+static void sleep_milliseconds_x(unsigned long milliseconds_delay)
+{
+ boolean do_busy_waiting = (milliseconds_delay < 5 ? TRUE : FALSE);
+
+#if defined(PLATFORM_MSDOS)
+ /* don't use select() to perform waiting operations under DOS/Windows
+ environment; always use a busy loop for waiting instead */
+ do_busy_waiting = TRUE;
+#endif
+
+
+
+ do_busy_waiting = TRUE;
+
+
+
+ if (do_busy_waiting)
+ {
+ /* we want to wait only a few ms -- if we assume that we have a
+ kernel timer resolution of 10 ms, we would wait far to long;
+ therefore it's better to do a short interval of busy waiting
+ to get our sleeping time more accurate */
+
+ unsigned long base_counter = Counter(), actual_counter = Counter();
+
+ while (actual_counter < base_counter + milliseconds_delay &&
+ actual_counter >= base_counter)
+ actual_counter = Counter();
+ }
+ else
+ {
+#if defined(TARGET_SDL)
+ SDL_Delay(milliseconds_delay);
+#else
+ struct timeval delay;
+
+ delay.tv_sec = milliseconds_delay / 1000;
+ delay.tv_usec = 1000 * (milliseconds_delay % 1000);
+
+ if (select(0, NULL, NULL, NULL, &delay) != 0)
+ Error(ERR_WARN, "sleep_milliseconds(): select() failed");
+#endif
+ }
+}
+