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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 QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** 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 Nokia.
**
** 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#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
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