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Side by Side Diff: third_party/libevent/compat/sys/_libevent_time.h

Issue 412006: posix: upgrade libevent from 1.4.7 to 1.4.13 (Closed)
Patch Set: better readme Created 11 years, 1 month ago
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1 /* $OpenBSD: time.h,v 1.11 2000/10/10 13:36:48 itojun Exp $ */
2 /* $NetBSD: time.h,v 1.18 1996/04/23 10:29:33 mycroft Exp $ */
3
4 /*
5 * Copyright (c) 1982, 1986, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)time.h 8.2 (Berkeley) 7/10/94
33 */
34
35 #ifndef _SYS_TIME_H_
36 #define _SYS_TIME_H_
37
38 #include <sys/types.h>
39
40 /*
41 * Structure returned by gettimeofday(2) system call,
42 * and used in other calls.
43 */
44 struct timeval {
45 long tv_sec; /* seconds */
46 long tv_usec; /* and microseconds */
47 };
48
49 /*
50 * Structure defined by POSIX.1b to be like a timeval.
51 */
52 struct timespec {
53 time_t tv_sec; /* seconds */
54 long tv_nsec; /* and nanoseconds */
55 };
56
57 #define TIMEVAL_TO_TIMESPEC(tv, ts) { \
58 (ts)->tv_sec = (tv)->tv_sec; \
59 (ts)->tv_nsec = (tv)->tv_usec * 1000; \
60 }
61 #define TIMESPEC_TO_TIMEVAL(tv, ts) { \
62 (tv)->tv_sec = (ts)->tv_sec; \
63 (tv)->tv_usec = (ts)->tv_nsec / 1000; \
64 }
65
66 struct timezone {
67 int tz_minuteswest; /* minutes west of Greenwich */
68 int tz_dsttime; /* type of dst correction */
69 };
70 #define DST_NONE 0 /* not on dst */
71 #define DST_USA 1 /* USA style dst */
72 #define DST_AUST 2 /* Australian style dst */
73 #define DST_WET 3 /* Western European dst */
74 #define DST_MET 4 /* Middle European dst */
75 #define DST_EET 5 /* Eastern European dst */
76 #define DST_CAN 6 /* Canada */
77
78 /* Operations on timevals. */
79 #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
80 #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
81 #define timercmp(tvp, uvp, cmp) \
82 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
83 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
84 ((tvp)->tv_sec cmp (uvp)->tv_sec))
85 #define timeradd(tvp, uvp, vvp) \
86 do { \
87 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
88 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
89 if ((vvp)->tv_usec >= 1000000) { \
90 (vvp)->tv_sec++; \
91 (vvp)->tv_usec -= 1000000; \
92 } \
93 } while (0)
94 #define timersub(tvp, uvp, vvp) \
95 do { \
96 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
97 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
98 if ((vvp)->tv_usec < 0) { \
99 (vvp)->tv_sec--; \
100 (vvp)->tv_usec += 1000000; \
101 } \
102 } while (0)
103
104 /* Operations on timespecs. */
105 #define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0
106 #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec)
107 #define timespeccmp(tsp, usp, cmp) \
108 (((tsp)->tv_sec == (usp)->tv_sec) ? \
109 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
110 ((tsp)->tv_sec cmp (usp)->tv_sec))
111 #define timespecadd(tsp, usp, vsp) \
112 do { \
113 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
114 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
115 if ((vsp)->tv_nsec >= 1000000000L) { \
116 (vsp)->tv_sec++; \
117 (vsp)->tv_nsec -= 1000000000L; \
118 } \
119 } while (0)
120 #define timespecsub(tsp, usp, vsp) \
121 do { \
122 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
123 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
124 if ((vsp)->tv_nsec < 0) { \
125 (vsp)->tv_sec--; \
126 (vsp)->tv_nsec += 1000000000L; \
127 } \
128 } while (0)
129
130 /*
131 * Names of the interval timers, and structure
132 * defining a timer setting.
133 */
134 #define ITIMER_REAL 0
135 #define ITIMER_VIRTUAL 1
136 #define ITIMER_PROF 2
137
138 struct itimerval {
139 struct timeval it_interval; /* timer interval */
140 struct timeval it_value; /* current value */
141 };
142
143 /*
144 * Getkerninfo clock information structure
145 */
146 struct clockinfo {
147 int hz; /* clock frequency */
148 int tick; /* micro-seconds per hz tick */
149 int tickadj; /* clock skew rate for adjtime() */
150 int stathz; /* statistics clock frequency */
151 int profhz; /* profiling clock frequency */
152 };
153
154 #define CLOCK_REALTIME 0
155 #define CLOCK_VIRTUAL 1
156 #define CLOCK_PROF 2
157
158 #define TIMER_RELTIME 0x0 /* relative timer */
159 #define TIMER_ABSTIME 0x1 /* absolute timer */
160
161 /* --- stuff got cut here - niels --- */
162
163 #endif /* !_SYS_TIME_H_ */
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