blob: 386d48d99026bc1b171da1be6d6643ff0406fd89 [file] [log] [blame]
/*
* Copyright (C) 2008 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. ``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
* 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/SecurityOriginData.h>
#include <WebCore/StorageArea.h>
#include <WebCore/Timer.h>
#include <wtf/HashMap.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class SecurityOrigin;
class StorageMap;
}
namespace WebKit {
class StorageAreaSync;
class StorageAreaImpl : public WebCore::StorageArea {
public:
static Ref<StorageAreaImpl> create(WebCore::StorageType, const WebCore::SecurityOriginData&, RefPtr<WebCore::StorageSyncManager>&&, unsigned quota);
virtual ~StorageAreaImpl();
unsigned length() override;
String key(unsigned index) override;
String item(const String& key) override;
void setItem(WebCore::Frame* sourceFrame, const String& key, const String& value, bool& quotaException) override;
void removeItem(WebCore::Frame* sourceFrame, const String& key) override;
void clear(WebCore::Frame* sourceFrame) override;
bool contains(const String& key) override;
WebCore::StorageType storageType() const override;
size_t memoryBytesUsedByCache() override;
void incrementAccessCount() override;
void decrementAccessCount() override;
void closeDatabaseIfIdle() override;
const WebCore::SecurityOriginData& securityOrigin() const override { return m_securityOrigin; }
Ref<StorageAreaImpl> copy();
void close();
// Only called from a background thread.
void importItems(const HashMap<String, String>& items);
// Used to clear a StorageArea and close db before backing db file is deleted.
void clearForOriginDeletion();
void sync();
private:
StorageAreaImpl(WebCore::StorageType, const WebCore::SecurityOriginData&, RefPtr<WebCore::StorageSyncManager>&&, unsigned quota);
explicit StorageAreaImpl(const StorageAreaImpl&);
void blockUntilImportComplete() const;
void closeDatabaseTimerFired();
void dispatchStorageEvent(const String& key, const String& oldValue, const String& newValue, WebCore::Frame* sourceFrame);
WebCore::StorageType m_storageType;
WebCore::SecurityOriginData m_securityOrigin;
RefPtr<WebCore::StorageMap> m_storageMap;
RefPtr<StorageAreaSync> m_storageAreaSync;
RefPtr<WebCore::StorageSyncManager> m_storageSyncManager;
#ifndef NDEBUG
bool m_isShutdown;
#endif
unsigned m_accessCount;
WebCore::Timer m_closeDatabaseTimer;
};
} // namespace WebCore