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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 
     49 MainThreadInvoker::MainThreadInvoker()
     50 {
     51     moveToThread(QCoreApplication::instance()->thread());
     52 }
     53 
     54 void MainThreadInvoker::dispatch()
     55 {
     56     dispatchFunctionsFromMainThread();
     57 }
     58 
     59 Q_GLOBAL_STATIC(MainThreadInvoker, webkit_main_thread_invoker)
     60 
     61 void initializeMainThreadPlatform()
     62 {
     63 }
     64 
     65 void scheduleDispatchFunctionsOnMainThread()
     66 {
     67     QMetaObject::invokeMethod(webkit_main_thread_invoker(), "dispatch", Qt::QueuedConnection);
     68 }
     69 
     70 bool isMainThread()
     71 {
     72     return QThread::currentThread() == QCoreApplication::instance()->thread();
     73 }
     74 
     75 } // namespace WTF
     76 
     77 #include "MainThreadQt.moc"
     78