/****************************************************************************+
−
**+
−
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
−
** All rights reserved.+
−
** Contact: Nokia Corporation (qt-info@nokia.com)+
−
**+
−
** This file is part of the QtGui 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 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 QWSLOCK_P_H+
−
#define QWSLOCK_P_H+
−
+
−
//+
−
//  W A R N I N G+
−
//  -------------+
−
//+
−
// This file is not part of the Qt API.  This header file may+
−
// change from version to version without notice, or even be+
−
// removed.+
−
//+
−
// We mean it.+
−
//+
−
+
−
#include <qglobal.h>+
−
+
−
QT_BEGIN_NAMESPACE+
−
+
−
#ifndef QT_NO_QWS_MULTIPROCESS+
−
+
−
class QWSLock+
−
{+
−
public:+
−
    enum LockType { BackingStore, Communication, RegionEvent };+
−
+
−
    QWSLock();+
−
    QWSLock(int lockId);+
−
    ~QWSLock();+
−
+
−
    bool lock(LockType type, int timeout = -1);+
−
    void unlock(LockType type);+
−
    bool wait(LockType type, int timeout = -1);+
−
    bool hasLock(LockType type);+
−
    int id() const { return semId; }+
−
+
−
private:+
−
    int semId;+
−
    int lockCount[2];+
−
};+
−
+
−
+
−
QT_END_NAMESPACE+
−
#endif // QT_NO_QWS_MULTIPROCESS+
−
#endif // QWSLOCK_P_H+
−