| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Copyright (C) 2016 Intel Corporation. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
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| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QATOMIC_MSVC_H |
| #define QATOMIC_MSVC_H |
| |
| #include <QtCore/qgenericatomic.h> |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| // use compiler intrinsics for all atomic functions |
| # define QT_INTERLOCKED_PREFIX _ |
| # define QT_INTERLOCKED_PROTOTYPE |
| # define QT_INTERLOCKED_DECLARE_PROTOTYPES |
| # define QT_INTERLOCKED_INTRINSIC |
| # define Q_ATOMIC_INT16_IS_SUPPORTED |
| |
| # ifdef _WIN64 |
| # define Q_ATOMIC_INT64_IS_SUPPORTED |
| # endif |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // Prototype declaration |
| |
| #define QT_INTERLOCKED_CONCAT_I(prefix, suffix) \ |
| prefix ## suffix |
| #define QT_INTERLOCKED_CONCAT(prefix, suffix) \ |
| QT_INTERLOCKED_CONCAT_I(prefix, suffix) |
| |
| // MSVC intrinsics prefix function names with an underscore. Also, if platform |
| // SDK headers have been included, the Interlocked names may be defined as |
| // macros. |
| // To avoid double underscores, we paste the prefix with Interlocked first and |
| // then the remainder of the function name. |
| #define QT_INTERLOCKED_FUNCTION(name) \ |
| QT_INTERLOCKED_CONCAT( \ |
| QT_INTERLOCKED_CONCAT(QT_INTERLOCKED_PREFIX, Interlocked), name) |
| |
| #ifndef QT_INTERLOCKED_VOLATILE |
| # define QT_INTERLOCKED_VOLATILE volatile |
| #endif |
| |
| #ifndef QT_INTERLOCKED_PREFIX |
| #define QT_INTERLOCKED_PREFIX |
| #endif |
| |
| #ifndef QT_INTERLOCKED_PROTOTYPE |
| #define QT_INTERLOCKED_PROTOTYPE |
| #endif |
| |
| #ifdef QT_INTERLOCKED_DECLARE_PROTOTYPES |
| #undef QT_INTERLOCKED_DECLARE_PROTOTYPES |
| |
| extern "C" { |
| |
| long QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Increment )(long QT_INTERLOCKED_VOLATILE *); |
| long QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Decrement )(long QT_INTERLOCKED_VOLATILE *); |
| long QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( CompareExchange )(long QT_INTERLOCKED_VOLATILE *, long, long); |
| long QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Exchange )(long QT_INTERLOCKED_VOLATILE *, long); |
| long QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( ExchangeAdd )(long QT_INTERLOCKED_VOLATILE *, long); |
| |
| # if !defined(__i386__) && !defined(_M_IX86) |
| void * QT_INTERLOCKED_FUNCTION( CompareExchangePointer )(void * QT_INTERLOCKED_VOLATILE *, void *, void *); |
| void * QT_INTERLOCKED_FUNCTION( ExchangePointer )(void * QT_INTERLOCKED_VOLATILE *, void *); |
| __int64 QT_INTERLOCKED_FUNCTION( ExchangeAdd64 )(__int64 QT_INTERLOCKED_VOLATILE *, __int64); |
| # endif |
| |
| # ifdef Q_ATOMIC_INT16_IS_SUPPORTED |
| short QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Increment16 )(short QT_INTERLOCKED_VOLATILE *); |
| short QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Decrement16 )(short QT_INTERLOCKED_VOLATILE *); |
| short QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( CompareExchange16 )(short QT_INTERLOCKED_VOLATILE *, short, short); |
| short QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Exchange16 )(short QT_INTERLOCKED_VOLATILE *, short); |
| short QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( ExchangeAdd16 )(short QT_INTERLOCKED_VOLATILE *, short); |
| # endif |
| # ifdef Q_ATOMIC_INT64_IS_SUPPORTED |
| __int64 QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Increment64 )(__int64 QT_INTERLOCKED_VOLATILE *); |
| __int64 QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Decrement64 )(__int64 QT_INTERLOCKED_VOLATILE *); |
| __int64 QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( CompareExchange64 )(__int64 QT_INTERLOCKED_VOLATILE *, __int64, __int64); |
| __int64 QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( Exchange64 )(__int64 QT_INTERLOCKED_VOLATILE *, __int64); |
| //above already: qint64 QT_INTERLOCKED_PROTOTYPE QT_INTERLOCKED_FUNCTION( ExchangeAdd64 )(qint64 QT_INTERLOCKED_VOLATILE *, qint64); |
| # endif |
| } |
| |
| #endif // QT_INTERLOCKED_DECLARE_PROTOTYPES |
| |
| #undef QT_INTERLOCKED_PROTOTYPE |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #ifdef QT_INTERLOCKED_INTRINSIC |
| #undef QT_INTERLOCKED_INTRINSIC |
| |
| # pragma intrinsic (_InterlockedIncrement) |
| # pragma intrinsic (_InterlockedDecrement) |
| # pragma intrinsic (_InterlockedExchange) |
| # pragma intrinsic (_InterlockedCompareExchange) |
| # pragma intrinsic (_InterlockedExchangeAdd) |
| |
| # if !defined(_M_IX86) |
| # pragma intrinsic (_InterlockedCompareExchangePointer) |
| # pragma intrinsic (_InterlockedExchangePointer) |
| # pragma intrinsic (_InterlockedExchangeAdd64) |
| # endif |
| |
| #endif // QT_INTERLOCKED_INTRINSIC |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // Interlocked* replacement macros |
| |
| #if defined(__i386__) || defined(_M_IX86) |
| |
| # define QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(value, newValue, expectedValue) \ |
| reinterpret_cast<void *>( \ |
| QT_INTERLOCKED_FUNCTION(CompareExchange)( \ |
| reinterpret_cast<long QT_INTERLOCKED_VOLATILE *>(value), \ |
| long(newValue), \ |
| long(expectedValue))) |
| |
| # define QT_INTERLOCKED_EXCHANGE_POINTER(value, newValue) \ |
| QT_INTERLOCKED_FUNCTION(Exchange)( \ |
| reinterpret_cast<long QT_INTERLOCKED_VOLATILE *>(value), \ |
| long(newValue)) |
| |
| # define QT_INTERLOCKED_EXCHANGE_ADD_POINTER(value, valueToAdd) \ |
| QT_INTERLOCKED_FUNCTION(ExchangeAdd)( \ |
| reinterpret_cast<long QT_INTERLOCKED_VOLATILE *>(value), \ |
| (valueToAdd)) |
| |
| #else // !defined(__i386__) && !defined(_M_IX86) |
| |
| # define QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(value, newValue, expectedValue) \ |
| QT_INTERLOCKED_FUNCTION(CompareExchangePointer)( \ |
| (void * QT_INTERLOCKED_VOLATILE *)(value), \ |
| (void *) (newValue), \ |
| (void *) (expectedValue)) |
| |
| # define QT_INTERLOCKED_EXCHANGE_POINTER(value, newValue) \ |
| QT_INTERLOCKED_FUNCTION(ExchangePointer)( \ |
| (void * QT_INTERLOCKED_VOLATILE *)(value), \ |
| (void *) (newValue)) |
| |
| # define QT_INTERLOCKED_EXCHANGE_ADD_POINTER(value, valueToAdd) \ |
| QT_INTERLOCKED_FUNCTION(ExchangeAdd64)( \ |
| reinterpret_cast<qint64 QT_INTERLOCKED_VOLATILE *>(value), \ |
| (valueToAdd)) |
| |
| #endif // !defined(__i386__) && !defined(_M_IX86) |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| 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_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT32_IS_SUPPORTED |
| |
| #define Q_ATOMIC_INT32_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT32_REFERENCE_COUNTING_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT32_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT32_TEST_AND_SET_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT32_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT32_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_INT32_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT32_FETCH_AND_ADD_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_WAIT_FREE |
| |
| #ifdef Q_ATOMIC_INT16_IS_SUPPORTED |
| # define Q_ATOMIC_INT16_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT16_REFERENCE_COUNTING_IS_WAIT_FREE |
| |
| # define Q_ATOMIC_INT16_TEST_AND_SET_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT16_TEST_AND_SET_IS_WAIT_FREE |
| |
| # define Q_ATOMIC_INT16_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT16_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| # define Q_ATOMIC_INT16_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT16_FETCH_AND_ADD_IS_WAIT_FREE |
| |
| template<> struct QAtomicOpsSupport<2> { enum { IsSupported = 1 }; }; |
| #endif |
| |
| #ifdef Q_ATOMIC_INT64_IS_SUPPORTED |
| # define Q_ATOMIC_INT64_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT64_REFERENCE_COUNTING_IS_WAIT_FREE |
| |
| # define Q_ATOMIC_INT64_TEST_AND_SET_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT64_TEST_AND_SET_IS_WAIT_FREE |
| |
| # define Q_ATOMIC_INT64_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT64_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| # define Q_ATOMIC_INT64_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| # define Q_ATOMIC_INT64_FETCH_AND_ADD_IS_WAIT_FREE |
| |
| template<> struct QAtomicOpsSupport<8> { enum { IsSupported = 1 }; }; |
| #endif |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| template <int N> struct QAtomicWindowsType { typedef typename QIntegerForSize<N>::Signed Type; }; |
| template <> struct QAtomicWindowsType<4> { typedef long Type; }; |
| |
| |
| template <int N> struct QAtomicOpsBySize : QGenericAtomicOps<QAtomicOpsBySize<N> > |
| { |
| static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() noexcept { return true; } |
| template <typename T> static bool ref(T &_q_value) noexcept; |
| template <typename T> static bool deref(T &_q_value) noexcept; |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return true; } |
| template <typename T> static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept; |
| template <typename T> |
| static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept; |
| |
| static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return true; } |
| template <typename T> static T fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept; |
| |
| static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return true; } |
| template <typename T> static T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept; |
| |
| private: |
| typedef typename QAtomicWindowsType<N>::Type Type; |
| template <typename T> static inline Type *atomic(T *t) |
| { Q_STATIC_ASSERT(sizeof(T) == sizeof(Type)); return reinterpret_cast<Type *>(t); } |
| template <typename T> static inline Type value(T t) |
| { Q_STATIC_ASSERT(sizeof(T) == sizeof(Type)); return Type(t); } |
| }; |
| |
| template <typename T> |
| struct QAtomicOps : QAtomicOpsBySize<sizeof(T)> |
| { |
| typedef T Type; |
| }; |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<4>::ref(T &_q_value) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Increment)(atomic(&_q_value)) != 0; |
| } |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<4>::deref(T &_q_value) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Decrement)(atomic(&_q_value)) != 0; |
| } |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(CompareExchange)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue); |
| } |
| |
| template<> template <typename T> |
| inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept |
| { |
| *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange)(atomic(&_q_value), newValue, expectedValue)); |
| return *currentValue == expectedValue; |
| } |
| |
| template<> template<typename T> |
| inline T QAtomicOpsBySize<4>::fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Exchange)(atomic(&_q_value), value(newValue)); |
| } |
| |
| template<> template<typename T> |
| inline T QAtomicOpsBySize<4>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(ExchangeAdd)(atomic(&_q_value), value<T>(valueToAdd * QAtomicAdditiveType<T>::AddScale)); |
| } |
| |
| #ifdef Q_ATOMIC_INT16_IS_SUPPORTED |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<2>::ref(T &_q_value) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Increment16)(atomic(&_q_value)) != 0; |
| } |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<2>::deref(T &_q_value) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Decrement16)(atomic(&_q_value)) != 0; |
| } |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(CompareExchange16)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue); |
| } |
| |
| template<> template <typename T> |
| inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept |
| { |
| *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange16)(atomic(&_q_value), newValue, expectedValue)); |
| return *currentValue == expectedValue; |
| } |
| |
| template<> template<typename T> |
| inline T QAtomicOpsBySize<2>::fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Exchange16)(atomic(&_q_value), value(newValue)); |
| } |
| |
| template<> template<typename T> |
| inline T QAtomicOpsBySize<2>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(ExchangeAdd16)(atomic(&_q_value), value<T>(valueToAdd * QAtomicAdditiveType<T>::AddScale)); |
| } |
| #endif |
| |
| #ifdef Q_ATOMIC_INT64_IS_SUPPORTED |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<8>::ref(T &_q_value) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Increment64)(atomic(&_q_value)) != 0; |
| } |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<8>::deref(T &_q_value) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Decrement64)(atomic(&_q_value)) != 0; |
| } |
| |
| template<> template<typename T> |
| inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(CompareExchange64)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue); |
| } |
| |
| template<> template <typename T> |
| inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept |
| { |
| *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange64)(atomic(&_q_value), newValue, expectedValue)); |
| return *currentValue == expectedValue; |
| } |
| |
| template<> template<typename T> |
| inline T QAtomicOpsBySize<8>::fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(Exchange64)(atomic(&_q_value), value(newValue)); |
| } |
| |
| template<> template<typename T> |
| inline T QAtomicOpsBySize<8>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept |
| { |
| return QT_INTERLOCKED_FUNCTION(ExchangeAdd64)(atomic(&_q_value), value<T>(valueToAdd * QAtomicAdditiveType<T>::AddScale)); |
| } |
| #endif |
| |
| // Specialization for pointer types, since we have Interlocked*Pointer() variants in some configurations |
| template <typename T> |
| struct QAtomicOps<T *> : QGenericAtomicOps<QAtomicOps<T *> > |
| { |
| typedef T *Type; |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return true; } |
| static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) noexcept; |
| static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) noexcept; |
| |
| static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return true; } |
| static T *fetchAndStoreRelaxed(T *&_q_value, T *newValue) noexcept; |
| |
| static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return true; } |
| static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return true; } |
| static T *fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) noexcept; |
| }; |
| |
| template <typename T> |
| inline bool QAtomicOps<T *>::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) noexcept |
| { |
| return QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue) == expectedValue; |
| } |
| |
| template <typename T> |
| inline bool QAtomicOps<T *>::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) noexcept |
| { |
| *currentValue = reinterpret_cast<T *>(QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue)); |
| return *currentValue == expectedValue; |
| } |
| |
| template <typename T> |
| inline T *QAtomicOps<T *>::fetchAndStoreRelaxed(T *&_q_value, T *newValue) noexcept |
| { |
| return reinterpret_cast<T *>(QT_INTERLOCKED_EXCHANGE_POINTER(&_q_value, newValue)); |
| } |
| |
| template <typename T> |
| inline T *QAtomicOps<T *>::fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) noexcept |
| { |
| return reinterpret_cast<T *>(QT_INTERLOCKED_EXCHANGE_ADD_POINTER(&_q_value, valueToAdd * sizeof(T))); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // Cleanup |
| |
| #undef QT_INTERLOCKED_CONCAT_I |
| #undef QT_INTERLOCKED_CONCAT |
| #undef QT_INTERLOCKED_FUNCTION |
| #undef QT_INTERLOCKED_PREFIX |
| |
| #undef QT_INTERLOCKED_VOLATILE |
| |
| #undef QT_INTERLOCKED_INCREMENT |
| #undef QT_INTERLOCKED_DECREMENT |
| #undef QT_INTERLOCKED_COMPARE_EXCHANGE |
| #undef QT_INTERLOCKED_EXCHANGE |
| #undef QT_INTERLOCKED_EXCHANGE_ADD |
| #undef QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER |
| #undef QT_INTERLOCKED_EXCHANGE_POINTER |
| #undef QT_INTERLOCKED_EXCHANGE_ADD_POINTER |
| |
| QT_END_NAMESPACE |
| #endif // QATOMIC_MSVC_H |