time.h revision 1.18 1 /* $NetBSD: time.h,v 1.18 1998/07/27 09:09:27 mycroft 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 <machine/ansi.h>
47
48 #ifndef NULL
49 #define NULL 0
50 #endif
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 CUT in seconds */
90 __aconst char *tm_zone; /* timezone abbreviation */
91 };
92
93 #include <machine/limits.h> /* Include file containing CLK_TCK. */
94
95 #include <sys/cdefs.h>
96
97 __BEGIN_DECLS
98 char *asctime __P((const struct tm *));
99 clock_t clock __P((void));
100 char *ctime __P((const time_t *));
101 double difftime __P((time_t, time_t));
102 struct tm *gmtime __P((const time_t *));
103 struct tm *localtime __P((const time_t *));
104 time_t mktime __P((struct tm *));
105 size_t strftime __P((char *, size_t, const char *, const struct tm *));
106 time_t time __P((time_t *));
107
108 #if !defined(_ANSI_SOURCE)
109 #define CLK_TCK 100
110 extern __aconst char *tzname[2];
111 void tzset __P((void));
112 #endif /* not ANSI */
113
114 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
115 char *strptime __P((const char *, const char *, struct tm *));
116 char *timezone __P((int, int));
117 void tzsetwall __P((void));
118 struct tm *offtime __P((const time_t *const, const long));
119 time_t timelocal __P((struct tm *const));
120 time_t timegm __P((struct tm *const));
121 time_t timeoff __P((struct tm *const, const long));
122 long gtime __P((struct tm *const));
123 time_t time2posix __P((time_t));
124 time_t posix2time __P((time_t));
125 #endif /* neither ANSI nor POSIX */
126
127 #if (!defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) && \
128 !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
129 ((_POSIX_C_SOURCE - 0) >= 199309L)
130 #include <sys/time.h> /* for struct timespec */
131 struct sigevent;
132 struct itimerspec;
133 int clock_getres __P((clockid_t, struct timespec *));
134 int clock_gettime __P((clockid_t, struct timespec *));
135 int clock_settime __P((clockid_t, const struct timespec *));
136 int nanosleep __P((const struct timespec *, struct timespec *));
137 int timer_create __P((clockid_t, struct sigevent *, timer_t *));
138 int timer_delete __P((timer_t));
139 int timer_getoverrun __P((timer_t));
140 int timer_gettime __P((timer_t, struct itimerspec *));
141 int timer_settime __P((timer_t, int, const struct itimerspec *,
142 struct itimerspec *));
143 #endif
144 __END_DECLS
145
146 #endif /* !_TIME_H_ */
147