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[dragonfly.git] / include / time.h
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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.
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.
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.
38 * @(#)time.h 8.3 (Berkeley) 1/21/94
41 #ifndef _TIME_H_
42 #define _TIME_H_
44 #include <sys/cdefs.h>
46 #include <machine/stdint.h>
47 #include <machine/uvparam.h>
48 #include <sys/_posix.h>
50 #if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE
52 * Frequency of the clock ticks reported by times(). Deprecated - use
53 * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.)
55 #define CLK_TCK _BSD_CLK_TCK_
56 #endif
58 /* Frequency of the clock ticks reported by clock(). */
59 #define CLOCKS_PER_SEC _BSD_CLOCKS_PER_SEC_
61 #include <sys/_null.h>
63 #ifndef _CLOCK_T_DECLARED
64 #define _CLOCK_T_DECLARED
65 typedef __clock_t clock_t;
66 #endif
68 #ifndef _TIME_T_DECLARED
69 #define _TIME_T_DECLARED
70 typedef __time_t time_t;
71 #endif
73 #ifndef _SIZE_T_DECLARED
74 #define _SIZE_T_DECLARED
75 typedef __size_t size_t;
76 #endif
78 #if __POSIX_VISIBLE >= 199309
80 * New in POSIX 1003.1b-1993.
82 #ifndef _CLOCKID_T_DECLARED
83 #define _CLOCKID_T_DECLARED
84 typedef __clockid_t clockid_t;
85 #endif
87 #ifndef _TIMER_T_DECLARED
88 #define _TIMER_T_DECLARED
89 typedef __timer_t timer_t;
90 #endif
92 #include <sys/_timespec.h>
94 #endif /* __POSIX_VISIBLE >= 199309 */
96 /* These macros are also in sys/time.h. */
97 #if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112
98 #define CLOCK_REALTIME 0
99 #ifdef __BSD_VISIBLE
100 #define CLOCK_VIRTUAL 1
101 #define CLOCK_PROF 2
102 #endif
103 #define CLOCK_MONOTONIC 4 /* from freebsd */
104 #define CLOCK_UPTIME 5 /* from freebsd */
105 #define CLOCK_UPTIME_PRECISE 7 /* from freebsd */
106 #define CLOCK_UPTIME_FAST 8 /* from freebsd */
107 #define CLOCK_REALTIME_PRECISE 9 /* from freebsd */
108 #define CLOCK_REALTIME_FAST 10 /* from freebsd */
109 #define CLOCK_MONOTONIC_PRECISE 11 /* from freebsd */
110 #define CLOCK_MONOTONIC_FAST 12 /* from freebsd */
111 #define CLOCK_SECOND 13 /* from freebsd */
113 #endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 */
115 #if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112
116 #if __BSD_VISIBLE
117 #define TIMER_RELTIME 0x0 /* relative timer */
118 #endif
119 #define TIMER_ABSTIME 0x1 /* absolute timer */
120 #endif
122 struct tm {
123 int tm_sec; /* seconds after the minute [0-60] */
124 int tm_min; /* minutes after the hour [0-59] */
125 int tm_hour; /* hours since midnight [0-23] */
126 int tm_mday; /* day of the month [1-31] */
127 int tm_mon; /* months since January [0-11] */
128 int tm_year; /* years since 1900 */
129 int tm_wday; /* days since Sunday [0-6] */
130 int tm_yday; /* days since January 1 [0-365] */
131 int tm_isdst; /* Daylight Savings Time flag */
132 long tm_gmtoff; /* offset from CUT in seconds */
133 char *tm_zone; /* timezone abbreviation */
136 #if __POSIX_VISIBLE
137 extern char *tzname[];
138 #endif
140 __BEGIN_DECLS
141 char *asctime (const struct tm *);
142 clock_t clock (void);
143 char *ctime (const time_t *);
144 double difftime (time_t, time_t);
145 struct tm *gmtime (const time_t *);
146 struct tm *localtime (const time_t *);
147 time_t mktime (struct tm *);
148 size_t strftime (char * __restrict, size_t, const char * __restrict,
149 const struct tm * __restrict);
150 time_t time (time_t *);
152 #if __POSIX_VISIBLE
153 void tzset (void);
154 #endif
156 #if __POSIX_VISIBLE >= 199506
157 char *asctime_r (const struct tm *, char *);
158 char *ctime_r (const time_t *, char *);
159 struct tm *gmtime_r (const time_t *, struct tm *);
160 struct tm *localtime_r (const time_t *, struct tm *);
161 #endif
163 #if __POSIX_VISIBLE >= 199309
164 /* Introduced in POSIX 1003.1b-1993, not part of 1003.1-1990. */
165 int clock_getres (clockid_t, struct timespec *);
166 int clock_gettime (clockid_t, struct timespec *);
167 int clock_settime (clockid_t, const struct timespec *);
168 int nanosleep (const struct timespec *, struct timespec *);
169 #endif /* __POSIX_VISIBLE >= 199309 */
171 #if __XSI_VISIBLE
172 extern int daylight;
173 extern long timezone;
174 char *strptime (const char * __restrict, const char * __restrict,
175 struct tm * __restrict);
176 #endif
178 #if __BSD_VISIBLE
179 void tzsetwall (void);
180 time_t timelocal (struct tm * const);
181 time_t timegm (struct tm * const);
182 #endif /* __BSD_VISIBLE */
183 __END_DECLS
185 #endif /* !_TIME_H_ */