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-rw-r--r--qtools/qmutex.cpp95
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diff --git a/qtools/qmutex.cpp b/qtools/qmutex.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the either Technology Preview License Agreement or the
-** Beta Release License Agreement.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://www.qtsoftware.com/contact.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <stdio.h>
-
-#include "qglobal.h"
-
-#include "qmutex.h"
-#include "qmutex_p.h"
-
-QMutex::QMutex() : d(new QMutexPrivate())
-{
-}
-
-QMutex::~QMutex()
-{
- delete d;
-}
-
-void QMutex::lock()
-{
- //printf("%p: QMutex::lock(): enter\n",this);
- bool isLocked;
- isLocked = d->contenders.testAndSet(0, 1);
- if (!isLocked)
- {
- isLocked = d->contenders.fetchAndAdd(1)==0;
- if (!isLocked)
- {
- // didn't get the lock, wait for it
- //printf("%p: QMutex::lock(): wait() %d\n",this,(int)d->contenders);
- d->wait();
-
- // release lock
- d->contenders.fetchAndAdd(-1);
- }
- }
- //printf("%p: QMutex::lock(): leave\n",this);
-}
-
-bool QMutex::tryLock()
-{
- bool isLocked = d->contenders.testAndSet(0, 1);
- return isLocked;
-}
-
-void QMutex::unlock()
-{
- //printf("%p: QMutex::unlock(): enter %d\n",this,(int)d->contenders);
- if (!d->contenders.testAndSet(1, 0))
- {
- //printf("%p: QMutex::unlock(): wakeUp()\n",this);
- d->wakeUp();
- }
- //printf("%p: QMutex::unlock(): leave\n",this);
-}
-