2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 #include <sys/cdefs.h>
44 #include <sys/_null.h>
45 #include <sys/_types.h>
46 #include <sys/_clock_id.h>
48 #if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE
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 128
59 #ifndef _CLOCK_T_DECLARED
60 typedef __clock_t clock_t;
61 #define _CLOCK_T_DECLARED
64 #ifndef _TIME_T_DECLARED
65 typedef __time_t time_t;
66 #define _TIME_T_DECLARED
69 #ifndef _SIZE_T_DECLARED
70 typedef __size_t size_t;
71 #define _SIZE_T_DECLARED
74 #if __POSIX_VISIBLE >= 199309
76 * New in POSIX 1003.1b-1993.
78 #ifndef _CLOCKID_T_DECLARED
79 typedef __clockid_t clockid_t;
80 #define _CLOCKID_T_DECLARED
83 #ifndef _TIMER_T_DECLARED
84 typedef __timer_t timer_t;
85 #define _TIMER_T_DECLARED
88 #include <sys/timespec.h>
89 #endif /* __POSIX_VISIBLE >= 199309 */
91 #if __POSIX_VISIBLE >= 200112
92 #ifndef _PID_T_DECLARED
93 typedef __pid_t pid_t;
94 #define _PID_T_DECLARED
99 int tm_sec; /* seconds after the minute [0-60] */
100 int tm_min; /* minutes after the hour [0-59] */
101 int tm_hour; /* hours since midnight [0-23] */
102 int tm_mday; /* day of the month [1-31] */
103 int tm_mon; /* months since January [0-11] */
104 int tm_year; /* years since 1900 */
105 int tm_wday; /* days since Sunday [0-6] */
106 int tm_yday; /* days since January 1 [0-365] */
107 int tm_isdst; /* Daylight Savings Time flag */
108 long tm_gmtoff; /* offset from UTC in seconds */
109 char *tm_zone; /* timezone abbreviation */
113 extern char *tzname[];
117 char *asctime(const struct tm *);
119 char *ctime(const time_t *);
121 double difftime(time_t, time_t);
123 /* XXX missing: getdate() */
124 struct tm *gmtime(const time_t *);
125 struct tm *localtime(const time_t *);
126 time_t mktime(struct tm *);
127 size_t strftime(char * __restrict, size_t, const char * __restrict,
128 const struct tm * __restrict);
129 time_t time(time_t *);
130 #if __POSIX_VISIBLE >= 200112
132 int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict);
133 int timer_delete(timer_t);
134 int timer_gettime(timer_t, struct itimerspec *);
135 int timer_getoverrun(timer_t);
136 int timer_settime(timer_t, int, const struct itimerspec *__restrict,
137 struct itimerspec *__restrict);
143 #if __POSIX_VISIBLE >= 199309
144 int clock_getres(clockid_t, struct timespec *);
145 int clock_gettime(clockid_t, struct timespec *);
146 int clock_settime(clockid_t, const struct timespec *);
147 int nanosleep(const struct timespec *, struct timespec *);
148 #endif /* __POSIX_VISIBLE >= 199309 */
150 #if __POSIX_VISIBLE >= 200112
151 int clock_getcpuclockid(pid_t, clockid_t *);
152 int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *);
155 #if __POSIX_VISIBLE >= 199506
156 char *asctime_r(const struct tm *, char *);
157 char *ctime_r(const time_t *, char *);
158 struct tm *gmtime_r(const time_t *, struct tm *);
159 struct tm *localtime_r(const time_t *, struct tm *);
163 char *strptime(const char * __restrict, const char * __restrict,
164 struct tm * __restrict);
168 char *timezone(int, int); /* XXX XSI conflict */
169 time_t timelocal(struct tm * const);
170 time_t timegm(struct tm * const);
171 int timer_oshandle_np(timer_t timerid);
172 time_t time2posix(time_t t);
173 time_t posix2time(time_t t);
174 #endif /* __BSD_VISIBLE */
176 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
177 #include <xlocale/_time.h>
180 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 2011 || \
181 (defined(__cplusplus) && __cplusplus >= 201703)
182 #include <sys/_timespec.h>
183 /* ISO/IEC 9899:2011 7.27.2.5 The timespec_get function */
184 #define TIME_UTC 1 /* time elapsed since epoch */
185 int timespec_get(struct timespec *ts, int base);
186 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 2023
187 /* ISO/IEC 9899:2024 7.29.1 Components of time */
188 #define TIME_MONOTONIC 2 /* monotonic time */
189 /* ISO/IEC 9899:2024 7.29.2.7 The timespec_getres function */
190 int timespec_getres(struct timespec *, int);
196 #endif /* !_TIME_H_ */