Function UTIL_getSpanTimeMicro

freebsd/contrib/zstd/programs/timefn.c:28–40

UTIL_time_t UTIL_getTime(void) { UTIL_time_t x; QueryPerformanceCounter(&x); return x; }

PTime UTIL_getSpanTimeMicro(UTIL_time_t clockStart, UTIL_time_t clockEnd)
{
    static LARGE_INTEGER ticksPerSecond;
    static int init = 0;
    if (!init) {
        if (!QueryPerformanceFrequency(&ticksPerSecond)) {
            perror("timefn::QueryPerformanceFrequency");
            abort();
        }
        init = 1;
    }
    return 1000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart;
}

PTime UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd)
{