time.h revision 13545 
1/*
2 * Copyright (c) 1989, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	@(#)time.h	8.3 (Berkeley) 1/21/94
39 */
40
41#ifndef _TIME_H_
42#define	_TIME_H_
43
44#include <machine/ansi.h>
45
46#ifndef _ANSI_SOURCE
47/*
48 * Frequency of the clock ticks reported by times().  Deprecated - use
49 * sysconf(_SC_CLK_TCK) instead.
50 */
51#define	CLK_TCK		_BSD_CLK_TCK_
52#endif
53
54/* Frequency of the clock ticks reported by clock().  */
55#define	CLOCKS_PER_SEC	_BSD_CLOCKS_PER_SEC_
56
57#ifndef	NULL
58#define	NULL	0
59#endif
60
61#ifdef	_BSD_CLOCK_T_
62typedef	_BSD_CLOCK_T_	clock_t;
63#undef	_BSD_CLOCK_T_
64#endif
65
66#ifdef	_BSD_TIME_T_
67typedef	_BSD_TIME_T_	time_t;
68#undef	_BSD_TIME_T_
69#endif
70
71#ifdef	_BSD_SIZE_T_
72typedef	_BSD_SIZE_T_	size_t;
73#undef	_BSD_SIZE_T_
74#endif
75
76struct tm {
77	int	tm_sec;		/* seconds after the minute [0-60] */
78	int	tm_min;		/* minutes after the hour [0-59] */
79	int	tm_hour;	/* hours since midnight [0-23] */
80	int	tm_mday;	/* day of the month [1-31] */
81	int	tm_mon;		/* months since January [0-11] */
82	int	tm_year;	/* years since 1900 */
83	int	tm_wday;	/* days since Sunday [0-6] */
84	int	tm_yday;	/* days since January 1 [0-365] */
85	int	tm_isdst;	/* Daylight Savings Time flag */
86	long	tm_gmtoff;	/* offset from CUT in seconds */
87	char	*tm_zone;	/* timezone abbreviation */
88};
89
90#include <sys/cdefs.h>
91
92__BEGIN_DECLS
93char *asctime __P((const struct tm *));
94clock_t clock __P((void));
95char *ctime __P((const time_t *));
96double difftime __P((time_t, time_t));
97struct tm *gmtime __P((const time_t *));
98struct tm *localtime __P((const time_t *));
99time_t mktime __P((struct tm *));
100size_t strftime __P((char *, size_t, const char *, const struct tm *));
101time_t time __P((time_t *));
102
103#ifdef	_THREAD_SAFE
104int asctime_r __P((const struct tm *, char *, int));
105int	ctime_r __P((const time_t *, char *, int));
106int	gmtime_r __P((const time_t *, struct tm *));
107int localtime_r __P((const time_t *, struct tm *));
108#endif
109
110#ifndef _ANSI_SOURCE
111void tzset __P((void));
112#endif /* not ANSI */
113
114#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
115char *timezone __P((int, int));
116void tzsetwall __P((void));
117time_t timelocal __P((struct tm * const));
118time_t timegm __P((struct tm * const));
119#endif /* neither ANSI nor POSIX */
120__END_DECLS
121
122#endif /* !_TIME_H_ */
123