/* * Copyright (C) 2013 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: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT * OWNER 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. */ #include "config.h" #if ENABLE(THREADED_HTML_PARSER) #include "HTMLParserThread.h" namespace WebCore { HTMLParserThread::HTMLParserThread() : m_threadID(0) { } HTMLParserThread::~HTMLParserThread() { ASSERT(m_queue.killed()); } bool HTMLParserThread::start() { MutexLocker lock(m_threadCreationMutex); if (m_threadID) return true; m_threadID = createThread(HTMLParserThread::threadStart, this, "WebCore: HTMLParser"); return m_threadID; } void HTMLParserThread::stop() { m_queue.kill(); waitForThreadCompletion(m_threadID); } HTMLParserThread* HTMLParserThread::shared() { static HTMLParserThread* thread; if (!thread) { thread = HTMLParserThread::create().leakPtr(); thread->start(); } return thread; } void HTMLParserThread::postTask(const Closure& function) { m_queue.append(adoptPtr(new Closure(function))); } void HTMLParserThread::threadStart(void* arg) { HTMLParserThread* thread = static_cast<HTMLParserThread*>(arg); thread->runLoop(); } void HTMLParserThread::runLoop() { { // Wait for HTMLParserThread::start() to complete to have m_threadID // established before starting the main loop. MutexLocker lock(m_threadCreationMutex); } while (OwnPtr<Closure> function = m_queue.waitForMessage()) (*function)(); // stop() will wait to join the thread, so we do not detach here. } } // namespace WebCore #endif // ENABLE(THREADED_HTML_PARSER)