xref: /dragonfly/include/time.h (revision bcb3e04d)
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 1.7 2008/06/05 17:53:10 swildner Exp $
40  */
41 
42 #ifndef _TIME_H_
43 #define	_TIME_H_
44 
45 #include <sys/cdefs.h>
46 
47 #ifndef _MACHINE_STDINT_H_
48 #include <machine/stdint.h>
49 #endif
50 #include <machine/uvparam.h>
51 #include <sys/_posix.h>
52 
53 #if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE
54 /*
55  * Frequency of the clock ticks reported by times().  Deprecated - use
56  * sysconf(_SC_CLK_TCK) instead.  (Removed in 1003.1-2001.)
57  */
58 #define	CLK_TCK		_BSD_CLK_TCK_
59 #endif
60 
61 /* Frequency of the clock ticks reported by clock().  */
62 #define	CLOCKS_PER_SEC	_BSD_CLOCKS_PER_SEC_
63 
64 #include <sys/_null.h>
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 #ifndef _SIZE_T_DECLARED
77 #define _SIZE_T_DECLARED
78 typedef	__size_t	size_t;
79 #endif
80 
81 #if __POSIX_VISIBLE >= 199309
82 /*
83  * New in POSIX 1003.1b-1993.
84  */
85 #ifndef _CLOCKID_T_DECLARED
86 #define _CLOCKID_T_DECLARED
87 typedef	__clockid_t	clockid_t;
88 #endif
89 
90 #ifndef _TIMER_T_DECLARED
91 #define _TIMER_T_DECLARED
92 typedef	__timer_t	timer_t;
93 #endif
94 
95 #include <sys/_timespec.h>
96 
97 #endif /* __POSIX_VISIBLE >= 199309 */
98 
99 /* These macros are also in sys/time.h. */
100 #if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112
101 #define CLOCK_REALTIME  0
102 #ifdef __BSD_VISIBLE
103 #define CLOCK_VIRTUAL	1
104 #define CLOCK_PROF	2
105 #endif
106 #define CLOCK_MONOTONIC	4
107 #endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 */
108 
109 #if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112
110 #if __BSD_VISIBLE
111 #define TIMER_RELTIME	0x0	/* relative timer */
112 #endif
113 #define TIMER_ABSTIME	0x1	/* absolute timer */
114 #endif
115 
116 struct tm {
117 	int	tm_sec;		/* seconds after the minute [0-60] */
118 	int	tm_min;		/* minutes after the hour [0-59] */
119 	int	tm_hour;	/* hours since midnight [0-23] */
120 	int	tm_mday;	/* day of the month [1-31] */
121 	int	tm_mon;		/* months since January [0-11] */
122 	int	tm_year;	/* years since 1900 */
123 	int	tm_wday;	/* days since Sunday [0-6] */
124 	int	tm_yday;	/* days since January 1 [0-365] */
125 	int	tm_isdst;	/* Daylight Savings Time flag */
126 	long	tm_gmtoff;	/* offset from CUT in seconds */
127 	char	*tm_zone;	/* timezone abbreviation */
128 };
129 
130 #if __POSIX_VISIBLE
131 extern char *tzname[];
132 #endif
133 
134 __BEGIN_DECLS
135 char *asctime (const struct tm *);
136 clock_t clock (void);
137 char *ctime (const time_t *);
138 double difftime (time_t, time_t);
139 struct tm *gmtime (const time_t *);
140 struct tm *localtime (const time_t *);
141 time_t mktime (struct tm *);
142 size_t strftime (char * __restrict, size_t, const char * __restrict,
143 		 const struct tm * __restrict);
144 time_t time (time_t *);
145 
146 #if __POSIX_VISIBLE
147 void tzset (void);
148 #endif
149 
150 #if __POSIX_VISIBLE >= 199506
151 char *asctime_r (const struct tm *, char *);
152 char *ctime_r (const time_t *, char *);
153 struct tm *gmtime_r (const time_t *, struct tm *);
154 struct tm *localtime_r (const time_t *, struct tm *);
155 #endif
156 
157 #if __POSIX_VISIBLE >= 199309
158 /* Introduced in POSIX 1003.1b-1993, not part of 1003.1-1990. */
159 int clock_getres (clockid_t, struct timespec *);
160 int clock_gettime (clockid_t, struct timespec *);
161 int clock_settime (clockid_t, const struct timespec *);
162 int nanosleep (const struct timespec *, struct timespec *);
163 #endif /* __POSIX_VISIBLE >= 199309 */
164 
165 #if __XSI_VISIBLE
166 extern int daylight;
167 extern long timezone;
168 char *strptime (const char * __restrict, const char * __restrict,
169 		struct tm * __restrict);
170 #endif
171 
172 #if __BSD_VISIBLE
173 void tzsetwall (void);
174 time_t timelocal (struct tm * const);
175 time_t timegm (struct tm * const);
176 #endif /* __BSD_VISIBLE */
177 __END_DECLS
178 
179 #endif /* !_TIME_H_ */
180