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gecko-dev/dom/indexedDB/IDBDatabase.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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 "IDBDatabase.h"
#include "FileInfo.h"
#include "FileManager.h"
#include "IDBEvents.h"
#include "IDBFactory.h"
#include "IDBIndex.h"
#include "IDBMutableFile.h"
#include "IDBObjectStore.h"
#include "IDBRequest.h"
#include "IDBTransaction.h"
#include "IDBFactory.h"
#include "IndexedDatabaseManager.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/EventDispatcher.h"
#include "MainThreadUtils.h"
#include "mozilla/Services.h"
#include "mozilla/storage.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/DOMStringList.h"
#include "mozilla/dom/DOMStringListBinding.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/IDBDatabaseBinding.h"
#include "mozilla/dom/IDBObjectStoreBinding.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBDatabaseFileChild.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBSharedTypes.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "mozilla/dom/ipc/BlobChild.h"
#include "mozilla/dom/ipc/nsIRemoteBlob.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/ipc/FileDescriptor.h"
#include "mozilla/ipc/InputStreamParams.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "nsCOMPtr.h"
#include "nsContentUtils.h"
#include "nsIConsoleService.h"
#include "nsIDocument.h"
#include "nsIObserver.h"
#include "nsIObserverService.h"
#include "nsIScriptError.h"
#include "nsISupportsPrimitives.h"
#include "nsThreadUtils.h"
#include "ProfilerHelpers.h"
#include "ReportInternalError.h"
// Include this last to avoid path problems on Windows.
#include "ActorsChild.h"
namespace mozilla {
namespace dom {
namespace indexedDB {
using namespace mozilla::dom::quota;
using namespace mozilla::ipc;
using namespace mozilla::services;
namespace {
const char kCycleCollectionObserverTopic[] = "cycle-collector-end";
const char kMemoryPressureObserverTopic[] = "memory-pressure";
const char kWindowObserverTopic[] = "inner-window-destroyed";
class CancelableRunnableWrapper MOZ_FINAL
: public nsICancelableRunnable
{
nsCOMPtr<nsIRunnable> mRunnable;
public:
explicit
CancelableRunnableWrapper(nsIRunnable* aRunnable)
: mRunnable(aRunnable)
{
MOZ_ASSERT(aRunnable);
}
NS_DECL_ISUPPORTS
private:
~CancelableRunnableWrapper()
{ }
NS_DECL_NSIRUNNABLE
NS_DECL_NSICANCELABLERUNNABLE
};
// XXX This should either be ported to PBackground or removed someday.
class CreateFileHelper MOZ_FINAL
: public nsRunnable
{
nsRefPtr<IDBDatabase> mDatabase;
nsRefPtr<IDBRequest> mRequest;
nsRefPtr<FileInfo> mFileInfo;
const nsString mName;
const nsString mType;
const nsString mDatabaseName;
const nsCString mOrigin;
const PersistenceType mPersistenceType;
nsresult mResultCode;
public:
static nsresult
CreateAndDispatch(IDBDatabase* aDatabase,
IDBRequest* aRequest,
const nsAString& aName,
const nsAString& aType);
NS_DECL_ISUPPORTS_INHERITED
private:
CreateFileHelper(IDBDatabase* aDatabase,
IDBRequest* aRequest,
const nsAString& aName,
const nsAString& aType,
const nsACString& aOrigin);
~CreateFileHelper()
{
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
}
nsresult
DoDatabaseWork();
void
DoMainThreadWork(nsresult aResultCode);
NS_DECL_NSIRUNNABLE
};
class DatabaseFile MOZ_FINAL
: public PBackgroundIDBDatabaseFileChild
{
IDBDatabase* mDatabase;
public:
explicit DatabaseFile(IDBDatabase* aDatabase)
: mDatabase(aDatabase)
{
MOZ_ASSERT(aDatabase);
aDatabase->AssertIsOnOwningThread();
MOZ_COUNT_CTOR(DatabaseFile);
}
private:
~DatabaseFile()
{
MOZ_ASSERT(!mDatabase);
MOZ_COUNT_DTOR(DatabaseFile);
}
virtual void
ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE
{
MOZ_ASSERT(mDatabase);
mDatabase->AssertIsOnOwningThread();
if (aWhy != Deletion) {
nsRefPtr<IDBDatabase> database = mDatabase;
database->NoteFinishedFileActor(this);
}
#ifdef DEBUG
mDatabase = nullptr;
#endif
}
};
} // anonymous namespace
class IDBDatabase::LogWarningRunnable MOZ_FINAL
: public nsRunnable
{
nsCString mMessageName;
nsString mFilename;
uint32_t mLineNumber;
uint64_t mInnerWindowID;
bool mIsChrome;
public:
LogWarningRunnable(const char* aMessageName,
const nsAString& aFilename,
uint32_t aLineNumber,
bool aIsChrome,
uint64_t aInnerWindowID)
: mMessageName(aMessageName)
, mFilename(aFilename)
, mLineNumber(aLineNumber)
, mInnerWindowID(aInnerWindowID)
, mIsChrome(aIsChrome)
{
MOZ_ASSERT(!NS_IsMainThread());
}
static void
LogWarning(const char* aMessageName,
const nsAString& aFilename,
uint32_t aLineNumber,
bool aIsChrome,
uint64_t aInnerWindowID);
NS_DECL_ISUPPORTS_INHERITED
private:
~LogWarningRunnable()
{ }
NS_DECL_NSIRUNNABLE
};
class IDBDatabase::Observer MOZ_FINAL
: public nsIObserver
{
IDBDatabase* mWeakDatabase;
const uint64_t mWindowId;
public:
Observer(IDBDatabase* aDatabase, uint64_t aWindowId)
: mWeakDatabase(aDatabase)
, mWindowId(aWindowId)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aDatabase);
}
void
Revoke()
{
MOZ_ASSERT(NS_IsMainThread());
mWeakDatabase = nullptr;
}
NS_DECL_ISUPPORTS
private:
~Observer()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mWeakDatabase);
}
NS_DECL_NSIOBSERVER
};
IDBDatabase::IDBDatabase(IDBWrapperCache* aOwnerCache,
IDBFactory* aFactory,
BackgroundDatabaseChild* aActor,
DatabaseSpec* aSpec)
: IDBWrapperCache(aOwnerCache)
, mFactory(aFactory)
, mSpec(aSpec)
, mBackgroundActor(aActor)
, mClosed(false)
, mInvalidated(false)
{
MOZ_ASSERT(aOwnerCache);
MOZ_ASSERT(aFactory);
aFactory->AssertIsOnOwningThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aSpec);
}
IDBDatabase::~IDBDatabase()
{
AssertIsOnOwningThread();
MOZ_ASSERT(!mBackgroundActor);
}
// static
already_AddRefed<IDBDatabase>
IDBDatabase::Create(IDBWrapperCache* aOwnerCache,
IDBFactory* aFactory,
BackgroundDatabaseChild* aActor,
DatabaseSpec* aSpec)
{
MOZ_ASSERT(aOwnerCache);
MOZ_ASSERT(aFactory);
aFactory->AssertIsOnOwningThread();
MOZ_ASSERT(aActor);
MOZ_ASSERT(aSpec);
nsRefPtr<IDBDatabase> db =
new IDBDatabase(aOwnerCache, aFactory, aActor, aSpec);
db->SetScriptOwner(aOwnerCache->GetScriptOwner());
if (NS_IsMainThread()) {
if (nsPIDOMWindow* window = aFactory->GetParentObject()) {
MOZ_ASSERT(window->IsInnerWindow());
uint64_t windowId = window->WindowID();
nsRefPtr<Observer> observer = new Observer(db, windowId);
nsCOMPtr<nsIObserverService> obsSvc = GetObserverService();
MOZ_ASSERT(obsSvc);
// This topic must be successfully registered.
if (NS_WARN_IF(NS_FAILED(
obsSvc->AddObserver(observer, kWindowObserverTopic, false)))) {
observer->Revoke();
return nullptr;
}
// These topics are not crucial.
if (NS_FAILED(obsSvc->AddObserver(observer,
kCycleCollectionObserverTopic,
false)) ||
NS_FAILED(obsSvc->AddObserver(observer,
kMemoryPressureObserverTopic,
false))) {
NS_WARNING("Failed to add additional memory observers!");
}
db->mObserver.swap(observer);
}
}
return db.forget();
}
#ifdef DEBUG
void
IDBDatabase::AssertIsOnOwningThread() const
{
MOZ_ASSERT(mFactory);
mFactory->AssertIsOnOwningThread();
}
#endif // DEBUG
void
IDBDatabase::CloseInternal()
{
AssertIsOnOwningThread();
if (!mClosed) {
mClosed = true;
ExpireFileActors(/* aExpireAll */ true);
if (mObserver) {
mObserver->Revoke();
nsCOMPtr<nsIObserverService> obsSvc = GetObserverService();
if (obsSvc) {
// These might not have been registered.
obsSvc->RemoveObserver(mObserver, kCycleCollectionObserverTopic);
obsSvc->RemoveObserver(mObserver, kMemoryPressureObserverTopic);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(
obsSvc->RemoveObserver(mObserver, kWindowObserverTopic)));
}
mObserver = nullptr;
}
if (mBackgroundActor && !mInvalidated) {
mBackgroundActor->SendClose();
}
}
}
void
IDBDatabase::InvalidateInternal()
{
AssertIsOnOwningThread();
InvalidateMutableFiles();
AbortTransactions(/* aShouldWarn */ true);
CloseInternal();
}
void
IDBDatabase::EnterSetVersionTransaction(uint64_t aNewVersion)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aNewVersion);
MOZ_ASSERT(!RunningVersionChangeTransaction());
MOZ_ASSERT(mSpec);
MOZ_ASSERT(!mPreviousSpec);
mPreviousSpec = new DatabaseSpec(*mSpec);
mSpec->metadata().version() = aNewVersion;
}
void
IDBDatabase::ExitSetVersionTransaction()
{
AssertIsOnOwningThread();
if (mPreviousSpec) {
mPreviousSpec = nullptr;
}
}
void
IDBDatabase::RevertToPreviousState()
{
AssertIsOnOwningThread();
MOZ_ASSERT(RunningVersionChangeTransaction());
MOZ_ASSERT(mPreviousSpec);
// Hold the current spec alive until RefreshTransactionsSpecEnumerator has
// finished!
nsAutoPtr<DatabaseSpec> currentSpec(mSpec.forget());
mSpec = mPreviousSpec.forget();
RefreshSpec(/* aMayDelete */ true);
}
void
IDBDatabase::RefreshSpec(bool aMayDelete)
{
AssertIsOnOwningThread();
class MOZ_STACK_CLASS Helper MOZ_FINAL
{
public:
static PLDHashOperator
RefreshTransactionsSpec(nsPtrHashKey<IDBTransaction>* aTransaction,
void* aClosure)
{
MOZ_ASSERT(aTransaction);
aTransaction->GetKey()->AssertIsOnOwningThread();
MOZ_ASSERT(aClosure);
bool mayDelete = *static_cast<bool*>(aClosure);
nsRefPtr<IDBTransaction> transaction = aTransaction->GetKey();
transaction->RefreshSpec(mayDelete);
return PL_DHASH_NEXT;
}
};
mTransactions.EnumerateEntries(Helper::RefreshTransactionsSpec, &aMayDelete);
}
nsPIDOMWindow*
IDBDatabase::GetParentObject() const
{
return mFactory->GetParentObject();
}
const nsString&
IDBDatabase::Name() const
{
AssertIsOnOwningThread();
MOZ_ASSERT(mSpec);
return mSpec->metadata().name();
}
uint64_t
IDBDatabase::Version() const
{
AssertIsOnOwningThread();
MOZ_ASSERT(mSpec);
return mSpec->metadata().version();
}
already_AddRefed<DOMStringList>
IDBDatabase::ObjectStoreNames() const
{
AssertIsOnOwningThread();
MOZ_ASSERT(mSpec);
const nsTArray<ObjectStoreSpec>& objectStores = mSpec->objectStores();
nsRefPtr<DOMStringList> list = new DOMStringList();
if (!objectStores.IsEmpty()) {
nsTArray<nsString>& listNames = list->StringArray();
listNames.SetCapacity(objectStores.Length());
for (uint32_t index = 0; index < objectStores.Length(); index++) {
listNames.InsertElementSorted(objectStores[index].metadata().name());
}
}
return list.forget();
}
already_AddRefed<nsIDocument>
IDBDatabase::GetOwnerDocument() const
{
if (nsPIDOMWindow* window = GetOwner()) {
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
return doc.forget();
}
return nullptr;
}
already_AddRefed<IDBObjectStore>
IDBDatabase::CreateObjectStore(
const nsAString& aName,
const IDBObjectStoreParameters& aOptionalParameters,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
IDBTransaction* transaction = IDBTransaction::GetCurrent();
if (!transaction ||
transaction->Database() != this ||
transaction->GetMode() != IDBTransaction::VERSION_CHANGE) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
return nullptr;
}
MOZ_ASSERT(transaction->IsOpen());
KeyPath keyPath(0);
if (NS_FAILED(KeyPath::Parse(aOptionalParameters.mKeyPath, &keyPath))) {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return nullptr;
}
nsTArray<ObjectStoreSpec>& objectStores = mSpec->objectStores();
for (uint32_t count = objectStores.Length(), index = 0;
index < count;
index++) {
if (aName == objectStores[index].metadata().name()) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR);
return nullptr;
}
}
if (!keyPath.IsAllowedForObjectStore(aOptionalParameters.mAutoIncrement)) {
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return nullptr;
}
const ObjectStoreSpec* oldSpecElements =
objectStores.IsEmpty() ? nullptr : objectStores.Elements();
ObjectStoreSpec* newSpec = objectStores.AppendElement();
newSpec->metadata() =
ObjectStoreMetadata(transaction->NextObjectStoreId(), nsString(aName),
keyPath, aOptionalParameters.mAutoIncrement);
if (oldSpecElements &&
oldSpecElements != objectStores.Elements()) {
MOZ_ASSERT(objectStores.Length() > 1);
// Array got moved, update the spec pointers for all live objectStores and
// indexes.
RefreshSpec(/* aMayDelete */ false);
}
nsRefPtr<IDBObjectStore> objectStore =
transaction->CreateObjectStore(*newSpec);
MOZ_ASSERT(objectStore);
// Don't do this in the macro because we always need to increment the serial
// number to keep in sync with the parent.
const uint64_t requestSerialNumber = IDBRequest::NextSerialNumber();
IDB_LOG_MARK("IndexedDB %s: Child Transaction[%lld] Request[%llu]: "
"database(%s).transaction(%s).createObjectStore(%s)",
"IndexedDB %s: C T[%lld] R[%llu]: "
"IDBDatabase.createObjectStore()",
IDB_LOG_ID_STRING(),
transaction->LoggingSerialNumber(),
requestSerialNumber,
IDB_LOG_STRINGIFY(this),
IDB_LOG_STRINGIFY(transaction),
IDB_LOG_STRINGIFY(objectStore));
return objectStore.forget();
}
void
IDBDatabase::DeleteObjectStore(const nsAString& aName, ErrorResult& aRv)
{
AssertIsOnOwningThread();
IDBTransaction* transaction = IDBTransaction::GetCurrent();
if (!transaction ||
transaction->Database() != this ||
transaction->GetMode() != IDBTransaction::VERSION_CHANGE) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
return;
}
MOZ_ASSERT(transaction->IsOpen());
nsTArray<ObjectStoreSpec>& specArray = mSpec->objectStores();
int64_t objectStoreId = 0;
for (uint32_t specCount = specArray.Length(), specIndex = 0;
specIndex < specCount;
specIndex++) {
const ObjectStoreMetadata& metadata = specArray[specIndex].metadata();
MOZ_ASSERT(metadata.id());
if (aName == metadata.name()) {
objectStoreId = metadata.id();
// Must do this before altering the metadata array!
transaction->DeleteObjectStore(objectStoreId);
specArray.RemoveElementAt(specIndex);
RefreshSpec(/* aMayDelete */ false);
break;
}
}
if (!objectStoreId) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR);
return;
}
// Don't do this in the macro because we always need to increment the serial
// number to keep in sync with the parent.
const uint64_t requestSerialNumber = IDBRequest::NextSerialNumber();
IDB_LOG_MARK("IndexedDB %s: Child Transaction[%lld] Request[%llu]: "
"database(%s).transaction(%s).deleteObjectStore(\"%s\")",
"IndexedDB %s: C T[%lld] R[%llu]: "
"IDBDatabase.deleteObjectStore()",
IDB_LOG_ID_STRING(),
transaction->LoggingSerialNumber(),
requestSerialNumber,
IDB_LOG_STRINGIFY(this),
IDB_LOG_STRINGIFY(transaction),
NS_ConvertUTF16toUTF8(aName).get());
}
already_AddRefed<IDBTransaction>
IDBDatabase::Transaction(const nsAString& aStoreName,
IDBTransactionMode aMode,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
Sequence<nsString> storeNames;
if (!storeNames.AppendElement(aStoreName)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return nullptr;
}
return Transaction(storeNames, aMode, aRv);
}
already_AddRefed<IDBTransaction>
IDBDatabase::Transaction(const Sequence<nsString>& aStoreNames,
IDBTransactionMode aMode,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
if (QuotaManager::IsShuttingDown()) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
if (mClosed) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
return nullptr;
}
if (RunningVersionChangeTransaction()) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
return nullptr;
}
if (aStoreNames.IsEmpty()) {
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return nullptr;
}
IDBTransaction::Mode mode;
switch (aMode) {
case IDBTransactionMode::Readonly:
mode = IDBTransaction::READ_ONLY;
break;
case IDBTransactionMode::Readwrite:
mode = IDBTransaction::READ_WRITE;
break;
case IDBTransactionMode::Versionchange:
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return nullptr;
default:
MOZ_CRASH("Unknown mode!");
}
const nsTArray<ObjectStoreSpec>& objectStores = mSpec->objectStores();
const uint32_t nameCount = aStoreNames.Length();
nsTArray<nsString> sortedStoreNames;
sortedStoreNames.SetCapacity(nameCount);
// Check to make sure the object store names we collected actually exist.
for (uint32_t nameIndex = 0; nameIndex < nameCount; nameIndex++) {
const nsString& name = aStoreNames[nameIndex];
bool found = false;
for (uint32_t objCount = objectStores.Length(), objIndex = 0;
objIndex < objCount;
objIndex++) {
if (objectStores[objIndex].metadata().name() == name) {
found = true;
break;
}
}
if (!found) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR);
return nullptr;
}
sortedStoreNames.InsertElementSorted(name);
}
// Remove any duplicates.
for (uint32_t nameIndex = nameCount - 1; nameIndex > 0; nameIndex--) {
if (sortedStoreNames[nameIndex] == sortedStoreNames[nameIndex - 1]) {
sortedStoreNames.RemoveElementAt(nameIndex);
}
}
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(this, sortedStoreNames, mode);
if (NS_WARN_IF(!transaction)) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
BackgroundTransactionChild* actor =
new BackgroundTransactionChild(transaction);
IDB_LOG_MARK("IndexedDB %s: Child Transaction[%lld]: "
"database(%s).transaction(%s)",
"IndexedDB %s: C T[%lld]: IDBDatabase.transaction()",
IDB_LOG_ID_STRING(),
transaction->LoggingSerialNumber(),
IDB_LOG_STRINGIFY(this),
IDB_LOG_STRINGIFY(transaction));
MOZ_ALWAYS_TRUE(
mBackgroundActor->SendPBackgroundIDBTransactionConstructor(actor,
sortedStoreNames,
mode));
transaction->SetBackgroundActor(actor);
return transaction.forget();
}
StorageType
IDBDatabase::Storage() const
{
AssertIsOnOwningThread();
MOZ_ASSERT(mSpec);
return PersistenceTypeToStorage(mSpec->metadata().persistenceType());
}
already_AddRefed<IDBRequest>
IDBDatabase::CreateMutableFile(const nsAString& aName,
const Optional<nsAString>& aType,
ErrorResult& aRv)
{
if (!IndexedDatabaseManager::IsMainProcess() || !NS_IsMainThread()) {
IDB_WARNING("Not supported!");
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
if (QuotaManager::IsShuttingDown()) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
if (mClosed) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
return nullptr;
}
nsRefPtr<IDBRequest> request = IDBRequest::Create(this, nullptr);
nsString type;
if (aType.WasPassed()) {
type = aType.Value();
}
mFactory->IncrementParentLoggingRequestSerialNumber();
aRv = CreateFileHelper::CreateAndDispatch(this, request, aName, type);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return request.forget();
}
void
IDBDatabase::RegisterTransaction(IDBTransaction* aTransaction)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aTransaction);
aTransaction->AssertIsOnOwningThread();
MOZ_ASSERT(!mTransactions.Contains(aTransaction));
mTransactions.PutEntry(aTransaction);
}
void
IDBDatabase::UnregisterTransaction(IDBTransaction* aTransaction)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aTransaction);
aTransaction->AssertIsOnOwningThread();
MOZ_ASSERT(mTransactions.Contains(aTransaction));
mTransactions.RemoveEntry(aTransaction);
}
void
IDBDatabase::AbortTransactions(bool aShouldWarn)
{
AssertIsOnOwningThread();
class MOZ_STACK_CLASS Helper MOZ_FINAL
{
public:
static void
AbortTransactions(nsTHashtable<nsPtrHashKey<IDBTransaction>>& aTable,
nsTArray<nsRefPtr<IDBTransaction>>& aAbortedTransactions)
{
const uint32_t count = aTable.Count();
if (!count) {
return;
}
nsAutoTArray<nsRefPtr<IDBTransaction>, 20> transactions;
transactions.SetCapacity(count);
aTable.EnumerateEntries(Collect, &transactions);
MOZ_ASSERT(transactions.Length() == count);
for (uint32_t index = 0; index < count; index++) {
nsRefPtr<IDBTransaction> transaction = Move(transactions[index]);
MOZ_ASSERT(transaction);
transaction->Abort(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
// We only care about warning for write transactions.
if (transaction->GetMode() != IDBTransaction::READ_ONLY) {
aAbortedTransactions.AppendElement(Move(transaction));
}
}
}
private:
static PLDHashOperator
Collect(nsPtrHashKey<IDBTransaction>* aTransaction, void* aClosure)
{
MOZ_ASSERT(aTransaction);
aTransaction->GetKey()->AssertIsOnOwningThread();
MOZ_ASSERT(aClosure);
auto* array = static_cast<nsTArray<nsRefPtr<IDBTransaction>>*>(aClosure);
array->AppendElement(aTransaction->GetKey());
return PL_DHASH_NEXT;
}
};
nsAutoTArray<nsRefPtr<IDBTransaction>, 5> abortedTransactions;
Helper::AbortTransactions(mTransactions, abortedTransactions);
if (aShouldWarn && !abortedTransactions.IsEmpty()) {
static const char kWarningMessage[] = "IndexedDBTransactionAbortNavigation";
for (uint32_t count = abortedTransactions.Length(), index = 0;
index < count;
index++) {
nsRefPtr<IDBTransaction>& transaction = abortedTransactions[index];
MOZ_ASSERT(transaction);
nsString filename;
uint32_t lineNo;
transaction->GetCallerLocation(filename, &lineNo);
LogWarning(kWarningMessage, filename, lineNo);
}
}
}
PBackgroundIDBDatabaseFileChild*
IDBDatabase::GetOrCreateFileActorForBlob(File* aBlob)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aBlob);
MOZ_ASSERT(mBackgroundActor);
// We use the File's nsIWeakReference as the key to the table because
// a) it is unique per blob, b) it is reference-counted so that we can
// guarantee that it stays alive, and c) it doesn't hold the actual File
// alive.
nsCOMPtr<nsIDOMBlob> blob = aBlob;
nsCOMPtr<nsIWeakReference> weakRef = do_GetWeakReference(blob);
MOZ_ASSERT(weakRef);
PBackgroundIDBDatabaseFileChild* actor = nullptr;
if (!mFileActors.Get(weakRef, &actor)) {
FileImpl* blobImpl = aBlob->Impl();
MOZ_ASSERT(blobImpl);
if (mReceivedBlobs.GetEntry(weakRef)) {
// This blob was previously retrieved from the database.
nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryObject(blobImpl);
MOZ_ASSERT(remoteBlob);
BlobChild* blobChild = remoteBlob->GetBlobChild();
MOZ_ASSERT(blobChild);
#ifdef DEBUG
{
PBackgroundChild* backgroundManager = blobChild->GetBackgroundManager();
MOZ_ASSERT(backgroundManager);
PBackgroundChild* thisManager = mBackgroundActor->Manager()->Manager();
MOZ_ASSERT(thisManager);
MOZ_ASSERT(thisManager == backgroundManager);
}
#endif
auto* dbFile = new DatabaseFile(this);
actor =
mBackgroundActor->SendPBackgroundIDBDatabaseFileConstructor(dbFile,
blobChild);
if (NS_WARN_IF(!actor)) {
return nullptr;
}
} else {
// Make sure that the input stream we get here is one that can actually be
// serialized to PBackground.
PBackgroundChild* backgroundManager =
mBackgroundActor->Manager()->Manager();
MOZ_ASSERT(backgroundManager);
auto* blobChild =
static_cast<BlobChild*>(
BackgroundChild::GetOrCreateActorForBlob(backgroundManager, aBlob));
MOZ_ASSERT(blobChild);
auto* dbFile = new DatabaseFile(this);
actor =
mBackgroundActor->SendPBackgroundIDBDatabaseFileConstructor(dbFile,
blobChild);
if (NS_WARN_IF(!actor)) {
return nullptr;
}
}
MOZ_ASSERT(actor);
mFileActors.Put(weakRef, actor);
}
MOZ_ASSERT(actor);
return actor;
}
void
IDBDatabase::NoteFinishedFileActor(PBackgroundIDBDatabaseFileChild* aFileActor)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aFileActor);
class MOZ_STACK_CLASS Helper MOZ_FINAL
{
public:
static PLDHashOperator
Remove(nsISupports* aKey,
PBackgroundIDBDatabaseFileChild*& aValue,
void* aClosure)
{
MOZ_ASSERT(aKey);
MOZ_ASSERT(aValue);
MOZ_ASSERT(aClosure);
if (aValue == static_cast<PBackgroundIDBDatabaseFileChild*>(aClosure)) {
return PL_DHASH_REMOVE;
}
return PL_DHASH_NEXT;
}
};
mFileActors.Enumerate(&Helper::Remove, aFileActor);
}
void
IDBDatabase::NoteReceivedBlob(File* aBlob)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aBlob);
MOZ_ASSERT(mBackgroundActor);
#ifdef DEBUG
{
nsRefPtr<FileImpl> blobImpl = aBlob->Impl();
MOZ_ASSERT(blobImpl);
nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryObject(blobImpl);
MOZ_ASSERT(remoteBlob);
BlobChild* blobChild = remoteBlob->GetBlobChild();
MOZ_ASSERT(blobChild);
PBackgroundChild* backgroundManager = blobChild->GetBackgroundManager();
MOZ_ASSERT(backgroundManager);
PBackgroundChild* thisManager = mBackgroundActor->Manager()->Manager();
MOZ_ASSERT(thisManager);
MOZ_ASSERT(thisManager == backgroundManager);
}
#endif
nsCOMPtr<nsIDOMBlob> blob = aBlob;
nsCOMPtr<nsIWeakReference> weakRef = do_GetWeakReference(blob);
MOZ_ASSERT(weakRef);
// It's ok if this entry already exists in the table.
mReceivedBlobs.PutEntry(weakRef);
}
void
IDBDatabase::DelayedMaybeExpireFileActors()
{
AssertIsOnOwningThread();
if (!mBackgroundActor || !mFileActors.Count()) {
return;
}
nsCOMPtr<nsIRunnable> runnable =
NS_NewRunnableMethodWithArg<bool>(this,
&IDBDatabase::ExpireFileActors,
/* aExpireAll */ false);
MOZ_ASSERT(runnable);
if (!NS_IsMainThread()) {
// Wrap as a nsICancelableRunnable to make workers happy.
nsCOMPtr<nsIRunnable> cancelable = new CancelableRunnableWrapper(runnable);
cancelable.swap(runnable);
}
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_DispatchToCurrentThread(runnable)));
}
nsresult
IDBDatabase::GetQuotaInfo(nsACString& aOrigin,
PersistenceType* aPersistenceType)
{
using mozilla::dom::quota::QuotaManager;
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
if (aPersistenceType) {
*aPersistenceType = mSpec->metadata().persistenceType();
MOZ_ASSERT(*aPersistenceType != PERSISTENCE_TYPE_INVALID);
}
PrincipalInfo* principalInfo = mFactory->GetPrincipalInfo();
MOZ_ASSERT(principalInfo);
switch (principalInfo->type()) {
case PrincipalInfo::TNullPrincipalInfo:
MOZ_CRASH("Is this needed?!");
case PrincipalInfo::TSystemPrincipalInfo:
QuotaManager::GetInfoForChrome(nullptr, &aOrigin, nullptr);
return NS_OK;
case PrincipalInfo::TContentPrincipalInfo: {
nsresult rv;
nsCOMPtr<nsIPrincipal> principal =
PrincipalInfoToPrincipal(*principalInfo, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = QuotaManager::GetInfoFromPrincipal(principal,
nullptr,
&aOrigin,
nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
default:
MOZ_CRASH("Unknown PrincipalInfo type!");
}
MOZ_CRASH("Should never get here!");
}
void
IDBDatabase::ExpireFileActors(bool aExpireAll)
{
AssertIsOnOwningThread();
class MOZ_STACK_CLASS Helper MOZ_FINAL
{
public:
static PLDHashOperator
MaybeExpireFileActors(nsISupports* aKey,
PBackgroundIDBDatabaseFileChild*& aValue,
void* aClosure)
{
MOZ_ASSERT(aKey);
MOZ_ASSERT(aValue);
MOZ_ASSERT(aClosure);
const bool expiringAll = *static_cast<bool*>(aClosure);
bool shouldExpire = expiringAll;
if (!shouldExpire) {
nsCOMPtr<nsIWeakReference> weakRef = do_QueryInterface(aKey);
MOZ_ASSERT(weakRef);
nsCOMPtr<nsISupports> referent = do_QueryReferent(weakRef);
shouldExpire = !referent;
}
if (shouldExpire) {
PBackgroundIDBDatabaseFileChild::Send__delete__(aValue);
if (!expiringAll) {
return PL_DHASH_REMOVE;
}
}
return PL_DHASH_NEXT;
}
static PLDHashOperator
MaybeExpireReceivedBlobs(nsISupportsHashKey* aKey,
void* aClosure)
{
MOZ_ASSERT(aKey);
MOZ_ASSERT(!aClosure);
nsISupports* key = aKey->GetKey();
MOZ_ASSERT(key);
nsCOMPtr<nsIWeakReference> weakRef = do_QueryInterface(key);
MOZ_ASSERT(weakRef);
nsCOMPtr<nsISupports> referent = do_QueryReferent(weakRef);
if (!referent) {
return PL_DHASH_REMOVE;
}
return PL_DHASH_NEXT;
}
};
if (mBackgroundActor && mFileActors.Count()) {
mFileActors.Enumerate(&Helper::MaybeExpireFileActors, &aExpireAll);
if (aExpireAll) {
mFileActors.Clear();
}
} else {
MOZ_ASSERT(!mFileActors.Count());
}
if (mReceivedBlobs.Count()) {
if (aExpireAll) {
mReceivedBlobs.Clear();
} else {
mReceivedBlobs.EnumerateEntries(&Helper::MaybeExpireReceivedBlobs,
nullptr);
}
}
}
void
IDBDatabase::NoteLiveMutableFile(IDBMutableFile* aMutableFile)
{
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aMutableFile);
MOZ_ASSERT(!mLiveMutableFiles.Contains(aMutableFile));
mLiveMutableFiles.AppendElement(aMutableFile);
}
void
IDBDatabase::NoteFinishedMutableFile(IDBMutableFile* aMutableFile)
{
// This should always happen in the main process but occasionally it is called
// after the IndexedDatabaseManager has already shut down.
// MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aMutableFile);
// It's ok if this is called more than once, so don't assert that aMutableFile
// is in the list already.
mLiveMutableFiles.RemoveElement(aMutableFile);
}
void
IDBDatabase::InvalidateMutableFiles()
{
if (!mLiveMutableFiles.IsEmpty()) {
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
for (uint32_t count = mLiveMutableFiles.Length(), index = 0;
index < count;
index++) {
mLiveMutableFiles[index]->Invalidate();
}
mLiveMutableFiles.Clear();
}
}
void
IDBDatabase::Invalidate()
{
AssertIsOnOwningThread();
if (!mInvalidated) {
mInvalidated = true;
InvalidateInternal();
}
}
void
IDBDatabase::LogWarning(const char* aMessageName,
const nsAString& aFilename,
uint32_t aLineNumber)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aMessageName);
if (NS_IsMainThread()) {
LogWarningRunnable::LogWarning(aMessageName,
aFilename,
aLineNumber,
mFactory->IsChrome(),
mFactory->InnerWindowID());
} else {
nsRefPtr<LogWarningRunnable> runnable =
new LogWarningRunnable(aMessageName,
aFilename,
aLineNumber,
mFactory->IsChrome(),
mFactory->InnerWindowID());
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_DispatchToMainThread(runnable)));
}
}
NS_IMPL_ADDREF_INHERITED(IDBDatabase, IDBWrapperCache)
NS_IMPL_RELEASE_INHERITED(IDBDatabase, IDBWrapperCache)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(IDBDatabase)
NS_INTERFACE_MAP_END_INHERITING(IDBWrapperCache)
NS_IMPL_CYCLE_COLLECTION_CLASS(IDBDatabase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(IDBDatabase, IDBWrapperCache)
tmp->AssertIsOnOwningThread();
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFactory)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(IDBDatabase, IDBWrapperCache)
tmp->AssertIsOnOwningThread();
// Don't unlink mFactory!
// We've been unlinked, at the very least we should be able to prevent further
// transactions from starting and unblock any other SetVersion callers.
tmp->CloseInternal();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
void
IDBDatabase::LastRelease()
{
AssertIsOnOwningThread();
CloseInternal();
if (mBackgroundActor) {
mBackgroundActor->SendDeleteMeInternal();
MOZ_ASSERT(!mBackgroundActor, "SendDeleteMeInternal should have cleared!");
}
}
nsresult
IDBDatabase::PostHandleEvent(EventChainPostVisitor& aVisitor)
{
nsresult rv =
IndexedDatabaseManager::CommonPostHandleEvent(this, mFactory, aVisitor);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
JSObject*
IDBDatabase::WrapObject(JSContext* aCx)
{
return IDBDatabaseBinding::Wrap(aCx, this);
}
NS_IMPL_ISUPPORTS(CancelableRunnableWrapper, nsIRunnable, nsICancelableRunnable)
NS_IMETHODIMP
CancelableRunnableWrapper::Run()
{
nsCOMPtr<nsIRunnable> runnable;
mRunnable.swap(runnable);
if (runnable) {
return runnable->Run();
}
return NS_OK;
}
NS_IMETHODIMP
CancelableRunnableWrapper::Cancel()
{
if (mRunnable) {
mRunnable = nullptr;
return NS_OK;
}
return NS_ERROR_UNEXPECTED;
}
CreateFileHelper::CreateFileHelper(IDBDatabase* aDatabase,
IDBRequest* aRequest,
const nsAString& aName,
const nsAString& aType,
const nsACString& aOrigin)
: mDatabase(aDatabase)
, mRequest(aRequest)
, mName(aName)
, mType(aType)
, mDatabaseName(aDatabase->Name())
, mOrigin(aOrigin)
, mPersistenceType(aDatabase->Spec()->metadata().persistenceType())
, mResultCode(NS_OK)
{
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aDatabase);
MOZ_ASSERT(aRequest);
MOZ_ASSERT(mPersistenceType != PERSISTENCE_TYPE_INVALID);
}
// static
nsresult
CreateFileHelper::CreateAndDispatch(IDBDatabase* aDatabase,
IDBRequest* aRequest,
const nsAString& aName,
const nsAString& aType)
{
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aDatabase);
aDatabase->AssertIsOnOwningThread();
MOZ_ASSERT(aDatabase->Factory());
MOZ_ASSERT(aRequest);
MOZ_ASSERT(!QuotaManager::IsShuttingDown());
nsCString origin;
nsresult rv = aDatabase->GetQuotaInfo(origin, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!origin.IsEmpty());
nsRefPtr<CreateFileHelper> helper =
new CreateFileHelper(aDatabase, aRequest, aName, aType, origin);
QuotaManager* quotaManager = QuotaManager::Get();
MOZ_ASSERT(quotaManager);
nsCOMPtr<nsIEventTarget> ioThread = quotaManager->IOThread();
MOZ_ASSERT(ioThread);
if (NS_WARN_IF(NS_FAILED(ioThread->Dispatch(helper, NS_DISPATCH_NORMAL)))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
nsresult
CreateFileHelper::DoDatabaseWork()
{
AssertIsOnIOThread();
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(!mFileInfo);
PROFILER_LABEL("IndexedDB",
"CreateFileHelper::DoDatabaseWork",
js::ProfileEntry::Category::STORAGE);
if (IndexedDatabaseManager::InLowDiskSpaceMode()) {
NS_WARNING("Refusing to create file because disk space is low!");
return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
}
IndexedDatabaseManager* idbManager = IndexedDatabaseManager::Get();
MOZ_ASSERT(idbManager);
nsRefPtr<FileManager> fileManager =
idbManager->GetFileManager(mPersistenceType, mOrigin, mDatabaseName);
MOZ_ASSERT(fileManager);
nsRefPtr<FileInfo> fileInfo = fileManager->GetNewFileInfo();
if (NS_WARN_IF(!fileInfo)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
const int64_t fileId = fileInfo->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;
}
mFileInfo.swap(fileInfo);
return NS_OK;
}
void
CreateFileHelper::DoMainThreadWork(nsresult aResultCode)
{
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
MOZ_ASSERT(NS_IsMainThread());
if (mDatabase->IsInvalidated()) {
IDB_REPORT_INTERNAL_ERR();
aResultCode = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsRefPtr<IDBMutableFile> mutableFile;
if (NS_SUCCEEDED(aResultCode)) {
mutableFile =
IDBMutableFile::Create(mDatabase, mName, mType, mFileInfo.forget());
MOZ_ASSERT(mutableFile);
}
DispatchMutableFileResult(mRequest, aResultCode, mutableFile);
}
NS_IMPL_ISUPPORTS_INHERITED0(CreateFileHelper, nsRunnable)
NS_IMETHODIMP
CreateFileHelper::Run()
{
MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
if (NS_IsMainThread()) {
DoMainThreadWork(mResultCode);
mDatabase = nullptr;
mRequest = nullptr;
mFileInfo = nullptr;
return NS_OK;
}
AssertIsOnIOThread();
MOZ_ASSERT(NS_SUCCEEDED(mResultCode));
nsresult rv = DoDatabaseWork();
if (NS_WARN_IF(NS_FAILED(rv))) {
mResultCode = rv;
}
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_DispatchToMainThread(this)));
return NS_OK;
}
// static
void
IDBDatabase::
LogWarningRunnable::LogWarning(const char* aMessageName,
const nsAString& aFilename,
uint32_t aLineNumber,
bool aIsChrome,
uint64_t aInnerWindowID)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aMessageName);
nsXPIDLString localizedMessage;
if (NS_WARN_IF(NS_FAILED(
nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
aMessageName,
localizedMessage)))) {
return;
}
nsAutoCString category;
if (aIsChrome) {
category.AssignLiteral("chrome ");
} else {
category.AssignLiteral("content ");
}
category.AppendLiteral("javascript");
nsCOMPtr<nsIConsoleService> consoleService =
do_GetService(NS_CONSOLESERVICE_CONTRACTID);
MOZ_ASSERT(consoleService);
nsCOMPtr<nsIScriptError> scriptError =
do_CreateInstance(NS_SCRIPTERROR_CONTRACTID);
MOZ_ASSERT(consoleService);
if (aInnerWindowID) {
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(
scriptError->InitWithWindowID(localizedMessage,
aFilename,
/* aSourceLine */ EmptyString(),
aLineNumber,
/* aColumnNumber */ 0,
nsIScriptError::warningFlag,
category,
aInnerWindowID)));
} else {
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(
scriptError->Init(localizedMessage,
aFilename,
/* aSourceLine */ EmptyString(),
aLineNumber,
/* aColumnNumber */ 0,
nsIScriptError::warningFlag,
category.get())));
}
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(consoleService->LogMessage(scriptError)));
}
NS_IMPL_ISUPPORTS_INHERITED0(IDBDatabase::LogWarningRunnable, nsRunnable)
NS_IMETHODIMP
IDBDatabase::
LogWarningRunnable::Run()
{
MOZ_ASSERT(NS_IsMainThread());
LogWarning(mMessageName.get(),
mFilename,
mLineNumber,
mIsChrome,
mInnerWindowID);
return NS_OK;
}
NS_IMPL_ISUPPORTS(IDBDatabase::Observer, nsIObserver)
NS_IMETHODIMP
IDBDatabase::
Observer::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aTopic);
if (!strcmp(aTopic, kWindowObserverTopic)) {
if (mWeakDatabase) {
nsCOMPtr<nsISupportsPRUint64> supportsInt = do_QueryInterface(aSubject);
MOZ_ASSERT(supportsInt);
uint64_t windowId;
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(supportsInt->GetData(&windowId)));
if (windowId == mWindowId) {
nsRefPtr<IDBDatabase> database = mWeakDatabase;
mWeakDatabase = nullptr;
database->InvalidateInternal();
}
}
return NS_OK;
}
if (!strcmp(aTopic, kCycleCollectionObserverTopic) ||
!strcmp(aTopic, kMemoryPressureObserverTopic)) {
if (mWeakDatabase) {
nsRefPtr<IDBDatabase> database = mWeakDatabase;
database->ExpireFileActors(/* aExpireAll */ false);
}
return NS_OK;
}
NS_WARNING("Unknown observer topic!");
return NS_OK;
}
} // namespace indexedDB
} // namespace dom
} // namespace mozilla
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