sc_semaphore_if.h

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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
  Accellera licenses this file to you under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with the
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/*****************************************************************************

  sc_semaphore_if.h -- The sc_semaphore_if interface class.
*/
#ifndef SC_SEMAPHORE_IF_H
#define SC_SEMAPHORE_IF_H

#include "sysc/communication/sc_interface.h"

namespace sc_core {

class SC_API sc_semaphore_if
: virtual public sc_interface
{
public:

    // the classical operations: wait(), trywait(), and post()

    // lock (take) the semaphore, block if not available
    virtual int wait() = 0;

    // lock (take) the semaphore, return -1 if not available
    virtual int trywait() = 0;

    // unlock (give) the semaphore
    virtual int post() = 0;

    // get the value of the semphore
    virtual int get_value() const = 0;

protected:

    // constructor

    sc_semaphore_if()
        {}

private:

    // disabled
    sc_semaphore_if( const sc_semaphore_if& );
    sc_semaphore_if& operator = ( const sc_semaphore_if& );
};

} // namespace sc_core

//$Log: sc_semaphore_if.h,v $
//Revision 1.3  2011/08/26 20:45:42  acg
// Andy Goodrich: moved the modification log to the end of the file to
// eliminate source line number skew when check-ins are done.
//
//Revision 1.2  2011/02/18 20:23:45  acg
// Andy Goodrich: Copyright update.
//
//Revision 1.1.1.1  2006/12/15 20:20:04  acg
//SystemC 2.3
//
//Revision 1.2  2006/01/03 23:18:26  acg
//Changed copyright to include 2006.
//
//Revision 1.1.1.1  2005/12/19 23:16:43  acg
//First check in of SystemC 2.1 into its own archive.
//
//Revision 1.8  2005/06/10 22:43:55  acg
//Added CVS change log annotation.
//

#endif

// Taf!