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diff --git a/src/tools/qmutex.h b/src/tools/qmutex.h
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+/****************************************************************************
+**
+** Definition of QMutex class
+**
+** Created : 931107
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the tools module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at [email protected].
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file.  Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QMUTEX_H
+#define QMUTEX_H
+
+#ifndef QT_H
+#include "qglobal.h"
+#endif // QT_H
+
+#if defined(QT_THREAD_SUPPORT)
+
+class QMutexPrivate;
+
+const int Q_MUTEX_NORMAL = 0;
+const int Q_MUTEX_RECURSIVE = 1;
+
+class Q_EXPORT QMutex
+{
+    friend class QThread;
+    friend class QWaitCondition;
+    friend class QWaitConditionPrivate;
+
+public:
+    QMutex(bool recursive = FALSE);
+    virtual ~QMutex();
+
+    void lock();
+    void unlock();
+    bool locked();
+    bool tryLock();
+
+private:
+    QMutexPrivate * d;
+
+#if defined(Q_DISABLE_COPY)
+    QMutex( const QMutex & );
+    QMutex &operator=( const QMutex & );
+#endif
+};
+
+class Q_EXPORT QMutexLocker
+{
+public:
+    QMutexLocker( QMutex * );
+    ~QMutexLocker();
+
+    QMutex *mutex() const;
+
+private:
+    QMutex *mtx;
+
+#if defined(Q_DISABLE_COPY)
+    QMutexLocker( const QMutexLocker & );
+    QMutexLocker &operator=( const QMutexLocker & );
+#endif
+};
+
+inline QMutexLocker::QMutexLocker( QMutex *m )
+    : mtx( m )
+{
+    if ( mtx ) mtx->lock();
+}
+
+inline QMutexLocker::~QMutexLocker()
+{
+    if ( mtx ) mtx->unlock();
+}
+
+inline QMutex *QMutexLocker::mutex() const
+{
+    return mtx;
+}
+
+#endif
+
+#endif