зеркало из https://github.com/mozilla/gecko-dev.git
254 строки
7.5 KiB
C++
254 строки
7.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "sqlite3.h"
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#include "jsfriendapi.h"
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#include "nsPrintfCString.h"
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#include "nsString.h"
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#include "nsError.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/CondVar.h"
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#include "nsQueryObject.h"
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#include "nsThreadUtils.h"
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#include "nsJSUtils.h"
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#include "Variant.h"
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#include "mozStoragePrivateHelpers.h"
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#include "mozIStorageCompletionCallback.h"
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#include "mozilla/Logging.h"
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extern mozilla::LazyLogModule gStorageLog;
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namespace mozilla {
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namespace storage {
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bool isErrorCode(int aSQLiteResultCode) {
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// Drop off the extended result bits of the result code.
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int rc = aSQLiteResultCode & 0xFF;
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return rc != SQLITE_OK && rc != SQLITE_ROW && rc != SQLITE_DONE;
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}
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nsresult convertResultCode(int aSQLiteResultCode) {
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// Drop off the extended result bits of the result code.
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int rc = aSQLiteResultCode & 0xFF;
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switch (rc) {
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case SQLITE_OK:
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case SQLITE_ROW:
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case SQLITE_DONE:
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return NS_OK;
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case SQLITE_CORRUPT:
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case SQLITE_NOTADB:
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return NS_ERROR_FILE_CORRUPTED;
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case SQLITE_PERM:
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case SQLITE_CANTOPEN:
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return NS_ERROR_FILE_ACCESS_DENIED;
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case SQLITE_BUSY:
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return NS_ERROR_STORAGE_BUSY;
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case SQLITE_LOCKED:
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return NS_ERROR_FILE_IS_LOCKED;
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case SQLITE_READONLY:
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return NS_ERROR_FILE_READ_ONLY;
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case SQLITE_IOERR:
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return NS_ERROR_STORAGE_IOERR;
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case SQLITE_FULL:
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case SQLITE_TOOBIG:
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return NS_ERROR_FILE_NO_DEVICE_SPACE;
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case SQLITE_NOMEM:
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return NS_ERROR_OUT_OF_MEMORY;
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case SQLITE_MISUSE:
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return NS_ERROR_UNEXPECTED;
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case SQLITE_ABORT:
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case SQLITE_INTERRUPT:
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return NS_ERROR_ABORT;
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case SQLITE_CONSTRAINT:
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return NS_ERROR_STORAGE_CONSTRAINT;
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}
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// generic error
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#ifdef DEBUG
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nsAutoCString message;
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message.AppendLiteral("SQLite returned error code ");
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message.AppendInt(rc);
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message.AppendLiteral(" , Storage will convert it to NS_ERROR_FAILURE");
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NS_WARNING_ASSERTION(rc == SQLITE_ERROR, message.get());
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#endif
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return NS_ERROR_FAILURE;
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}
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void checkAndLogStatementPerformance(sqlite3_stmt* aStatement) {
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// Check to see if the query performed sorting operations or not. If it
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// did, it may need to be optimized!
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int count = ::sqlite3_stmt_status(aStatement, SQLITE_STMTSTATUS_SORT, 1);
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if (count <= 0) return;
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const char* sql = ::sqlite3_sql(aStatement);
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// Check to see if this is marked to not warn
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if (::strstr(sql, "/* do not warn (bug ")) return;
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// CREATE INDEX always sorts (sorting is a necessary step in creating
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// an index). So ignore the warning there.
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if (::strstr(sql, "CREATE INDEX") || ::strstr(sql, "CREATE UNIQUE INDEX"))
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return;
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nsAutoCString message("Suboptimal indexes for the SQL statement ");
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#ifdef MOZ_STORAGE_SORTWARNING_SQL_DUMP
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message.Append('`');
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message.Append(sql);
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message.AppendLiteral("` [");
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message.AppendInt(count);
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message.AppendLiteral(" sort operation(s)]");
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#else
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nsPrintfCString address("0x%p", aStatement);
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message.Append(address);
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#endif
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message.AppendLiteral(" (http://mzl.la/1FuID0j).");
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NS_WARNING(message.get());
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}
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nsIVariant* convertJSValToVariant(JSContext* aCtx, const JS::Value& aValue) {
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if (aValue.isInt32()) return new IntegerVariant(aValue.toInt32());
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if (aValue.isDouble()) return new FloatVariant(aValue.toDouble());
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if (aValue.isString()) {
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nsAutoJSString value;
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if (!value.init(aCtx, aValue.toString())) return nullptr;
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return new TextVariant(value);
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}
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if (aValue.isBoolean()) return new IntegerVariant(aValue.isTrue() ? 1 : 0);
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if (aValue.isNull()) return new NullVariant();
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if (aValue.isObject()) {
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JS::Rooted<JSObject*> obj(aCtx, &aValue.toObject());
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// We only support Date instances, all others fail.
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bool valid;
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if (!js::DateIsValid(aCtx, obj, &valid) || !valid) return nullptr;
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double msecd;
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if (!js::DateGetMsecSinceEpoch(aCtx, obj, &msecd)) return nullptr;
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msecd *= 1000.0;
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int64_t msec = msecd;
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return new IntegerVariant(msec);
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}
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return nullptr;
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}
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Variant_base* convertVariantToStorageVariant(nsIVariant* aVariant) {
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RefPtr<Variant_base> variant = do_QueryObject(aVariant);
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if (variant) {
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// JS helpers already convert the JS representation to a Storage Variant,
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// in such a case there's nothing left to do here, so just pass-through.
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return variant;
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}
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if (!aVariant) return new NullVariant();
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uint16_t dataType = aVariant->GetDataType();
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switch (dataType) {
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case nsIDataType::VTYPE_BOOL:
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case nsIDataType::VTYPE_INT8:
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case nsIDataType::VTYPE_INT16:
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case nsIDataType::VTYPE_INT32:
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case nsIDataType::VTYPE_UINT8:
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case nsIDataType::VTYPE_UINT16:
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case nsIDataType::VTYPE_UINT32:
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case nsIDataType::VTYPE_INT64:
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case nsIDataType::VTYPE_UINT64: {
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int64_t v;
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nsresult rv = aVariant->GetAsInt64(&v);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return new IntegerVariant(v);
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}
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case nsIDataType::VTYPE_FLOAT:
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case nsIDataType::VTYPE_DOUBLE: {
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double v;
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nsresult rv = aVariant->GetAsDouble(&v);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return new FloatVariant(v);
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}
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case nsIDataType::VTYPE_CHAR:
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case nsIDataType::VTYPE_CHAR_STR:
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case nsIDataType::VTYPE_STRING_SIZE_IS:
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case nsIDataType::VTYPE_UTF8STRING:
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case nsIDataType::VTYPE_CSTRING: {
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nsCString v;
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nsresult rv = aVariant->GetAsAUTF8String(v);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return new UTF8TextVariant(v);
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}
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case nsIDataType::VTYPE_WCHAR:
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case nsIDataType::VTYPE_WCHAR_STR:
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case nsIDataType::VTYPE_WSTRING_SIZE_IS:
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case nsIDataType::VTYPE_ASTRING: {
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nsString v;
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nsresult rv = aVariant->GetAsAString(v);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return new TextVariant(v);
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}
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case nsIDataType::VTYPE_ARRAY: {
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uint16_t type;
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nsIID iid;
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uint32_t len;
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void* rawArray;
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// Note this copies the array data.
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nsresult rv = aVariant->GetAsArray(&type, &iid, &len, &rawArray);
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NS_ENSURE_SUCCESS(rv, nullptr);
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if (type == nsIDataType::VTYPE_UINT8) {
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std::pair<uint8_t*, int> v(static_cast<uint8_t*>(rawArray), len);
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// Take ownership of the data avoiding a further copy.
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return new AdoptedBlobVariant(v);
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}
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[[fallthrough]];
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}
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case nsIDataType::VTYPE_EMPTY:
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case nsIDataType::VTYPE_EMPTY_ARRAY:
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case nsIDataType::VTYPE_VOID:
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return new NullVariant();
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case nsIDataType::VTYPE_ID:
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case nsIDataType::VTYPE_INTERFACE:
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case nsIDataType::VTYPE_INTERFACE_IS:
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default:
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NS_WARNING("Unsupported variant type");
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return nullptr;
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}
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}
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namespace {
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class CallbackEvent : public Runnable {
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public:
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explicit CallbackEvent(mozIStorageCompletionCallback* aCallback)
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: Runnable("storage::CallbackEvent"), mCallback(aCallback) {}
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NS_IMETHOD Run() override {
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(void)mCallback->Complete(NS_OK, nullptr);
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return NS_OK;
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}
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private:
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nsCOMPtr<mozIStorageCompletionCallback> mCallback;
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};
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} // namespace
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already_AddRefed<nsIRunnable> newCompletionEvent(
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mozIStorageCompletionCallback* aCallback) {
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NS_ASSERTION(aCallback, "Passing a null callback is a no-no!");
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nsCOMPtr<nsIRunnable> event = new CallbackEvent(aCallback);
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return event.forget();
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}
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} // namespace storage
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} // namespace mozilla
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