qatomic_generic.h
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
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- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 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
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- #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 <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; }
- 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 <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::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 <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)
- {
- 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 <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)
- {
- 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 <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
- QT_END_HEADER
- #endif // QATOMIC_GENERIC_H