#include <time.h>
#include <Winsock2.h> /* to get timeval struct */

struct timezone 
{
  int  tz_minuteswest; /* minutes W of Greenwich */
  int  tz_dsttime;     /* type of dst correction */
};
#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
#define DELTA_EPOCH_IN_MICROSECS  11644473600000000Ui64
#else
#define DELTA_EPOCH_IN_MICROSECS  11644473600000000ULL
#endif

static int gettimeofday(struct timeval *tv, struct timezone *tz)
{
  FILETIME ft;
  unsigned __int64 tmpres = 0;
  static int tzflag;
     
  if (NULL != tv)
    {
    GetSystemTimeAsFileTime(&ft);
     
    tmpres |= ft.dwHighDateTime;
    tmpres <<= 32;
    tmpres |= ft.dwLowDateTime;
     
    /*converting file time to unix epoch*/
    tmpres /= 10;  /*convert into microseconds*/
    tmpres -= DELTA_EPOCH_IN_MICROSECS; 
    tv->tv_sec = (long)(tmpres / 1000000UL);
    tv->tv_usec = (long)(tmpres % 1000000UL);
    }
     
  if (NULL != tz)
    {
    if (!tzflag)
      {
      _tzset();
      tzflag++;
      }
    tz->tz_minuteswest = _timezone / 60;
    tz->tz_dsttime = _daylight;
    }
     
  return 0;
}


