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| ** |
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| |
| #ifndef QATOMIC_UNIX_H |
| #define QATOMIC_UNIX_H |
| |
| #include <QtCore/qgenericatomic.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| #if 0 |
| // silence syncqt warnings |
| QT_END_NAMESPACE |
| #pragma qt_sync_skip_header_check |
| #pragma qt_sync_stop_processing |
| #endif |
| |
| #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_NOT_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE |
| |
| #define Q_ATOMIC_INT32_IS_SUPPORTED |
| #define Q_ATOMIC_INT32_REFERENCE_COUNTING_IS_NOT_NATIVE |
| #define Q_ATOMIC_INT32_TEST_AND_SET_IS_NOT_NATIVE |
| #define Q_ATOMIC_INT32_FETCH_AND_STORE_IS_NOT_NATIVE |
| #define Q_ATOMIC_INT32_FETCH_AND_ADD_IS_NOT_NATIVE |
| |
| #define Q_ATOMIC_INT64_IS_SUPPORTED |
| #define Q_ATOMIC_INT64_REFERENCE_COUNTING_IS_NOT_NATIVE |
| #define Q_ATOMIC_INT64_TEST_AND_SET_IS_NOT_NATIVE |
| #define Q_ATOMIC_INT64_FETCH_AND_STORE_IS_NOT_NATIVE |
| #define Q_ATOMIC_INT64_FETCH_AND_ADD_IS_NOT_NATIVE |
| |
| #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE |
| |
| // No definition, needs specialization |
| template <typename T> struct QAtomicOps; |
| |
| // 32-bit version |
| template <> |
| struct QAtomicOps<int> : QGenericAtomicOps<QAtomicOps<int> > |
| { |
| typedef int Type; |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; } |
| Q_CORE_EXPORT static bool testAndSetRelaxed(int &_q_value, int expectedValue, int newValue) Q_DECL_NOTHROW; |
| }; |
| |
| // 64-bit version |
| template <> |
| struct QAtomicOps<long long> : QGenericAtomicOps<QAtomicOps<long long> > |
| { |
| typedef long long Type; |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; } |
| Q_CORE_EXPORT static bool testAndSetRelaxed(Type &_q_value, Type expectedValue, Type newValue) Q_DECL_NOTHROW; |
| }; |
| |
| // pointer version |
| template <> |
| struct QAtomicOps<void *> : QGenericAtomicOps<QAtomicOps<void *> > |
| { |
| typedef void *Type; |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; } |
| Q_CORE_EXPORT static bool testAndSetRelaxed(void *&_q_value, void *expectedValue, void *newValue) Q_DECL_NOTHROW; |
| }; |
| |
| template <typename T> |
| struct QAtomicOps<T *> : QGenericAtomicOps<QAtomicOps<T *> > |
| { |
| typedef T *Type; |
| |
| // helper to strip cv qualifiers |
| static inline void *nocv(const T *p) { return const_cast<void *>(static_cast<const volatile void *>(p)); } |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; } |
| static inline bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) Q_DECL_NOTHROW |
| { |
| // forward to the void* specialization |
| void *voidp = nocv(_q_value); |
| bool returnValue = QAtomicOps<void *>::testAndSetRelaxed(voidp, nocv(expectedValue), nocv(newValue)); |
| _q_value = reinterpret_cast<T *>(voidp); |
| return returnValue; |
| } |
| }; |
| |
| // 32- and 64-bit unsigned versions |
| template <> struct QAtomicOps<unsigned> : QAtomicOps<int> |
| { |
| typedef unsigned Type; |
| Q_CORE_EXPORT static bool testAndSetRelaxed(Type &_q_value, Type expectedValue, Type newValue) Q_DECL_NOTHROW |
| { |
| return QAtomicOps<int>::testAndSetRelaxed(reinterpret_cast<int &>(_q_value), int(expectedValue), int(newValue)); |
| } |
| }; |
| template <> struct QAtomicOps<unsigned long long> : QAtomicOps<long long> |
| { |
| typedef unsigned long longType; |
| Q_CORE_EXPORT static bool testAndSetRelaxed(Type &_q_value, Type expectedValue, Type newValue) Q_DECL_NOTHROW |
| { |
| return QAtomicOps<long long>::testAndSetRelaxed(reinterpret_cast<long long &>(_q_value), int(expectedValue), int(newValue)); |
| } |
| }; |
| |
| QT_END_NAMESPACE |
| #endif // QATOMIC_UNIX_H |