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.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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38 * @(#)time.h 8.3 (Berkeley) 1/21/94
48 #include <sys/cdefs.h>
49 #include <sys/_null.h>
50 #include <sys/_types.h>
52 #if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE
54 * Frequency of the clock ticks reported by times(). Deprecated - use
55 * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.)
60 /* Frequency of the clock ticks reported by clock(). */
61 #define CLOCKS_PER_SEC 128
63 #ifndef _CLOCK_T_DECLARED
64 typedef __clock_t clock_t;
65 #define _CLOCK_T_DECLARED
68 #ifndef _TIME_T_DECLARED
69 typedef __time_t time_t;
70 #define _TIME_T_DECLARED
73 #ifndef _SIZE_T_DECLARED
74 typedef __size_t size_t;
75 #define _SIZE_T_DECLARED
78 #if __POSIX_VISIBLE >= 199309
80 * New in POSIX 1003.1b-1993.
82 #ifndef _CLOCKID_T_DECLARED
83 typedef __clockid_t clockid_t;
84 #define _CLOCKID_T_DECLARED
87 #ifndef _TIMER_T_DECLARED
88 typedef __timer_t timer_t;
89 #define _TIMER_T_DECLARED
92 #include <sys/timespec.h>
93 #endif /* __POSIX_VISIBLE >= 199309 */
95 /* These macros are also in sys/time.h. */
96 #if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112
97 #define CLOCK_REALTIME 0
99 #define CLOCK_VIRTUAL 1
102 #define CLOCK_MONOTONIC 4
103 #define CLOCK_UPTIME 5 /* FreeBSD-specific. */
104 #define CLOCK_UPTIME_PRECISE 7 /* FreeBSD-specific. */
105 #define CLOCK_UPTIME_FAST 8 /* FreeBSD-specific. */
106 #define CLOCK_REALTIME_PRECISE 9 /* FreeBSD-specific. */
107 #define CLOCK_REALTIME_FAST 10 /* FreeBSD-specific. */
108 #define CLOCK_MONOTONIC_PRECISE 11 /* FreeBSD-specific. */
109 #define CLOCK_MONOTONIC_FAST 12 /* FreeBSD-specific. */
110 #define CLOCK_SECOND 13 /* FreeBSD-specific. */
111 #define CLOCK_THREAD_CPUTIME_ID 14
112 #endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 */
114 #if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112
116 #define TIMER_RELTIME 0x0 /* relative timer */
118 #define TIMER_ABSTIME 0x1 /* absolute timer */
119 #endif /* !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112 */
122 int tm_sec; /* seconds after the minute [0-60] */
123 int tm_min; /* minutes after the hour [0-59] */
124 int tm_hour; /* hours since midnight [0-23] */
125 int tm_mday; /* day of the month [1-31] */
126 int tm_mon; /* months since January [0-11] */
127 int tm_year; /* years since 1900 */
128 int tm_wday; /* days since Sunday [0-6] */
129 int tm_yday; /* days since January 1 [0-365] */
130 int tm_isdst; /* Daylight Savings Time flag */
131 long tm_gmtoff; /* offset from UTC in seconds */
132 char *tm_zone; /* timezone abbreviation */
136 extern char *tzname[];
140 char *asctime(const struct tm *);
142 char *ctime(const time_t *);
143 double difftime(time_t, time_t);
144 /* XXX missing: getdate() */
145 struct tm *gmtime(const time_t *);
146 struct tm *localtime(const time_t *);
147 time_t mktime(struct tm *);
148 size_t strftime(char * __restrict, size_t, const char * __restrict,
149 const struct tm * __restrict);
150 time_t time(time_t *);
151 #if __POSIX_VISIBLE >= 200112
153 int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict);
154 int timer_delete(timer_t);
155 int timer_gettime(timer_t, struct itimerspec *);
156 int timer_getoverrun(timer_t);
157 int timer_settime(timer_t, int, const struct itimerspec *__restrict,
158 struct itimerspec *__restrict);
164 #if __POSIX_VISIBLE >= 199309
165 int clock_getres(clockid_t, struct timespec *);
166 int clock_gettime(clockid_t, struct timespec *);
167 int clock_settime(clockid_t, const struct timespec *);
168 /* XXX missing: clock_nanosleep() */
169 int nanosleep(const struct timespec *, struct timespec *);
170 #endif /* __POSIX_VISIBLE >= 199309 */
172 #if __POSIX_VISIBLE >= 199506
173 char *asctime_r(const struct tm *, char *);
174 char *ctime_r(const time_t *, char *);
175 struct tm *gmtime_r(const time_t *, struct tm *);
176 struct tm *localtime_r(const time_t *, struct tm *);
180 char *strptime(const char * __restrict, const char * __restrict,
181 struct tm * __restrict);
185 char *timezone(int, int); /* XXX XSI conflict */
186 void tzsetwall(void);
187 time_t timelocal(struct tm * const);
188 time_t timegm(struct tm * const);
189 #endif /* __BSD_VISIBLE */
192 #endif /* !_TIME_H_ */