/* * 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 "CCThreadImpl.h" #include "WebKit.h" #include "platform/WebKitPlatformSupport.h" #include "platform/WebThread.h" #include "cc/CCCompletionEvent.h" #include <stdint.h> using namespace WebCore; namespace WebKit { // Task that, when runs, places the current thread ID into the provided // pointer and signals a completion event. // // Does not provide a PassOwnPtr<GetThreadIDTask>::create method because // the resulting object is always handed into a WebThread, which does not understand // PassOwnPtrs. class GetThreadIDTask : public WebThread::Task { public: GetThreadIDTask(ThreadIdentifier* result, CCCompletionEvent* completion) : m_completion(completion) , m_result(result) { } virtual ~GetThreadIDTask() { } virtual void run() { *m_result = currentThread(); m_completion->signal(); } private: CCCompletionEvent* m_completion; ThreadIdentifier* m_result; }; // General adapter from a CCThread::Task to a WebThread::Task. class CCThreadTaskAdapter : public WebThread::Task { public: CCThreadTaskAdapter(PassOwnPtr<CCThread::Task> task) : m_task(task) { } virtual ~CCThreadTaskAdapter() { } virtual void run() { m_task->performTask(); } private: OwnPtr<CCThread::Task> m_task; }; PassOwnPtr<CCThread> CCThreadImpl::create(WebThread* thread) { return adoptPtr(new CCThreadImpl(thread)); } CCThreadImpl::~CCThreadImpl() { } void CCThreadImpl::postTask(PassOwnPtr<CCThread::Task> task) { m_thread->postTask(new CCThreadTaskAdapter(task)); } void CCThreadImpl::postDelayedTask(PassOwnPtr<CCThread::Task> task, long long delayMs) { m_thread->postDelayedTask(new CCThreadTaskAdapter(task), delayMs); } ThreadIdentifier CCThreadImpl::threadID() const { return m_threadID; } CCThreadImpl::CCThreadImpl(WebThread* thread) : m_thread(thread) { if (thread == WebKit::Platform::current()->currentThread()) { m_threadID = currentThread(); return; } // Get the threadId for the newly-created thread by running a task // on that thread, blocking on the result. m_threadID = currentThread(); CCCompletionEvent completion; m_thread->postTask(new GetThreadIDTask(&m_threadID, &completion)); completion.wait(); } } // namespace WebKit