/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtCore module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QTIMESTAMP_H+
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#define QTIMESTAMP_H+
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+
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#include <QtCore/qglobal.h>+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(Core)+
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+
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class Q_CORE_EXPORT QElapsedTimer+
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{+
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public:+
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    enum ClockType {+
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        SystemTime,+
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        MonotonicClock,+
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        TickCounter,+
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        MachAbsoluteTime+
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    };+
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    static ClockType clockType();+
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    static bool isMonotonic();+
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+
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    void start();+
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    qint64 restart();+
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    void invalidate();+
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    bool isValid() const;+
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+
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    qint64 elapsed() const;+
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    bool hasExpired(qint64 timeout) const;+
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+
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    qint64 msecsSinceReference() const;+
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    qint64 msecsTo(const QElapsedTimer &other) const;+
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    qint64 secsTo(const QElapsedTimer &other) const;+
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+
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    bool operator==(const QElapsedTimer &other) const+
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    { return t1 == other.t1 && t2 == other.t2; }+
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    bool operator!=(const QElapsedTimer &other) const+
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    { return !(*this == other); }+
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+
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    friend bool Q_CORE_EXPORT operator<(const QElapsedTimer &v1, const QElapsedTimer &v2);+
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+
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private:+
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    qint64 t1;+
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    qint64 t2;+
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};+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif // QTIMESTAMP_H+
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