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1 /*
2  * Copyright (C) 2007 Staikos Computing Services Inc.
3  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
4  * Copyright (C) 2008 Apple Inc. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1.  Redistributions of source code must retain the above copyright
11  *     notice, this list of conditions and the following disclaimer.
12  * 2.  Redistributions in binary form must reproduce the above copyright
13  *     notice, this list of conditions and the following disclaimer in the
14  *     documentation and/or other materials provided with the distribution.
15  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16  *     its contributors may be used to endorse or promote products derived
17  *     from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include "config.h"
32 #include "MainThread.h"
33 
34 #include <QtCore/QObject>
35 #include <QtCore/QCoreApplication>
36 #include <QThread>
37 
38 namespace WTF {
39 
40 class MainThreadInvoker : public QObject {
41     Q_OBJECT
42 public:
43     MainThreadInvoker();
44 
45 private Q_SLOTS:
46     void dispatch();
47 };
48 
MainThreadInvoker()49 MainThreadInvoker::MainThreadInvoker()
50 {
51     moveToThread(QCoreApplication::instance()->thread());
52 }
53 
dispatch()54 void MainThreadInvoker::dispatch()
55 {
56     dispatchFunctionsFromMainThread();
57 }
58 
Q_GLOBAL_STATIC(MainThreadInvoker,webkit_main_thread_invoker)59 Q_GLOBAL_STATIC(MainThreadInvoker, webkit_main_thread_invoker)
60 
61 void initializeMainThreadPlatform()
62 {
63 }
64 
scheduleDispatchFunctionsOnMainThread()65 void scheduleDispatchFunctionsOnMainThread()
66 {
67     QMetaObject::invokeMethod(webkit_main_thread_invoker(), "dispatch", Qt::QueuedConnection);
68 }
69 
isMainThread()70 bool isMainThread()
71 {
72     return QThread::currentThread() == QCoreApplication::instance()->thread();
73 }
74 
75 } // namespace WTF
76 
77 #include "MainThreadQt.moc"
78