xref: /external/webkit/Source/JavaScriptCore/wtf/qt/MainThreadQt.cpp

/*
 * Copyright (C) 2007 Staikos Computing Services Inc.
 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
 * Copyright (C) 2008 Apple 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:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  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.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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"
#include "MainThread.h"

#include <QtCore/QObject>
#include <QtCore/QCoreApplication>
#include <QThread>

namespace WTF {

class MainThreadInvoker : public QObject {
    Q_OBJECT
public:
    MainThreadInvoker();

private Q_SLOTS:
    void dispatch();
};

MainThreadInvoker::MainThreadInvoker()
{
    moveToThread(QCoreApplication::instance()->thread());
}

void MainThreadInvoker::dispatch()
{
    dispatchFunctionsFromMainThread();
}

Q_GLOBAL_STATIC(MainThreadInvoker, webkit_main_thread_invoker)

void initializeMainThreadPlatform()
{
}

void scheduleDispatchFunctionsOnMainThread()
{
    QMetaObject::invokeMethod(webkit_main_thread_invoker(), "dispatch", Qt::QueuedConnection);
}

bool isMainThread()
{
    return QThread::currentThread() == QCoreApplication::instance()->thread();
}

} // namespace WTF

#include "MainThreadQt.moc"