1 /* $NetBSD: time.h,v 1.7 2016/04/28 11:45:02 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/compat/opensolaris/sys/time.h,v 1.2 2007/11/28 21:44:17 jb Exp $
29 */
30
31 #ifndef _OPENSOLARIS_SYS_TIME_H_
32 #define _OPENSOLARIS_SYS_TIME_H_
33
34 #include_next <sys/time.h>
35
36 #define SEC 1
37 #define MILLISEC 1000
38 #define MICROSEC 1000000
39 #define NANOSEC 1000000000
40
41 #define LBOLT ((gethrtime() * hz) / NANOSEC)
42
43 #define TIMESPEC_OVERFLOW(ts) \
44 ((ts)->tv_sec < INT32_MIN || (ts)->tv_sec > INT32_MAX)
45
46 #ifdef _KERNEL
47 #include <sys/systm.h>
48
49 static __inline hrtime_t
gethrtime(void)50 gethrtime(void) {
51
52 struct timespec ts;
53 hrtime_t nsec;
54
55 #if 1
56 getnanouptime(&ts);
57 #else
58 nanouptime(&ts);
59 #endif
60 nsec = (hrtime_t)ts.tv_sec * NANOSEC + ts.tv_nsec;
61 return (nsec);
62 }
63
64 #define gethrestime_sec() (time_second)
65 #define gethrestime(ts) getnanotime(ts)
66
67 #else
68
69 #ifdef CLOCK_REALTIME
70 int clock_gettime(clockid_t, struct timespec *)
71 #ifdef __RENAME
72 __RENAME(__clock_gettime50)
73 #endif
74 ;
75 #else
76 #include <stdio.h> /* For NULL */
77 #endif
78
gethrtime(void)79 static __inline hrtime_t gethrtime(void) {
80 #ifdef CLOCK_REALTIME
81 struct timespec ts;
82 clock_gettime(CLOCK_REALTIME,&ts);
83 return (((u_int64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec);
84 #else
85 struct timeval tv;
86 gettimeofday(&tv, NULL);
87 return (((u_int64_t) tv.tv_sec) * MICROSEC + tv.tv_usec) * 1000;
88 #endif
89 }
90
91 #endif /* _KERNEL */
92
93 #endif /* !_OPENSOLARIS_SYS_TIME_H_ */
94