/*
* Copyright (C) 2007, 2008, 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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
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*/
#ifndef TaskSynchronizer_h
#define TaskSynchronizer_h
#include "platform/PlatformExport.h"
#include "wtf/Noncopyable.h"
#include "wtf/Threading.h"
#include "wtf/ThreadingPrimitives.h"
namespace WebCore {
// TaskSynchronizer can be used to wait for task completion.
class PLATFORM_EXPORT TaskSynchronizer {
WTF_MAKE_NONCOPYABLE(TaskSynchronizer);
public:
TaskSynchronizer();
// Called from a thread that waits for the task completion.
void waitForTaskCompletion();
// Called from a thread that executes the task.
void taskCompleted();
#ifndef NDEBUG
bool hasCheckedForTermination() const { return m_hasCheckedForTermination; }
void setHasCheckedForTermination() { m_hasCheckedForTermination = true; }
#endif
private:
bool m_taskCompleted;
Mutex m_synchronousMutex;
ThreadCondition m_synchronousCondition;
#ifndef NDEBUG
bool m_hasCheckedForTermination;
#endif
};
} // namespace WebCore
#endif // TaskSynchronizer_h