probe.h

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/* *********
*  
*  This file is part of:
*  NePSing, Network Protocol Simulator next generation
*  
*  Copyright (C) 2004  Tommaso Pecorella <tpecorella@mac.com>
*  
*  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 2.1 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 __PROBE_H__
#define __PROBE_H__

#include <string>
#include <exception>


// **************************************************************************
//
// WARNING: do NOT use this class directly.
//
// It's only purpose is to be a base class for all the "real" probes
//
// **************************************************************************

using namespace std ;

#define GLOBALPROBE true
#define LOCALPROBE false

class ProbeManager;

//
class ProbeException : public exception
{
  string Msg;
 public:
  ProbeException(const string &aMsg)
    : Msg(aMsg)
  {};
  virtual ~ProbeException() throw(){};

  virtual const char* what() const throw()
  {
    return (string(exception::what()) + " " + Msg).c_str();
  };
};

class Probe
{
 protected:
  static ProbeManager* theProbeManager;
  bool isGlobal;

 public:

  string theName;
  string theRealName;
  bool Append;
  

  Probe( string _theName, 
         bool _isGlobal = LOCALPROBE  
    );
  ~Probe();

  static void set_ProbeManager( ProbeManager* _theProbeManager);

  virtual void Reset( void );
  virtual void Zap( double ) {};

  virtual void Observe( double value ) = 0;
  virtual void WriteToFile( double time 
                            ) = 0;
};


#endif

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