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time.h revision 1.11 
      1 /*	$NetBSD: time.h,v 1.11 1997/07/13 18:09:51 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1989 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * (c) UNIX System Laboratories, Inc.
      8  * All or some portions of this file are derived from material licensed
      9  * to the University of California by American Telephone and Telegraph
     10  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
     11  * the permission of UNIX System Laboratories, Inc.
     12  *
     13  * Redistribution and use in source and binary forms, with or without
     14  * modification, are permitted provided that the following conditions
     15  * are met:
     16  * 1. Redistributions of source code must retain the above copyright
     17  *    notice, this list of conditions and the following disclaimer.
     18  * 2. Redistributions in binary form must reproduce the above copyright
     19  *    notice, this list of conditions and the following disclaimer in the
     20  *    documentation and/or other materials provided with the distribution.
     21  * 3. All advertising materials mentioning features or use of this software
     22  *    must display the following acknowledgement:
     23  *	This product includes software developed by the University of
     24  *	California, Berkeley and its contributors.
     25  * 4. Neither the name of the University nor the names of its contributors
     26  *    may be used to endorse or promote products derived from this software
     27  *    without specific prior written permission.
     28  *
     29  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     32  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     33  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     34  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     35  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     37  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     38  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     39  * SUCH DAMAGE.
     40  *
     41  *	@(#)time.h	5.12 (Berkeley) 3/9/91
     42  */
     43 
     44 #ifndef _TIME_H_
     45 #define	_TIME_H_
     46 
     47 #include <machine/ansi.h>
     48 
     49 #ifndef	NULL
     50 #define	NULL	0
     51 #endif
     52 
     53 #ifdef	_BSD_CLOCK_T_
     54 typedef	_BSD_CLOCK_T_	clock_t;
     55 #undef	_BSD_CLOCK_T_
     56 #endif
     57 
     58 #ifdef	_BSD_TIME_T_
     59 typedef	_BSD_TIME_T_	time_t;
     60 #undef	_BSD_TIME_T_
     61 #endif
     62 
     63 #ifdef	_BSD_SIZE_T_
     64 typedef	_BSD_SIZE_T_	size_t;
     65 #undef	_BSD_SIZE_T_
     66 #endif
     67 
     68 #define CLOCKS_PER_SEC	100
     69 
     70 struct tm {
     71 	int	tm_sec;		/* seconds after the minute [0-60] */
     72 	int	tm_min;		/* minutes after the hour [0-59] */
     73 	int	tm_hour;	/* hours since midnight [0-23] */
     74 	int	tm_mday;	/* day of the month [1-31] */
     75 	int	tm_mon;		/* months since January [0-11] */
     76 	int	tm_year;	/* years since 1900 */
     77 	int	tm_wday;	/* days since Sunday [0-6] */
     78 	int	tm_yday;	/* days since January 1 [0-365] */
     79 	int	tm_isdst;	/* Daylight Savings Time flag */
     80 	long	tm_gmtoff;	/* offset from CUT in seconds */
     81 	char	*tm_zone;	/* timezone abbreviation */
     82 };
     83 
     84 #include <sys/cdefs.h>
     85 
     86 __BEGIN_DECLS
     87 char *asctime __P((const struct tm *));
     88 clock_t clock __P((void));
     89 char *ctime __P((const time_t *));
     90 double difftime __P((time_t, time_t));
     91 struct tm *gmtime __P((const time_t *));
     92 struct tm *localtime __P((const time_t *));
     93 time_t mktime __P((struct tm *));
     94 size_t strftime __P((char *, size_t, const char *, const struct tm *));
     95 time_t time __P((time_t *));
     96 
     97 #if !defined(_ANSI_SOURCE)
     98 #define CLK_TCK		100
     99 extern char *tzname[2];
    100 void tzset __P((void));
    101 #endif /* not ANSI */
    102 
    103 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
    104 char *strptime __P((const char *, const char *, struct tm *));
    105 char *timezone __P((int, int));
    106 void tzsetwall __P((void));
    107 struct tm *offtime __P((const time_t *const, const long));
    108 time_t timelocal __P((struct tm *const));
    109 time_t timegm __P((struct tm *const));
    110 time_t timeoff __P((struct tm *const, const long));
    111 long gtime __P((struct tm *const));
    112 time_t time2posix __P((time_t));
    113 time_t posix2time __P((time_t));
    114 #endif /* neither ANSI nor POSIX */
    115 
    116 struct sigevent;
    117 struct itimerspec;
    118 int timer_create __P((clockid_t, struct sigevent *, timer_t *));
    119 int timer_delete __P((timer_t));
    120 int timer_getoverrun __P((timer_t));
    121 int timer_gettime __P((timer_t, struct itimerspec *));
    122 int timer_settime __P((timer_t, int, const struct itimerspec *,
    123     struct itimerspec *));
    124 __END_DECLS
    125 
    126 #endif /* !_TIME_H_ */
    127