/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** 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. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QATOMIC_GENERIC_H #define QATOMIC_GENERIC_H QT_BEGIN_HEADER QT_BEGIN_NAMESPACE #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE inline bool QBasicAtomicInt::isReferenceCountingNative() { return false; } inline bool QBasicAtomicInt::isReferenceCountingWaitFree() { return false; } #define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE inline bool QBasicAtomicInt::isTestAndSetNative() { return false; } inline bool QBasicAtomicInt::isTestAndSetWaitFree() { return false; } #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE inline bool QBasicAtomicInt::isFetchAndStoreNative() { return false; } inline bool QBasicAtomicInt::isFetchAndStoreWaitFree() { return false; } #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE inline bool QBasicAtomicInt::isFetchAndAddNative() { return false; } inline bool QBasicAtomicInt::isFetchAndAddWaitFree() { return false; } #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isTestAndSetNative() { return false; } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isTestAndSetWaitFree() { return false; } #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndStoreNative() { return false; } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndStoreWaitFree() { return false; } #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndAddNative() { return false; } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndAddWaitFree() { return false; } Q_CORE_EXPORT bool QBasicAtomicInt_testAndSetOrdered(volatile int *, int, int); Q_CORE_EXPORT int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *, int); Q_CORE_EXPORT int QBasicAtomicInt_fetchAndAddOrdered(volatile int *, int); Q_CORE_EXPORT bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *, void *, void *); Q_CORE_EXPORT void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *, void *); Q_CORE_EXPORT void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *, qptrdiff); // Reference counting inline bool QBasicAtomicInt::ref() { return QBasicAtomicInt_fetchAndAddOrdered(&_q_value, 1) != -1; } inline bool QBasicAtomicInt::deref() { return QBasicAtomicInt_fetchAndAddOrdered(&_q_value, -1) != 1; } // Test and set for integers inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) { return QBasicAtomicInt_testAndSetOrdered(&_q_value, expectedValue, newValue); } inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue) { return testAndSetOrdered(expectedValue, newValue); } inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue) { return testAndSetOrdered(expectedValue, newValue); } inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue) { return testAndSetOrdered(expectedValue, newValue); } // Fetch and store for integers inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) { return QBasicAtomicInt_fetchAndStoreOrdered(&_q_value, newValue); } inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue) { return fetchAndStoreOrdered(newValue); } inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue) { return fetchAndStoreOrdered(newValue); } inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue) { return fetchAndStoreOrdered(newValue); } // Fetch and add for integers inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) { return QBasicAtomicInt_fetchAndAddOrdered(&_q_value, valueToAdd); } inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd) { return fetchAndAddOrdered(valueToAdd); } inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd) { return fetchAndAddOrdered(valueToAdd); } inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd) { return fetchAndAddOrdered(valueToAdd); } // Test and set for pointers template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetOrdered(T *expectedValue, T *newValue) { union { T * volatile * typed; void * volatile * voidp; } pointer; pointer.typed = &_q_value; return QBasicAtomicPointer_testAndSetOrdered(pointer.voidp, expectedValue, newValue); } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetRelaxed(T *expectedValue, T *newValue) { return testAndSetOrdered(expectedValue, newValue); } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetAcquire(T *expectedValue, T *newValue) { return testAndSetOrdered(expectedValue, newValue); } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetRelease(T *expectedValue, T *newValue) { return testAndSetOrdered(expectedValue, newValue); } // Fetch and store for pointers template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreOrdered(T *newValue) { union { T * volatile * typed; void * volatile * voidp; } pointer; union { T *typed; void *voidp; } returnValue; pointer.typed = &_q_value; returnValue.voidp = QBasicAtomicPointer_fetchAndStoreOrdered(pointer.voidp, newValue); return returnValue.typed; } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreRelaxed(T *newValue) { return fetchAndStoreOrdered(newValue); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreAcquire(T *newValue) { return fetchAndStoreOrdered(newValue); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreRelease(T *newValue) { return fetchAndStoreOrdered(newValue); } // Fetch and add for pointers template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddOrdered(qptrdiff valueToAdd) { union { T * volatile *typed; void * volatile *voidp; } pointer; union { T *typed; void *voidp; } returnValue; pointer.typed = &_q_value; returnValue.voidp = QBasicAtomicPointer_fetchAndAddOrdered(pointer.voidp, valueToAdd * sizeof(T)); return returnValue.typed; } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddRelaxed(qptrdiff valueToAdd) { return fetchAndAddOrdered(valueToAdd); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddAcquire(qptrdiff valueToAdd) { return fetchAndAddOrdered(valueToAdd); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddRelease(qptrdiff valueToAdd) { return fetchAndAddOrdered(valueToAdd); } QT_END_NAMESPACE QT_END_HEADER #endif // QATOMIC_GENERIC_H