ACE/apps/JAWS/clients/WebSTONE/src/gettimeofday.c

   1 /*
   2  *  This file defines functions that are required for unix compatibility.
   3  *
   4  *  These functions are not available in the Microsoft C/C++ Run Time
   5  *  and the Win32 API.
   6  *
   7  *  The following functions list may not be complete
   8  *
   9  *  FUNCTIONS:
  10  *     SHARED   _gettimeofday
  11  */
  12
  13
  14 #include <windows.h>
  15 #include <errno.h>
  16 #include <winsock.h> /* For definition of "timeval" structure */
  17 #include <sys/timeb.h> /* For prototype of "_ftime()" */
  18
  19
  20 /*
  21  * gettimeofday() --  gets the current time in elapsed seconds and
  22  *                     microsends since GMT Jan 1, 1970.
  23  *
  24  * ARGUMENTS: - Pointer to a timeval struct to return the time into
  25  *
  26  * RETURN CODES: -  0 on success
  27  *                 -1 on failure
  28  */
  29 int gettimeofday(curTimeP)
  30     struct timeval *curTimeP;
  31 {
  32 struct _timeb  localTime;
  33
  34     if (curTimeP == (struct timeval *) 0)
  35     {
  36       errno = EFAULT;
  37       return (-1);
  38     }
  39
  40    /*
  41     *  Compute the elapsed time since Jan 1, 1970 by first
  42     *  obtaining the elapsed time from the system using the
  43     *  _ftime(..) call and then convert to the "timeval"
  44     *  equivalent.
  45     */
  46
  47     _ftime(&localTime);
  48
  49     curTimeP->tv_sec  = localTime.time + localTime.timezone;
  50     curTimeP->tv_usec = localTime.millitm * 1000;
  51
  52     return(0);
  53 }
  54
  55