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Diffstat (limited to 'qtinterface/qt4/Qt/qatomic_bootstrap.h')
-rw-r--r-- | qtinterface/qt4/Qt/qatomic_bootstrap.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/qtinterface/qt4/Qt/qatomic_bootstrap.h b/qtinterface/qt4/Qt/qatomic_bootstrap.h new file mode 100644 index 0000000..4e3fc82 --- /dev/null +++ b/qtinterface/qt4/Qt/qatomic_bootstrap.h @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** 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 |