1/* $OpenBSD: time.h,v 1.32 2022/10/25 16:30:30 millert Exp $ */ 2/* $NetBSD: time.h,v 1.9 1994/10/26 00:56:35 cgd Exp $ */ 3 4/* 5 * Copyright (c) 1989 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * (c) UNIX System Laboratories, Inc. 9 * All or some portions of this file are derived from material licensed 10 * to the University of California by American Telephone and Telegraph 11 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 12 * the permission of UNIX System Laboratories, Inc. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. 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. 25 * 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. 37 * 38 * @(#)time.h 5.12 (Berkeley) 3/9/91 39 */ 40 41#ifndef _TIME_H_ 42#define _TIME_H_ 43 44#include <sys/cdefs.h> 45#include <sys/_null.h> 46#include <sys/_types.h> 47#include <sys/_time.h> 48 49#ifndef _CLOCK_T_DEFINED_ 50#define _CLOCK_T_DEFINED_ 51typedef __clock_t clock_t; 52#endif 53 54#ifndef _TIME_T_DEFINED_ 55#define _TIME_T_DEFINED_ 56typedef __time_t time_t; 57#endif 58 59#ifndef _SIZE_T_DEFINED_ 60#define _SIZE_T_DEFINED_ 61typedef __size_t size_t; 62#endif 63 64#if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE 65/* 66 * Frequency of the clock ticks reported by times(). Deprecated - use 67 * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.) 68 */ 69#define CLK_TCK 100 70#endif 71 72#if __POSIX_VISIBLE >= 199309 73#ifndef _CLOCKID_T_DEFINED_ 74#define _CLOCKID_T_DEFINED_ 75typedef __clockid_t clockid_t; 76#endif 77 78#ifndef _TIMER_T_DEFINED_ 79#define _TIMER_T_DEFINED_ 80typedef __timer_t timer_t; 81#endif 82#endif 83 84#if __POSIX_VISIBLE >= 200112 85#ifndef _PID_T_DEFINED_ 86#define _PID_T_DEFINED_ 87typedef __pid_t pid_t; 88#endif 89#endif 90 91#if __POSIX_VISIBLE >= 200809 92#ifndef _LOCALE_T_DEFINED_ 93#define _LOCALE_T_DEFINED_ 94typedef void *locale_t; 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 Saving Time flag */ 108 long tm_gmtoff; /* offset from UTC in seconds */ 109 char *tm_zone; /* timezone abbreviation */ 110}; 111 112__BEGIN_DECLS 113char *asctime(const struct tm *); 114clock_t clock(void); 115char *ctime(const time_t *); 116double difftime(time_t, time_t); 117struct tm *gmtime(const time_t *); 118struct tm *localtime(const time_t *); 119time_t mktime(struct tm *); 120size_t strftime(char *__restrict, size_t, const char *__restrict, 121 const struct tm *__restrict) 122 __attribute__ ((__bounded__(__string__,1,2))); 123time_t time(time_t *); 124 125#if __XPG_VISIBLE >= 300 126extern int daylight; 127extern long timezone; 128#endif 129#if __XPG_VISIBLE >= 400 130char *strptime(const char *__restrict, const char *__restrict, 131 struct tm *__restrict); 132#endif 133 134#if __POSIX_VISIBLE >= 199506 135char *asctime_r(const struct tm *__restrict, char *__restrict) 136 __attribute__ ((__bounded__(__minbytes__,2,26))); 137char *ctime_r(const time_t *, char *) 138 __attribute__ ((__bounded__(__minbytes__,2,26))); 139struct tm *gmtime_r(const time_t *__restrict, struct tm *__restrict); 140struct tm *localtime_r(const time_t *__restrict, struct tm *__restrict); 141#endif 142 143#if __POSIX_VISIBLE 144extern char *tzname[2]; 145void tzset(void); 146#endif 147 148#if __POSIX_VISIBLE >= 199309 149int clock_getres(clockid_t, struct timespec *); 150int clock_gettime(clockid_t, struct timespec *); 151int clock_settime(clockid_t, const struct timespec *); 152int nanosleep(const struct timespec *, struct timespec *); 153#endif 154 155#if __POSIX_VISIBLE >= 200112 156int clock_getcpuclockid(pid_t, clockid_t *); 157#endif 158 159#if __POSIX_VISIBLE >= 200809 160size_t strftime_l(char *__restrict, size_t, const char *__restrict, 161 const struct tm *__restrict, locale_t) 162 __attribute__ ((__bounded__(__string__,1,2))); 163#endif 164 165#if __ISO_C_VISIBLE >= 2011 166#define TIME_UTC 1 /* time elapsed since epoch */ 167int timespec_get(struct timespec *_ts, int _base); 168#endif 169 170#if __BSD_VISIBLE 171void tzsetwall(void); 172time_t timelocal(struct tm *); 173time_t timegm(struct tm *); 174time_t timeoff(struct tm *, const long); 175#endif 176__END_DECLS 177 178#endif /* !_TIME_H_ */ 179