Annotation of src/include/time.h, Revision 1.29
1.29 ! bjh21 1: /* $NetBSD: time.h,v 1.28 2002/06/23 19:41:04 perry Exp $ */
1.9 cgd 2:
1.7 cgd 3: /*
1.15 perry 4: * Copyright (c) 1989, 1993
5: * The Regents of the University of California. All rights reserved.
1.7 cgd 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: *
1.15 perry 40: * @(#)time.h 8.3 (Berkeley) 1/21/94
1.7 cgd 41: */
42:
43: #ifndef _TIME_H_
44: #define _TIME_H_
45:
1.19 mycroft 46: #include <sys/cdefs.h>
1.21 kleink 47: #include <sys/featuretest.h>
1.7 cgd 48: #include <machine/ansi.h>
49:
1.24 kleink 50: #include <sys/null.h>
1.7 cgd 51:
1.8 cgd 52: #ifdef _BSD_CLOCK_T_
53: typedef _BSD_CLOCK_T_ clock_t;
54: #undef _BSD_CLOCK_T_
1.7 cgd 55: #endif
56:
1.8 cgd 57: #ifdef _BSD_TIME_T_
58: typedef _BSD_TIME_T_ time_t;
59: #undef _BSD_TIME_T_
1.7 cgd 60: #endif
61:
1.8 cgd 62: #ifdef _BSD_SIZE_T_
63: typedef _BSD_SIZE_T_ size_t;
64: #undef _BSD_SIZE_T_
1.12 christos 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_
1.7 cgd 75: #endif
76:
77: #define CLOCKS_PER_SEC 100
78:
79: struct tm {
1.14 kleink 80: int tm_sec; /* seconds after the minute [0-61] */
1.7 cgd 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 */
1.25 hubertf 89: long tm_gmtoff; /* offset from UTC in seconds */
1.18 mycroft 90: __aconst char *tm_zone; /* timezone abbreviation */
1.7 cgd 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 *));
1.26 kleink 101: size_t strftime __P((char * __restrict, size_t, const char * __restrict,
102: const struct tm * __restrict));
1.7 cgd 103: time_t time __P((time_t *));
104:
105: #if !defined(_ANSI_SOURCE)
1.28 perry 106:
1.29 ! bjh21 107: #ifdef __LIBC12_SOURCE__
! 108: #define CLK_TCK 100
! 109: #else
! 110:
1.28 perry 111: /*
112: * CLK_TCK uses libc's internal __sysconf() to retrieve the machine's
1.29 ! bjh21 113: * HZ. The value of _SC_CLK_TCK is 39 -- we hard code it so we do not
1.28 perry 114: * need to include unistd.h
115: */
116: long __sysconf __P((int));
1.29 ! bjh21 117: #define CLK_TCK (__sysconf(39))
! 118:
! 119: #endif
1.28 perry 120:
1.18 mycroft 121: extern __aconst char *tzname[2];
1.7 cgd 122: void tzset __P((void));
123:
1.21 kleink 124: /*
125: * X/Open Portability Guide >= Issue 4
126: */
127: #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
128: (_XOPEN_SOURCE - 0) >= 4
1.27 kleink 129: extern int daylight;
130: #ifndef __LIBC12_SOURCE__
131: extern long int timezone __RENAME(__timezone13);
132: #endif
1.26 kleink 133: char *strptime __P((const char * __restrict, const char * __restrict,
134: struct tm * __restrict));
1.21 kleink 135: #endif
1.11 christos 136:
1.21 kleink 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 */
1.11 christos 140: struct sigevent;
141: struct itimerspec;
1.14 kleink 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 *));
1.13 kleink 145: int nanosleep __P((const struct timespec *, struct timespec *));
1.11 christos 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 *));
1.21 kleink 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)
1.26 kleink 157: char *asctime_r __P((const struct tm * __restrict, char * __restrict));
1.21 kleink 158: char *ctime_r __P((const time_t *, char *));
1.26 kleink 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));
1.13 kleink 161: #endif
1.21 kleink 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));
1.27 kleink 169: #ifdef __LIBC12_SOURCE__
1.21 kleink 170: char *timezone __P((int, int));
1.27 kleink 171: #endif
1.21 kleink 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 */
1.7 cgd 177: __END_DECLS
178:
179: #endif /* !_TIME_H_ */
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