static uint64_t
GetMonoTimeMillis()
{
    timespec ts;
    ASSERT(clock_gettime(CLOCK_MONOTONIC_RAW, &ts) == 0);
    return ts.tv_sec * 1'000 + ts.tv_nsec / 1'000'000;
}

static uint64_t
GetMonoTimeMicros()
{
    timespec ts;
    ASSERT(clock_gettime(CLOCK_MONOTONIC_RAW, &ts) == 0);
    return ts.tv_sec * 1'000'000 + ts.tv_nsec / 1'000;
}

static uint64_t
GetMonoTimeNanos()
{
    timespec ts;
    ASSERT(clock_gettime(CLOCK_MONOTONIC_RAW, &ts) == 0);
    return ts.tv_sec * 1'000'000'000 + ts.tv_nsec;
}

static wall_clock_time
GetWallTime()
{
    timespec ts;
    ASSERT(clock_gettime(CLOCK_REALTIME, &ts) == 0);

    time_t t = (time_t)ts.tv_sec;
    tm local_tm;
    localtime_r(&t, &local_tm);

    wall_clock_time ret{};
    ret.Year = (uint32_t)(local_tm.tm_year + 1900);
    ret.Month = (uint32_t)(local_tm.tm_mon + 1);
    ret.Day = (uint32_t)local_tm.tm_mday;
    ret.Hour = (uint32_t)local_tm.tm_hour;
    ret.Minute = (uint32_t)local_tm.tm_min;
    ret.Second = (uint32_t)local_tm.tm_sec;

    return ret;
}

static void
Sleep(uint64_t millis)
{
    usleep(millis * 1000L);
}