| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
| ** appearing in the file LICENSE.LGPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU Lesser |
| ** General Public License version 2.1 requirements will be met: |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QATOMIC_WINDOWS_H |
| #define QATOMIC_WINDOWS_H |
| |
| #ifndef Q_CC_MSVC |
| |
| // Mingw and other GCC platforms get inline assembly |
| |
| # ifdef __i386__ |
| # include "QtCore/qatomic_i386.h" |
| # else |
| # include "QtCore/qatomic_x86_64.h" |
| # endif |
| |
| #else // Q_CC_MSVC |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #ifndef Q_OS_WINCE |
| |
| // use compiler intrinsics for all atomic functions |
| # define QT_INTERLOCKED_PREFIX _ |
| # define QT_INTERLOCKED_PROTOTYPE __cdecl |
| # define QT_INTERLOCKED_DECLARE_PROTOTYPES |
| # define QT_INTERLOCKED_INTRINSIC |
| |
| #else // Q_OS_WINCE |
| |
| # if _WIN32_WCE < 0x600 && defined(_X86_) |
| // For X86 Windows CE, include winbase.h to catch inline functions which |
| // override the regular definitions inside of coredll.dll. |
| // Though one could use the original version of Increment/Decrement, others are |
| // not exported at all. |
| # include <winbase.h> |
| |
| // It's safer to remove the volatile and let the compiler add it as needed. |
| # define QT_INTERLOCKED_NO_VOLATILE |
| |
| # else // _WIN32_WCE >= 0x600 || !_X86_ |
| |
| # define QT_INTERLOCKED_PROTOTYPE __cdecl |
| # define QT_INTERLOCKED_DECLARE_PROTOTYPES |
| |
| # if _WIN32_WCE >= 0x600 |
| # if defined(_X86_) |
| # define QT_INTERLOCKED_PREFIX _ |
| # define QT_INTERLOCKED_INTRINSIC |
| # endif |
| # else |
| # define QT_INTERLOCKED_NO_VOLATILE |
| # endif |
| |
| # endif // _WIN32_WCE >= 0x600 || !_X86_ |
| |
| #endif // Q_OS_WINCE |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // 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) |
| |
| #ifdef QT_INTERLOCKED_NO_VOLATILE |
| # define QT_INTERLOCKED_VOLATILE |
| # define QT_INTERLOCKED_REMOVE_VOLATILE(a) qt_interlocked_remove_volatile(a) |
| #else |
| # define QT_INTERLOCKED_VOLATILE volatile |
| # define QT_INTERLOCKED_REMOVE_VOLATILE(a) a |
| #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(Q_OS_WINCE) && !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 |
| |
| } |
| |
| #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(Q_OS_WINCE) && !defined(_M_IX86) |
| # pragma intrinsic (_InterlockedCompareExchangePointer) |
| # pragma intrinsic (_InterlockedExchangePointer) |
| # pragma intrinsic (_InterlockedExchangeAdd64) |
| # endif |
| |
| #endif // QT_INTERLOCKED_INTRINSIC |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // Interlocked* replacement macros |
| |
| #define QT_INTERLOCKED_INCREMENT(value) \ |
| QT_INTERLOCKED_FUNCTION( Increment )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ) ) |
| |
| #define QT_INTERLOCKED_DECREMENT(value) \ |
| QT_INTERLOCKED_FUNCTION( Decrement )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ) ) |
| |
| #define QT_INTERLOCKED_COMPARE_EXCHANGE(value, newValue, expectedValue) \ |
| QT_INTERLOCKED_FUNCTION( CompareExchange )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ), \ |
| newValue, \ |
| expectedValue ) |
| |
| #define QT_INTERLOCKED_EXCHANGE(value, newValue) \ |
| QT_INTERLOCKED_FUNCTION( Exchange )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ), \ |
| newValue ) |
| |
| #define QT_INTERLOCKED_EXCHANGE_ADD(value, valueToAdd) \ |
| QT_INTERLOCKED_FUNCTION( ExchangeAdd )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ), \ |
| valueToAdd ) |
| |
| #if defined(Q_OS_WINCE) || defined(__i386__) || defined(_M_IX86) |
| |
| # define QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(value, newValue, expectedValue) \ |
| reinterpret_cast<void *>( \ |
| QT_INTERLOCKED_FUNCTION( CompareExchange )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ## _integral ), \ |
| (long)( newValue ), \ |
| (long)( expectedValue ) )) |
| |
| # define QT_INTERLOCKED_EXCHANGE_POINTER(value, newValue) \ |
| QT_INTERLOCKED_FUNCTION( Exchange )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ## _integral ), \ |
| (quintptr)( newValue ) ) |
| |
| # define QT_INTERLOCKED_EXCHANGE_ADD_POINTER(value, valueToAdd) \ |
| QT_INTERLOCKED_FUNCTION( ExchangeAdd )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ## _integral ), \ |
| valueToAdd ) |
| |
| #else // !defined(Q_OS_WINCE) && !defined(__i386__) && !defined(_M_IX86) |
| |
| # define QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(value, newValue, expectedValue) \ |
| QT_INTERLOCKED_FUNCTION( CompareExchangePointer )( \ |
| reinterpret_cast<void * QT_INTERLOCKED_VOLATILE *>( QT_INTERLOCKED_REMOVE_VOLATILE( value ) ), \ |
| newValue, \ |
| expectedValue ) |
| |
| # define QT_INTERLOCKED_EXCHANGE_POINTER(value, newValue) \ |
| QT_INTERLOCKED_FUNCTION( ExchangePointer )( \ |
| reinterpret_cast<void * QT_INTERLOCKED_VOLATILE *>( QT_INTERLOCKED_REMOVE_VOLATILE( value ) ), \ |
| newValue ) |
| |
| # define QT_INTERLOCKED_EXCHANGE_ADD_POINTER(value, valueToAdd) \ |
| QT_INTERLOCKED_FUNCTION( ExchangeAdd64 )( \ |
| QT_INTERLOCKED_REMOVE_VOLATILE( value ## _integral ), \ |
| valueToAdd ) |
| |
| #endif // !defined(Q_OS_WINCE) && !defined(__i386__) && !defined(_M_IX86) |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| QT_BEGIN_HEADER |
| |
| QT_BEGIN_NAMESPACE |
| |
| #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE |
| |
| inline bool QBasicAtomicInt::isReferenceCountingNative() |
| { return true; } |
| inline bool QBasicAtomicInt::isReferenceCountingWaitFree() |
| { return true; } |
| |
| #define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE |
| |
| inline bool QBasicAtomicInt::isTestAndSetNative() |
| { return true; } |
| inline bool QBasicAtomicInt::isTestAndSetWaitFree() |
| { return true; } |
| |
| #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| inline bool QBasicAtomicInt::isFetchAndStoreNative() |
| { return true; } |
| inline bool QBasicAtomicInt::isFetchAndStoreWaitFree() |
| { return true; } |
| |
| #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE |
| |
| inline bool QBasicAtomicInt::isFetchAndAddNative() |
| { return true; } |
| inline bool QBasicAtomicInt::isFetchAndAddWaitFree() |
| { return true; } |
| |
| #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative() |
| { return true; } |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree() |
| { return true; } |
| |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative() |
| { return true; } |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree() |
| { return true; } |
| |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE |
| #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_WAIT_FREE |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative() |
| { return true; } |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree() |
| { return true; } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #ifdef QT_INTERLOCKED_NO_VOLATILE |
| template <class T> |
| Q_INLINE_TEMPLATE T *qt_interlocked_remove_volatile(T volatile *t) |
| { |
| return const_cast<T *>(t); |
| } |
| #endif // !QT_INTERLOCKED_NO_VOLATILE |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| inline bool QBasicAtomicInt::ref() |
| { |
| return QT_INTERLOCKED_INCREMENT(&_q_value) != 0; |
| } |
| |
| inline bool QBasicAtomicInt::deref() |
| { |
| return QT_INTERLOCKED_DECREMENT(&_q_value) != 0; |
| } |
| |
| inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) |
| { |
| return QT_INTERLOCKED_COMPARE_EXCHANGE(&_q_value, newValue, expectedValue) |
| == expectedValue; |
| } |
| |
| inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) |
| { |
| return QT_INTERLOCKED_EXCHANGE(&_q_value, newValue); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) |
| { |
| return QT_INTERLOCKED_EXCHANGE_ADD(&_q_value, valueToAdd); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) |
| { |
| return QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue) |
| == expectedValue; |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T* newValue) |
| { |
| return reinterpret_cast<T *>( |
| QT_INTERLOCKED_EXCHANGE_POINTER(&_q_value, newValue)); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) |
| { |
| return reinterpret_cast<T *>( |
| QT_INTERLOCKED_EXCHANGE_ADD_POINTER(&_q_value, valueToAdd * sizeof(T))); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue) |
| { |
| return testAndSetOrdered(expectedValue, newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue) |
| { |
| return fetchAndStoreOrdered(newValue); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| template <typename T> |
| Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd) |
| { |
| return fetchAndAddOrdered(valueToAdd); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // Cleanup |
| |
| #undef QT_INTERLOCKED_CONCAT_I |
| #undef QT_INTERLOCKED_CONCAT |
| #undef QT_INTERLOCKED_FUNCTION |
| #undef QT_INTERLOCKED_PREFIX |
| |
| #undef QT_INTERLOCKED_NO_VOLATILE |
| #undef QT_INTERLOCKED_VOLATILE |
| #undef QT_INTERLOCKED_REMOVE_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 |
| |
| QT_END_HEADER |
| |
| #endif // Q_CC_MSVC |
| |
| #endif // QATOMIC_WINDOWS_H |