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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSYSTEMLOCK_P_H
#define QSYSTEMLOCK_P_H
#ifndef QT_NO_SYSTEMLOCK
#include "qsystemlock.h"
#include "private/qsharedmemory_p.h"
#ifndef Q_OS_WINCE
#include <sys/types.h>
#endif
#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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