1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 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. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 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. 23 * 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 34 * SUCH DAMAGE. 35 * 36 * @(#)time.h 8.3 (Berkeley) 1/21/94 37 */ 38 39 /* 40 * $FreeBSD$ 41 */ 42 43 #ifndef _TIME_H_ 44 #define _TIME_H_ 45 46 #include <sys/cdefs.h> 47 #include <sys/_null.h> 48 #include <sys/_types.h> 49 50 #if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE 51 /* 52 * Frequency of the clock ticks reported by times(). Deprecated - use 53 * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.) 54 */ 55 #define CLK_TCK 128 56 #endif 57 58 /* Frequency of the clock ticks reported by clock(). */ 59 #define CLOCKS_PER_SEC 128 60 61 #ifndef _CLOCK_T_DECLARED 62 typedef __clock_t clock_t; 63 #define _CLOCK_T_DECLARED 64 #endif 65 66 #ifndef _TIME_T_DECLARED 67 typedef __time_t time_t; 68 #define _TIME_T_DECLARED 69 #endif 70 71 #ifndef _SIZE_T_DECLARED 72 typedef __size_t size_t; 73 #define _SIZE_T_DECLARED 74 #endif 75 76 #if __POSIX_VISIBLE >= 199309 77 /* 78 * New in POSIX 1003.1b-1993. 79 */ 80 #ifndef _CLOCKID_T_DECLARED 81 typedef __clockid_t clockid_t; 82 #define _CLOCKID_T_DECLARED 83 #endif 84 85 #ifndef _TIMER_T_DECLARED 86 typedef __timer_t timer_t; 87 #define _TIMER_T_DECLARED 88 #endif 89 90 #include <sys/timespec.h> 91 #endif /* __POSIX_VISIBLE >= 199309 */ 92 93 #if __POSIX_VISIBLE >= 200112 94 #ifndef _PID_T_DECLARED 95 typedef __pid_t pid_t; 96 #define _PID_T_DECLARED 97 #endif 98 #endif 99 100 /* These macros are also in sys/time.h. */ 101 #if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 102 #define CLOCK_REALTIME 0 103 #ifdef __BSD_VISIBLE 104 #define CLOCK_VIRTUAL 1 105 #define CLOCK_PROF 2 106 #endif 107 #define CLOCK_MONOTONIC 4 108 #define CLOCK_UPTIME 5 /* FreeBSD-specific. */ 109 #define CLOCK_UPTIME_PRECISE 7 /* FreeBSD-specific. */ 110 #define CLOCK_UPTIME_FAST 8 /* FreeBSD-specific. */ 111 #define CLOCK_REALTIME_PRECISE 9 /* FreeBSD-specific. */ 112 #define CLOCK_REALTIME_FAST 10 /* FreeBSD-specific. */ 113 #define CLOCK_MONOTONIC_PRECISE 11 /* FreeBSD-specific. */ 114 #define CLOCK_MONOTONIC_FAST 12 /* FreeBSD-specific. */ 115 #define CLOCK_SECOND 13 /* FreeBSD-specific. */ 116 #define CLOCK_THREAD_CPUTIME_ID 14 117 #define CLOCK_PROCESS_CPUTIME_ID 15 118 #endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 */ 119 120 #if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112 121 #if __BSD_VISIBLE 122 #define TIMER_RELTIME 0x0 /* relative timer */ 123 #endif 124 #define TIMER_ABSTIME 0x1 /* absolute timer */ 125 #endif /* !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112 */ 126 127 struct tm { 128 int tm_sec; /* seconds after the minute [0-60] */ 129 int tm_min; /* minutes after the hour [0-59] */ 130 int tm_hour; /* hours since midnight [0-23] */ 131 int tm_mday; /* day of the month [1-31] */ 132 int tm_mon; /* months since January [0-11] */ 133 int tm_year; /* years since 1900 */ 134 int tm_wday; /* days since Sunday [0-6] */ 135 int tm_yday; /* days since January 1 [0-365] */ 136 int tm_isdst; /* Daylight Savings Time flag */ 137 long tm_gmtoff; /* offset from UTC in seconds */ 138 char *tm_zone; /* timezone abbreviation */ 139 }; 140 141 #if __POSIX_VISIBLE 142 extern char *tzname[]; 143 #endif 144 145 __BEGIN_DECLS 146 char *asctime(const struct tm *); 147 clock_t clock(void); 148 char *ctime(const time_t *); 149 #ifndef _STANDALONE 150 double difftime(time_t, time_t); 151 #endif 152 /* XXX missing: getdate() */ 153 struct tm *gmtime(const time_t *); 154 struct tm *localtime(const time_t *); 155 time_t mktime(struct tm *); 156 size_t strftime(char * __restrict, size_t, const char * __restrict, 157 const struct tm * __restrict); 158 time_t time(time_t *); 159 #if __POSIX_VISIBLE >= 200112 160 struct sigevent; 161 int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict); 162 int timer_delete(timer_t); 163 int timer_gettime(timer_t, struct itimerspec *); 164 int timer_getoverrun(timer_t); 165 int timer_settime(timer_t, int, const struct itimerspec *__restrict, 166 struct itimerspec *__restrict); 167 #endif 168 #if __POSIX_VISIBLE 169 void tzset(void); 170 #endif 171 172 #if __POSIX_VISIBLE >= 199309 173 int clock_getres(clockid_t, struct timespec *); 174 int clock_gettime(clockid_t, struct timespec *); 175 int clock_settime(clockid_t, const struct timespec *); 176 int nanosleep(const struct timespec *, struct timespec *); 177 #endif /* __POSIX_VISIBLE >= 199309 */ 178 179 #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 #endif 183 184 #if __POSIX_VISIBLE >= 199506 185 char *asctime_r(const struct tm *, char *); 186 char *ctime_r(const time_t *, char *); 187 struct tm *gmtime_r(const time_t *, struct tm *); 188 struct tm *localtime_r(const time_t *, struct tm *); 189 #endif 190 191 #if __XSI_VISIBLE 192 char *strptime(const char * __restrict, const char * __restrict, 193 struct tm * __restrict); 194 #endif 195 196 #if __BSD_VISIBLE 197 char *timezone(int, int); /* XXX XSI conflict */ 198 void tzsetwall(void); 199 time_t timelocal(struct tm * const); 200 time_t timegm(struct tm * const); 201 int timer_oshandle_np(timer_t timerid); 202 time_t time2posix(time_t t); 203 time_t posix2time(time_t t); 204 #endif /* __BSD_VISIBLE */ 205 206 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_) 207 #include <xlocale/_time.h> 208 #endif 209 210 #if defined(__BSD_VISIBLE) || __ISO_C_VISIBLE >= 2011 || \ 211 (defined(cplusplus) && cplusplus >= 201703) 212 #include <sys/_timespec.h> 213 /* ISO/IEC 9899:201x 7.27.2.5 The timespec_get function */ 214 #define TIME_UTC 1 /* time elapsed since epoch */ 215 int timespec_get(struct timespec *ts, int base); 216 #endif 217 218 __END_DECLS 219 220 #endif /* !_TIME_H_ */ 221