FreeBSD/Linux Kernel Cross Reference
sys/sys/timespec.h
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1986, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)time.h 8.5 (Berkeley) 5/4/95
32 * from: FreeBSD: src/sys/sys/time.h,v 1.43 2000/03/20 14:09:05 phk Exp
33 * $FreeBSD$
34 */
35
36 #ifndef _SYS_TIMESPEC_H_
37 #define _SYS_TIMESPEC_H_
38
39 #include <sys/cdefs.h>
40 #include <sys/_timespec.h>
41
42 #if __BSD_VISIBLE
43 #define TIMEVAL_TO_TIMESPEC(tv, ts) \
44 do { \
45 (ts)->tv_sec = (tv)->tv_sec; \
46 (ts)->tv_nsec = (tv)->tv_usec * 1000; \
47 } while (0)
48 #define TIMESPEC_TO_TIMEVAL(tv, ts) \
49 do { \
50 (tv)->tv_sec = (ts)->tv_sec; \
51 (tv)->tv_usec = (ts)->tv_nsec / 1000; \
52 } while (0)
53
54 #endif /* __BSD_VISIBLE */
55
56 /*
57 * Structure defined by POSIX.1b to be like a itimerval, but with
58 * timespecs. Used in the timer_*() system calls.
59 */
60 struct itimerspec {
61 struct timespec it_interval;
62 struct timespec it_value;
63 };
64
65 #endif /* _SYS_TIMESPEC_H_ */
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