source: Daodan/MinGW/include/sys/time.h@ 1108

#ifndef _SYS_TIME_H_
#define _SYS_TIME_H_
#include <time.h>

#ifdef  __cplusplus
extern "C" {
#endif

#ifndef _TIMEVAL_DEFINED /* also in winsock[2].h */
#define _TIMEVAL_DEFINED
struct timeval {
  long tv_sec;
  long tv_usec;
};
#define timerisset(tvp)  ((tvp)->tv_sec || (tvp)->tv_usec)
#define timercmp(tvp, uvp, cmp) \
        (((tvp)->tv_sec != (uvp)->tv_sec) ? \
        ((tvp)->tv_sec cmp (uvp)->tv_sec) : \
        ((tvp)->tv_usec cmp (uvp)->tv_usec))
#define timerclear(tvp)  (tvp)->tv_sec = (tvp)->tv_usec = 0
#endif /* _TIMEVAL_DEFINED */

/* Provided for compatibility with code that assumes that
   the presence of gettimeofday function implies a definition
   of struct timezone. */
struct timezone
{
  int tz_minuteswest; /* of Greenwich */
  int tz_dsttime;     /* type of dst correction to apply */
};

/*
   Implementation as per:
   The Open Group Base Specifications, Issue 6
   IEEE Std 1003.1, 2004 Edition

   The timezone pointer arg is ignored.  Errors are ignored.
*/
int __cdecl __MINGW_NOTHROW gettimeofday(struct timeval *__restrict__,
                         void *__restrict__  /* tzp (unused) */);

#ifdef  __cplusplus
}
#endif


#endif /* _SYS_TIME_H_ */