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<p>This is the verbatim text of the qwaitcondition.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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/****************************************************************************
** $Id: qt/qwaitcondition.h   3.3.8   edited Jan 11 14:38 $
**
** Definition of TQWaitCondition class
**
** Created : 931107
**
** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
**
** This file is part of the tools module of the TQt 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 file LICENSE.GPL 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 TQt 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:
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** or contact the sales department at [email protected].
**
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** Commercial licenses may use this file in accordance with the TQt
** 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 TQWAITCONDITION_H
#define TQWAITCONDITION_H

#ifndef QT_H
#include "qglobal.h"
#endif // QT_H

#if defined(QT_THREAD_SUPPORT)

#include &lt;limits.h&gt;

class TQWaitConditionPrivate;
class TQMutex;

class Q_EXPORT TQWaitCondition
{
public:
    TQWaitCondition();
    virtual ~TQWaitCondition();

    // default argument causes thread to block indefinately
    bool wait( unsigned long time = ULONG_MAX );
    bool wait( TQMutex *mutex, unsigned long time = ULONG_MAX );

    void wakeOne();
    void wakeAll();

private:
    TQWaitConditionPrivate * d;

#if defined(Q_DISABLE_COPY)
    TQWaitCondition( const TQWaitCondition &amp; );
    TQWaitCondition &amp;operator=( const TQWaitCondition &amp; );
#endif
};

#endif

#endif
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