OStimer.h

#pragma once


#include <libutl/Object.h>


#if UTL_HOST_OS == UTL_OS_MINGW
#include <libutl/win32api.h>
#else
#include <sys/times.h>
#endif


UTL_NS_BEGIN;



class OStimer : public Object
{
    UTL_CLASS_DECL(OStimer, Object);
    UTL_CLASS_DEFID;
    UTL_CLASS_NO_COPY;
    UTL_CLASS_NO_SERIALIZE;

public:
    void start();
    void stop();

    double userTime();
    double systemTime();
    double totalTime();

#if UTL_HOST_OS == UTL_OS_MINGW
private:
    inline static double intervalSeconds(FILETIME& lhs, FILETIME& rhs);
    FILETIME _userStart, _userStop;
    FILETIME _systemStart, _systemStop;
#else
public:
    double childUserTime();
    double childSystemTime();
    double childTotalTime();

private:
    inline static double clocksToSeconds(clock_t clocks);
    struct tms _tmsStart;
    struct tms _tmsStop;
#endif
};


UTL_NS_END;