#ifdef PLATFORM_POSIX
dword GetTickCount() {
#if _POSIX_C_SOURCE >= 199309L
	struct timespec tp;
	if (clock_gettime(CLOCK_MONOTONIC, &tp) == 0)
	{
		return (dword)((tp.tv_sec * 1000) + (tp.tv_nsec / 1000000));
	}
	return 0; // ?? (errno is set)
#else
	struct timeval tv[1];
	struct timezone tz[1];
	memset(tz, 0, sizeof(tz));
	gettimeofday(tv, tz);
	return (dword)tv->tv_sec * 1000 + tv->tv_usec / 1000;
#endif
}

qword GetTickCount64() {
#if _POSIX_C_SOURCE >= 199309L
	struct timespec tp;
	if (clock_gettime(CLOCK_MONOTONIC, &tp) == 0)
	{
		return (qword)((tp.tv_sec * 1000) + (tp.tv_nsec / 1000000));
	}
	return 0; // ?? (errno is set)
#else
	struct timeval tv[1];
	struct timezone tz[1];
	memset(tz, 0, sizeof(tz));
	gettimeofday(tv, tz);
	return (qword)tv->tv_sec * 1000 + tv->tv_usec / 1000;
#endif
}
#endif