/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Copyright (C) 2011 Thiago Macieira ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QATOMIC_BOOTSTRAP_H #define QATOMIC_BOOTSTRAP_H #include QT_BEGIN_NAMESPACE #if 0 // silence syncqt warnings QT_END_NAMESPACE #pragma qt_sync_skip_header_check #pragma qt_sync_stop_processing #endif template struct QAtomicOps: QGenericAtomicOps > { typedef T Type; static bool ref(T &_q_value) Q_DECL_NOTHROW { return ++_q_value != 0; } static bool deref(T &_q_value) Q_DECL_NOTHROW { return --_q_value != 0; } static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue = 0) Q_DECL_NOTHROW { if (currentValue) *currentValue = _q_value; if (_q_value == expectedValue) { _q_value = newValue; return true; } return false; } static T fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW { T tmp = _q_value; _q_value = newValue; return tmp; } template static T fetchAndAddRelaxed(T &_q_value, AdditiveType valueToAdd) Q_DECL_NOTHROW { T returnValue = _q_value; _q_value += valueToAdd; return returnValue; } }; QT_END_NAMESPACE #endif // QATOMIC_BOOTSTRAP_H