diff options
Diffstat (limited to 'qtools/qmutex.cpp')
-rw-r--r-- | qtools/qmutex.cpp | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/qtools/qmutex.cpp b/qtools/qmutex.cpp deleted file mode 100644 index 08a13bc..0000000 --- a/qtools/qmutex.cpp +++ /dev/null @@ -1,95 +0,0 @@ -/**************************************************************************** -** -** 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); -} - |