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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMUTEX_P_H
#define QMUTEX_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qmutex.cpp, qmutex_unix.cpp, and qmutex_win.cpp. This header
// file may change from version to version without notice, or even be
// removed.
//
// We mean it.
//
#include <QtCore/qglobal.h>
#include <QtCore/qnamespace.h>
#include <QtCore/qmutex.h>
#if defined(Q_OS_SYMBIAN)
# include <e32std.h>
#endif
QT_BEGIN_NAMESPACE
class QMutexPrivate : public QMutexData {
public:
QMutexPrivate(QMutex::RecursionMode mode);
~QMutexPrivate();
bool wait(int timeout = -1);
void wakeUp();
// 1ms = 1000000ns
enum { MaximumSpinTimeThreshold = 1000000 };
volatile qint64 maximumSpinTime;
volatile qint64 averageWaitTime;
Qt::HANDLE owner;
uint count;
#if defined(Q_OS_UNIX) && !defined(Q_OS_LINUX) && !defined(Q_OS_SYMBIAN)
volatile bool wakeup;
pthread_mutex_t mutex;
pthread_cond_t cond;
#elif defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
HANDLE event;
#elif defined(Q_OS_SYMBIAN)
RSemaphore lock;
#endif
};
inline QMutexData::QMutexData(QMutex::RecursionMode mode)
: recursive(mode == QMutex::Recursive)
{}
inline QMutexData::~QMutexData() {}
QT_END_NAMESPACE
#endif // QMUTEX_P_H
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