timer.hpp

#ifndef CMR_TIMER_HPP
#define CMR_TIMER_HPP

#include <chrono>
#include <string>

namespace CMR {

class Timer {
public:
    Timer(); 
    Timer(const std::string &tname); 
    Timer(const std::string &tname,  const Timer *_ratio_timer);

    void start();

    void stop();

    void resume();

    void report(bool show_cpu) const;

private:

    std::string timer_name;

    std::chrono::duration<double> wall_elapsed;

    double cpu_elapsed;

    std::chrono::time_point<std::chrono::system_clock> wall_start;

    std::chrono::time_point<std::chrono::system_clock> wall_end;

    double cpu_start;

    double cpu_end;

    const Timer *ratio_timer;
};

}

#endif