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
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. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * @(#)time.h 8.3 (Berkeley) 1/21/94
38 * $FreeBSD: head/include/time.h 245428 2013-01-14 18:01:19Z dim $
44 #include <sys/cdefs.h>
45 #include <sys/_null.h>
46 #include <machine/stdint.h>
48 #if __BSD_VISIBLE || (__POSIX_VISIBLE && __POSIX_VISIBLE < 200112)
50 * Frequency of the clock ticks reported by times(). Deprecated - use
51 * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.)
56 /* Frequency of the clock ticks reported by clock(). */
57 #define CLOCKS_PER_SEC ((clock_t)128)
59 #ifndef _CLOCK_T_DECLARED
60 #define _CLOCK_T_DECLARED
61 typedef __clock_t
clock_t;
64 #ifndef _TIME_T_DECLARED
65 #define _TIME_T_DECLARED
66 typedef __time_t
time_t;
69 #ifndef _SIZE_T_DECLARED
70 #define _SIZE_T_DECLARED
71 typedef __size_t
size_t;
74 #if __POSIX_VISIBLE >= 199309
76 * New in POSIX 1003.1b-1993.
78 #include <sys/timespec.h>
79 #ifndef _CLOCKID_T_DECLARED
80 #define _CLOCKID_T_DECLARED
81 typedef __clockid_t clockid_t
;
84 #ifndef _TIMER_T_DECLARED
85 #define _TIMER_T_DECLARED
86 typedef __timer_t timer_t
;
88 #endif /* __POSIX_VISIBLE >= 199309 */
90 #if __POSIX_VISIBLE >= 200112
91 #ifndef _PID_T_DECLARED
92 #define _PID_T_DECLARED
93 typedef __pid_t pid_t
;
98 #ifndef _LWPID_T_DECLARED
99 #define _LWPID_T_DECLARED
100 typedef __pid_t lwpid_t
; /* light weight process id */
104 /* These macros are also in sys/time.h. */
105 #if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 199309
106 #define CLOCK_REALTIME 0
108 #define CLOCK_VIRTUAL 1
111 #define CLOCK_MONOTONIC 4
112 #define CLOCK_UPTIME 5 /* FreeBSD-specific. */
113 #define CLOCK_UPTIME_PRECISE 7 /* FreeBSD-specific. */
114 #define CLOCK_UPTIME_FAST 8 /* FreeBSD-specific. */
115 #define CLOCK_REALTIME_PRECISE 9 /* FreeBSD-specific. */
116 #define CLOCK_REALTIME_FAST 10 /* FreeBSD-specific. */
117 #define CLOCK_MONOTONIC_PRECISE 11 /* FreeBSD-specific. */
118 #define CLOCK_MONOTONIC_FAST 12 /* FreeBSD-specific. */
119 #define CLOCK_SECOND 13 /* FreeBSD-specific. */
120 #define CLOCK_THREAD_CPUTIME_ID 14
121 #define CLOCK_PROCESS_CPUTIME_ID 15
122 #endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 199309 */
124 #if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 199309
126 #define TIMER_RELTIME 0x0 /* relative timer */
128 #define TIMER_ABSTIME 0x1 /* absolute timer */
129 #endif /* !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 199309 */
132 int tm_sec
; /* seconds after the minute [0-60] */
133 int tm_min
; /* minutes after the hour [0-59] */
134 int tm_hour
; /* hours since midnight [0-23] */
135 int tm_mday
; /* day of the month [1-31] */
136 int tm_mon
; /* months since January [0-11] */
137 int tm_year
; /* years since 1900 */
138 int tm_wday
; /* days since Sunday [0-6] */
139 int tm_yday
; /* days since January 1 [0-365] */
140 int tm_isdst
; /* Daylight Savings Time flag */
141 long tm_gmtoff
; /* offset from UTC in seconds */
142 char *tm_zone
; /* timezone abbreviation */
146 extern char *tzname
[];
150 char *asctime(const struct tm
*);
152 char *ctime(const time_t *);
153 double difftime(time_t, time_t);
154 struct tm
*gmtime(const time_t *);
155 struct tm
*localtime(const time_t *);
156 time_t mktime(struct tm
*);
157 size_t strftime(char * __restrict
, size_t, const char * __restrict
,
158 const struct tm
* __restrict
) __strftimelike(3, 0);
159 time_t time(time_t *);
165 #if __POSIX_VISIBLE >= 199309
166 int clock_getres(clockid_t
, struct timespec
*);
167 int clock_gettime(clockid_t
, struct timespec
*);
168 int clock_settime(clockid_t
, const struct timespec
*);
169 int nanosleep(const struct timespec
*, struct timespec
*);
170 #endif /* __POSIX_VISIBLE >= 199309 */
172 #if __POSIX_VISIBLE >= 199506
173 char *asctime_r(const struct tm
* __restrict
, char * __restrict
);
174 char *ctime_r(const time_t *, char *);
175 struct tm
*gmtime_r(const time_t * __restrict
, struct tm
* __restrict
);
176 struct tm
*localtime_r(const time_t * __restrict
, struct tm
* __restrict
);
179 #if __POSIX_VISIBLE >= 200112
180 int clock_getcpuclockid(pid_t
, clockid_t
*);
181 int clock_nanosleep(clockid_t
, int, const struct timespec
*, struct timespec
*);
182 #if 0 /* XXX missing */
184 int timer_create(clockid_t
, struct sigevent
*__restrict
, timer_t
*__restrict
);
185 int timer_delete(timer_t
);
186 int timer_gettime(timer_t
, struct itimerspec
*);
187 int timer_getoverrun(timer_t
);
188 int timer_settime(timer_t
, int, const struct itimerspec
*__restrict
,
189 struct itimerspec
*__restrict
);
195 extern int getdate_err
;
196 extern long timezone
;
197 struct tm
*getdate(const char *) __strftimelike(1, 0);
198 char *strptime(const char * __restrict
, const char * __restrict
,
199 struct tm
* __restrict
) __strftimelike(2, 0);
203 int getcpuclockid(pid_t
, lwpid_t
, clockid_t
*);
204 void tzsetwall(void);
205 time_t timelocal(struct tm
* const);
206 time_t timegm(struct tm
* const);
207 time_t time2posix(time_t);
208 time_t posix2time(time_t);
209 struct tm
*offtime(const time_t * const, const long);
210 time_t timeoff(struct tm
* const, const long);
211 #endif /* __BSD_VISIBLE */
213 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
214 #include <xlocale/_time.h>
217 #if __ISO_C_VISIBLE >= 2011 || (defined(__cplusplus) && __cplusplus >= 201703)
218 #include <sys/_timespec.h>
220 int timespec_get(struct timespec
*ts
, int base
);
224 #endif /* !_TIME_H_ */