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/*
* Clock.h
*
* Created on: Jun 17, 2014
* Author: dsalinas
*/
#ifndef CLOCK_H_
#define CLOCK_H_
#include <sys/time.h>
class MClock{
public:
MClock(){
end_called = false;
begin();
}
void begin() const{
end_called = false;
gettimeofday(&startTime, NULL);
}
void end() const{
end_called = true;
gettimeofday(&endTime, NULL);
}
friend std::ostream& operator<< (std::ostream& stream,const MClock& clock){
// if(!clock.end_called) clock.end();
if(!clock.end_called) stream << "end not called";
else{
long totalTime = (clock.endTime.tv_sec - clock.startTime.tv_sec) * 1000000L;
totalTime += (clock.endTime.tv_usec - clock.startTime.tv_usec);
stream << clock.num_seconds() <<"s";
}
return stream;
}
double num_seconds() const{
if(!end_called) end();
long totalTime = (endTime.tv_sec - startTime.tv_sec) * 1000000L;
totalTime += (endTime.tv_usec - startTime.tv_usec);
return (totalTime / 1000L)/(double) 1000;
}
private:
mutable struct timeval startTime, endTime;
mutable bool end_called;
};
#endif /* CLOCK_H_ */
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