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Diffstat (limited to 'src/corelib/thread/qmutex_win.cpp')
| -rw-r--r-- | src/corelib/thread/qmutex_win.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/corelib/thread/qmutex_win.cpp b/src/corelib/thread/qmutex_win.cpp new file mode 100644 index 0000000000..a73815dc7c --- /dev/null +++ b/src/corelib/thread/qmutex_win.cpp @@ -0,0 +1,81 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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 are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <windows.h> + +#include "qmutex.h" +#include <qatomic.h> +#include "qmutex_p.h" + +QT_BEGIN_NAMESPACE + +QMutexPrivate::QMutexPrivate(QMutex::RecursionMode mode) + : recursive(mode == QMutex::Recursive), contenders(0), lastSpinCount(0), owner(0), count(0) +{ + if (QSysInfo::WindowsVersion == 0) { + // mutex was created before initializing WindowsVersion. this + // can happen when creating the resource file engine handler, + // for example. try again with just the A version +#ifdef Q_OS_WINCE + event = CreateEventW(0, FALSE, FALSE, 0); +#else + event = CreateEventA(0, FALSE, FALSE, 0); +#endif + } else { + event = QT_WA_INLINE(CreateEventW(0, FALSE, FALSE, 0), + CreateEventA(0, FALSE, FALSE, 0)); + } + if (!event) + qWarning("QMutexPrivate::QMutexPrivate: Cannot create event"); +} + +QMutexPrivate::~QMutexPrivate() +{ CloseHandle(event); } + +bool QMutexPrivate::wait(int timeout) +{ + return WaitForSingleObject(event, timeout < 0 ? INFINITE : timeout) == WAIT_OBJECT_0; +} + +void QMutexPrivate::wakeUp() +{ SetEvent(event); } + +QT_END_NAMESPACE |