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Diffstat (limited to 'src/foundation/Qt3DSAtomic.h')
-rw-r--r-- | src/foundation/Qt3DSAtomic.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/foundation/Qt3DSAtomic.h b/src/foundation/Qt3DSAtomic.h new file mode 100644 index 0000000..69c7d3b --- /dev/null +++ b/src/foundation/Qt3DSAtomic.h @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2008-2012 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** 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 General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) 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.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-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DS_FOUNDATION_PSATOMIC_H +#define QT3DS_FOUNDATION_PSATOMIC_H + +#include "foundation/Qt3DS.h" + +namespace qt3ds { +namespace foundation { + /* set *dest equal to val. Return the old value of *dest */ + QT3DS_AUTOTEST_EXPORT QT3DSI32 atomicExchange(volatile QT3DSI32 *dest, QT3DSI32 val); + + /* if *dest == comp, replace with exch. Return original value of *dest */ + QT3DS_AUTOTEST_EXPORT QT3DSI32 atomicCompareExchange(volatile QT3DSI32 *dest, QT3DSI32 exch, QT3DSI32 comp); + + /* if *dest == comp, replace with exch. Return original value of *dest */ + QT3DS_AUTOTEST_EXPORT void *atomicCompareExchangePointer(volatile void **dest, void *exch, + void *comp); + + /* increment the specified location. Return the incremented value */ + QT3DS_AUTOTEST_EXPORT QT3DSI32 atomicIncrement(volatile QT3DSI32 *val); + + /* decrement the specified location. Return the decremented value */ + QT3DS_AUTOTEST_EXPORT QT3DSI32 atomicDecrement(volatile QT3DSI32 *val); + + /* add delta to *val. Return the new value */ + QT3DS_AUTOTEST_EXPORT QT3DSI32 atomicAdd(volatile QT3DSI32 *val, QT3DSI32 delta); + + /* compute the maximum of dest and val. Return the new value */ + QT3DS_AUTOTEST_EXPORT QT3DSI32 atomicMax(volatile QT3DSI32 *val, QT3DSI32 val2); + +} // namespace foundation +} // namespace qt3ds + +#endif |