/****************************************************************************
**
** Copyright (C) 2011 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the 
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
** 
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
****************************************************************************/

#ifndef QATOMIC_BOOTSTRAP_H
#define QATOMIC_BOOTSTRAP_H

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

inline bool QBasicAtomicInt::ref()
{
    return ++_q_value != 0;
}

inline bool QBasicAtomicInt::deref()
{
    return --_q_value != 0;
}

inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
{
    if (_q_value == expectedValue) {
        _q_value = newValue;
        return true;
    }
    return false;
}

inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
{
    return testAndSetOrdered(expectedValue, newValue);
}

inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
{
    return testAndSetOrdered(expectedValue, newValue);
}

inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
{
    int returnValue = _q_value;
    _q_value += valueToAdd;
    return returnValue;
}

template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
{
    if (_q_value == expectedValue) {
        _q_value = newValue;
        return true;
    }
    return false;
}

QT_END_NAMESPACE

QT_END_HEADER

#endif // QATOMIC_BOOTSTRAP_H
