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Diffstat (limited to 'qtinterface/qt4/Qt/qatomic_windows.h')
| -rw-r--r-- | qtinterface/qt4/Qt/qatomic_windows.h | 496 |
1 files changed, 496 insertions, 0 deletions
diff --git a/qtinterface/qt4/Qt/qatomic_windows.h b/qtinterface/qt4/Qt/qatomic_windows.h new file mode 100644 index 0000000..c56fb40 --- /dev/null +++ b/qtinterface/qt4/Qt/qatomic_windows.h @@ -0,0 +1,496 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** 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 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 |