D:/Timo/Visualisierung/LU/Aufgabe1/src/TimeCounter.cpp

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#include <windows.h>
#include <stdio.h>

static LONGLONG usTicks, msTicks;

LONGLONG __cdecl TimeCounter_read(void)
{
        LARGE_INTEGER ret;
        QueryPerformanceCounter(&ret);

        return ret.QuadPart;
}

LONGLONG TimeCounter_init() // must call to init
{
        LARGE_INTEGER ret;

        QueryPerformanceFrequency(&ret);
        msTicks = ret.QuadPart / 1000;
        usTicks = msTicks / 1000;

        return msTicks;
}

LONGLONG TimeCounter_getDiffInUs(LONGLONG countEnd, LONGLONG countStart) {
        LONGLONG ret;

        ret = countEnd - countStart;
        ret /= usTicks;

        return ret;
}

LONGLONG TimeCounter_getDiffInMs(LONGLONG countEnd, LONGLONG countStart) {
        LONGLONG ret;

        ret = countEnd - countStart;
        ret /= msTicks;

        return ret;
}

char* TimeCounter_toUsString(LONGLONG count) {
        char *ret = new char[20];
        if(count > 1000000L) {
                count /= 1000L;
                if(count > 1000000L) {
                        count /= 1000L;
                        if(count > 7200L) {
                                count /= 60L;
                                if(count > 60L * 48L) {
                                        count /= 60L;
                                        sprintf_s(ret, 20, "%I64u h", count);
                                }else sprintf_s(ret, 20, "%I64u min", count);
                        } else sprintf_s(ret, 20, "%I64u s", count);
                } else sprintf_s(ret, 20, "%I64u ms", count);
        } else sprintf_s(ret, 20, "%I64u us", count);

        return ret;
}

char* TimeCounter_toMsString(LONGLONG count) {
        char *ret = new char[20];
        if(count > 1000000L) {
                count /= 1000L;
                if(count > 7200L) {
                        count /= 60L;
                        if(count > 60L * 48L) {
                                count /= 60L;
                                sprintf_s(ret, 20, "%I64u h", count);
                        }else sprintf_s(ret, 20, "%I64u min", count);
                } else sprintf_s(ret, 20, "%I64u s", count);
        } else sprintf_s(ret, 20, "%I64u ms", count);

        return ret;
}

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