2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _OPENSOLARIS_SYS_TIME_H_
30 #define _OPENSOLARIS_SYS_TIME_H_
32 #include_next <sys/time.h>
36 #define MICROSEC 1000000
37 #define NANOSEC 1000000000
38 #define TIME_MAX LLONG_MAX
40 #define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC))
41 #define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC))
43 typedef longlong_t hrtime_t;
45 #if defined(__i386__) || defined(__powerpc__)
46 #define TIMESPEC_OVERFLOW(ts) \
47 ((ts)->tv_sec < INT32_MIN || (ts)->tv_sec > INT32_MAX)
49 #define TIMESPEC_OVERFLOW(ts) \
50 ((ts)->tv_sec < INT64_MIN || (ts)->tv_sec > INT64_MAX)
53 #define SEC_TO_TICK(sec) ((sec) * hz)
54 #define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
57 static __inline hrtime_t
64 nsec = (hrtime_t)ts.tv_sec * NANOSEC + ts.tv_nsec;
68 #define gethrestime_sec() (time_second)
69 #define gethrestime(ts) getnanotime(ts)
70 #define gethrtime_waitfree() gethrtime()
72 extern int nsec_per_tick; /* nanoseconds per clock tick */
74 static __inline int64_t
78 return (gethrtime() / nsec_per_tick);
81 static __inline clock_t
85 return (ddi_get_lbolt64());
90 static __inline hrtime_t gethrtime(void) {
92 clock_gettime(CLOCK_UPTIME,&ts);
93 return (((u_int64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec);
98 #endif /* !_OPENSOLARIS_SYS_TIME_H_ */