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/****************************************************************************
**
** Definition of QMutex class
**
** Created : 931107
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the tools module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef QMUTEX_H
#define QMUTEX_H
#ifndef QT_H
#include "qglobal.h"
#endif // QT_H
#if defined(TQT_THREAD_SUPPORT)
class QMutexPrivate;
const int Q_MUTEX_NORMAL = 0;
const int Q_MUTEX_RECURSIVE = 1;
class Q_EXPORT QMutex
{
friend class QThread;
friend class QWaitCondition;
friend class QWaitConditionPrivate;
public:
QMutex(bool recursive = FALSE);
virtual ~QMutex();
void lock();
void unlock();
bool locked();
bool tryLock();
private:
QMutexPrivate * d;
#if defined(Q_DISABLE_COPY)
QMutex( const QMutex & );
QMutex &operator=( const QMutex & );
#endif
public:
int level();
};
class Q_EXPORT QMutexLocker
{
public:
QMutexLocker( QMutex * );
~QMutexLocker();
QMutex *mutex() const;
private:
QMutex *mtx;
#if defined(Q_DISABLE_COPY)
QMutexLocker( const QMutexLocker & );
QMutexLocker &operator=( const QMutexLocker & );
#endif
};
inline QMutexLocker::QMutexLocker( QMutex *m )
: mtx( m )
{
if ( mtx ) mtx->lock();
}
inline QMutexLocker::~QMutexLocker()
{
if ( mtx ) mtx->unlock();
}
inline QMutex *QMutexLocker::mutex() const
{
return mtx;
}
#endif
#endif
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