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Diffstat (limited to 'src/corelib/arch/qatomic_mips.h')
| -rw-r--r-- | src/corelib/arch/qatomic_mips.h | 892 |
1 files changed, 892 insertions, 0 deletions
diff --git a/src/corelib/arch/qatomic_mips.h b/src/corelib/arch/qatomic_mips.h new file mode 100644 index 0000000000..6f2607c524 --- /dev/null +++ b/src/corelib/arch/qatomic_mips.h @@ -0,0 +1,892 @@ +/**************************************************************************** +** +** 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 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_MIPS_H +#define QATOMIC_MIPS_H + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isReferenceCountingNative() +{ return true; } +inline bool QBasicAtomicInt::isReferenceCountingWaitFree() +{ return false; } + +#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isTestAndSetNative() +{ return true; } +inline bool QBasicAtomicInt::isTestAndSetWaitFree() +{ return false; } + +#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isFetchAndStoreNative() +{ return true; } +inline bool QBasicAtomicInt::isFetchAndStoreWaitFree() +{ return false; } + +#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isFetchAndAddNative() +{ return true; } +inline bool QBasicAtomicInt::isFetchAndAddWaitFree() +{ return false; } + +#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative() +{ return true; } +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree() +{ return false; } + +#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative() +{ return true; } +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree() +{ return false; } + +#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative() +{ return true; } +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree() +{ return false; } + +#if defined(Q_CC_GNU) && !defined(Q_OS_IRIX) + +#if _MIPS_SIM == _ABIO32 +#define SET_MIPS2 ".set mips2\n\t" +#else +#define SET_MIPS2 +#endif + +inline bool QBasicAtomicInt::ref() +{ + register int originalValue; + register int newValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "addiu %[newValue], %[originalValue], %[one]\n" + "sc %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [one] "i" (1) + : "cc", "memory"); + return originalValue != -1; +} + +inline bool QBasicAtomicInt::deref() +{ + register int originalValue; + register int newValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "addiu %[newValue], %[originalValue], %[minusOne]\n" + "sc %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [minusOne] "i" (-1) + : "cc", "memory"); + return originalValue != 1; +} + +inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue) +{ + register int result; + register int tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[result], %[_q_value]\n" + "xor %[result], %[result], %[expectedValue]\n" + "bnez %[result], 0f\n" + "nop\n" + "move %[tempValue], %[newValue]\n" + "sc %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "0:\n" + ".set pop\n" + : [result] "=&r" (result), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [expectedValue] "r" (expectedValue), + [newValue] "r" (newValue) + : "cc", "memory"); + return result == 0; +} + +inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue) +{ + register int result; + register int tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[result], %[_q_value]\n" + "xor %[result], %[result], %[expectedValue]\n" + "bnez %[result], 0f\n" + "nop\n" + "move %[tempValue], %[newValue]\n" + "sc %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "sync\n" + "0:\n" + ".set pop\n" + : [result] "=&r" (result), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [expectedValue] "r" (expectedValue), + [newValue] "r" (newValue) + : "cc", "memory"); + return result == 0; +} + +inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue) +{ + register int result; + register int tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "sync\n" + "0:\n" + "ll %[result], %[_q_value]\n" + "xor %[result], %[result], %[expectedValue]\n" + "bnez %[result], 0f\n" + "nop\n" + "move %[tempValue], %[newValue]\n" + "sc %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "0:\n" + ".set pop\n" + : [result] "=&r" (result), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [expectedValue] "r" (expectedValue), + [newValue] "r" (newValue) + : "cc", "memory"); + return result == 0; +} + +inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) +{ + return testAndSetAcquire(expectedValue, newValue); +} + +inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue) +{ + register int originalValue; + register int tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "move %[tempValue], %[newValue]\n" + "sc %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [newValue] "r" (newValue) + : "cc", "memory"); + return originalValue; +} + +inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue) +{ + register int originalValue; + register int tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "move %[tempValue], %[newValue]\n" + "sc %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "sync\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [newValue] "r" (newValue) + : "cc", "memory"); + return originalValue; +} + +inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue) +{ + register int originalValue; + register int tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "sync\n" + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "move %[tempValue], %[newValue]\n" + "sc %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [newValue] "r" (newValue) + : "cc", "memory"); + return originalValue; +} + +inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) +{ + return fetchAndStoreAcquire(newValue); +} + +inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd) +{ + register int originalValue; + register int newValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "addu %[newValue], %[originalValue], %[valueToAdd]\n" + "sc %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [valueToAdd] "r" (valueToAdd) + : "cc", "memory"); + return originalValue; +} + +inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd) +{ + register int originalValue; + register int newValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "addu %[newValue], %[originalValue], %[valueToAdd]\n" + "sc %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + "sync\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [valueToAdd] "r" (valueToAdd) + : "cc", "memory"); + return originalValue; +} + +inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd) +{ + register int originalValue; + register int newValue; + asm volatile(".set push\n" + SET_MIPS2 + "sync\n" + "0:\n" + "ll %[originalValue], %[_q_value]\n" + "addu %[newValue], %[originalValue], %[valueToAdd]\n" + "sc %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [valueToAdd] "r" (valueToAdd) + : "cc", "memory"); + return originalValue; +} + +inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) +{ + return fetchAndAddAcquire(valueToAdd); +} + +#if defined(__LP64__) +# define LLP "lld" +# define SCP "scd" +#else +# define LLP "ll" +# define SCP "sc" +#endif + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue) +{ + register T *result; + register T *tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + LLP" %[result], %[_q_value]\n" + "xor %[result], %[result], %[expectedValue]\n" + "bnez %[result], 0f\n" + "nop\n" + "move %[tempValue], %[newValue]\n" + SCP" %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "0:\n" + ".set pop\n" + : [result] "=&r" (result), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [expectedValue] "r" (expectedValue), + [newValue] "r" (newValue) + : "cc", "memory"); + return result == 0; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue) +{ + register T *result; + register T *tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + LLP" %[result], %[_q_value]\n" + "xor %[result], %[result], %[expectedValue]\n" + "bnez %[result], 0f\n" + "nop\n" + "move %[tempValue], %[newValue]\n" + SCP" %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "sync\n" + "0:\n" + ".set pop\n" + : [result] "=&r" (result), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [expectedValue] "r" (expectedValue), + [newValue] "r" (newValue) + : "cc", "memory"); + return result == 0; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue) +{ + register T *result; + register T *tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "sync\n" + "0:\n" + LLP" %[result], %[_q_value]\n" + "xor %[result], %[result], %[expectedValue]\n" + "bnez %[result], 0f\n" + "nop\n" + "move %[tempValue], %[newValue]\n" + SCP" %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "0:\n" + ".set pop\n" + : [result] "=&r" (result), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [expectedValue] "r" (expectedValue), + [newValue] "r" (newValue) + : "cc", "memory"); + return result == 0; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) +{ + return testAndSetAcquire(expectedValue, newValue); +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue) +{ + register T *originalValue; + register T *tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + LLP" %[originalValue], %[_q_value]\n" + "move %[tempValue], %[newValue]\n" + SCP" %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [newValue] "r" (newValue) + : "cc", "memory"); + return originalValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue) +{ + register T *originalValue; + register T *tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + LLP" %[originalValue], %[_q_value]\n" + "move %[tempValue], %[newValue]\n" + SCP" %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + "sync\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [newValue] "r" (newValue) + : "cc", "memory"); + return originalValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue) +{ + register T *originalValue; + register T *tempValue; + asm volatile(".set push\n" + SET_MIPS2 + "sync\n" + "0:\n" + LLP" %[originalValue], %[_q_value]\n" + "move %[tempValue], %[newValue]\n" + SCP" %[tempValue], %[_q_value]\n" + "beqz %[tempValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [tempValue] "=&r" (tempValue), + [_q_value] "+m" (_q_value) + : [newValue] "r" (newValue) + : "cc", "memory"); + return originalValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue) +{ + return fetchAndStoreAcquire(newValue); +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd) +{ + register T *originalValue; + register T *newValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + LLP" %[originalValue], %[_q_value]\n" + "addu %[newValue], %[originalValue], %[valueToAdd]\n" + SCP" %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [valueToAdd] "r" (valueToAdd * sizeof(T)) + : "cc", "memory"); + return originalValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd) +{ + register T *originalValue; + register T *newValue; + asm volatile(".set push\n" + SET_MIPS2 + "0:\n" + LLP" %[originalValue], %[_q_value]\n" + "addu %[newValue], %[originalValue], %[valueToAdd]\n" + SCP" %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + "sync\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [valueToAdd] "r" (valueToAdd * sizeof(T)) + : "cc", "memory"); + return originalValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd) +{ + register T *originalValue; + register T *newValue; + asm volatile(".set push\n" + SET_MIPS2 + "sync\n" + "0:\n" + LLP" %[originalValue], %[_q_value]\n" + "addu %[newValue], %[originalValue], %[valueToAdd]\n" + SCP" %[newValue], %[_q_value]\n" + "beqz %[newValue], 0b\n" + "nop\n" + ".set pop\n" + : [originalValue] "=&r" (originalValue), + [_q_value] "+m" (_q_value), + [newValue] "=&r" (newValue) + : [valueToAdd] "r" (valueToAdd * sizeof(T)) + : "cc", "memory"); + return originalValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) +{ + return fetchAndAddAcquire(valueToAdd); +} + +#else // !Q_CC_GNU + +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_acquire_int(volatile int *ptr, int expected, int newval); + Q_CORE_EXPORT int q_atomic_test_and_set_release_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_test_and_set_acquire_ptr(volatile void *ptr, void *expected, void *newval); + Q_CORE_EXPORT int q_atomic_test_and_set_release_ptr(volatile void *ptr, void *expected, void *newval); +} // extern "C" + +inline bool QBasicAtomicInt::ref() +{ + register int expected; + for (;;) { + expected = _q_value; + if (q_atomic_test_and_set_int(&_q_value, expected, expected + 1)) + break; + } + return expected != -1; +} + +inline bool QBasicAtomicInt::deref() +{ + register int expected; + for (;;) { + expected = _q_value; + if (q_atomic_test_and_set_int(&_q_value, expected, expected - 1)) + break; + } + return expected != 1; +} + +inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue) +{ + return q_atomic_test_and_set_int(&_q_value, expectedValue, newValue) != 0; +} + +inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue) +{ + return q_atomic_test_and_set_acquire_int(&_q_value, expectedValue, newValue) != 0; +} + +inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue) +{ + return q_atomic_test_and_set_release_int(&_q_value, expectedValue, newValue) != 0; +} + +inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) +{ + return q_atomic_test_and_set_acquire_int(&_q_value, expectedValue, newValue) != 0; +} + +inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetRelaxed(returnValue, newValue)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetAcquire(returnValue, newValue)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetRelease(returnValue, newValue)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetOrdered(returnValue, newValue)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetRelaxed(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetAcquire(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetRelease(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) +{ + int returnValue; + for (;;) { + returnValue = _q_value; + if (testAndSetOrdered(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue) +{ + return q_atomic_test_and_set_ptr(&_q_value, expectedValue, newValue) != 0; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue) +{ + return q_atomic_test_and_set_acquire_ptr(&_q_value, expectedValue, newValue) != 0; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue) +{ + return q_atomic_test_and_set_release_ptr(&_q_value, expectedValue, newValue) != 0; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) +{ + return q_atomic_test_and_set_acquire_ptr(&_q_value, expectedValue, newValue) != 0; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetRelaxed(returnValue, newValue)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetAcquire(returnValue, newValue)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetRelease(returnValue, newValue)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetOrdered(returnValue, newValue)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetRelaxed(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE +T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetAcquire(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetRelease(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) +{ + T *returnValue; + for (;;) { + returnValue = (_q_value); + if (testAndSetOrdered(returnValue, returnValue + valueToAdd)) + break; + } + return returnValue; +} + +#endif // Q_CC_GNU + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QATOMIC_MIPS_H |