author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the QtCore module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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#include <QtCore/qglobal.h> |
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#include <QtCore/qatomic.h> |
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#ifdef SYMBIAN_E32_ATOMIC_API |
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#include <e32atomics.h> |
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#endif |
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#include <e32debug.h> |
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QT_BEGIN_NAMESPACE |
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// Heap and handle info printer. |
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// This way we can report on heap cells and handles that are really not owned by anything which still exists. |
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// This information can be used to detect whether memory leaks are happening, particularly if these numbers grow as the app is used more. |
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// This code is placed here as it happens to make it the very last static to be destroyed in a Qt app. The |
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// reason assumed is that this file appears before any other file declaring static data in the generated |
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// Symbian MMP file. This particular file was chosen as it is the earliest symbian specific file. |
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struct QSymbianPrintExitInfo |
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{ |
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QSymbianPrintExitInfo() |
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{ |
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RThread().HandleCount(initProcessHandleCount, initThreadHandleCount); |
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initCells = User::CountAllocCells(); |
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} |
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~QSymbianPrintExitInfo() |
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{ |
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RProcess myProc; |
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TFullName fullName = myProc.FileName(); |
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TInt cells = User::CountAllocCells(); |
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TInt processHandleCount=0; |
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TInt threadHandleCount=0; |
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RThread().HandleCount(processHandleCount, threadHandleCount); |
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RDebug::Print(_L("%S exiting with %d allocated cells, %d handles"), |
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&fullName, |
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cells - initCells, |
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(processHandleCount + threadHandleCount) - (initProcessHandleCount + initThreadHandleCount)); |
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} |
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TInt initCells; |
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TInt initProcessHandleCount; |
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TInt initThreadHandleCount; |
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} symbian_printExitInfo; |
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Q_CORE_EXPORT bool QBasicAtomicInt::isReferenceCountingNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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Q_CORE_EXPORT bool QBasicAtomicInt::isTestAndSetNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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Q_CORE_EXPORT bool QBasicAtomicInt::isFetchAndStoreNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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Q_CORE_EXPORT bool QBasicAtomicInt::isFetchAndAddNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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Q_CORE_EXPORT bool QBasicAtomicPointer_isTestAndSetNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndStoreNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndAddNative() |
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{ |
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#if !defined(SYMBIAN_E32_ATOMIC_API) && defined(QT_HAVE_ARMV6) |
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return true; |
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#else |
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return false; |
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#endif |
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} |
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#ifdef SYMBIAN_E32_ATOMIC_API |
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//Symbian's API is SMP-safe when using SMP kernel, and cheap when using uniprocessor kernel |
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//generate compiler error if casting assumptions are wrong (symbian64?) |
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__ASSERT_COMPILE(sizeof(int) == sizeof(TUint32)); |
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__ASSERT_COMPILE(sizeof(void *) == sizeof(TUint32)); |
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetOrdered(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_ord32(_q_value, |
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reinterpret_cast<TUint32*>(&expectedValue), newValue)); |
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} |
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetRelaxed(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_rlx32(_q_value, |
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reinterpret_cast<TUint32*>(&expectedValue), newValue)); |
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} |
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetAcquire(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_acq32(_q_value, |
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reinterpret_cast<TUint32*>(&expectedValue), newValue)); |
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} |
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetRelease(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_rel32(_q_value, |
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reinterpret_cast<TUint32*>(&expectedValue), newValue)); |
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} |
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|
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *_q_value, int newValue) |
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{ |
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return static_cast<int>(__e32_atomic_swp_ord32(_q_value, newValue)); |
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} |
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|
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreRelaxed(volatile int *_q_value, int newValue) |
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{ |
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return static_cast<int>(__e32_atomic_swp_rlx32(_q_value, newValue)); |
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} |
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreAcquire(volatile int *_q_value, int newValue) |
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{ |
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return static_cast<int>(__e32_atomic_swp_acq32(_q_value, newValue)); |
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} |
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreRelease(volatile int *_q_value, int newValue) |
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{ |
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return static_cast<int>(__e32_atomic_swp_rel32(_q_value, newValue)); |
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} |
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd) |
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{ |
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return static_cast<int>(__e32_atomic_add_ord32(_q_value, valueToAdd)); |
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} |
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddRelaxed(volatile int *_q_value, int valueToAdd) |
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{ |
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return static_cast<int>(__e32_atomic_add_rlx32(_q_value, valueToAdd)); |
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} |
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddAcquire(volatile int *_q_value, int valueToAdd) |
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{ |
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return static_cast<int>(__e32_atomic_add_acq32(_q_value, valueToAdd)); |
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} |
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|
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddRelease(volatile int *_q_value, int valueToAdd) |
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{ |
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return static_cast<int>(__e32_atomic_add_rel32(_q_value, valueToAdd)); |
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} |
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_ord_ptr(_q_value, |
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&expectedValue, |
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newValue)); |
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} |
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetRelaxed(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_rlx_ptr(_q_value, |
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&expectedValue, |
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newValue)); |
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} |
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetAcquire(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_acq_ptr(_q_value, |
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&expectedValue, |
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newValue)); |
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} |
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetRelease(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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return static_cast<bool>(__e32_atomic_cas_rel_ptr(_q_value, |
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&expectedValue, |
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newValue)); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *_q_value, void *newValue) |
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{ |
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return __e32_atomic_swp_ord_ptr(_q_value, newValue); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndStoreRelaxed(void * volatile *_q_value, void *newValue) |
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{ |
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return __e32_atomic_swp_rlx_ptr(_q_value, newValue); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndStoreAcquire(void * volatile *_q_value, void *newValue) |
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{ |
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return __e32_atomic_swp_acq_ptr(_q_value, newValue); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndStoreRelease(void * volatile *_q_value, void *newValue) |
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{ |
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return __e32_atomic_swp_rel_ptr(_q_value, newValue); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *_q_value, qptrdiff valueToAdd) |
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{ |
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return __e32_atomic_add_ord_ptr(_q_value, valueToAdd); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndAddRelaxed(void * volatile *_q_value, qptrdiff valueToAdd) |
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{ |
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return __e32_atomic_add_rlx_ptr(_q_value, valueToAdd); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndAddAcquire(void * volatile *_q_value, qptrdiff valueToAdd) |
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{ |
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return __e32_atomic_add_acq_ptr(_q_value, valueToAdd); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndAddRelease(void * volatile *_q_value, qptrdiff valueToAdd) |
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{ |
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return __e32_atomic_add_rel_ptr(_q_value, valueToAdd); |
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} |
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|
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#else |
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//Symbian kernels 9.4 and earlier don't expose a suitable API |
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|
3
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//For ARMv6, the generic atomics are machine coded |
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#ifndef QT_HAVE_ARMV6 |
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|
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class QCriticalSection |
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{ |
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public: |
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QCriticalSection() { fastlock.CreateLocal(); } |
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~QCriticalSection() { fastlock.Close(); } |
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void lock() { fastlock.Wait(); } |
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void unlock() { fastlock.Signal(); } |
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|
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private: |
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RFastLock fastlock; |
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}; |
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|
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QCriticalSection qAtomicCriticalSection; |
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetOrdered(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
3
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bool returnValue = false; |
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qAtomicCriticalSection.lock(); |
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if (*_q_value == expectedValue) { |
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*_q_value = newValue; |
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returnValue = true; |
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} |
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qAtomicCriticalSection.unlock(); |
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return returnValue; |
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} |
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|
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *_q_value, int newValue) |
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{ |
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int returnValue; |
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qAtomicCriticalSection.lock(); |
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returnValue = *_q_value; |
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*_q_value = newValue; |
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qAtomicCriticalSection.unlock(); |
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return returnValue; |
0 | 360 |
} |
361 |
||
3
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd) |
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{ |
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int returnValue; |
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qAtomicCriticalSection.lock(); |
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returnValue = *_q_value; |
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*_q_value += valueToAdd; |
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qAtomicCriticalSection.unlock(); |
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return returnValue; |
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371 |
} |
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372 |
|
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373 |
Q_CORE_EXPORT |
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374 |
bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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bool returnValue = false; |
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qAtomicCriticalSection.lock(); |
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if (*_q_value == expectedValue) { |
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*_q_value = newValue; |
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returnValue = true; |
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} |
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qAtomicCriticalSection.unlock(); |
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return returnValue; |
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} |
0 | 387 |
|
3
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388 |
Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *_q_value, void *newValue) |
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390 |
{ |
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void *returnValue; |
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qAtomicCriticalSection.lock(); |
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returnValue = *_q_value; |
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*_q_value = newValue; |
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qAtomicCriticalSection.unlock(); |
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return returnValue; |
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} |
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|
398 |
|
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399 |
Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *_q_value, qptrdiff valueToAdd) |
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401 |
{ |
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void *returnValue; |
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qAtomicCriticalSection.lock(); |
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returnValue = *_q_value; |
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*_q_value = reinterpret_cast<char *>(returnValue) + valueToAdd; |
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qAtomicCriticalSection.unlock(); |
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return returnValue; |
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408 |
} |
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|
409 |
|
19
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410 |
Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetRelaxed(volatile int *_q_value, int expectedValue, int newValue) |
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412 |
{ |
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return QBasicAtomicInt_testAndSetOrdered(_q_value, expectedValue, newValue); |
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414 |
} |
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|
415 |
|
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetAcquire(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
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return QBasicAtomicInt_testAndSetOrdered(_q_value, expectedValue, newValue); |
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} |
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|
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicInt_testAndSetRelease(volatile int *_q_value, int expectedValue, int newValue) |
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{ |
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return QBasicAtomicInt_testAndSetOrdered(_q_value, expectedValue, newValue); |
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} |
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|
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|
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Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreRelaxed(volatile int *_q_value, int newValue) |
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{ |
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return QBasicAtomicInt_fetchAndStoreOrdered(_q_value, newValue); |
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} |
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|
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|
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434 |
Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreAcquire(volatile int *_q_value, int newValue) |
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{ |
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return QBasicAtomicInt_fetchAndStoreOrdered(_q_value, newValue); |
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} |
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|
439 |
|
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440 |
Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndStoreRelease(volatile int *_q_value, int newValue) |
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442 |
{ |
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443 |
return QBasicAtomicInt_fetchAndStoreOrdered(_q_value, newValue); |
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} |
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|
445 |
|
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446 |
Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddRelaxed(volatile int *_q_value, int valueToAdd) |
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{ |
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return QBasicAtomicInt_fetchAndAddOrdered(_q_value, valueToAdd); |
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} |
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|
451 |
|
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452 |
Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddAcquire(volatile int *_q_value, int valueToAdd) |
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454 |
{ |
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455 |
return QBasicAtomicInt_fetchAndAddOrdered(_q_value, valueToAdd); |
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} |
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|
457 |
|
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458 |
Q_CORE_EXPORT |
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int QBasicAtomicInt_fetchAndAddRelease(volatile int *_q_value, int valueToAdd) |
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460 |
{ |
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461 |
return QBasicAtomicInt_fetchAndAddOrdered(_q_value, valueToAdd); |
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462 |
} |
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|
463 |
|
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464 |
Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetRelaxed(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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468 |
{ |
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469 |
return QBasicAtomicPointer_testAndSetOrdered(_q_value, expectedValue, newValue); |
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470 |
} |
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|
471 |
|
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Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetAcquire(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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return QBasicAtomicPointer_testAndSetOrdered(_q_value, expectedValue, newValue); |
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} |
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|
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Q_CORE_EXPORT |
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bool QBasicAtomicPointer_testAndSetRelease(void * volatile *_q_value, |
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void *expectedValue, |
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void *newValue) |
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{ |
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return QBasicAtomicPointer_testAndSetOrdered(_q_value, expectedValue, newValue); |
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} |
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|
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Q_CORE_EXPORT |
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void *QBasicAtomicPointer_fetchAndStoreRelaxed(void * volatile *_q_value, void *newValue) |
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{ |
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return QBasicAtomicPointer_fetchAndStoreOrdered(_q_value, newValue); |
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} |
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|
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void *QBasicAtomicPointer_fetchAndStoreAcquire(void * volatile *_q_value, void *newValue) |
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{ |
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return QBasicAtomicPointer_fetchAndStoreOrdered(_q_value, newValue); |
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} |
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|
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void *QBasicAtomicPointer_fetchAndStoreRelease(void * volatile *_q_value, void *newValue) |
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{ |
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return QBasicAtomicPointer_fetchAndStoreOrdered(_q_value, newValue); |
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} |
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|
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void *QBasicAtomicPointer_fetchAndAddRelaxed(void * volatile *_q_value, qptrdiff valueToAdd) |
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{ |
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return QBasicAtomicPointer_fetchAndAddOrdered(_q_value, valueToAdd); |
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} |
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|
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void *QBasicAtomicPointer_fetchAndAddAcquire(void * volatile *_q_value, qptrdiff valueToAdd) |
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{ |
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return QBasicAtomicPointer_fetchAndAddOrdered(_q_value, valueToAdd); |
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} |
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|
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void *QBasicAtomicPointer_fetchAndAddRelease(void * volatile *_q_value, qptrdiff valueToAdd) |
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return QBasicAtomicPointer_fetchAndAddOrdered(_q_value, valueToAdd); |
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|
3
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#endif // QT_HAVE_ARMV6 |
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#endif // SYMBIAN_E32_ATOMIC_API |
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QT_END_NAMESPACE |