1 /* $NetBSD: time.h,v 1.29 2002/06/30 09:45:39 bjh21 Exp $ */ 2 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. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)time.h 8.3 (Berkeley) 1/21/94 41 */ 42 43 #ifndef _TIME_H_ 44 #define _TIME_H_ 45 46 #include <sys/cdefs.h> 47 #include <sys/featuretest.h> 48 #include <machine/ansi.h> 49 50 #include <sys/null.h> 51 52 #ifdef _BSD_CLOCK_T_ 53 typedef _BSD_CLOCK_T_ clock_t; 54 #undef _BSD_CLOCK_T_ 55 #endif 56 57 #ifdef _BSD_TIME_T_ 58 typedef _BSD_TIME_T_ time_t; 59 #undef _BSD_TIME_T_ 60 #endif 61 62 #ifdef _BSD_SIZE_T_ 63 typedef _BSD_SIZE_T_ size_t; 64 #undef _BSD_SIZE_T_ 65 #endif 66 67 #ifdef _BSD_CLOCKID_T_ 68 typedef _BSD_CLOCKID_T_ clockid_t; 69 #undef _BSD_CLOCKID_T_ 70 #endif 71 72 #ifdef _BSD_TIMER_T_ 73 typedef _BSD_TIMER_T_ timer_t; 74 #undef _BSD_TIMER_T_ 75 #endif 76 77 #define CLOCKS_PER_SEC 100 78 79 struct tm { 80 int tm_sec; /* seconds after the minute [0-61] */ 81 int tm_min; /* minutes after the hour [0-59] */ 82 int tm_hour; /* hours since midnight [0-23] */ 83 int tm_mday; /* day of the month [1-31] */ 84 int tm_mon; /* months since January [0-11] */ 85 int tm_year; /* years since 1900 */ 86 int tm_wday; /* days since Sunday [0-6] */ 87 int tm_yday; /* days since January 1 [0-365] */ 88 int tm_isdst; /* Daylight Savings Time flag */ 89 long tm_gmtoff; /* offset from UTC in seconds */ 90 __aconst char *tm_zone; /* timezone abbreviation */ 91 }; 92 93 __BEGIN_DECLS 94 char *asctime __P((const struct tm *)); 95 clock_t clock __P((void)); 96 char *ctime __P((const time_t *)); 97 double difftime __P((time_t, time_t)); 98 struct tm *gmtime __P((const time_t *)); 99 struct tm *localtime __P((const time_t *)); 100 time_t mktime __P((struct tm *)); 101 size_t strftime __P((char * __restrict, size_t, const char * __restrict, 102 const struct tm * __restrict)); 103 time_t time __P((time_t *)); 104 105 #if !defined(_ANSI_SOURCE) 106 107 #ifdef __LIBC12_SOURCE__ 108 #define CLK_TCK 100 109 #else 110 111 /* 112 * CLK_TCK uses libc's internal __sysconf() to retrieve the machine's 113 * HZ. The value of _SC_CLK_TCK is 39 -- we hard code it so we do not 114 * need to include unistd.h 115 */ 116 long __sysconf __P((int)); 117 #define CLK_TCK (__sysconf(39)) 118 119 #endif 120 121 extern __aconst char *tzname[2]; 122 void tzset __P((void)); 123 124 /* 125 * X/Open Portability Guide >= Issue 4 126 */ 127 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \ 128 (_XOPEN_SOURCE - 0) >= 4 129 extern int daylight; 130 #ifndef __LIBC12_SOURCE__ 131 extern long int timezone __RENAME(__timezone13); 132 #endif 133 char *strptime __P((const char * __restrict, const char * __restrict, 134 struct tm * __restrict)); 135 #endif 136 137 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \ 138 (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 139 #include <sys/time.h> /* XXX for struct timespec */ 140 struct sigevent; 141 struct itimerspec; 142 int clock_getres __P((clockid_t, struct timespec *)); 143 int clock_gettime __P((clockid_t, struct timespec *)); 144 int clock_settime __P((clockid_t, const struct timespec *)); 145 int nanosleep __P((const struct timespec *, struct timespec *)); 146 int timer_create __P((clockid_t, struct sigevent *, timer_t *)); 147 int timer_delete __P((timer_t)); 148 int timer_getoverrun __P((timer_t)); 149 int timer_gettime __P((timer_t, struct itimerspec *)); 150 int timer_settime __P((timer_t, int, const struct itimerspec *, 151 struct itimerspec *)); 152 #endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || ... */ 153 154 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \ 155 (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 156 defined(_REENTRANT) 157 char *asctime_r __P((const struct tm * __restrict, char * __restrict)); 158 char *ctime_r __P((const time_t *, char *)); 159 struct tm *gmtime_r __P((const time_t * __restrict, struct tm * __restrict)); 160 struct tm *localtime_r __P((const time_t * __restrict, struct tm * __restrict)); 161 #endif 162 163 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 164 time_t time2posix __P((time_t)); 165 time_t posix2time __P((time_t)); 166 time_t timegm __P((struct tm *const)); 167 time_t timeoff __P((struct tm *const, const long)); 168 time_t timelocal __P((struct tm *const)); 169 #ifdef __LIBC12_SOURCE__ 170 char *timezone __P((int, int)); 171 #endif 172 void tzsetwall __P((void)); 173 struct tm *offtime __P((const time_t *const, const long)); 174 #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 175 176 #endif /* !_ANSI_SOURCE */ 177 __END_DECLS 178 179 #endif /* !_TIME_H_ */ 180