| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the qmake spec of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QATOMIC_VXWORKS_H |
| #define QATOMIC_VXWORKS_H |
| |
| QT_BEGIN_HEADER |
| |
| #if defined(__ppc) |
| # include <QtCore/qatomic_powerpc.h> |
| #else // generic implementation with taskLock() |
| |
| #if 0 |
| // we don't want to include the system header here for two function prototypes, |
| // because it pulls in a _lot_ of stuff that pollutes the global namespace |
| # include <vxWorksCommon.h> |
| # include <taskLib.h> |
| #else |
| extern "C" int taskLock(); |
| extern "C" int taskUnlock(); |
| #endif |
| |
| |
| |
| 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 <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative() |
| { return false; } |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree() |
| { return false; } |
| |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative() |
| { return false; } |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree() |
| { return false; } |
| |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative() |
| { return false; } |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree() |
| { return false; } |
| |
| // Reference counting |
| |
| inline bool QBasicAtomicInt::ref() |
| { |
| taskLock(); |
| bool ret = (++_q_value != 0); |
| taskUnlock(); |
| return ret; |
| } |
| |
| inline bool QBasicAtomicInt::deref() |
| { |
| taskLock(); |
| bool ret = (--_q_value != 0); |
| taskUnlock(); |
| return ret; |
| } |
| |
| // Test-and-set for integers |
| |
| inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) |
| { |
| taskLock(); |
| if (_q_value == expectedValue) { |
| _q_value = newValue; |
| taskUnlock(); |
| return true; |
| } |
| taskUnlock(); |
| return false; |
| } |
| |
| 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) |
| { |
| taskLock(); |
| int returnValue = _q_value; |
| _q_value = newValue; |
| taskUnlock(); |
| return returnValue; |
| } |
| |
| 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) |
| { |
| taskLock(); |
| int originalValue = _q_value; |
| _q_value += valueToAdd; |
| taskUnlock(); |
| return originalValue; |
| } |
| |
| 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 <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) |
| { |
| taskLock(); |
| if (_q_value == expectedValue) { |
| _q_value = newValue; |
| taskUnlock(); |
| return true; |
| } |
| taskUnlock(); |
| return false; |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| // Fetch and store for pointers |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue) |
| { |
| taskLock(); |
| T *returnValue = (_q_value); |
| _q_value = newValue; |
| taskUnlock(); |
| return returnValue; |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| // Fetch and add for pointers |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) |
| { |
| taskLock(); |
| T *returnValue = (_q_value); |
| _q_value += valueToAdd; |
| taskUnlock(); |
| return returnValue; |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif // generic implementation with taskLock() |
| |
| QT_END_HEADER |
| |
| #endif // QATOMIC_VXWORKS_H |