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Diffstat (limited to 'qtinterface/qt4/Qt/qreadwritelock.h')
| -rw-r--r-- | qtinterface/qt4/Qt/qreadwritelock.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/qtinterface/qt4/Qt/qreadwritelock.h b/qtinterface/qt4/Qt/qreadwritelock.h deleted file mode 100644 index bc01ad5..0000000 --- a/qtinterface/qt4/Qt/qreadwritelock.h +++ /dev/null @@ -1,245 +0,0 @@ -/**************************************************************************** -** -** 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 QREADWRITELOCK_H -#define QREADWRITELOCK_H - -#include <QtCore/qglobal.h> -#include <limits.h> // ### Qt 5: remove - -QT_BEGIN_HEADER - -QT_BEGIN_NAMESPACE - -QT_MODULE(Core) - -#ifndef QT_NO_THREAD - -struct QReadWriteLockPrivate; - -class Q_CORE_EXPORT QReadWriteLock -{ -public: - enum RecursionMode { NonRecursive, Recursive }; - - QReadWriteLock(); // ### Qt 5: merge with below - QReadWriteLock(RecursionMode recursionMode); - ~QReadWriteLock(); - - void lockForRead(); - bool tryLockForRead(); - bool tryLockForRead(int timeout); - - void lockForWrite(); - bool tryLockForWrite(); - bool tryLockForWrite(int timeout); - - void unlock(); - -private: - Q_DISABLE_COPY(QReadWriteLock) - QReadWriteLockPrivate *d; - - friend class QWaitCondition; -}; - -#if defined(Q_CC_MSVC) -#pragma warning( push ) -#pragma warning( disable : 4312 ) // ignoring the warning from /Wp64 -#endif - -class Q_CORE_EXPORT QReadLocker -{ -public: - inline QReadLocker(QReadWriteLock *readWriteLock); - - inline ~QReadLocker() - { unlock(); } - - inline void unlock() - { - if (q_lock) { - if ((q_val & quintptr(1u)) == quintptr(1u)) { - q_val &= ~quintptr(1u); - q_lock->unlock(); - } - } - } - - inline void relock() - { - if (q_lock) { - if ((q_val & quintptr(1u)) == quintptr(0u)) { - q_lock->lockForRead(); - q_val |= quintptr(1u); - } - } - } - - inline QReadWriteLock *readWriteLock() const - { return reinterpret_cast<QReadWriteLock *>(q_val & ~quintptr(1u)); } - -private: - Q_DISABLE_COPY(QReadLocker) - union { - QReadWriteLock *q_lock; - quintptr q_val; - }; -}; - -inline QReadLocker::QReadLocker(QReadWriteLock *areadWriteLock) - : q_lock(areadWriteLock) -{ - Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0), - "QReadLocker", "QReadWriteLock pointer is misaligned"); - relock(); -} - -class Q_CORE_EXPORT QWriteLocker -{ -public: - inline QWriteLocker(QReadWriteLock *readWriteLock); - - inline ~QWriteLocker() - { unlock(); } - - inline void unlock() - { - if (q_lock) { - if ((q_val & quintptr(1u)) == quintptr(1u)) { - q_val &= ~quintptr(1u); - q_lock->unlock(); - } - } - } - - inline void relock() - { - if (q_lock) { - if ((q_val & quintptr(1u)) == quintptr(0u)) { - q_lock->lockForWrite(); - q_val |= quintptr(1u); - } - } - } - - inline QReadWriteLock *readWriteLock() const - { return reinterpret_cast<QReadWriteLock *>(q_val & ~quintptr(1u)); } - - -private: - Q_DISABLE_COPY(QWriteLocker) - union{ - QReadWriteLock *q_lock; - quintptr q_val; - }; -}; - -inline QWriteLocker::QWriteLocker(QReadWriteLock *areadWriteLock) - : q_lock(areadWriteLock) -{ - Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0), - "QWriteLocker", "QReadWriteLock pointer is misaligned"); - relock(); -} - -#if defined(Q_CC_MSVC) -#pragma warning( pop ) -#endif - -#else // QT_NO_THREAD - -class Q_CORE_EXPORT QReadWriteLock -{ -public: - enum RecursionMode { NonRecursive, Recursive }; - inline explicit QReadWriteLock(RecursionMode = NonRecursive) { } - inline ~QReadWriteLock() { } - - static inline void lockForRead() { } - static inline bool tryLockForRead() { return true; } - static inline bool tryLockForRead(int timeout) { Q_UNUSED(timeout); return true; } - - static inline void lockForWrite() { } - static inline bool tryLockForWrite() { return true; } - static inline bool tryLockForWrite(int timeout) { Q_UNUSED(timeout); return true; } - - static inline void unlock() { } - -private: - Q_DISABLE_COPY(QReadWriteLock) -}; - -class Q_CORE_EXPORT QReadLocker -{ -public: - inline QReadLocker(QReadWriteLock *) { } - inline ~QReadLocker() { } - - static inline void unlock() { } - static inline void relock() { } - static inline QReadWriteLock *readWriteLock() { return 0; } - -private: - Q_DISABLE_COPY(QReadLocker) -}; - -class Q_CORE_EXPORT QWriteLocker -{ -public: - inline explicit QWriteLocker(QReadWriteLock *) { } - inline ~QWriteLocker() { } - - static inline void unlock() { } - static inline void relock() { } - static inline QReadWriteLock *readWriteLock() { return 0; } - -private: - Q_DISABLE_COPY(QWriteLocker) -}; - -#endif // QT_NO_THREAD - -QT_END_NAMESPACE - -QT_END_HEADER - -#endif // QREADWRITELOCK_H |