* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* @(#)time.h 8.1 (Berkeley) 6/2/93
* Structure returned by gettimeofday(2) system call,
* and used in other calls.
long tv_sec
; /* seconds */
long tv_usec
; /* and microseconds */
* Structure defined by POSIX.4 to be like a timeval.
long ts_sec
; /* seconds */
long ts_nsec
; /* and nanoseconds */
#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
(ts)->ts_sec = (tv)->tv_sec; \
(ts)->ts_nsec = (tv)->tv_usec * 1000; \
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
(tv)->tv_sec = (ts)->ts_sec; \
(tv)->tv_usec = (ts)->ts_nsec / 1000; \
int tz_minuteswest
; /* minutes west of Greenwich */
int tz_dsttime
; /* type of dst correction */
#define DST_NONE 0 /* not on dst */
#define DST_USA 1 /* USA style dst */
#define DST_AUST 2 /* Australian style dst */
#define DST_WET 3 /* Western European dst */
#define DST_MET 4 /* Middle European dst */
#define DST_EET 5 /* Eastern European dst */
#define DST_CAN 6 /* Canada */
/* Operations on timevals. */
#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timercmp(tvp, uvp, cmp) \
(((tvp)->tv_sec == (uvp)->tv_sec) ? \
((tvp)->tv_usec cmp (uvp)->tv_usec) : \
((tvp)->tv_sec cmp (uvp)->tv_sec))
* Names of the interval timers, and structure
* defining a timer setting.
struct timeval it_interval
; /* timer interval */
struct timeval it_value
; /* current value */
* Getkerninfo clock information structure
int hz
; /* clock frequency */
int tick
; /* micro-seconds per hz tick */
int stathz
; /* statistics clock frequency */
int profhz
; /* profiling clock frequency */
int adjtime
__P((const struct timeval
*, struct timeval
*));
int getitimer
__P((int, struct itimerval
*));
int gettimeofday
__P((struct timeval
*, struct timezone
*));
int setitimer
__P((int, const struct itimerval
*, struct itimerval
*));
int settimeofday
__P((const struct timeval
*, const struct timezone
*));
int utimes
__P((const char *, const struct timeval
*));
#endif /* !_SYS_TIME_H_ */