xref: /freebsd/include/time.h (revision 73cf72f56588dc081c005fe9080bbdb75b789f3a)
159deaec5SRodney W. Grimes /*
259deaec5SRodney W. Grimes  * Copyright (c) 1989, 1993
359deaec5SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
459deaec5SRodney W. Grimes  * (c) UNIX System Laboratories, Inc.
559deaec5SRodney W. Grimes  * All or some portions of this file are derived from material licensed
659deaec5SRodney W. Grimes  * to the University of California by American Telephone and Telegraph
759deaec5SRodney W. Grimes  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
859deaec5SRodney W. Grimes  * the permission of UNIX System Laboratories, Inc.
959deaec5SRodney W. Grimes  *
1059deaec5SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
1159deaec5SRodney W. Grimes  * modification, are permitted provided that the following conditions
1259deaec5SRodney W. Grimes  * are met:
1359deaec5SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
1459deaec5SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
1559deaec5SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
1659deaec5SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
1759deaec5SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
1859deaec5SRodney W. Grimes  * 3. All advertising materials mentioning features or use of this software
1959deaec5SRodney W. Grimes  *    must display the following acknowledgement:
2059deaec5SRodney W. Grimes  *	This product includes software developed by the University of
2159deaec5SRodney W. Grimes  *	California, Berkeley and its contributors.
2259deaec5SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
2359deaec5SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
2459deaec5SRodney W. Grimes  *    without specific prior written permission.
2559deaec5SRodney W. Grimes  *
2659deaec5SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2759deaec5SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2859deaec5SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2959deaec5SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
3059deaec5SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
3159deaec5SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
3259deaec5SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
3359deaec5SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
3459deaec5SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
3559deaec5SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3659deaec5SRodney W. Grimes  * SUCH DAMAGE.
3759deaec5SRodney W. Grimes  *
3859deaec5SRodney W. Grimes  *	@(#)time.h	8.3 (Berkeley) 1/21/94
3959deaec5SRodney W. Grimes  */
4059deaec5SRodney W. Grimes 
415b32a38aSPoul-Henning Kamp /*
425b32a38aSPoul-Henning Kamp  * $FreeBSD$
435b32a38aSPoul-Henning Kamp  */
445b32a38aSPoul-Henning Kamp 
4559deaec5SRodney W. Grimes #ifndef _TIME_H_
4659deaec5SRodney W. Grimes #define	_TIME_H_
4759deaec5SRodney W. Grimes 
481cb2a9aeSGarrett Wollman #include <sys/cdefs.h>
4959deaec5SRodney W. Grimes #include <machine/ansi.h>
5059deaec5SRodney W. Grimes 
5173cf72f5SGarrett Wollman #if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE
52339b0f68SBruce Evans /*
53339b0f68SBruce Evans  * Frequency of the clock ticks reported by times().  Deprecated - use
541cb2a9aeSGarrett Wollman  * sysconf(_SC_CLK_TCK) instead.  (Removed in 1003.1-2001.)
55339b0f68SBruce Evans  */
5602a7dd76SBruce Evans #define	CLK_TCK		_BSD_CLK_TCK_
57339b0f68SBruce Evans #endif
58339b0f68SBruce Evans 
59339b0f68SBruce Evans /* Frequency of the clock ticks reported by clock().  */
60339b0f68SBruce Evans #define	CLOCKS_PER_SEC	_BSD_CLOCKS_PER_SEC_
61339b0f68SBruce Evans 
6259deaec5SRodney W. Grimes #ifndef	NULL
6359deaec5SRodney W. Grimes #define	NULL	0
6459deaec5SRodney W. Grimes #endif
6559deaec5SRodney W. Grimes 
6659deaec5SRodney W. Grimes #ifdef	_BSD_CLOCK_T_
6759deaec5SRodney W. Grimes typedef	_BSD_CLOCK_T_	clock_t;
6859deaec5SRodney W. Grimes #undef	_BSD_CLOCK_T_
6959deaec5SRodney W. Grimes #endif
7059deaec5SRodney W. Grimes 
7159deaec5SRodney W. Grimes #ifdef	_BSD_TIME_T_
7259deaec5SRodney W. Grimes typedef	_BSD_TIME_T_	time_t;
7359deaec5SRodney W. Grimes #undef	_BSD_TIME_T_
7459deaec5SRodney W. Grimes #endif
7559deaec5SRodney W. Grimes 
76f154fbdaSPeter Wemm #ifdef	_BSD_SIZE_T_
77f154fbdaSPeter Wemm typedef	_BSD_SIZE_T_	size_t;
78f154fbdaSPeter Wemm #undef	_BSD_SIZE_T_
79f154fbdaSPeter Wemm #endif
80f154fbdaSPeter Wemm 
811cb2a9aeSGarrett Wollman #if __POSIX_VISIBLE >= 199309
82f154fbdaSPeter Wemm /*
83f154fbdaSPeter Wemm  * New in POSIX 1003.1b-1993.
84f154fbdaSPeter Wemm  */
859e0eb33eSAndrey A. Chernov #ifdef	_BSD_CLOCKID_T_
869e0eb33eSAndrey A. Chernov typedef	_BSD_CLOCKID_T_	clockid_t;
879e0eb33eSAndrey A. Chernov #undef	_BSD_CLOCKID_T_
889e0eb33eSAndrey A. Chernov #endif
899e0eb33eSAndrey A. Chernov 
90f154fbdaSPeter Wemm #ifdef	_BSD_TIMER_T_
91f154fbdaSPeter Wemm typedef	_BSD_TIMER_T_	timer_t;
92f154fbdaSPeter Wemm #undef	_BSD_TIMER_T_
9359deaec5SRodney W. Grimes #endif
9459deaec5SRodney W. Grimes 
951cb2a9aeSGarrett Wollman #include <sys/timespec.h>
961cb2a9aeSGarrett Wollman #endif /* __POSIX_VISIBLE >= 199309 */
97f154fbdaSPeter Wemm 
9859deaec5SRodney W. Grimes struct tm {
9959deaec5SRodney W. Grimes 	int	tm_sec;		/* seconds after the minute [0-60] */
10059deaec5SRodney W. Grimes 	int	tm_min;		/* minutes after the hour [0-59] */
10159deaec5SRodney W. Grimes 	int	tm_hour;	/* hours since midnight [0-23] */
10259deaec5SRodney W. Grimes 	int	tm_mday;	/* day of the month [1-31] */
10359deaec5SRodney W. Grimes 	int	tm_mon;		/* months since January [0-11] */
10459deaec5SRodney W. Grimes 	int	tm_year;	/* years since 1900 */
10559deaec5SRodney W. Grimes 	int	tm_wday;	/* days since Sunday [0-6] */
10659deaec5SRodney W. Grimes 	int	tm_yday;	/* days since January 1 [0-365] */
10759deaec5SRodney W. Grimes 	int	tm_isdst;	/* Daylight Savings Time flag */
1085b32a38aSPoul-Henning Kamp 	long	tm_gmtoff;	/* offset from UTC in seconds */
10959deaec5SRodney W. Grimes 	char	*tm_zone;	/* timezone abbreviation */
11059deaec5SRodney W. Grimes };
11159deaec5SRodney W. Grimes 
1121cb2a9aeSGarrett Wollman #if __POSIX_VISIBLE
1132bd32397SJoseph Koshy extern char *tzname[];
1142bd32397SJoseph Koshy #endif
1152bd32397SJoseph Koshy 
11659deaec5SRodney W. Grimes __BEGIN_DECLS
117bb28f3c2SWarner Losh char *asctime(const struct tm *);
118bb28f3c2SWarner Losh clock_t clock(void);
119bb28f3c2SWarner Losh char *ctime(const time_t *);
120bb28f3c2SWarner Losh double difftime(time_t, time_t);
121bb28f3c2SWarner Losh struct tm *gmtime(const time_t *);
122bb28f3c2SWarner Losh struct tm *localtime(const time_t *);
123bb28f3c2SWarner Losh time_t mktime(struct tm *);
124bb28f3c2SWarner Losh size_t strftime(char *, size_t, const char *, const struct tm *);
125bb28f3c2SWarner Losh time_t time(time_t *);
12659deaec5SRodney W. Grimes 
1271cb2a9aeSGarrett Wollman #if __BSD_VISIBLE			/* XXX what are these? */
128bb28f3c2SWarner Losh time_t _time32_to_time(__int32_t t32);
129bb28f3c2SWarner Losh __int32_t _time_to_time32(time_t t);
130bb28f3c2SWarner Losh time_t _time64_to_time(__int64_t t64);
131bb28f3c2SWarner Losh __int64_t _time_to_time64(time_t t);
132bb28f3c2SWarner Losh long _time_to_long(time_t t);
133bb28f3c2SWarner Losh time_t _long_to_time(long tlong);
134bb28f3c2SWarner Losh int _time_to_int(time_t t);
135bb28f3c2SWarner Losh time_t _int_to_time(int tint);
136237c4e3aSMatthew Dillon #endif /* not ANSI */
137237c4e3aSMatthew Dillon 
1381cb2a9aeSGarrett Wollman #if __POSIX_VISIBLE
139bb28f3c2SWarner Losh void tzset(void);
14059deaec5SRodney W. Grimes 
1411cb2a9aeSGarrett Wollman /* XXX - figure out which standard introduced these */
142bb28f3c2SWarner Losh char *asctime_r(const struct tm *, char *);
143bb28f3c2SWarner Losh char *ctime_r(const time_t *, char *);
144bb28f3c2SWarner Losh struct tm *gmtime_r(const time_t *, struct tm *);
145bb28f3c2SWarner Losh struct tm *localtime_r(const time_t *, struct tm *);
1461cb2a9aeSGarrett Wollman #endif
1471cb2a9aeSGarrett Wollman 
1481cb2a9aeSGarrett Wollman #if __XSI_VISIBLE
149bb28f3c2SWarner Losh char *strptime(const char *, const char *, struct tm *);
1501cb2a9aeSGarrett Wollman #endif
1511cb2a9aeSGarrett Wollman 
1521cb2a9aeSGarrett Wollman #if __BSD_VISIBLE
153bb28f3c2SWarner Losh char *timezone(int, int);
154bb28f3c2SWarner Losh void tzsetwall(void);
155bb28f3c2SWarner Losh time_t timelocal(struct tm * const);
156bb28f3c2SWarner Losh time_t timegm(struct tm * const);
1571cb2a9aeSGarrett Wollman #endif /* __BSD_VISIBLE */
158f154fbdaSPeter Wemm 
1591cb2a9aeSGarrett Wollman #if __POSIX_VISIBLE >= 199309
160f154fbdaSPeter Wemm /* Introduced in POSIX 1003.1b-1993, not part of 1003.1-1990. */
161bb28f3c2SWarner Losh int clock_getres(clockid_t, struct timespec *);
162bb28f3c2SWarner Losh int clock_gettime(clockid_t, struct timespec *);
163bb28f3c2SWarner Losh int clock_settime(clockid_t, const struct timespec *);
164bb28f3c2SWarner Losh int nanosleep(const struct timespec *, struct timespec *);
1651cb2a9aeSGarrett Wollman #endif /* __POSIX_VISIBLE >= 199309 */
16659deaec5SRodney W. Grimes __END_DECLS
16759deaec5SRodney W. Grimes 
16859deaec5SRodney W. Grimes #endif /* !_TIME_H_ */
169