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/*
* 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. 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.
*/
#include "config.h"
#include "CCThread.h"
#include "LayerRendererChromium.h"
#include <wtf/CurrentTime.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/ThreadingPrimitives.h>
namespace WebCore {
using namespace WTF;
CCThread::CCThread()
{
MutexLocker lock(m_threadCreationMutex);
m_threadID = createThread(CCThread::compositorThreadStart, this, "Chromium Compositor");
}
CCThread::~CCThread()
{
m_queue.kill();
// Stop thread.
void* exitCode;
waitForThreadCompletion(m_threadID, &exitCode);
m_threadID = 0;
}
void CCThread::postTask(PassOwnPtr<Task> task)
{
m_queue.append(task);
}
void* CCThread::compositorThreadStart(void* userdata)
{
CCThread* ccThread = static_cast<CCThread*>(userdata);
return ccThread->runLoop();
}
void* CCThread::runLoop()
{
{
// Wait for CCThread::start() to complete to have m_threadID
// established before starting the main loop.
MutexLocker lock(m_threadCreationMutex);
}
while (OwnPtr<Task> task = m_queue.waitForMessage())
task->performTask();
return 0;
}
}
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