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b688fc87 WJ |
1 | /* |
2 | * Copyright (c) 1982, 1986 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
33 | * @(#)time.h 7.6 (Berkeley) 2/22/91 | |
34 | */ | |
35 | ||
36 | #ifndef _SYS_TIME_H_ | |
37 | #define _SYS_TIME_H_ | |
38 | ||
39 | /* | |
40 | * Structure returned by gettimeofday(2) system call, | |
41 | * and used in other calls. | |
42 | */ | |
43 | struct timeval { | |
44 | long tv_sec; /* seconds */ | |
45 | long tv_usec; /* and microseconds */ | |
46 | }; | |
47 | ||
48 | struct timezone { | |
49 | int tz_minuteswest; /* minutes west of Greenwich */ | |
50 | int tz_dsttime; /* type of dst correction */ | |
51 | }; | |
52 | #define DST_NONE 0 /* not on dst */ | |
53 | #define DST_USA 1 /* USA style dst */ | |
54 | #define DST_AUST 2 /* Australian style dst */ | |
55 | #define DST_WET 3 /* Western European dst */ | |
56 | #define DST_MET 4 /* Middle European dst */ | |
57 | #define DST_EET 5 /* Eastern European dst */ | |
58 | #define DST_CAN 6 /* Canada */ | |
59 | ||
60 | /* | |
61 | * Operations on timevals. | |
62 | * | |
63 | * NB: timercmp does not work for >= or <=. | |
64 | */ | |
65 | #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) | |
66 | #define timercmp(tvp, uvp, cmp) \ | |
67 | ((tvp)->tv_sec cmp (uvp)->tv_sec || \ | |
68 | (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec) | |
69 | #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 | |
70 | ||
71 | /* | |
72 | * Names of the interval timers, and structure | |
73 | * defining a timer setting. | |
74 | */ | |
75 | #define ITIMER_REAL 0 | |
76 | #define ITIMER_VIRTUAL 1 | |
77 | #define ITIMER_PROF 2 | |
78 | ||
79 | struct itimerval { | |
80 | struct timeval it_interval; /* timer interval */ | |
81 | struct timeval it_value; /* current value */ | |
82 | }; | |
83 | ||
84 | #ifndef KERNEL | |
85 | #include <time.h> | |
86 | ||
87 | #ifndef _POSIX_SOURCE | |
88 | #include <sys/cdefs.h> | |
89 | ||
90 | __BEGIN_DECLS | |
91 | int adjtime __P((const struct timeval *, struct timeval *)); | |
92 | int getitimer __P((int, struct itimerval *)); | |
93 | int gettimeofday __P((struct timeval *, struct timezone *)); | |
94 | int setitimer __P((int, const struct itimerval *, struct itimerval *)); | |
95 | int settimeofday __P((const struct timeval *, const struct timezone *)); | |
96 | int utimes __P((const char *, const struct timeval *)); | |
97 | __END_DECLS | |
98 | #endif /* !POSIX */ | |
99 | ||
100 | #endif /* !KERNEL */ | |
101 | ||
102 | #endif /* !_SYS_TIME_H_ */ |