| /* |
| * Copyright (C) 2008, 2009, 2010, 2013 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include <WebCore/SQLiteDatabase.h> |
| #include <WebCore/SecurityOriginData.h> |
| #include <wtf/Forward.h> |
| #include <wtf/HashMap.h> |
| #include <wtf/RefPtr.h> |
| #include <wtf/ThreadSafeRefCounted.h> |
| #include <wtf/WorkQueue.h> |
| |
| namespace WebCore { |
| class SecurityOrigin; |
| class StorageMap; |
| class SuddenTerminationDisabler; |
| } |
| |
| namespace WebKit { |
| |
| class LocalStorageDatabaseTracker; |
| |
| class LocalStorageDatabase : public ThreadSafeRefCounted<LocalStorageDatabase> { |
| public: |
| static Ref<LocalStorageDatabase> create(Ref<WorkQueue>&&, Ref<LocalStorageDatabaseTracker>&&, const WebCore::SecurityOriginData&); |
| ~LocalStorageDatabase(); |
| |
| // Will block until the import is complete. |
| void importItems(WebCore::StorageMap&); |
| |
| void setItem(const String& key, const String& value); |
| void removeItem(const String& key); |
| void clear(); |
| |
| // Will block until all pending changes have been written to disk. |
| void close(); |
| |
| private: |
| LocalStorageDatabase(Ref<WorkQueue>&&, Ref<LocalStorageDatabaseTracker>&&, const WebCore::SecurityOriginData&); |
| |
| enum DatabaseOpeningStrategy { |
| CreateIfNonExistent, |
| SkipIfNonExistent |
| }; |
| bool tryToOpenDatabase(DatabaseOpeningStrategy); |
| void openDatabase(DatabaseOpeningStrategy); |
| |
| bool migrateItemTableIfNeeded(); |
| |
| void itemDidChange(const String& key, const String& value); |
| |
| void scheduleDatabaseUpdate(); |
| void updateDatabase(); |
| void updateDatabaseWithChangedItems(const HashMap<String, String>&); |
| |
| bool databaseIsEmpty(); |
| |
| Ref<WorkQueue> m_queue; |
| Ref<LocalStorageDatabaseTracker> m_tracker; |
| WebCore::SecurityOriginData m_securityOrigin; |
| |
| String m_databasePath; |
| WebCore::SQLiteDatabase m_database; |
| bool m_failedToOpenDatabase; |
| bool m_didImportItems; |
| bool m_isClosed; |
| |
| bool m_didScheduleDatabaseUpdate; |
| bool m_shouldClearItems; |
| HashMap<String, String> m_changedItems; |
| |
| std::unique_ptr<WebCore::SuddenTerminationDisabler> m_disableSuddenTerminationWhileWritingToLocalStorage; |
| }; |
| |
| |
| } // namespace WebKit |