xref: /dragonfly/include/time.h (revision 6b5c5d0d)
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  * $DragonFly: src/include/time.h,v 1.5 2005/01/27 01:50:01 joerg Exp $
40  */
41 
42 #ifndef _TIME_H_
43 #define	_TIME_H_
44 
45 #ifndef _MACHINE_STDINT_H_
46 #include <machine/stdint.h>
47 #endif
48 #include <machine/uvparam.h>
49 #include <sys/_posix.h>
50 
51 #ifndef _ANSI_SOURCE
52 /*
53  * Frequency of the clock ticks reported by times().  Deprecated - use
54  * sysconf(_SC_CLK_TCK) instead.
55  */
56 #define	CLK_TCK		_BSD_CLK_TCK_
57 #endif
58 
59 /* Frequency of the clock ticks reported by clock().  */
60 #define	CLOCKS_PER_SEC	_BSD_CLOCKS_PER_SEC_
61 
62 #ifndef	NULL
63 #define	NULL	0
64 #endif
65 
66 #ifndef _CLOCK_T_DECLARED
67 #define _CLOCK_T_DECLARED
68 typedef	__clock_t	clock_t;
69 #endif
70 
71 #ifndef _TIME_T_DECLARED
72 #define _TIME_T_DECLARED
73 typedef	__time_t	time_t;
74 #endif
75 
76 /* XXX I'm not sure if _ANSI_SOURCE is playing properly
77  *     with the setups in _posix.h:
78  */
79 #if !defined(_ANSI_SOURCE) && defined(_P1003_1B_VISIBLE_HISTORICALLY)
80 /*
81  * New in POSIX 1003.1b-1993.
82  */
83 #ifndef _CLOCKID_T_DECLARED
84 #define _CLOCKID_T_DECLARED
85 typedef	__clockid_t	clockid_t;
86 #endif
87 
88 #ifndef _SIZE_T_DECLARED
89 #define _SIZE_T_DECLARED
90 typedef	__size_t	size_t;
91 #endif
92 
93 #ifndef _TIMER_T_DECLARED
94 #define _TIMER_T_DECLARED
95 typedef	__timer_t	timer_t;
96 #endif
97 
98 #ifndef _TIMESPEC_DECLARED
99 #define _TIMESPEC_DECLARED
100 struct timespec {
101 	time_t	tv_sec;		/* seconds */
102 	long	tv_nsec;	/* and nanoseconds */
103 };
104 #endif
105 #endif /* Neither ANSI nor POSIX */
106 
107 struct tm {
108 	int	tm_sec;		/* seconds after the minute [0-60] */
109 	int	tm_min;		/* minutes after the hour [0-59] */
110 	int	tm_hour;	/* hours since midnight [0-23] */
111 	int	tm_mday;	/* day of the month [1-31] */
112 	int	tm_mon;		/* months since January [0-11] */
113 	int	tm_year;	/* years since 1900 */
114 	int	tm_wday;	/* days since Sunday [0-6] */
115 	int	tm_yday;	/* days since January 1 [0-365] */
116 	int	tm_isdst;	/* Daylight Savings Time flag */
117 	long	tm_gmtoff;	/* offset from CUT in seconds */
118 	char	*tm_zone;	/* timezone abbreviation */
119 };
120 
121 #include <sys/cdefs.h>
122 
123 #ifndef	_ANSI_SOURCE
124 extern char *tzname[];
125 #endif
126 
127 __BEGIN_DECLS
128 char *asctime (const struct tm *);
129 clock_t clock (void);
130 char *ctime (const time_t *);
131 double difftime (time_t, time_t);
132 struct tm *gmtime (const time_t *);
133 struct tm *localtime (const time_t *);
134 time_t mktime (struct tm *);
135 size_t strftime (char *, size_t, const char *, const struct tm *);
136 time_t time (time_t *);
137 
138 #ifndef _ANSI_SOURCE
139 void tzset (void);
140 #endif /* not ANSI */
141 
142 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
143 char *asctime_r (const struct tm *, char *);
144 char *ctime_r (const time_t *, char *);
145 struct tm *gmtime_r (const time_t *, struct tm *);
146 struct tm *localtime_r (const time_t *, struct tm *);
147 char *strptime (const char *, const char *, struct tm *);
148 char *timezone (int, int);
149 void tzsetwall (void);
150 time_t timelocal (struct tm * const);
151 time_t timegm (struct tm * const);
152 #endif /* neither ANSI nor POSIX */
153 
154 #if !defined(_ANSI_SOURCE) && defined(_P1003_1B_VISIBLE_HISTORICALLY)
155 /* Introduced in POSIX 1003.1b-1993, not part of 1003.1-1990. */
156 int clock_getres (clockid_t, struct timespec *);
157 int clock_gettime (clockid_t, struct timespec *);
158 int clock_settime (clockid_t, const struct timespec *);
159 int nanosleep (const struct timespec *, struct timespec *);
160 #endif /* neither ANSI nor POSIX */
161 __END_DECLS
162 
163 #endif /* !_TIME_H_ */
164