1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)time.h 8.3 (Berkeley) 1/21/94 35 */ 36 37 /* 38 * $FreeBSD: head/include/time.h 245428 2013-01-14 18:01:19Z dim $ 39 */ 40 41 #ifndef _TIME_H_ 42 #define _TIME_H_ 43 44 #include <sys/cdefs.h> 45 #include <sys/_null.h> 46 #include <sys/stdint.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 ((clock_t)128) 58 59 #ifndef _CLOCK_T_DECLARED 60 #define _CLOCK_T_DECLARED 61 typedef __clock_t clock_t; 62 #endif 63 64 #ifndef _TIME_T_DECLARED 65 #define _TIME_T_DECLARED 66 typedef __time_t time_t; 67 #endif 68 69 #ifndef _SIZE_T_DECLARED 70 #define _SIZE_T_DECLARED 71 typedef __size_t size_t; 72 #endif 73 74 #if __POSIX_VISIBLE >= 199309 75 /* 76 * New in POSIX 1003.1b-1993. 77 */ 78 #include <sys/timespec.h> 79 #ifndef _CLOCKID_T_DECLARED 80 #define _CLOCKID_T_DECLARED 81 typedef __clockid_t clockid_t; 82 #endif 83 84 #ifndef _TIMER_T_DECLARED 85 #define _TIMER_T_DECLARED 86 typedef __timer_t timer_t; 87 #endif 88 #elif __ISO_C_VISIBLE >= 2011 89 #include <sys/_timespec.h> 90 #endif /* __POSIX_VISIBLE >= 199309 */ 91 92 #if __POSIX_VISIBLE >= 200112 93 #ifndef _PID_T_DECLARED 94 #define _PID_T_DECLARED 95 typedef __pid_t pid_t; 96 #endif 97 #endif 98 99 #if __BSD_VISIBLE 100 #ifndef _LWPID_T_DECLARED 101 #define _LWPID_T_DECLARED 102 typedef __pid_t lwpid_t; /* light weight process id */ 103 #endif 104 #endif 105 106 /* These macros are also in sys/time.h. */ 107 #if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 199309 108 #define CLOCK_REALTIME 0 109 #ifdef __BSD_VISIBLE 110 #define CLOCK_VIRTUAL 1 111 #define CLOCK_PROF 2 112 #endif 113 #define CLOCK_MONOTONIC 4 114 #define CLOCK_UPTIME 5 /* FreeBSD-specific. */ 115 #define CLOCK_UPTIME_PRECISE 7 /* FreeBSD-specific. */ 116 #define CLOCK_UPTIME_FAST 8 /* FreeBSD-specific. */ 117 #define CLOCK_REALTIME_PRECISE 9 /* FreeBSD-specific. */ 118 #define CLOCK_REALTIME_FAST 10 /* FreeBSD-specific. */ 119 #define CLOCK_MONOTONIC_PRECISE 11 /* FreeBSD-specific. */ 120 #define CLOCK_MONOTONIC_FAST 12 /* FreeBSD-specific. */ 121 #define CLOCK_SECOND 13 /* FreeBSD-specific. */ 122 #define CLOCK_THREAD_CPUTIME_ID 14 123 #define CLOCK_PROCESS_CPUTIME_ID 15 124 #endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 199309 */ 125 126 #if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 199309 127 #if __BSD_VISIBLE 128 #define TIMER_RELTIME 0x0 /* relative timer */ 129 #endif 130 #define TIMER_ABSTIME 0x1 /* absolute timer */ 131 #endif /* !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 199309 */ 132 133 #if __ISO_C_VISIBLE >= 2011 134 /* for timespec_get() */ 135 #define TIME_UTC 1 136 #endif 137 138 struct tm { 139 int tm_sec; /* seconds after the minute [0-60] */ 140 int tm_min; /* minutes after the hour [0-59] */ 141 int tm_hour; /* hours since midnight [0-23] */ 142 int tm_mday; /* day of the month [1-31] */ 143 int tm_mon; /* months since January [0-11] */ 144 int tm_year; /* years since 1900 */ 145 int tm_wday; /* days since Sunday [0-6] */ 146 int tm_yday; /* days since January 1 [0-365] */ 147 int tm_isdst; /* Daylight Savings Time flag */ 148 long tm_gmtoff; /* offset from UTC in seconds */ 149 char *tm_zone; /* timezone abbreviation */ 150 }; 151 152 #if __POSIX_VISIBLE 153 extern char *tzname[]; 154 #endif 155 156 __BEGIN_DECLS 157 char *asctime(const struct tm *); 158 clock_t clock(void); 159 char *ctime(const time_t *); 160 double difftime(time_t, time_t); 161 #if 0 /* XXX missing */ 162 struct tm *getdate(const char *); 163 #endif 164 struct tm *gmtime(const time_t *); 165 struct tm *localtime(const time_t *); 166 time_t mktime(struct tm *); 167 size_t strftime(char * __restrict, size_t, const char * __restrict, 168 const struct tm * __restrict) __strftimelike(3, 0); 169 time_t time(time_t *); 170 171 #if __POSIX_VISIBLE 172 void tzset(void); 173 #endif 174 175 #if __POSIX_VISIBLE >= 199309 176 int clock_getres(clockid_t, struct timespec *); 177 int clock_gettime(clockid_t, struct timespec *); 178 int clock_settime(clockid_t, const struct timespec *); 179 int nanosleep(const struct timespec *, struct timespec *); 180 #endif /* __POSIX_VISIBLE >= 199309 */ 181 182 #if __POSIX_VISIBLE >= 199506 183 char *asctime_r(const struct tm *, char *); 184 char *ctime_r(const time_t *, char *); 185 struct tm *gmtime_r(const time_t *, struct tm *); 186 struct tm *localtime_r(const time_t *, struct tm *); 187 #endif 188 189 #if __POSIX_VISIBLE >= 200112 190 int clock_getcpuclockid(pid_t, clockid_t *); 191 #if 0 /* XXX missing */ 192 struct sigevent; 193 int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *); 194 int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict); 195 int timer_delete(timer_t); 196 int timer_gettime(timer_t, struct itimerspec *); 197 int timer_getoverrun(timer_t); 198 int timer_settime(timer_t, int, const struct itimerspec *__restrict, 199 struct itimerspec *__restrict); 200 #endif 201 #endif 202 203 #if __XSI_VISIBLE 204 extern int daylight; 205 extern long timezone; 206 char *strptime(const char * __restrict, const char * __restrict, 207 struct tm * __restrict); 208 #endif 209 210 #if __BSD_VISIBLE 211 int getcpuclockid(pid_t, lwpid_t, clockid_t *); 212 void tzsetwall(void); 213 time_t timelocal(struct tm * const); 214 time_t timegm(struct tm * const); 215 #endif /* __BSD_VISIBLE */ 216 217 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_) 218 #include <xlocale/_time.h> 219 #endif 220 221 #if __ISO_C_VISIBLE >= 2011 222 int timespec_get(struct timespec *ts, int base); 223 #endif 224 __END_DECLS 225 226 #endif /* !_TIME_H_ */ 227