| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Thiago Macieira <thiago@kde.org> |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
| ** Commercial License Usage |
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| ** 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 http://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 2.1 or version 3 as published by the Free |
| ** Software Foundation and appearing in the file LICENSE.LGPLv21 and |
| ** LICENSE.LGPLv3 included in the packaging of this file. Please review the |
| ** following information to ensure the GNU Lesser General Public License |
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| ** |
| ** As a special exception, The Qt Company gives you certain additional |
| ** rights. These rights are described in The Qt Company LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QATOMIC_CXX11_H |
| #define QATOMIC_CXX11_H |
| |
| #include <QtCore/qgenericatomic.h> |
| #include <atomic> |
| |
| 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_SOMETIMES_NATIVE |
| #define Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE |
| |
| #define Q_ATOMIC_INT32_IS_SUPPORTED |
| #define Q_ATOMIC_INT32_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_INT32_TEST_AND_SET_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_INT32_FETCH_AND_STORE_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_INT32_FETCH_AND_ADD_IS_SOMETIMES_NATIVE |
| |
| #define Q_ATOMIC_POINTER_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_SOMETIMES_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_SOMETIMES_NATIVE |
| |
| template<> struct QAtomicOpsSupport<1> { enum { IsSupported = 1 }; }; |
| template<> struct QAtomicOpsSupport<2> { enum { IsSupported = 1 }; }; |
| template<> struct QAtomicOpsSupport<8> { enum { IsSupported = 1 }; }; |
| |
| #define Q_ATOMIC_INT8_IS_SUPPORTED |
| #define Q_ATOMIC_INT8_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT8_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT8_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT8_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| |
| #define Q_ATOMIC_INT16_IS_SUPPORTED |
| #define Q_ATOMIC_INT16_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT16_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT16_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT16_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| |
| #define Q_ATOMIC_INT64_IS_SUPPORTED |
| #define Q_ATOMIC_INT64_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT64_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT64_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT64_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| |
| template <typename X> struct QAtomicOps |
| { |
| typedef std::atomic<X> Type; |
| |
| template <typename T> static inline |
| T load(const std::atomic<T> &_q_value) Q_DECL_NOTHROW |
| { |
| return _q_value.load(std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T load(const volatile std::atomic<T> &_q_value) Q_DECL_NOTHROW |
| { |
| return _q_value.load(std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T loadAcquire(const std::atomic<T> &_q_value) Q_DECL_NOTHROW |
| { |
| return _q_value.load(std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| T loadAcquire(const volatile std::atomic<T> &_q_value) Q_DECL_NOTHROW |
| { |
| return _q_value.load(std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| void store(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW |
| { |
| _q_value.store(newValue, std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| void storeRelease(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW |
| { |
| _q_value.store(newValue, std::memory_order_release); |
| } |
| |
| static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW { return true; } |
| static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW { return false; } |
| template <typename T> |
| static inline bool ref(std::atomic<T> &_q_value) |
| { |
| return ++_q_value != 0; |
| } |
| |
| template <typename T> |
| static inline bool deref(std::atomic<T> &_q_value) Q_DECL_NOTHROW |
| { |
| return --_q_value != 0; |
| } |
| |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; } |
| |
| template <typename T> |
| static bool testAndSetRelaxed(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = 0) Q_DECL_NOTHROW |
| { |
| bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_relaxed); |
| if (currentValue) |
| *currentValue = expectedValue; |
| return tmp; |
| } |
| |
| template <typename T> |
| static bool testAndSetAcquire(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = 0) Q_DECL_NOTHROW |
| { |
| bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_acquire); |
| if (currentValue) |
| *currentValue = expectedValue; |
| return tmp; |
| } |
| |
| template <typename T> |
| static bool testAndSetRelease(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = 0) Q_DECL_NOTHROW |
| { |
| bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_release); |
| if (currentValue) |
| *currentValue = expectedValue; |
| return tmp; |
| } |
| |
| template <typename T> |
| static bool testAndSetOrdered(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = 0) Q_DECL_NOTHROW |
| { |
| bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_acq_rel); |
| if (currentValue) |
| *currentValue = expectedValue; |
| return tmp; |
| } |
| |
| static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return false; } |
| |
| template <typename T> |
| static T fetchAndStoreRelaxed(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW |
| { |
| return _q_value.exchange(newValue, std::memory_order_relaxed); |
| } |
| |
| template <typename T> |
| static T fetchAndStoreAcquire(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW |
| { |
| return _q_value.exchange(newValue, std::memory_order_acquire); |
| } |
| |
| template <typename T> |
| static T fetchAndStoreRelease(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW |
| { |
| return _q_value.exchange(newValue, std::memory_order_release); |
| } |
| |
| template <typename T> |
| static T fetchAndStoreOrdered(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW |
| { |
| return _q_value.exchange(newValue, std::memory_order_acq_rel); |
| } |
| |
| static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return false; } |
| static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return false; } |
| |
| template <typename T> static inline |
| T fetchAndAddRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_add(valueToAdd, std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAddAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_add(valueToAdd, std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAddRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_add(valueToAdd, std::memory_order_release); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAddOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_add(valueToAdd, std::memory_order_acq_rel); |
| } |
| |
| template <typename T> static inline |
| T fetchAndSubRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_sub(valueToAdd, std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T fetchAndSubAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_sub(valueToAdd, std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| T fetchAndSubRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_sub(valueToAdd, std::memory_order_release); |
| } |
| |
| template <typename T> static inline |
| T fetchAndSubOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_sub(valueToAdd, std::memory_order_acq_rel); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAndRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_and(valueToAdd, std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAndAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_and(valueToAdd, std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAndRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_and(valueToAdd, std::memory_order_release); |
| } |
| |
| template <typename T> static inline |
| T fetchAndAndOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_and(valueToAdd, std::memory_order_acq_rel); |
| } |
| |
| template <typename T> static inline |
| T fetchAndOrRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_or(valueToAdd, std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T fetchAndOrAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_or(valueToAdd, std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| T fetchAndOrRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_or(valueToAdd, std::memory_order_release); |
| } |
| |
| template <typename T> static inline |
| T fetchAndOrOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_or(valueToAdd, std::memory_order_acq_rel); |
| } |
| |
| template <typename T> static inline |
| T fetchAndXorRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_xor(valueToAdd, std::memory_order_relaxed); |
| } |
| |
| template <typename T> static inline |
| T fetchAndXorAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_xor(valueToAdd, std::memory_order_acquire); |
| } |
| |
| template <typename T> static inline |
| T fetchAndXorRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_xor(valueToAdd, std::memory_order_release); |
| } |
| |
| template <typename T> static inline |
| T fetchAndXorOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW |
| { |
| return _q_value.fetch_xor(valueToAdd, std::memory_order_acq_rel); |
| } |
| }; |
| |
| #ifdef ATOMIC_VAR_INIT |
| # define Q_BASIC_ATOMIC_INITIALIZER(a) { ATOMIC_VAR_INIT(a) } |
| #else |
| # define Q_BASIC_ATOMIC_INITIALIZER(a) { {a} } |
| #endif |
| |
| QT_END_NAMESPACE |
| |
| #endif // QATOMIC_CXX0X_H |