diff --git a/src/corelib/arch/qatomic_armv5.h b/src/corelib/arch/qatomic_armv5.h index 6939650c54..253b9263de 100644 --- a/src/corelib/arch/qatomic_armv5.h +++ b/src/corelib/arch/qatomic_armv5.h @@ -54,6 +54,7 @@ QT_END_NAMESPACE #pragma qt_sync_stop_processing #endif +#define Q_ATOMIC_INT32_IS_SUPPORTED #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE #define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE @@ -98,6 +99,7 @@ template struct QBasicAtomicOps: QGenericAtomicOps static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW; + template static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW; template static T fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW; template static T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType::AdditiveT valueToAdd) Q_DECL_NOTHROW; @@ -132,6 +134,18 @@ bool QBasicAtomicOps<4>::deref(T &_q_value) Q_DECL_NOTHROW return newValue != 0; } +template<> template inline +bool QBasicAtomicOps<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW +{ + T originalValue; + do { + originalValue = _q_value; + if (originalValue != expectedValue) + return false; + } while (_q_cmpxchg(expectedValue, newValue, &_q_value) != 0); + return true; +} + template<> template inline bool QBasicAtomicOps<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW {