/**************************************************************************** ** ** 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_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