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# qsemaphore.h

This is the verbatim text of the qsemaphore.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id$
    **
    ** Definition of QSemaphore class
    **
    ** Created : 931107
    **
    ** Copyright (C) 1992-2002 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the tools module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** 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
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
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    **********************************************************************/

    #ifndef QSEMAPHORE_H
    #define QSEMAPHORE_H

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

    #if defined(QT_THREAD_SUPPORT)

    class QSemaphorePrivate;

    class Q_EXPORT QSemaphore
    {
    public:
        QSemaphore( int );
        virtual ~QSemaphore();

        int available() const;
        int total() const;

        // postfix operators
        int operator++(int);
        int operator--(int);

        int operator+=(int);
        int operator-=(int);

        bool tryAccess(int);

    private:
        QSemaphorePrivate *d;

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

    #endif

    #endif