FreeBSD/Linux Kernel Cross Reference
sys/sys/timespec.h
1 /*
2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. 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 8.5 (Berkeley) 5/4/95
34 * from: FreeBSD: src/sys/sys/time.h,v 1.43 2000/03/20 14:09:05 phk Exp
35 * $FreeBSD: releng/5.1/sys/sys/timespec.h 102227 2002-08-21 16:20:02Z mike $
36 */
37
38 /*
39 * Prerequisites: <sys/cdefs.h>, <sys/_types.h>
40 */
41
42 #ifndef _SYS_TIMESPEC_H_
43 #define _SYS_TIMESPEC_H_
44
45 #ifndef _TIME_T_DECLARED
46 typedef __time_t time_t;
47 #define _TIME_T_DECLARED
48 #endif
49
50 struct timespec {
51 time_t tv_sec; /* seconds */
52 long tv_nsec; /* and nanoseconds */
53 };
54
55 #if __BSD_VISIBLE
56 #define TIMEVAL_TO_TIMESPEC(tv, ts) \
57 do { \
58 (ts)->tv_sec = (tv)->tv_sec; \
59 (ts)->tv_nsec = (tv)->tv_usec * 1000; \
60 } while (0)
61 #define TIMESPEC_TO_TIMEVAL(tv, ts) \
62 do { \
63 (tv)->tv_sec = (ts)->tv_sec; \
64 (tv)->tv_usec = (ts)->tv_nsec / 1000; \
65 } while (0)
66
67 #endif /* __BSD_VISIBLE */
68
69 #endif /* _SYS_TIMESPEC_H_ */
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