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Diffstat (limited to 'qtinterface/qt4/Qt/qatomic_i386.h')
| -rw-r--r-- | qtinterface/qt4/Qt/qatomic_i386.h | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/qtinterface/qt4/Qt/qatomic_i386.h b/qtinterface/qt4/Qt/qatomic_i386.h new file mode 100644 index 0000000..473b178 --- /dev/null +++ b/qtinterface/qt4/Qt/qatomic_i386.h @@ -0,0 +1,361 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** 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. +** +** 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QATOMIC_I386_H +#define QATOMIC_I386_H + +QT_BEGIN_HEADER +QT_BEGIN_NAMESPACE + +#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE +#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE + +inline bool QBasicAtomicInt::isReferenceCountingNative() +{ return true; } +inline bool QBasicAtomicInt::isReferenceCountingWaitFree() +{ return true; } + +#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE +#define Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE + +inline bool QBasicAtomicInt::isTestAndSetNative() +{ return true; } +inline bool QBasicAtomicInt::isTestAndSetWaitFree() +{ return true; } + +#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE +#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE + +inline bool QBasicAtomicInt::isFetchAndStoreNative() +{ return true; } +inline bool QBasicAtomicInt::isFetchAndStoreWaitFree() +{ return true; } + +#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE +#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE + +inline bool QBasicAtomicInt::isFetchAndAddNative() +{ return true; } +inline bool QBasicAtomicInt::isFetchAndAddWaitFree() +{ return true; } + +#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE +#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative() +{ return true; } +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree() +{ return true; } + +#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE +#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative() +{ return true; } +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree() +{ return true; } + +#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE +#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_WAIT_FREE + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative() +{ return true; } +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree() +{ return true; } + +#if defined(Q_CC_GNU) || defined(Q_CC_INTEL) + +inline bool QBasicAtomicInt::ref() +{ + unsigned char ret; + asm volatile("lock\n" + "incl %0\n" + "setne %1" + : "=m" (_q_value), "=qm" (ret) + : "m" (_q_value) + : "memory"); + return ret != 0; +} + +inline bool QBasicAtomicInt::deref() +{ + unsigned char ret; + asm volatile("lock\n" + "decl %0\n" + "setne %1" + : "=m" (_q_value), "=qm" (ret) + : "m" (_q_value) + : "memory"); + return ret != 0; +} + +inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) +{ + unsigned char ret; + asm volatile("lock\n" + "cmpxchgl %3,%2\n" + "sete %1\n" + : "=a" (newValue), "=qm" (ret), "+m" (_q_value) + : "r" (newValue), "0" (expectedValue) + : "memory"); + return ret != 0; +} + +inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) +{ + asm volatile("xchgl %0,%1" + : "=r" (newValue), "+m" (_q_value) + : "0" (newValue) + : "memory"); + return newValue; +} + +inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) +{ + asm volatile("lock\n" + "xaddl %0,%1" + : "=r" (valueToAdd), "+m" (_q_value) + : "0" (valueToAdd) + : "memory"); + return valueToAdd; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) +{ + unsigned char ret; + asm volatile("lock\n" + "cmpxchgl %3,%2\n" + "sete %1\n" + : "=a" (newValue), "=qm" (ret), "+m" (_q_value) + : "r" (newValue), "0" (expectedValue) + : "memory"); + return ret != 0; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue) +{ + asm volatile("xchgl %0,%1" + : "=r" (newValue), "+m" (_q_value) + : "0" (newValue) + : "memory"); + return newValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) +{ + asm volatile("lock\n" + "xaddl %0,%1" + : "=r" (valueToAdd), "+m" (_q_value) + : "0" (valueToAdd * sizeof(T)) + : "memory"); + return reinterpret_cast<T *>(valueToAdd); +} + +#else + +extern "C" { + Q_CORE_EXPORT int q_atomic_test_and_set_int(volatile int *ptr, int expected, int newval); + Q_CORE_EXPORT int q_atomic_test_and_set_ptr(volatile void *ptr, void *expected, void *newval); + Q_CORE_EXPORT int q_atomic_increment(volatile int *ptr); + Q_CORE_EXPORT int q_atomic_decrement(volatile int *ptr); + Q_CORE_EXPORT int q_atomic_set_int(volatile int *ptr, int newval); + Q_CORE_EXPORT void *q_atomic_set_ptr(volatile void *ptr, void *newval); + Q_CORE_EXPORT int q_atomic_fetch_and_add_int(volatile int *ptr, int value); + Q_CORE_EXPORT void *q_atomic_fetch_and_add_ptr(volatile void *ptr, int value); +} // extern "C" + +inline bool QBasicAtomicInt::ref() +{ + return q_atomic_increment(&_q_value) != 0; +} + +inline bool QBasicAtomicInt::deref() +{ + return q_atomic_decrement(&_q_value) != 0; +} + +inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) +{ + return q_atomic_test_and_set_int(&_q_value, expectedValue, newValue) != 0; +} + +inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) +{ + return q_atomic_set_int(&_q_value, newValue); +} + +inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) +{ + return q_atomic_fetch_and_add_int(&_q_value, valueToAdd); +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) +{ + return q_atomic_test_and_set_ptr(&_q_value, expectedValue, newValue); +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue) +{ + return reinterpret_cast<T *>(q_atomic_set_ptr(&_q_value, newValue)); +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) +{ + return reinterpret_cast<T *>(q_atomic_fetch_and_add_ptr(&_q_value, valueToAdd * sizeof(T))); +} + +#endif + +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); +} + +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); +} + +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); +} + +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); +} + +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); +} + +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_I386_H |