Return to timeval.h CVS log

Up to [Local Repository] / imach / src

	* timeval.h (Module): Added included file to make use of
	gettimeofday working on win32 with cygwin.

    1: /*
    2:  * timeval.h    1.0 01/12/19
    3:  *
    4:  * Defines gettimeofday, timeval, etc. for Win32
    5:  *
    6:  * By Wu Yongwei
    7:  *
    8:  */
    9: 
   10: #ifndef _TIMEVAL_H
   11: #define _TIMEVAL_H
   12: 
   13: #ifdef _WIN32
   14: 
   15: #define WIN32_LEAN_AND_MEAN
   16: #include <windows.h>
   17: #include <time.h>
   18: 
   19: #ifndef __GNUC__
   20: #define EPOCHFILETIME (116444736000000000i64)
   21: #else
   22: #define EPOCHFILETIME (116444736000000000LL)
   23: #endif
   24: 
   25: struct timeval {
   26:     long tv_sec;        /* seconds */
   27:     long tv_usec;  /* microseconds */
   28: };
   29: 
   30: struct timezone {
   31:     int tz_minuteswest; /* minutes W of Greenwich */
   32:     int tz_dsttime;     /* type of dst correction */
   33: };
   34: 
   35: __inline int gettimeofday(struct timeval *tv, struct timezone *tz)
   36: {
   37:     FILETIME        ft;
   38:     LARGE_INTEGER   li;
   39:     __int64         t;
   40:     static int      tzflag;
   41: 
   42:     if (tv)
   43:     {
   44:         GetSystemTimeAsFileTime(&ft);
   45:         li.LowPart  = ft.dwLowDateTime;
   46:         li.HighPart = ft.dwHighDateTime;
   47:         t  = li.QuadPart;       /* In 100-nanosecond intervals */
   48:         t -= EPOCHFILETIME;     /* Offset to the Epoch time */
   49:         t /= 10;                /* In microseconds */
   50:         tv->tv_sec  = (long)(t / 1000000);
   51:         tv->tv_usec = (long)(t % 1000000);
   52:     }
   53: 
   54:     if (tz)
   55:     {
   56:         if (!tzflag)
   57:         {
   58:             _tzset();
   59:             tzflag++;
   60:         }
   61:         tz->tz_minuteswest = _timezone / 60;
   62:         tz->tz_dsttime = _daylight;
   63:     }
   64: 
   65:     return 0;
   66: }
   67: 
   68: #else  /* _WIN32 */
   69: 
   70: #include <sys/time.h>
   71: 
   72: #endif /* _WIN32 */
   73: 
   74: #endif /* _TIMEVAL_H */
   75: 
   76: