home *** CD-ROM | disk | FTP | other *** search
- /* time.h -- An implementation of the standard Unix <sys/time.h> file.
- Written by Geoffrey Noer <noer@cygnus.com>
- Public domain; no rights reserved. */
-
- #ifndef _SYS_TIME_H_
- #define _SYS_TIME_H_
-
- #include <_ansi.h>
- #include <sys/types.h>
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- #ifndef _WINSOCK_H
- struct timeval {
- long tv_sec;
- long tv_usec;
- };
-
- struct timezone {
- int tz_minuteswest;
- int tz_dsttime;
- };
-
- #ifdef __CYGWIN__
- #include <sys/select.h>
- #endif /* __CYGWIN__ */
-
- #endif /* _WINSOCK_H */
-
- #define ITIMER_REAL 0
- #define ITIMER_VIRTUAL 1
- #define ITIMER_PROF 2
-
- struct itimerval {
- struct timeval it_interval;
- struct timeval it_value;
- };
-
- /* BSD time macros used by RTEMS code */
- #if defined (__rtems__) || defined (__CYGWIN__)
-
- /* Convenience macros for operations on timevals.
- NOTE: `timercmp' does not work for >= or <=. */
- #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
- #define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
- #define timercmp(a, b, CMP) \
- (((a)->tv_sec == (b)->tv_sec) ? \
- ((a)->tv_usec CMP (b)->tv_usec) : \
- ((a)->tv_sec CMP (b)->tv_sec))
- #define timeradd(a, b, result) \
- do { \
- (result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
- (result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
- if ((result)->tv_usec >= 1000000) \
- { \
- ++(result)->tv_sec; \
- (result)->tv_usec -= 1000000; \
- } \
- } while (0)
- #define timersub(a, b, result) \
- do { \
- (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
- (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
- if ((result)->tv_usec < 0) { \
- --(result)->tv_sec; \
- (result)->tv_usec += 1000000; \
- } \
- } while (0)
- #endif /* defined (__rtems__) || defined (__CYGWIN__) */
-
- int _EXFUN(gettimeofday, (struct timeval *__p, struct timezone *__z));
- int _EXFUN(settimeofday, (const struct timeval *, const struct timezone *));
- int _EXFUN(utimes, (const char *__path, struct timeval *__tvp));
- int _EXFUN(getitimer, (int __which, struct itimerval *__value));
- int _EXFUN(setitimer, (int __which, const struct itimerval *__value,
- struct itimerval *__ovalue));
-
- #ifdef __cplusplus
- }
- #endif
- #endif /* _SYS_TIME_H_ */
-