+#ifdef HAVE_GETTIMEOFDAY
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+#elif defined(WIN32)
+ struct timeval tv;
+# if defined(WIN32_WCE) || (_WIN32_WINNT < 0x0400)
+ struct _timeb tm;
+
+ _ftime(&tm);
+
+ tv.tv_sec = tm.time;
+ tv.tv_usec = tm.millitm * 1000;
+
+# else
+ FILETIME ft;
+ unsigned __int64 tm;
+
+ GetSystemTimeAsFileTime(&ft);
+ tm = (unsigned __int64) ft.dwHighDateTime << 32;
+ tm |= ft.dwLowDateTime;
+ tm /= 10;
+ tm -= 11644473600000000ULL;
+
+ tv.tv_sec = (long) (tm / 1000000L);
+ tv.tv_usec = (long) (tm % 1000000L);
+# endif /* windows version checker */
+
+#else /* not windows, no gettimeofday => poor resolution */
+ return (double) (time(NULL));
+#endif /* HAVE_GETTIMEOFDAY? */
+
+ return (double) (tv.tv_sec + tv.tv_usec / 1000000.0);