RealTimer.h

/***************************************************************************
 *
 *   Copyright (C) 2003 by Haydon Knight
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
// psrchive/Util/genutil/RealTimer.h
 
#ifndef __RealTimer_H
#define __RealTimer_H
 
#include <iostream>
#include <sys/time.h>
 
#include "Reference.h"
 
class RealTimer : public Reference::Able {
 public:
 
  RealTimer();
  virtual ~RealTimer();
  const RealTimer& operator += (const RealTimer&);

  void start();

  void stop();

  void lap();

  void reset();

  double get_elapsed() const;

  double get_total() const;
 
  const char* elapsedString ();
 
  static const char* timeString (double time);
 
 private:
  struct timeval time1, time2;
  
  double elapsed;         // the time elapsed between start() and stop() calls
  double total_elapsed;   // cummulative sum over the life of this instance
};
 
std::ostream& operator<< (std::ostream& ostr, const RealTimer& clock);
 
#endif