GeometryWars/TimeManager.hpp at master · rroa/GeometryWars · GitHub

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#pragma once

#ifndef _TIME_MANAGER_H_
#define _TIME_MANAGER_H_

#ifdef WIN32   // Windows system specific
    #include <windows.h>
#else          // Unix based system specific
    #include <sys/time.h>
#endif

namespace Geometry
{
    class TimeManager
    {
    public:
       /* =============================================================
        * CTOR
        * ============================================================= */

        TimeManager                          ( );

       /* =============================================================
        * DTOR
        * ============================================================= */

        ~TimeManager                         ( );

       /* =============================================================
        * PUBLIC FUNCTIONS
        * ============================================================= */

        void    Start                        ( );
        void    Stop                         ( );
        double  GetElapsedTime               ( );  // By default elapsed time is returned in seconds.
        double  GetElapsedTimeInSeconds      ( );  // Returns elapsed time in seconds.
        double  GetElapsedTimeInMicroseconds ( );  // Returns elapsed time in microseconds.
        double  GetElapsedTimeInMilliseconds ( );  // Returns elapsed time in milliseconds.
    private:
       /* =============================================================
        * MEMBERS
        * ============================================================= */

        double m_startTimeInMicroSeconds;
        double m_endTimeInMicroSeconds;
        int    m_stopped;

#ifdef WIN32
        LARGE_INTEGER m_frequency;
        LARGE_INTEGER m_startCount;
        LARGE_INTEGER m_endCount;
#else
        timeval m_startCount;
        timeval m_endCount;
#endif
    };
}

#endif // _TIME_MANAGER_H_