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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (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 http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <windows.h>
+
+#include "qmutex.h"
+#include "qmutex_p.h"
+
+QMutexPrivate::QMutexPrivate()
+ : contenders(0)
+{
+ event = CreateEvent(0, FALSE, FALSE, 0);
+ if (!event)
+ qWarning("QMutexPrivate::QMutexPrivate: Cannot create event");
+}
+
+QMutexPrivate::~QMutexPrivate()
+{
+ CloseHandle(event);
+}
+
+void QMutexPrivate::wait()
+{
+ WaitForSingleObject(event, INFINITE);
+}
+
+void QMutexPrivate::wakeUp()
+{
+ SetEvent(event);
+}
+
+//----------------------------------------------------------------------
+
+class QCriticalSection
+{
+ public:
+ QCriticalSection() { InitializeCriticalSection(&section); }
+ ~QCriticalSection() { DeleteCriticalSection(&section); }
+ void lock() { EnterCriticalSection(&section); }
+ void unlock() { LeaveCriticalSection(&section); }
+
+ private:
+ CRITICAL_SECTION section;
+};
+
+static QCriticalSection qAtomicCriticalSection;
+
+bool QAtomicInt::testAndSet(int expectedValue,int newValue)
+{
+ bool returnValue = false;
+ qAtomicCriticalSection.lock();
+ if (m_value == expectedValue)
+ {
+ m_value = newValue;
+ returnValue = true;
+ }
+ qAtomicCriticalSection.unlock();
+ return returnValue;
+}
+
+int QAtomicInt::fetchAndAdd(int valueToAdd)
+{
+ int returnValue;
+ qAtomicCriticalSection.lock();
+ returnValue = m_value;
+ m_value += valueToAdd;
+ qAtomicCriticalSection.unlock();
+ return returnValue;
+}
+