probejitter.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 __PROBEJITTER_H__
#define __PROBEJITTER_H__

#include "probe.h"


// **************************************************************************
// 
// Output values:
// Time   Standard_Deviation (Sigma)  Mean   Quadratic_Mean    Sigma^2 (Quadratic_Mean-Mean^2)
// 
// **************************************************************************


class ProbeJitter : public Probe
{
 private:
  unsigned long int N;
  double Sum;
  double SumSq;
  
  double oldVal;
  bool initialized;
  
 public:
  ProbeJitter( string _theName, bool _isGlobal = false );
  
  virtual void Reset( void );
  virtual void Zap( double );
  
  virtual void Observe( double value );
  virtual void WriteToFile( double time );
};


#endif

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