+#endif
+
+#if defined(_WIN32) && !defined(__GNUC__)
+ #include <windows.h>
+ #include <time.h>
+
+ #if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
+ #define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
+ #else
+ #define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
+ #endif
+
+ struct timezone
+ {
+ int tz_minuteswest; /* minutes W of Greenwich */
+ int tz_dsttime; /* type of dst correction */
+ };
+
+ int gettimeofday(struct timeval *tv, struct timezone *tz)
+ {
+ // Define a structure to receive the current Windows filetime
+ FILETIME ft;
+
+ // Initialize the present time to 0 and the timezone to UTC
+ unsigned __int64 tmpres = 0;
+ static int tzflag = 0;
+
+ if (NULL != tv)
+ {
+ GetSystemTimeAsFileTime(&ft);
+
+ // The GetSystemTimeAsFileTime returns the number of 100 nanosecond
+ // intervals since Jan 1, 1601 in a structure. Copy the high bits to
+ // the 64 bit tmpres, shift it left by 32 then or in the low 32 bits.
+ tmpres |= ft.dwHighDateTime;
+ tmpres <<= 32;
+ tmpres |= ft.dwLowDateTime;
+
+ // Convert to microseconds by dividing by 10
+ tmpres /= 10;
+
+ // The Unix epoch starts on Jan 1 1970. Need to subtract the difference
+ // in seconds from Jan 1 1601.
+ tmpres -= DELTA_EPOCH_IN_MICROSECS;
+
+ // Finally change microseconds to seconds and place in the seconds value.
+ // The modulus picks up the microseconds.
+ tv->tv_sec = (long)(tmpres / 1000000UL);
+ tv->tv_usec = (long)(tmpres % 1000000UL);
+ }
+
+ if (NULL != tz)
+ {
+ if (!tzflag)
+ {
+ _tzset();
+ tzflag++;
+ }
+
+ // Adjust for the timezone west of Greenwich
+ tz->tz_minuteswest = _timezone / 60;
+ tz->tz_dsttime = _daylight;
+ }
+
+ return 0;
+ }
+