1/* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "core/html/parser/HTMLParserThread.h" 33 34#include "platform/Task.h" 35#include "public/platform/Platform.h" 36#include "wtf/PassOwnPtr.h" 37 38namespace blink { 39 40static HTMLParserThread* s_sharedThread = 0; 41 42HTMLParserThread::HTMLParserThread() 43{ 44} 45 46HTMLParserThread::~HTMLParserThread() 47{ 48} 49 50void HTMLParserThread::init() 51{ 52 ASSERT(!s_sharedThread); 53 s_sharedThread = new HTMLParserThread; 54} 55 56void HTMLParserThread::setupHTMLParserThread() 57{ 58 ASSERT(m_thread); 59 m_thread->attachGC(); 60} 61 62void HTMLParserThread::shutdown() 63{ 64 ASSERT(s_sharedThread); 65 // currentThread will always be non-null in production, but can be null in Chromium unit tests. 66 if (blink::Platform::current()->currentThread() && s_sharedThread->isRunning()) { 67 s_sharedThread->postTask(WTF::bind(&HTMLParserThread::cleanupHTMLParserThread, s_sharedThread)); 68 } 69 delete s_sharedThread; 70 s_sharedThread = 0; 71} 72 73void HTMLParserThread::cleanupHTMLParserThread() 74{ 75 m_thread->detachGC(); 76} 77 78HTMLParserThread* HTMLParserThread::shared() 79{ 80 return s_sharedThread; 81} 82 83blink::WebThread& HTMLParserThread::platformThread() 84{ 85 if (!isRunning()) { 86 m_thread = WebThreadSupportingGC::create("HTMLParserThread"); 87 postTask(WTF::bind(&HTMLParserThread::setupHTMLParserThread, this)); 88 } 89 return m_thread->platformThread(); 90} 91 92bool HTMLParserThread::isRunning() 93{ 94 return !!m_thread; 95} 96 97void HTMLParserThread::postTask(const Closure& closure) 98{ 99 platformThread().postTask(new Task(closure)); 100} 101 102} // namespace blink 103