From 90493e16b8dd9edc6176d0abc255422edbbb05c3 Mon Sep 17 00:00:00 2001 From: Thiago Macieira Date: Sun, 18 Mar 2018 09:38:00 -0700 Subject: Atomics: remove qatomic_msvc.h No longer needed. The comment about missing constexpr support is incorrect: MSVC 2015 does have constexpr issues, but they don't affect our use of std::atomic. Change-Id: Ie9d9215342d449c48a11fffd151d11208137f00d Reviewed-by: Lars Knoll --- src/corelib/arch/arch.pri | 2 - src/corelib/arch/qatomic_msvc.h | 485 ---------------------------------------- 2 files changed, 487 deletions(-) delete mode 100644 src/corelib/arch/qatomic_msvc.h (limited to 'src/corelib/arch') diff --git a/src/corelib/arch/arch.pri b/src/corelib/arch/arch.pri index e490617c6b..c9e54d1972 100644 --- a/src/corelib/arch/arch.pri +++ b/src/corelib/arch/arch.pri @@ -1,5 +1,3 @@ -win32:HEADERS += arch/qatomic_msvc.h - HEADERS += \ arch/qatomic_bootstrap.h \ arch/qatomic_cxx11.h diff --git a/src/corelib/arch/qatomic_msvc.h b/src/corelib/arch/qatomic_msvc.h deleted file mode 100644 index 5eae2bdc48..0000000000 --- a/src/corelib/arch/qatomic_msvc.h +++ /dev/null @@ -1,485 +0,0 @@ -/**************************************************************************** -** -** 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 -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** 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 - -//////////////////////////////////////////////////////////////////////////////////////////////////// - -// 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( \ - QT_INTERLOCKED_FUNCTION(CompareExchange)( \ - reinterpret_cast(value), \ - long(newValue), \ - long(expectedValue))) - -# define QT_INTERLOCKED_EXCHANGE_POINTER(value, newValue) \ - QT_INTERLOCKED_FUNCTION(Exchange)( \ - reinterpret_cast(value), \ - long(newValue)) - -# define QT_INTERLOCKED_EXCHANGE_ADD_POINTER(value, valueToAdd) \ - QT_INTERLOCKED_FUNCTION(ExchangeAdd)( \ - reinterpret_cast(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(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 struct QAtomicWindowsType { typedef typename QIntegerForSize::Signed Type; }; -template <> struct QAtomicWindowsType<4> { typedef long Type; }; - - -template struct QAtomicOpsBySize : QGenericAtomicOps > -{ - static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW { return true; } - template static bool ref(T &_q_value) Q_DECL_NOTHROW; - template static bool deref(T &_q_value) Q_DECL_NOTHROW; - - static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return true; } - template 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; - - static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return true; } - template static T fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW; - - static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return true; } - template static T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType::AdditiveT valueToAdd) Q_DECL_NOTHROW; - -private: - typedef typename QAtomicWindowsType::Type Type; - template static inline Type *atomic(T *t) - { Q_STATIC_ASSERT(sizeof(T) == sizeof(Type)); return reinterpret_cast(t); } - template static inline Type value(T t) - { Q_STATIC_ASSERT(sizeof(T) == sizeof(Type)); return Type(t); } -}; - -template -struct QAtomicOps : QAtomicOpsBySize -{ - typedef T Type; -}; - -template<> template -inline bool QAtomicOpsBySize<4>::ref(T &_q_value) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Increment)(atomic(&_q_value)) != 0; -} - -template<> template -inline bool QAtomicOpsBySize<4>::deref(T &_q_value) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Decrement)(atomic(&_q_value)) != 0; -} - -template<> template -inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(CompareExchange)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue); -} - -template<> template -inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW -{ - *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange)(atomic(&_q_value), newValue, expectedValue)); - return *currentValue == expectedValue; -} - -template<> template -inline T QAtomicOpsBySize<4>::fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Exchange)(atomic(&_q_value), value(newValue)); -} - -template<> template -inline T QAtomicOpsBySize<4>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType::AdditiveT valueToAdd) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(ExchangeAdd)(atomic(&_q_value), value(valueToAdd * QAtomicAdditiveType::AddScale)); -} - -#ifdef Q_ATOMIC_INT16_IS_SUPPORTED -template<> template -inline bool QAtomicOpsBySize<2>::ref(T &_q_value) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Increment16)(atomic(&_q_value)) != 0; -} - -template<> template -inline bool QAtomicOpsBySize<2>::deref(T &_q_value) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Decrement16)(atomic(&_q_value)) != 0; -} - -template<> template -inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(CompareExchange16)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue); -} - -template<> template -inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW -{ - *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange16)(atomic(&_q_value), newValue, expectedValue)); - return *currentValue == expectedValue; -} - -template<> template -inline T QAtomicOpsBySize<2>::fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Exchange16)(atomic(&_q_value), value(newValue)); -} - -template<> template -inline T QAtomicOpsBySize<2>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType::AdditiveT valueToAdd) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(ExchangeAdd16)(atomic(&_q_value), value(valueToAdd * QAtomicAdditiveType::AddScale)); -} -#endif - -#ifdef Q_ATOMIC_INT64_IS_SUPPORTED -template<> template -inline bool QAtomicOpsBySize<8>::ref(T &_q_value) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Increment64)(atomic(&_q_value)) != 0; -} - -template<> template -inline bool QAtomicOpsBySize<8>::deref(T &_q_value) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Decrement64)(atomic(&_q_value)) != 0; -} - -template<> template -inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(CompareExchange64)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue); -} - -template<> template -inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW -{ - *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange64)(atomic(&_q_value), newValue, expectedValue)); - return *currentValue == expectedValue; -} - -template<> template -inline T QAtomicOpsBySize<8>::fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(Exchange64)(atomic(&_q_value), value(newValue)); -} - -template<> template -inline T QAtomicOpsBySize<8>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType::AdditiveT valueToAdd) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_FUNCTION(ExchangeAdd64)(atomic(&_q_value), value(valueToAdd * QAtomicAdditiveType::AddScale)); -} -#endif - -// Specialization for pointer types, since we have Interlocked*Pointer() variants in some configurations -template -struct QAtomicOps : QGenericAtomicOps > -{ - typedef T *Type; - - static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return true; } - static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) Q_DECL_NOTHROW; - static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) Q_DECL_NOTHROW; - - static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return true; } - static T *fetchAndStoreRelaxed(T *&_q_value, T *newValue) Q_DECL_NOTHROW; - - static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return true; } - static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return true; } - static T *fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) Q_DECL_NOTHROW; -}; - -template -inline bool QAtomicOps::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) Q_DECL_NOTHROW -{ - return QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue) == expectedValue; -} - -template -inline bool QAtomicOps::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) Q_DECL_NOTHROW -{ - *currentValue = reinterpret_cast(QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue)); - return *currentValue == expectedValue; -} - -template -inline T *QAtomicOps::fetchAndStoreRelaxed(T *&_q_value, T *newValue) Q_DECL_NOTHROW -{ - return reinterpret_cast(QT_INTERLOCKED_EXCHANGE_POINTER(&_q_value, newValue)); -} - -template -inline T *QAtomicOps::fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) Q_DECL_NOTHROW -{ - return reinterpret_cast(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 -- cgit v1.2.3