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/****************************************************************************
**
** 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 Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 QSYSTEMREADWRITELOCK_H
#define QSYSTEMREADWRITELOCK_H

#include "qmobilityglobal.h"
#include <QString>

QTM_BEGIN_NAMESPACE

class QSystemReadWriteLockPrivate;
class QM_AUTOTEST_EXPORT QSystemReadWriteLock
{
public:
    enum AccessMode{Create, Open};
    enum SystemReadWriteLockError{
        NoError,
        PermissionDenied,
        KeyError,//TODO:remove this enum
        NotFound,
        LockError,//TODO: remove this enum
        OutOfResources, 
        FailedToInitialize,//TODO: remove this enum
        UnknownError
    };

    explicit QSystemReadWriteLock(const QString &key, AccessMode mode = Open);
    ~QSystemReadWriteLock();

    bool lockForRead();
    bool lockForWrite();
    void unlock();

    SystemReadWriteLockError error() const;
    QString errorString() const;

    QString key() const;

private:
    QSystemReadWriteLockPrivate *d;
};

QTM_END_NAMESPACE

#endif