psemaphore.h

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/*
 *   P::Classes - Portable C++ Application Framework
 *   Copyright (C) 2000-2003  Christian Prochnow <cproch@seculogix.de>
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Lesser General Public
 *   License as published by the Free Software Foundation; either
 *   version 2 of the License, or (at your option) any later version.
 *
 *   This library is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *   Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _psemaphore_h_
#define _psemaphore_h_

#include <pclasses/pexport.h>
#include <pclasses/pexception.h>

namespace P {


class PCORE_EXPORT Semaphore {
  public:

    Semaphore(const char* name = 0, unsigned int initial = 0) throw(SyncError);

    ~Semaphore() throw(SyncError);


    void wait() throw(SyncError);


    bool tryWait() throw(SyncError);

    void post() throw(SyncError);

  private:
    struct sem_handle_t;
    sem_handle_t* m_handle;
};

}

#endif

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