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/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
* Copyright (C) 2011 Google, 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 "ActiveDOMObject.h"
#include "Document.h"
#include <wtf/RefPtr.h>
#include <wtf/ThreadSafeRefCounted.h>
#if PLATFORM(IOS_FAMILY)
#include <wtf/Threading.h>
#endif
namespace WebCore {
class Database;
class DatabaseDetails;
class DatabaseTaskSynchronizer;
class DatabaseThread;
class SecurityOrigin;
class SecurityOriginData;
class DatabaseContext final : public ThreadSafeRefCounted<DatabaseContext>, private ActiveDOMObject {
public:
// ActiveDOMObject.
void ref() const final { ThreadSafeRefCounted::ref(); }
void deref() const final { ThreadSafeRefCounted::deref(); }
virtual ~DatabaseContext();
DatabaseThread* existingDatabaseThread() const { return m_databaseThread.get(); }
DatabaseThread* databaseThread();
void setHasOpenDatabases() { m_hasOpenDatabases = true; }
bool hasOpenDatabases() const { return m_hasOpenDatabases; }
// When the database cleanup is done, the sychronizer will be signalled.
bool stopDatabases(DatabaseTaskSynchronizer*);
bool allowDatabaseAccess() const;
void databaseExceededQuota(const String& name, DatabaseDetails);
Document* document() const { return downcast<Document>(ActiveDOMObject::scriptExecutionContext()); }
const SecurityOriginData& securityOrigin() const;
bool isContextThread() const;
private:
explicit DatabaseContext(Document&);
void stopDatabases() { stopDatabases(nullptr); }
void contextDestroyed() override;
// ActiveDOMObject.
void stop() override;
RefPtr<DatabaseThread> m_databaseThread;
bool m_hasOpenDatabases { false }; // This never changes back to false, even after the database thread is closed.
bool m_hasRequestedTermination { false };
friend class DatabaseManager;
};
} // namespace WebCore
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