#ifndef __STATISTICS_H
#define __STATISTICS_H


#include "common.h"

namespace GtpVisibilityPreprocessor {

// --------------------------------------------------------------
// Statistics for search - base class
// --------------------------------------------------------------
class StatisticsBase
{
public:
	
  // return time diff. in s
  static inline double TimeDiff(long time1, long time2) // in s
  {
    const double clk=1.0E-6; // ticks per second
    long t=time2-time1;
		
    return ((t<0)?-t:t)*clk;
  }
	
public:
  long startTime;
  long stopTime;
  
  void Start() {
    startTime = GetTime();
  }

  void Stop() {
    stopTime = GetTime();
  }

  float Time() const {
    return (float)TimeDiff(startTime, stopTime);
  }
};

}

#endif