", file_ids, data "
"FROM object_data "
"WHERE object_store_id = :") +
id;
nsAutoCString keyRangeClause;
if (usingKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
keyString, keyRangeClause);
}
nsAutoCString directionClause = NS_LITERAL_CSTRING(" ORDER BY ") + keyString;
switch (mCursor->mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE:
directionClause.AppendLiteral(" ASC");
break;
case IDBCursor::PREV:
case IDBCursor::PREV_UNIQUE:
directionClause.AppendLiteral(" DESC");
break;
default:
MOZ_CRASH("Should never get here!");
}
// Note: Changing the number or order of SELECT columns in the query will
// require changes to CursorOpBase::PopulateResponseFromStatement.
nsCString firstQuery = queryStart + keyRangeClause + directionClause +
openLimit + NS_LITERAL_CSTRING("1");
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(firstQuery, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(id, mCursor->mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (usingKeyRange) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!hasResult) {
mResponse = void_t();
return NS_OK;
}
rv = PopulateResponseFromStatement(stmt, true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now we need to make the query to get the next match.
keyRangeClause.Truncate();
nsAutoCString continueToKeyRangeClause;
NS_NAMED_LITERAL_CSTRING(currentKey, "current_key");
NS_NAMED_LITERAL_CSTRING(rangeKey, "range_key");
switch (mCursor->mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE: {
Key upper;
bool open;
GetRangeKeyInfo(false, &upper, &open);
AppendConditionClause(keyString, currentKey, false, false,
keyRangeClause);
AppendConditionClause(keyString, currentKey, false, true,
continueToKeyRangeClause);
if (usingKeyRange && !upper.IsUnset()) {
AppendConditionClause(keyString, rangeKey, true, !open, keyRangeClause);
AppendConditionClause(keyString, rangeKey, true, !open,
continueToKeyRangeClause);
mCursor->mRangeKey = upper;
}
break;
}
case IDBCursor::PREV:
case IDBCursor::PREV_UNIQUE: {
Key lower;
bool open;
GetRangeKeyInfo(true, &lower, &open);
AppendConditionClause(keyString, currentKey, true, false, keyRangeClause);
AppendConditionClause(keyString, currentKey, true, true,
continueToKeyRangeClause);
if (usingKeyRange && !lower.IsUnset()) {
AppendConditionClause(keyString, rangeKey, false, !open,
keyRangeClause);
AppendConditionClause(keyString, rangeKey, false, !open,
continueToKeyRangeClause);
mCursor->mRangeKey = lower;
}
break;
}
default:
MOZ_CRASH("Should never get here!");
}
mCursor->mContinueQuery =
queryStart + keyRangeClause + directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + continueToKeyRangeClause + directionClause + openLimit;
return NS_OK;
}
nsresult Cursor::OpenOp::DoObjectStoreKeyDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mType ==
OpenCursorParams::TObjectStoreOpenKeyCursorParams);
MOZ_ASSERT(mCursor->mObjectStoreId);
AUTO_PROFILER_LABEL("Cursor::OpenOp::DoObjectStoreKeyDatabaseWork", DOM);
const bool usingKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
NS_NAMED_LITERAL_CSTRING(keyString, "key");
NS_NAMED_LITERAL_CSTRING(id, "id");
NS_NAMED_LITERAL_CSTRING(openLimit, " LIMIT ");
nsCString queryStart = NS_LITERAL_CSTRING("SELECT ") + keyString +
NS_LITERAL_CSTRING(
" FROM object_data "
"WHERE object_store_id = :") +
id;
nsAutoCString keyRangeClause;
if (usingKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
keyString, keyRangeClause);
}
nsAutoCString directionClause = NS_LITERAL_CSTRING(" ORDER BY ") + keyString;
switch (mCursor->mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE:
directionClause.AppendLiteral(" ASC");
break;
case IDBCursor::PREV:
case IDBCursor::PREV_UNIQUE:
directionClause.AppendLiteral(" DESC");
break;
default:
MOZ_CRASH("Should never get here!");
}
// Note: Changing the number or order of SELECT columns in the query will
// require changes to CursorOpBase::PopulateResponseFromStatement.
nsCString firstQuery = queryStart + keyRangeClause + directionClause +
openLimit + NS_LITERAL_CSTRING("1");
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(firstQuery, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(id, mCursor->mObjectStoreId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (usingKeyRange) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!hasResult) {
mResponse = void_t();
return NS_OK;
}
rv = PopulateResponseFromStatement(stmt, true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now we need to make the query to get the next match.
keyRangeClause.Truncate();
nsAutoCString continueToKeyRangeClause;
NS_NAMED_LITERAL_CSTRING(currentKey, "current_key");
NS_NAMED_LITERAL_CSTRING(rangeKey, "range_key");
switch (mCursor->mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE: {
Key upper;
bool open;
GetRangeKeyInfo(false, &upper, &open);
AppendConditionClause(keyString, currentKey, false, false,
keyRangeClause);
AppendConditionClause(keyString, currentKey, false, true,
continueToKeyRangeClause);
if (usingKeyRange && !upper.IsUnset()) {
AppendConditionClause(keyString, rangeKey, true, !open, keyRangeClause);
AppendConditionClause(keyString, rangeKey, true, !open,
continueToKeyRangeClause);
mCursor->mRangeKey = upper;
}
break;
}
case IDBCursor::PREV:
case IDBCursor::PREV_UNIQUE: {
Key lower;
bool open;
GetRangeKeyInfo(true, &lower, &open);
AppendConditionClause(keyString, currentKey, true, false, keyRangeClause);
AppendConditionClause(keyString, currentKey, true, true,
continueToKeyRangeClause);
if (usingKeyRange && !lower.IsUnset()) {
AppendConditionClause(keyString, rangeKey, false, !open,
keyRangeClause);
AppendConditionClause(keyString, rangeKey, false, !open,
continueToKeyRangeClause);
mCursor->mRangeKey = lower;
}
break;
}
default:
MOZ_CRASH("Should never get here!");
}
mCursor->mContinueQuery =
queryStart + keyRangeClause + directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + continueToKeyRangeClause + directionClause + openLimit;
return NS_OK;
}
nsresult Cursor::OpenOp::DoIndexDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mType == OpenCursorParams::TIndexOpenCursorParams);
MOZ_ASSERT(mCursor->mObjectStoreId);
MOZ_ASSERT(mCursor->mIndexId);
AUTO_PROFILER_LABEL("Cursor::OpenOp::DoIndexDatabaseWork", DOM);
const bool usingKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
nsCString indexTable = mCursor->mUniqueIndex
? NS_LITERAL_CSTRING("unique_index_data")
: NS_LITERAL_CSTRING("index_data");
NS_NAMED_LITERAL_CSTRING(sortColumn, "sort_column");
NS_NAMED_LITERAL_CSTRING(id, "id");
NS_NAMED_LITERAL_CSTRING(openLimit, " LIMIT ");
nsAutoCString sortColumnAlias;
if (mCursor->IsLocaleAware()) {
sortColumnAlias =
"SELECT index_table.value, "
"index_table.value_locale as sort_column, ";
} else {
sortColumnAlias =
"SELECT index_table.value as sort_column, "
"index_table.value_locale, ";
}
nsAutoCString queryStart = sortColumnAlias +
NS_LITERAL_CSTRING(
"index_table.object_data_key, "
"object_data.file_ids, "
"object_data.data "
"FROM ") +
indexTable +
NS_LITERAL_CSTRING(
" AS index_table "
"JOIN object_data "
"ON index_table.object_store_id = "
"object_data.object_store_id "
"AND index_table.object_data_key = "
"object_data.key "
"WHERE index_table.index_id = :") +
id;
nsAutoCString keyRangeClause;
if (usingKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
sortColumn, keyRangeClause);
}
nsAutoCString directionClause = NS_LITERAL_CSTRING(" ORDER BY ") + sortColumn;
switch (mCursor->mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE:
directionClause.AppendLiteral(" ASC, index_table.object_data_key ASC");
break;
case IDBCursor::PREV:
directionClause.AppendLiteral(" DESC, index_table.object_data_key DESC");
break;
case IDBCursor::PREV_UNIQUE:
directionClause.AppendLiteral(" DESC, index_table.object_data_key ASC");
break;
default:
MOZ_CRASH("Should never get here!");
}
// Note: Changing the number or order of SELECT columns in the query will
// require changes to CursorOpBase::PopulateResponseFromStatement.
nsCString firstQuery = queryStart + keyRangeClause + directionClause +
openLimit + NS_LITERAL_CSTRING("1");
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(firstQuery, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(id, mCursor->mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (usingKeyRange) {
if (mCursor->IsLocaleAware()) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt, mCursor->mLocale);
} else {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!hasResult) {
mResponse = void_t();
return NS_OK;
}
rv = PopulateResponseFromStatement(stmt, true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now we need to make the query to get the next match.
NS_NAMED_LITERAL_CSTRING(rangeKey, "range_key");
switch (mCursor->mDirection) {
case IDBCursor::NEXT: {
Key upper;
bool open;
GetRangeKeyInfo(false, &upper, &open);
if (usingKeyRange && !upper.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, true, !open, queryStart);
mCursor->mRangeKey = upper;
}
mCursor->mContinueQuery =
queryStart +
NS_LITERAL_CSTRING(
" AND sort_column >= :current_key "
"AND ( sort_column > :current_key OR "
"index_table.object_data_key > :object_key ) ") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column >= :current_key") +
directionClause + openLimit;
mCursor->mContinuePrimaryKeyQuery =
queryStart +
NS_LITERAL_CSTRING(
" AND ("
"(sort_column == :current_key AND "
"index_table.object_data_key >= :object_key) OR "
"sort_column > :current_key"
")") +
directionClause + openLimit;
break;
}
case IDBCursor::NEXT_UNIQUE: {
Key upper;
bool open;
GetRangeKeyInfo(false, &upper, &open);
if (usingKeyRange && !upper.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, true, !open, queryStart);
mCursor->mRangeKey = upper;
}
mCursor->mContinueQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column > :current_key") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column >= :current_key") +
directionClause + openLimit;
break;
}
case IDBCursor::PREV: {
Key lower;
bool open;
GetRangeKeyInfo(true, &lower, &open);
if (usingKeyRange && !lower.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, false, !open, queryStart);
mCursor->mRangeKey = lower;
}
mCursor->mContinueQuery =
queryStart +
NS_LITERAL_CSTRING(
" AND sort_column <= :current_key "
"AND ( sort_column < :current_key OR "
"index_table.object_data_key < :object_key ) ") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column <= :current_key") +
directionClause + openLimit;
mCursor->mContinuePrimaryKeyQuery =
queryStart +
NS_LITERAL_CSTRING(
" AND ("
"(sort_column == :current_key AND "
"index_table.object_data_key <= :object_key) OR "
"sort_column < :current_key"
")") +
directionClause + openLimit;
break;
}
case IDBCursor::PREV_UNIQUE: {
Key lower;
bool open;
GetRangeKeyInfo(true, &lower, &open);
if (usingKeyRange && !lower.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, false, !open, queryStart);
mCursor->mRangeKey = lower;
}
mCursor->mContinueQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column < :current_key") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column <= :current_key") +
directionClause + openLimit;
break;
}
default:
MOZ_CRASH("Should never get here!");
}
return NS_OK;
}
nsresult Cursor::OpenOp::DoIndexKeyDatabaseWork(
DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mType == OpenCursorParams::TIndexOpenKeyCursorParams);
MOZ_ASSERT(mCursor->mObjectStoreId);
MOZ_ASSERT(mCursor->mIndexId);
AUTO_PROFILER_LABEL("Cursor::OpenOp::DoIndexKeyDatabaseWork", DOM);
const bool usingKeyRange =
mOptionalKeyRange.type() == OptionalKeyRange::TSerializedKeyRange;
nsCString table = mCursor->mUniqueIndex
? NS_LITERAL_CSTRING("unique_index_data")
: NS_LITERAL_CSTRING("index_data");
NS_NAMED_LITERAL_CSTRING(sortColumn, "sort_column");
NS_NAMED_LITERAL_CSTRING(id, "id");
NS_NAMED_LITERAL_CSTRING(openLimit, " LIMIT ");
nsAutoCString sortColumnAlias;
if (mCursor->IsLocaleAware()) {
sortColumnAlias =
"SELECT value, "
"value_locale as sort_column, ";
} else {
sortColumnAlias =
"SELECT value as sort_column, "
"value_locale, ";
}
nsAutoCString queryStart = sortColumnAlias +
NS_LITERAL_CSTRING(
"object_data_key "
" FROM ") +
table + NS_LITERAL_CSTRING(" WHERE index_id = :") +
id;
nsAutoCString keyRangeClause;
if (usingKeyRange) {
GetBindingClauseForKeyRange(mOptionalKeyRange.get_SerializedKeyRange(),
sortColumn, keyRangeClause);
}
nsAutoCString directionClause = NS_LITERAL_CSTRING(" ORDER BY ") + sortColumn;
switch (mCursor->mDirection) {
case IDBCursor::NEXT:
case IDBCursor::NEXT_UNIQUE:
directionClause.AppendLiteral(" ASC, object_data_key ASC");
break;
case IDBCursor::PREV:
directionClause.AppendLiteral(" DESC, object_data_key DESC");
break;
case IDBCursor::PREV_UNIQUE:
directionClause.AppendLiteral(" DESC, object_data_key ASC");
break;
default:
MOZ_CRASH("Should never get here!");
}
// Note: Changing the number or order of SELECT columns in the query will
// require changes to CursorOpBase::PopulateResponseFromStatement.
nsCString firstQuery = queryStart + keyRangeClause + directionClause +
openLimit + NS_LITERAL_CSTRING("1");
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(firstQuery, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = stmt->BindInt64ByName(id, mCursor->mIndexId);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (usingKeyRange) {
if (mCursor->IsLocaleAware()) {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt, mCursor->mLocale);
} else {
rv = BindKeyRangeToStatement(mOptionalKeyRange.get_SerializedKeyRange(),
stmt);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!hasResult) {
mResponse = void_t();
return NS_OK;
}
rv = PopulateResponseFromStatement(stmt, true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now we need to make the query to get the next match.
NS_NAMED_LITERAL_CSTRING(rangeKey, "range_key");
switch (mCursor->mDirection) {
case IDBCursor::NEXT: {
Key upper;
bool open;
GetRangeKeyInfo(false, &upper, &open);
if (usingKeyRange && !upper.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, true, !open, queryStart);
mCursor->mRangeKey = upper;
}
mCursor->mContinueQuery = queryStart +
NS_LITERAL_CSTRING(
" AND sort_column >= :current_key "
"AND ( sort_column > :current_key OR "
"object_data_key > :object_key )") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column >= :current_key ") +
directionClause + openLimit;
mCursor->mContinuePrimaryKeyQuery =
queryStart +
NS_LITERAL_CSTRING(
" AND ("
"(sort_column == :current_key AND "
"object_data_key >= :object_key) OR "
"sort_column > :current_key"
")") +
directionClause + openLimit;
break;
}
case IDBCursor::NEXT_UNIQUE: {
Key upper;
bool open;
GetRangeKeyInfo(false, &upper, &open);
if (usingKeyRange && !upper.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, true, !open, queryStart);
mCursor->mRangeKey = upper;
}
mCursor->mContinueQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column > :current_key") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column >= :current_key") +
directionClause + openLimit;
break;
}
case IDBCursor::PREV: {
Key lower;
bool open;
GetRangeKeyInfo(true, &lower, &open);
if (usingKeyRange && !lower.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, false, !open, queryStart);
mCursor->mRangeKey = lower;
}
mCursor->mContinueQuery = queryStart +
NS_LITERAL_CSTRING(
" AND sort_column <= :current_key "
"AND ( sort_column < :current_key OR "
"object_data_key < :object_key )") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column <= :current_key ") +
directionClause + openLimit;
mCursor->mContinuePrimaryKeyQuery =
queryStart +
NS_LITERAL_CSTRING(
" AND ("
"(sort_column == :current_key AND "
"object_data_key <= :object_key) OR "
"sort_column < :current_key"
")") +
directionClause + openLimit;
break;
}
case IDBCursor::PREV_UNIQUE: {
Key lower;
bool open;
GetRangeKeyInfo(true, &lower, &open);
if (usingKeyRange && !lower.IsUnset()) {
AppendConditionClause(sortColumn, rangeKey, false, !open, queryStart);
mCursor->mRangeKey = lower;
}
mCursor->mContinueQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column < :current_key") +
directionClause + openLimit;
mCursor->mContinueToQuery =
queryStart + NS_LITERAL_CSTRING(" AND sort_column <= :current_key") +
directionClause + openLimit;
break;
}
default:
MOZ_CRASH("Should never get here!");
}
return NS_OK;
}
nsresult Cursor::OpenOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mContinueQuery.IsEmpty());
MOZ_ASSERT(mCursor->mContinueToQuery.IsEmpty());
MOZ_ASSERT(mCursor->mContinuePrimaryKeyQuery.IsEmpty());
MOZ_ASSERT(mCursor->mKey.IsUnset());
MOZ_ASSERT(mCursor->mRangeKey.IsUnset());
AUTO_PROFILER_LABEL("Cursor::OpenOp::DoDatabaseWork", DOM);
nsresult rv;
switch (mCursor->mType) {
case OpenCursorParams::TObjectStoreOpenCursorParams:
rv = DoObjectStoreDatabaseWork(aConnection);
break;
case OpenCursorParams::TObjectStoreOpenKeyCursorParams:
rv = DoObjectStoreKeyDatabaseWork(aConnection);
break;
case OpenCursorParams::TIndexOpenCursorParams:
rv = DoIndexDatabaseWork(aConnection);
break;
case OpenCursorParams::TIndexOpenKeyCursorParams:
rv = DoIndexKeyDatabaseWork(aConnection);
break;
default:
MOZ_CRASH("Should never get here!");
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult Cursor::OpenOp::SendSuccessResult() {
AssertIsOnOwningThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mCurrentlyRunningOp == this);
MOZ_ASSERT(mResponse.type() != CursorResponse::T__None);
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mKey.IsUnset());
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mSortKey.IsUnset());
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mRangeKey.IsUnset());
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mObjectKey.IsUnset());
if (IsActorDestroyed()) {
return NS_ERROR_DOM_INDEXEDDB_ABORT_ERR;
}
mCursor->SendResponseInternal(mResponse, mFiles);
#ifdef DEBUG
mResponseSent = true;
#endif
return NS_OK;
}
nsresult Cursor::ContinueOp::DoDatabaseWork(DatabaseConnection* aConnection) {
MOZ_ASSERT(aConnection);
aConnection->AssertIsOnConnectionThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mObjectStoreId);
MOZ_ASSERT(!mCursor->mContinueQuery.IsEmpty());
MOZ_ASSERT(!mCursor->mContinueToQuery.IsEmpty());
MOZ_ASSERT(!mCursor->mKey.IsUnset());
const bool isIndex =
mCursor->mType == OpenCursorParams::TIndexOpenCursorParams ||
mCursor->mType == OpenCursorParams::TIndexOpenKeyCursorParams;
MOZ_ASSERT_IF(isIndex && (mCursor->mDirection == IDBCursor::NEXT ||
mCursor->mDirection == IDBCursor::PREV),
!mCursor->mContinuePrimaryKeyQuery.IsEmpty());
MOZ_ASSERT_IF(isIndex, mCursor->mIndexId);
MOZ_ASSERT_IF(isIndex, !mCursor->mObjectKey.IsUnset());
AUTO_PROFILER_LABEL("Cursor::ContinueOp::DoDatabaseWork", DOM);
// We need to pick a query based on whether or not a key was passed to the
// continue function. If not we'll grab the the next item in the database that
// is greater than (or less than, if we're running a PREV cursor) the current
// key. If a key was passed we'll grab the next item in the database that is
// greater than (or less than, if we're running a PREV cursor) or equal to the
// key that was specified.
// Note: Changing the number or order of SELECT columns in the query will
// require changes to CursorOpBase::PopulateResponseFromStatement.
bool hasContinueKey = false;
bool hasContinuePrimaryKey = false;
uint32_t advanceCount = 1;
Key& currentKey =
mCursor->IsLocaleAware() ? mCursor->mSortKey : mCursor->mKey;
switch (mParams.type()) {
case CursorRequestParams::TContinueParams:
if (!mParams.get_ContinueParams().key().IsUnset()) {
hasContinueKey = true;
currentKey = mParams.get_ContinueParams().key();
}
break;
case CursorRequestParams::TContinuePrimaryKeyParams:
MOZ_ASSERT(!mParams.get_ContinuePrimaryKeyParams().key().IsUnset());
MOZ_ASSERT(
!mParams.get_ContinuePrimaryKeyParams().primaryKey().IsUnset());
MOZ_ASSERT(mCursor->mDirection == IDBCursor::NEXT ||
mCursor->mDirection == IDBCursor::PREV);
hasContinueKey = true;
hasContinuePrimaryKey = true;
currentKey = mParams.get_ContinuePrimaryKeyParams().key();
break;
case CursorRequestParams::TAdvanceParams:
advanceCount = mParams.get_AdvanceParams().count();
break;
default:
MOZ_CRASH("Should never get here!");
}
const nsCString& continueQuery =
hasContinuePrimaryKey ? mCursor->mContinuePrimaryKeyQuery
: hasContinueKey ? mCursor->mContinueToQuery
: mCursor->mContinueQuery;
MOZ_ASSERT(advanceCount > 0);
nsAutoCString countString;
countString.AppendInt(advanceCount);
nsCString query = continueQuery + countString;
NS_NAMED_LITERAL_CSTRING(currentKeyName, "current_key");
NS_NAMED_LITERAL_CSTRING(rangeKeyName, "range_key");
NS_NAMED_LITERAL_CSTRING(objectKeyName, "object_key");
const bool usingRangeKey = !mCursor->mRangeKey.IsUnset();
DatabaseConnection::CachedStatement stmt;
nsresult rv = aConnection->GetCachedStatement(query, &stmt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int64_t id = isIndex ? mCursor->mIndexId : mCursor->mObjectStoreId;
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), id);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Bind current key.
rv = currentKey.BindToStatement(stmt, currentKeyName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Bind range key if it is specified.
if (usingRangeKey) {
rv = mCursor->mRangeKey.BindToStatement(stmt, rangeKeyName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Bind object key if duplicates are allowed and we're not continuing to a
// specific key.
if (isIndex && !hasContinueKey &&
(mCursor->mDirection == IDBCursor::NEXT ||
mCursor->mDirection == IDBCursor::PREV)) {
rv = mCursor->mObjectKey.BindToStatement(stmt, objectKeyName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Bind object key if primaryKey is specified.
if (hasContinuePrimaryKey) {
rv = mParams.get_ContinuePrimaryKeyParams().primaryKey().BindToStatement(
stmt, objectKeyName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
bool hasResult;
for (uint32_t index = 0; index < advanceCount; index++) {
rv = stmt->ExecuteStep(&hasResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!hasResult) {
mCursor->mKey.Unset();
mCursor->mSortKey.Unset();
mCursor->mRangeKey.Unset();
mCursor->mObjectKey.Unset();
mResponse = void_t();
return NS_OK;
}
}
rv = PopulateResponseFromStatement(stmt, true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult Cursor::ContinueOp::SendSuccessResult() {
AssertIsOnOwningThread();
MOZ_ASSERT(mCursor);
MOZ_ASSERT(mCursor->mCurrentlyRunningOp == this);
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mKey.IsUnset());
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mRangeKey.IsUnset());
MOZ_ASSERT_IF(mResponse.type() == CursorResponse::Tvoid_t,
mCursor->mObjectKey.IsUnset());
if (IsActorDestroyed()) {
return NS_ERROR_DOM_INDEXEDDB_ABORT_ERR;
}
mCursor->SendResponseInternal(mResponse, mFiles);
#ifdef DEBUG
mResponseSent = true;
#endif
return NS_OK;
}
Utils::Utils()
#ifdef DEBUG
: mActorDestroyed(false)
#endif
{
AssertIsOnBackgroundThread();
}
Utils::~Utils() { MOZ_ASSERT(mActorDestroyed); }
void Utils::ActorDestroy(ActorDestroyReason aWhy) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
#ifdef DEBUG
mActorDestroyed = true;
#endif
}
mozilla::ipc::IPCResult Utils::RecvDeleteMe() {
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mActorDestroyed);
IProtocol* mgr = Manager();
if (!PBackgroundIndexedDBUtilsParent::Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult Utils::RecvGetFileReferences(
const PersistenceType& aPersistenceType, const nsCString& aOrigin,
const nsString& aDatabaseName, const int64_t& aFileId, int32_t* aRefCnt,
int32_t* aDBRefCnt, int32_t* aSliceRefCnt, bool* aResult) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aRefCnt);
MOZ_ASSERT(aDBRefCnt);
MOZ_ASSERT(aSliceRefCnt);
MOZ_ASSERT(aResult);
MOZ_ASSERT(!mActorDestroyed);
if (NS_WARN_IF(!IndexedDatabaseManager::Get() || !QuotaManager::Get())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(!IndexedDatabaseManager::InTestingMode())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(aPersistenceType != quota::PERSISTENCE_TYPE_PERSISTENT &&
aPersistenceType != quota::PERSISTENCE_TYPE_TEMPORARY &&
aPersistenceType != quota::PERSISTENCE_TYPE_DEFAULT)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(aOrigin.IsEmpty())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(aDatabaseName.IsEmpty())) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
if (NS_WARN_IF(aFileId == 0)) {
ASSERT_UNLESS_FUZZING();
return IPC_FAIL_NO_REASON(this);
}
RefPtr<GetFileReferencesHelper> helper = new GetFileReferencesHelper(
aPersistenceType, aOrigin, aDatabaseName, aFileId);
nsresult rv = helper->DispatchAndReturnFileReferences(aRefCnt, aDBRefCnt,
aSliceRefCnt, aResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
nsresult GetFileReferencesHelper::DispatchAndReturnFileReferences(
int32_t* aMemRefCnt, int32_t* aDBRefCnt, int32_t* aSliceRefCnt,
bool* aResult) {
AssertIsOnBackgroundThread();
MOZ_ASSERT(aMemRefCnt);
MOZ_ASSERT(aDBRefCnt);
MOZ_ASSERT(aSliceRefCnt);
MOZ_ASSERT(aResult);
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsresult rv = quotaManager->IOThread()->Dispatch(this, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mozilla::MutexAutoLock autolock(mMutex);
while (mWaiting) {
mCondVar.Wait();
}
*aMemRefCnt = mMemRefCnt;
*aDBRefCnt = mDBRefCnt;
*aSliceRefCnt = mSliceRefCnt;
*aResult = mResult;
return NS_OK;
}
NS_IMETHODIMP
GetFileReferencesHelper::Run() {
AssertIsOnIOThread();
IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
MOZ_ASSERT(mgr);
RefPtr<FileManager> fileManager =
mgr->GetFileManager(mPersistenceType, mOrigin, mDatabaseName);
if (fileManager) {
RefPtr<FileInfo> fileInfo = fileManager->GetFileInfo(mFileId);
if (fileInfo) {
fileInfo->GetReferences(&mMemRefCnt, &mDBRefCnt, &mSliceRefCnt);
if (mMemRefCnt != -1) {
// We added an extra temp ref, so account for that accordingly.
mMemRefCnt--;
}
mResult = true;
}
}
mozilla::MutexAutoLock lock(mMutex);
MOZ_ASSERT(mWaiting);
mWaiting = false;
mCondVar.Notify();
return NS_OK;
}
NS_IMETHODIMP
FlushPendingFileDeletionsRunnable::Run() {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
if (NS_WARN_IF(!mgr)) {
return NS_ERROR_FAILURE;
}
nsresult rv = mgr->FlushPendingFileDeletions();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
void PermissionRequestHelper::OnPromptComplete(
PermissionValue aPermissionValue) {
MOZ_ASSERT(NS_IsMainThread());
if (!mActorDestroyed) {
Unused << PIndexedDBPermissionRequestParent::Send__delete__(
this, aPermissionValue);
}
}
void PermissionRequestHelper::ActorDestroy(ActorDestroyReason aWhy) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mActorDestroyed);
mActorDestroyed = true;
}
#ifdef DEBUG
NS_IMPL_ISUPPORTS(DEBUGThreadSlower, nsIThreadObserver)
NS_IMETHODIMP
DEBUGThreadSlower::OnDispatchedEvent() { MOZ_CRASH("Should never be called!"); }
NS_IMETHODIMP
DEBUGThreadSlower::OnProcessNextEvent(nsIThreadInternal* /* aThread */,
bool /* aMayWait */) {
return NS_OK;
}
NS_IMETHODIMP
DEBUGThreadSlower::AfterProcessNextEvent(nsIThreadInternal* /* aThread */,
bool /* aEventWasProcessed */) {
MOZ_ASSERT(kDEBUGThreadSleepMS);
MOZ_ALWAYS_TRUE(PR_Sleep(PR_MillisecondsToInterval(kDEBUGThreadSleepMS)) ==
PR_SUCCESS);
return NS_OK;
}
#endif // DEBUG
nsresult FileHelper::Init() {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(mFileManager);
nsCOMPtr<nsIFile> fileDirectory = mFileManager->GetCheckedDirectory();
if (NS_WARN_IF(!fileDirectory)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIFile> journalDirectory = mFileManager->EnsureJournalDirectory();
if (NS_WARN_IF(!journalDirectory)) {
return NS_ERROR_FAILURE;
}
DebugOnly<bool> exists;
MOZ_ASSERT(NS_SUCCEEDED(journalDirectory->Exists(&exists)));
MOZ_ASSERT(exists);
DebugOnly<bool> isDirectory;
MOZ_ASSERT(NS_SUCCEEDED(journalDirectory->IsDirectory(&isDirectory)));
MOZ_ASSERT(isDirectory);
mFileDirectory = std::move(fileDirectory);
mJournalDirectory = std::move(journalDirectory);
return NS_OK;
}
already_AddRefed<nsIFile> FileHelper::GetFile(FileInfo* aFileInfo) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aFileInfo);
MOZ_ASSERT(mFileManager);
MOZ_ASSERT(mFileDirectory);
const int64_t fileId = aFileInfo->Id();
MOZ_ASSERT(fileId > 0);
nsCOMPtr<nsIFile> file = mFileManager->GetFileForId(mFileDirectory, fileId);
return file.forget();
}
already_AddRefed<nsIFile> FileHelper::GetJournalFile(FileInfo* aFileInfo) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aFileInfo);
MOZ_ASSERT(mFileManager);
MOZ_ASSERT(mJournalDirectory);
const int64_t fileId = aFileInfo->Id();
MOZ_ASSERT(fileId > 0);
nsCOMPtr<nsIFile> file =
mFileManager->GetFileForId(mJournalDirectory, fileId);
return file.forget();
}
nsresult FileHelper::CreateFileFromStream(nsIFile* aFile, nsIFile* aJournalFile,
nsIInputStream* aInputStream,
bool aCompress) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aFile);
MOZ_ASSERT(aJournalFile);
MOZ_ASSERT(aInputStream);
MOZ_ASSERT(mFileManager);
MOZ_ASSERT(mFileDirectory);
MOZ_ASSERT(mJournalDirectory);
bool exists;
nsresult rv = aFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// DOM blobs that are being stored in IDB are cached by calling
// IDBDatabase::GetOrCreateFileActorForBlob. So if the same DOM blob is stored
// again under a different key or in a different object store, we just add
// a new reference instead of creating a new copy (all such stored blobs share
// the same id).
// However, it can happen that CreateFileFromStream failed due to quota
// exceeded error and for some reason the orphaned file couldn't be deleted
// immediately. Now, if the operation is being repeated, the DOM blob is
// already cached, so it has the same file id which clashes with the orphaned
// file. We could do some tricks to restore previous copy loop, but it's safer
// to just delete the orphaned file and start from scratch.
// This corner case is partially simulated in test_file_copy_failure.js
if (exists) {
bool isFile;
rv = aFile->IsFile(&isFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isFile)) {
return NS_ERROR_FAILURE;
}
rv = aJournalFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!exists)) {
return NS_ERROR_FAILURE;
}
rv = aJournalFile->IsFile(&isFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!isFile)) {
return NS_ERROR_FAILURE;
}
IDB_WARNING("Deleting orphaned file!");
rv = RemoveFile(aFile, aJournalFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Create a journal file first.
rv = aJournalFile->Create(nsIFile::NORMAL_FILE_TYPE, 0644);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Now try to copy the stream.
RefPtr<FileOutputStream> fileOutputStream =
CreateFileOutputStream(mFileManager->Type(), mFileManager->Group(),
mFileManager->Origin(), aFile);
if (NS_WARN_IF(!fileOutputStream)) {
return NS_ERROR_FAILURE;
}
if (aCompress) {
RefPtr<SnappyCompressOutputStream> snappyOutputStream =
new SnappyCompressOutputStream(fileOutputStream);
UniquePtr<char[]> buffer(new char[snappyOutputStream->BlockSize()]);
rv = SyncCopy(aInputStream, snappyOutputStream, buffer.get(),
snappyOutputStream->BlockSize());
} else {
char buffer[kFileCopyBufferSize];
rv = SyncCopy(aInputStream, fileOutputStream, buffer, kFileCopyBufferSize);
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult FileHelper::RemoveFile(nsIFile* aFile, nsIFile* aJournalFile) {
nsresult rv;
int64_t fileSize;
if (mFileManager->EnforcingQuota()) {
rv = aFile->GetFileSize(&fileSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
rv = aFile->Remove(false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (mFileManager->EnforcingQuota()) {
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
quotaManager->DecreaseUsageForOrigin(mFileManager->Type(),
mFileManager->Group(),
mFileManager->Origin(), fileSize);
}
rv = aJournalFile->Remove(false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
class FileHelper::ReadCallback final : public nsIInputStreamCallback {
public:
NS_DECL_THREADSAFE_ISUPPORTS
ReadCallback()
: mMutex("ReadCallback::mMutex"),
mCondVar(mMutex, "ReadCallback::mCondVar"),
mInputAvailable(false) {}
NS_IMETHOD
OnInputStreamReady(nsIAsyncInputStream* aStream) override {
mozilla::MutexAutoLock autolock(mMutex);
mInputAvailable = true;
mCondVar.Notify();
return NS_OK;
}
nsresult AsyncWait(nsIAsyncInputStream* aStream, uint32_t aBufferSize,
nsIEventTarget* aTarget) {
MOZ_ASSERT(aStream);
mozilla::MutexAutoLock autolock(mMutex);
nsresult rv = aStream->AsyncWait(this, 0, aBufferSize, aTarget);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mInputAvailable = false;
while (!mInputAvailable) {
mCondVar.Wait();
}
return NS_OK;
}
private:
~ReadCallback() = default;
mozilla::Mutex mMutex;
mozilla::CondVar mCondVar;
bool mInputAvailable;
};
NS_IMPL_ADDREF(FileHelper::ReadCallback);
NS_IMPL_RELEASE(FileHelper::ReadCallback);
NS_INTERFACE_MAP_BEGIN(FileHelper::ReadCallback)
NS_INTERFACE_MAP_ENTRY(nsIInputStreamCallback)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIInputStreamCallback)
NS_INTERFACE_MAP_END
nsresult FileHelper::SyncRead(nsIInputStream* aInputStream, char* aBuffer,
uint32_t aBufferSize, uint32_t* aRead) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aInputStream);
// Let's try to read, directly.
nsresult rv = aInputStream->Read(aBuffer, aBufferSize, aRead);
if (NS_SUCCEEDED(rv) || rv != NS_BASE_STREAM_WOULD_BLOCK) {
return rv;
}
// We need to proceed async.
nsCOMPtr<nsIAsyncInputStream> asyncStream = do_QueryInterface(aInputStream);
if (!asyncStream) {
return rv;
}
if (!mReadCallback) {
mReadCallback = new ReadCallback();
}
// We just need any thread with an event loop for receiving the
// OnInputStreamReady callback. Let's use the I/O thread.
nsCOMPtr<nsIEventTarget> target =
do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
MOZ_ASSERT(target);
rv = mReadCallback->AsyncWait(asyncStream, aBufferSize, target);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return SyncRead(aInputStream, aBuffer, aBufferSize, aRead);
}
nsresult FileHelper::SyncCopy(nsIInputStream* aInputStream,
nsIOutputStream* aOutputStream, char* aBuffer,
uint32_t aBufferSize) {
MOZ_ASSERT(!IsOnBackgroundThread());
MOZ_ASSERT(aInputStream);
MOZ_ASSERT(aOutputStream);
AUTO_PROFILER_LABEL("FileHelper::SyncCopy", DOM);
nsresult rv;
do {
uint32_t numRead;
rv = SyncRead(aInputStream, aBuffer, aBufferSize, &numRead);
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
if (!numRead) {
break;
}
uint32_t numWrite;
rv = aOutputStream->Write(aBuffer, numRead, &numWrite);
if (rv == NS_ERROR_FILE_NO_DEVICE_SPACE) {
rv = NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
if (NS_WARN_IF(numWrite != numRead)) {
rv = NS_ERROR_FAILURE;
break;
}
} while (true);
if (NS_SUCCEEDED(rv)) {
rv = aOutputStream->Flush();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
nsresult rv2 = aOutputStream->Close();
if (NS_WARN_IF(NS_FAILED(rv2))) {
return NS_SUCCEEDED(rv) ? rv2 : rv;
}
return rv;
}
} // namespace indexedDB
} // namespace dom
} // namespace mozilla
#undef IDB_MOBILE
#undef IDB_DEBUG_LOG
#undef ASSERT_UNLESS_FUZZING
#undef DISABLE_ASSERTS_FOR_FUZZING
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