C11Timer.h

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#ifndef COMPONENTS_C11TIMER_H
#define COMPONENTS_C11TIMER_H

#include <chrono>

#include <casa/namespace.h>

namespace casa {

class C11Timer {
        // <summary>
        // Timer based on C++11 chrono library
        // </summary>

        // <reviewed reviewer="" date="" tests="" demos="">
        // </reviewed>

        // <prerequisite>
        // </prerequisite>

        // <etymology>
        // Timer based on C++11 chrono library
        // </etymology>

        // <synopsis>
        // Timer based on C++11 chrono library
        // </synopsis>

public:
        // create the timer but do not start it.
        C11Timer();

        ~C11Timer();

        // return mean duration, in seconds, of all start/stop cycles
        Double meanDuration() const;

        // duration in seconds of most recent start/stop cycle
        Double duration() const;

        // number of start/stop cycles
        uInt nCycles() const;

        // (re)start the timer
        void start();

        // stop the timer
        void stop();

        // total duration in seconds, sum of all start/stop cycles
        // doesn't include the duration of the current cycle if the
        // timer is currently running
        Double totalDuration() const;

private:
    std::chrono::steady_clock::time_point _start;
        std::chrono::duration<double> _duration, _totalDuration;
        uInt _nCycles;


};
}

#endif