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 37/* 38 */ 39 40#ifndef _TIME_H_ 41#define _TIME_H_ 42 43#include <sys/cdefs.h> 44#include <sys/_null.h> 45#include <sys/_types.h> 46#include <sys/_clock_id.h> 47 48#if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE 49/* 50 * Frequency of the clock ticks reported by times(). Deprecated - use 51 * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.) 52 */ 53#define CLK_TCK 128 54#endif 55 56/* Frequency of the clock ticks reported by clock(). */ 57#define CLOCKS_PER_SEC 128 58 59#ifndef _CLOCK_T_DECLARED 60typedef __clock_t clock_t; 61#define _CLOCK_T_DECLARED 62#endif 63 64#ifndef _TIME_T_DECLARED 65typedef __time_t time_t; 66#define _TIME_T_DECLARED 67#endif 68 69#ifndef _SIZE_T_DECLARED 70typedef __size_t size_t; 71#define _SIZE_T_DECLARED 72#endif 73 74#if __POSIX_VISIBLE >= 199309 75/* 76 * New in POSIX 1003.1b-1993. 77 */ 78#ifndef _CLOCKID_T_DECLARED 79typedef __clockid_t clockid_t; 80#define _CLOCKID_T_DECLARED 81#endif 82 83#ifndef _TIMER_T_DECLARED 84typedef __timer_t timer_t; 85#define _TIMER_T_DECLARED 86#endif 87 88#include <sys/timespec.h> 89#endif /* __POSIX_VISIBLE >= 199309 */ 90 91#if __POSIX_VISIBLE >= 200112 92#ifndef _PID_T_DECLARED 93typedef __pid_t pid_t; 94#define _PID_T_DECLARED 95#endif 96#endif 97 98struct tm { 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 */ 110}; 111 112#if __POSIX_VISIBLE 113extern char *tzname[]; 114#endif 115 116__BEGIN_DECLS 117char *asctime(const struct tm *); 118clock_t clock(void); 119char *ctime(const time_t *); 120#ifndef _STANDALONE 121double difftime(time_t, time_t); 122#endif 123/* XXX missing: getdate() */ 124struct tm *gmtime(const time_t *); 125struct tm *localtime(const time_t *); 126time_t mktime(struct tm *); 127size_t strftime(char * __restrict, size_t, const char * __restrict, 128 const struct tm * __restrict); 129time_t time(time_t *); 130#if __POSIX_VISIBLE >= 200112 131struct sigevent; 132int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict); 133int timer_delete(timer_t); 134int timer_gettime(timer_t, struct itimerspec *); 135int timer_getoverrun(timer_t); 136int timer_settime(timer_t, int, const struct itimerspec *__restrict, 137 struct itimerspec *__restrict); 138#endif 139#if __POSIX_VISIBLE 140void tzset(void); 141#endif 142 143#if __POSIX_VISIBLE >= 199309 144int clock_getres(clockid_t, struct timespec *); 145int clock_gettime(clockid_t, struct timespec *); 146int clock_settime(clockid_t, const struct timespec *); 147int nanosleep(const struct timespec *, struct timespec *); 148#endif /* __POSIX_VISIBLE >= 199309 */ 149 150#if __POSIX_VISIBLE >= 200112 151int clock_getcpuclockid(pid_t, clockid_t *); 152int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *); 153#endif 154 155#if __POSIX_VISIBLE >= 199506 156char *asctime_r(const struct tm *, char *); 157char *ctime_r(const time_t *, char *); 158struct tm *gmtime_r(const time_t *, struct tm *); 159struct tm *localtime_r(const time_t *, struct tm *); 160#endif 161 162#if __XSI_VISIBLE 163char *strptime(const char * __restrict, const char * __restrict, 164 struct tm * __restrict); 165extern long timezone; 166extern int daylight; 167#endif 168 169#if __BSD_VISIBLE 170time_t timelocal(struct tm * const); 171time_t timegm(struct tm * const); 172int timer_oshandle_np(timer_t timerid); 173time_t time2posix(time_t t); 174time_t posix2time(time_t t); 175#endif /* __BSD_VISIBLE */ 176 177#if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_) 178#include <xlocale/_time.h> 179#endif 180 181#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 2011 || \ 182 (defined(__cplusplus) && __cplusplus >= 201703) 183#include <sys/_timespec.h> 184/* ISO/IEC 9899:2011 7.27.2.5 The timespec_get function */ 185#define TIME_UTC 1 /* time elapsed since epoch */ 186int timespec_get(struct timespec *ts, int base); 187#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 2023 188/* ISO/IEC 9899:2024 7.29.1 Components of time */ 189#define TIME_MONOTONIC 2 /* monotonic time */ 190/* ISO/IEC 9899:2024 7.29.2.7 The timespec_getres function */ 191int timespec_getres(struct timespec *, int); 192#endif 193#endif 194 195__END_DECLS 196 197#endif /* !_TIME_H_ */ 198