/**************************************************************************** | |
** | |
** 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 |