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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 test suite 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSYSTEMLOCK_P_H
#define QSYSTEMLOCK_P_H
#ifndef QT_NO_SYSTEMLOCK
#include "qsystemlock.h"
#include "private/qsharedmemory_p.h"
#include <sys/types.h>
#define MAX_LOCKS 64
class QSystemLockPrivate
{
public:
QSystemLockPrivate();
QString makeKeyFileName()
{
return QSharedMemoryPrivate::makePlatformSafeKey(key, QLatin1String("qipc_systemlock_"));
}
void setErrorString(const QString &function);
#ifdef Q_OS_WIN
HANDLE handle();
bool lock(HANDLE, int count);
bool unlock(HANDLE, int count);
#else
key_t handle();
#endif
void cleanHandle();
enum Operation {
Lock,
Unlock
};
bool modifySemaphore(Operation op, QSystemLock::LockMode mode = QSystemLock::ReadOnly);
QString key;
QString fileName;
#ifdef Q_OS_WIN
HANDLE semaphore;
HANDLE semaphoreLock;
#else
int semaphore;
#endif
int lockCount;
QSystemLock::LockMode lockedMode;
QSystemLock::SystemLockError error;
QString errorString;
private:
#ifndef Q_OS_WIN
key_t unix_key;
bool createdFile;
bool createdSemaphore;
#endif
};
#endif // QT_NO_SYSTEMLOCK
#endif // QSYSTEMLOCK_P_H
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