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_ 51 typedef __clock_t clock_t; 52 #endif 53 54 #ifndef _TIME_T_DEFINED_ 55 #define _TIME_T_DEFINED_ 56 typedef __time_t time_t; 57 #endif 58 59 #ifndef _SIZE_T_DEFINED_ 60 #define _SIZE_T_DEFINED_ 61 typedef __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_ 75 typedef __clockid_t clockid_t; 76 #endif 77 78 #ifndef _TIMER_T_DEFINED_ 79 #define _TIMER_T_DEFINED_ 80 typedef __timer_t timer_t; 81 #endif 82 #endif 83 84 #if __POSIX_VISIBLE >= 200112 85 #ifndef _PID_T_DEFINED_ 86 #define _PID_T_DEFINED_ 87 typedef __pid_t pid_t; 88 #endif 89 #endif 90 91 #if __POSIX_VISIBLE >= 200809 92 #ifndef _LOCALE_T_DEFINED_ 93 #define _LOCALE_T_DEFINED_ 94 typedef void *locale_t; 95 #endif 96 #endif 97 98 struct 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 113 char *asctime(const struct tm *); 114 clock_t clock(void); 115 char *ctime(const time_t *); 116 double difftime(time_t, time_t); 117 struct tm *gmtime(const time_t *); 118 struct tm *localtime(const time_t *); 119 time_t mktime(struct tm *); 120 size_t strftime(char *__restrict, size_t, const char *__restrict, 121 const struct tm *__restrict) 122 __attribute__ ((__bounded__(__string__,1,2))); 123 time_t time(time_t *); 124 125 #if __XPG_VISIBLE >= 300 126 extern int daylight; 127 extern long timezone; 128 #endif 129 #if __XPG_VISIBLE >= 400 130 char *strptime(const char *__restrict, const char *__restrict, 131 struct tm *__restrict); 132 #endif 133 134 #if __POSIX_VISIBLE >= 199506 135 char *asctime_r(const struct tm *__restrict, char *__restrict) 136 __attribute__ ((__bounded__(__minbytes__,2,26))); 137 char *ctime_r(const time_t *, char *) 138 __attribute__ ((__bounded__(__minbytes__,2,26))); 139 struct tm *gmtime_r(const time_t *__restrict, struct tm *__restrict); 140 struct tm *localtime_r(const time_t *__restrict, struct tm *__restrict); 141 #endif 142 143 #if __POSIX_VISIBLE 144 extern char *tzname[2]; 145 void tzset(void); 146 #endif 147 148 #if __POSIX_VISIBLE >= 199309 149 int clock_getres(clockid_t, struct timespec *); 150 int clock_gettime(clockid_t, struct timespec *); 151 int clock_settime(clockid_t, const struct timespec *); 152 int nanosleep(const struct timespec *, struct timespec *); 153 #endif 154 155 #if __POSIX_VISIBLE >= 200112 156 int clock_getcpuclockid(pid_t, clockid_t *); 157 #endif 158 159 #if __POSIX_VISIBLE >= 200809 160 size_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 */ 167 int timespec_get(struct timespec *_ts, int _base); 168 #endif 169 170 #if __BSD_VISIBLE 171 void tzsetwall(void); 172 time_t timelocal(struct tm *); 173 time_t timegm(struct tm *); 174 time_t timeoff(struct tm *, const long); 175 #endif 176 __END_DECLS 177 178 #endif /* !_TIME_H_ */ 179