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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 COMPUTER, 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 COMPUTER, 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.
*
*/
#ifndef DatabaseContext_h
#define DatabaseContext_h
#include "core/dom/ContextLifecycleObserver.h"
#include "platform/heap/Handle.h"
namespace blink {
class DatabaseContext;
class DatabaseThread;
class ExecutionContext;
class SecurityOrigin;
class DatabaseContext final : public GarbageCollectedFinalized<DatabaseContext>,
public ContextLifecycleObserver {
USING_GARBAGE_COLLECTED_MIXIN(DatabaseContext);
public:
friend class DatabaseManager;
static DatabaseContext* Create(ExecutionContext*);
~DatabaseContext();
virtual void Trace(blink::Visitor*);
// For life-cycle management (inherited from ContextLifecycleObserver):
void ContextDestroyed(ExecutionContext*) override;
DatabaseContext* Backend();
DatabaseThread* GetDatabaseThread();
bool DatabaseThreadAvailable();
void SetHasOpenDatabases() { has_open_databases_ = true; }
// Blocks the caller thread until cleanup tasks are completed.
void StopDatabases();
bool AllowDatabaseAccess() const;
const SecurityOrigin* GetSecurityOrigin() const;
bool IsContextThread() const;
private:
explicit DatabaseContext(ExecutionContext*);
Member<DatabaseThread> database_thread_;
bool has_open_databases_; // This never changes back to false, even after the
// database thread is closed.
bool has_requested_termination_;
};
} // namespace blink
#endif // DatabaseContext_h