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
38 namespace blink {
39
40 static HTMLParserThread* s_sharedThread = 0;
41
HTMLParserThread()42 HTMLParserThread::HTMLParserThread()
43 {
44 }
45
~HTMLParserThread()46 HTMLParserThread::~HTMLParserThread()
47 {
48 }
49
init()50 void HTMLParserThread::init()
51 {
52 ASSERT(!s_sharedThread);
53 s_sharedThread = new HTMLParserThread;
54 }
55
setupHTMLParserThread()56 void HTMLParserThread::setupHTMLParserThread()
57 {
58 ASSERT(m_thread);
59 m_thread->attachGC();
60 }
61
shutdown()62 void 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
cleanupHTMLParserThread()73 void HTMLParserThread::cleanupHTMLParserThread()
74 {
75 m_thread->detachGC();
76 }
77
shared()78 HTMLParserThread* HTMLParserThread::shared()
79 {
80 return s_sharedThread;
81 }
82
platformThread()83 blink::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
isRunning()92 bool HTMLParserThread::isRunning()
93 {
94 return !!m_thread;
95 }
96
postTask(const Closure & closure)97 void HTMLParserThread::postTask(const Closure& closure)
98 {
99 platformThread().postTask(new Task(closure));
100 }
101
102 } // namespace blink
103