1 /* $NetBSD: time.h,v 1.41 2012/10/02 01:42:06 christos 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. 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 * @(#)time.h 8.3 (Berkeley) 1/21/94 37 */ 38 39 #ifndef _TIME_H_ 40 #define _TIME_H_ 41 42 #include <sys/cdefs.h> 43 #include <sys/featuretest.h> 44 #include <machine/ansi.h> 45 46 #include <sys/null.h> 47 48 #ifdef _BSD_CLOCK_T_ 49 typedef _BSD_CLOCK_T_ clock_t; 50 #undef _BSD_CLOCK_T_ 51 #endif 52 53 #ifdef _BSD_TIME_T_ 54 typedef _BSD_TIME_T_ time_t; 55 #undef _BSD_TIME_T_ 56 #endif 57 58 #ifdef _BSD_SIZE_T_ 59 typedef _BSD_SIZE_T_ size_t; 60 #undef _BSD_SIZE_T_ 61 #endif 62 63 #ifdef _BSD_CLOCKID_T_ 64 typedef _BSD_CLOCKID_T_ clockid_t; 65 #undef _BSD_CLOCKID_T_ 66 #endif 67 68 #ifdef _BSD_TIMER_T_ 69 typedef _BSD_TIMER_T_ timer_t; 70 #undef _BSD_TIMER_T_ 71 #endif 72 73 #ifdef __minix 74 #define CLOCKS_PER_SEC 60 75 #else 76 #define CLOCKS_PER_SEC 100 77 #endif 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(const struct tm *); 95 clock_t clock(void); 96 #ifndef __LIBC12_SOURCE__ 97 char *ctime(const time_t *) __RENAME(__ctime50); 98 double difftime(time_t, time_t) __RENAME(__difftime50); 99 struct tm *gmtime(const time_t *) __RENAME(__gmtime50); 100 struct tm *localtime(const time_t *) __RENAME(__locatime50); 101 time_t time(time_t *) __RENAME(__time50); 102 time_t mktime(struct tm *) __RENAME(__mktime50); 103 #endif 104 size_t strftime(char * __restrict, size_t, const char * __restrict, 105 const struct tm * __restrict) 106 __attribute__((__format__(__strftime__, 3, 0))); 107 108 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 109 defined(_NETBSD_SOURCE) 110 #ifndef __LIBC12_SOURCE__ 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(int); 117 #define CLK_TCK (__sysconf(39)) 118 #endif 119 #endif 120 121 extern __aconst char *tzname[2]; 122 #ifndef __LIBC12_SOURCE__ 123 void tzset(void) __RENAME(__tzset50); 124 #endif 125 126 /* 127 * X/Open Portability Guide >= Issue 4 128 */ 129 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 130 extern int daylight; 131 #ifndef __LIBC12_SOURCE__ 132 extern long int timezone __RENAME(__timezone13); 133 #endif 134 char *strptime(const char * __restrict, const char * __restrict, 135 struct tm * __restrict); 136 #endif 137 138 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 139 defined(_NETBSD_SOURCE) 140 struct tm *getdate(const char *); 141 extern int getdate_err; 142 #endif 143 144 #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 145 defined(_NETBSD_SOURCE) 146 #include <sys/time.h> /* XXX for struct timespec */ 147 struct sigevent; 148 struct itimerspec; 149 int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *); 150 #ifndef __LIBC12_SOURCE__ 151 int clock_getres(clockid_t, struct timespec *) 152 __RENAME(__clock_getres50); 153 int clock_gettime(clockid_t, struct timespec *) 154 __RENAME(__clock_gettime50); 155 int clock_settime(clockid_t, const struct timespec *) 156 __RENAME(__clock_settime50); 157 int nanosleep(const struct timespec *, struct timespec *) 158 __RENAME(__nanosleep50); 159 int timer_gettime(timer_t, struct itimerspec *) __RENAME(__timer_gettime50); 160 int timer_settime(timer_t, int, const struct itimerspec * __restrict, 161 struct itimerspec * __restrict) __RENAME(__timer_settime50); 162 #endif 163 int timer_create(clockid_t, struct sigevent * __restrict, 164 timer_t * __restrict); 165 int timer_delete(timer_t); 166 int timer_getoverrun(timer_t); 167 #endif /* _POSIX_C_SOURCE >= 199309 || _XOPEN_SOURCE >= 500 || ... */ 168 169 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 170 defined(_REENTRANT) || defined(_NETBSD_SOURCE) 171 char *asctime_r(const struct tm * __restrict, char * __restrict); 172 #ifndef __LIBC12_SOURCE__ 173 char *ctime_r(const time_t *, char *) __RENAME(__ctime_r50); 174 struct tm *gmtime_r(const time_t * __restrict, struct tm * __restrict) 175 __RENAME(__gmtime_r50); 176 struct tm *localtime_r(const time_t * __restrict, struct tm * __restrict) 177 __RENAME(__localtime_r50); 178 #endif 179 #endif 180 181 #if defined(_NETBSD_SOURCE) 182 183 typedef struct __state *timezone_t; 184 185 #ifndef __LIBC12_SOURCE__ 186 time_t time2posix(time_t) __RENAME(__time2posix50); 187 time_t posix2time(time_t) __RENAME(__posix2time50); 188 time_t timegm(struct tm *) __RENAME(__timegm50); 189 time_t timeoff(struct tm *, long) __RENAME(__timeoff50); 190 time_t timelocal(struct tm *) __RENAME(__timelocal50); 191 struct tm *offtime(const time_t *, long) __RENAME(__offtime50); 192 void tzsetwall(void) __RENAME(__tzsetwall50); 193 194 struct tm *offtime_r(const time_t *, long, struct tm *) __RENAME(__offtime_r50); 195 struct tm *localtime_rz(const timezone_t, const time_t * __restrict, 196 struct tm * __restrict) __RENAME(__localtime_rz50); 197 char *ctime_rz(const timezone_t, const time_t *, char *) __RENAME(__ctime_rz50); 198 time_t mktime_z(const timezone_t, struct tm *) __RENAME(__mktime_z50); 199 time_t timelocal_z(const timezone_t, struct tm *) __RENAME(__timelocal_z50); 200 time_t time2posix_z(const timezone_t, time_t) __RENAME(__time2posix_z50); 201 time_t posix2time_z(const timezone_t, time_t) __RENAME(__posix2time_z50); 202 timezone_t tzalloc(const char *) __RENAME(__tzalloc50); 203 void tzfree(const timezone_t) __RENAME(__tzfree50); 204 const char *tzgetname(const timezone_t, int) __RENAME(__tzgetname50); 205 #endif 206 207 size_t strftime_z(const timezone_t, char * __restrict, size_t, 208 const char * __restrict, const struct tm * __restrict) 209 __attribute__((__format__(__strftime__, 4, 0))); 210 211 #endif /* _NETBSD_SOURCE */ 212 213 #ifdef __minix 214 int stime(time_t *_top); 215 #endif /* __minix */ 216 217 __END_DECLS 218 219 #endif /* !_TIME_H_ */ 220