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 <sys/types.h>
33 #include_next <sys/time.h>
37 #define MICROSEC 1000000
38 #define NANOSEC 1000000000
39 #define TIME_MAX LLONG_MAX
41 #define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC))
42 #define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC))
44 #define USEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MICROSEC))
45 #define NSEC2USEC(n) ((n) / (NANOSEC / MICROSEC))
47 #define NSEC2SEC(n) ((n) / (NANOSEC / SEC))
48 #define SEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / SEC))
50 typedef longlong_t hrtime_t;
52 #if defined(__i386__) || defined(__powerpc__)
53 #define TIMESPEC_OVERFLOW(ts) \
54 ((ts)->tv_sec < INT32_MIN || (ts)->tv_sec > INT32_MAX)
56 #define TIMESPEC_OVERFLOW(ts) \
57 ((ts)->tv_sec < INT64_MIN || (ts)->tv_sec > INT64_MAX)
60 #define SEC_TO_TICK(sec) ((sec) * hz)
61 #define NSEC_TO_TICK(nsec) ((nsec) / (NANOSEC / hz))
64 static __inline hrtime_t
71 nsec = (hrtime_t)ts.tv_sec * NANOSEC + ts.tv_nsec;
75 #define gethrestime_sec() (time_second)
76 #define gethrestime(ts) getnanotime(ts)
77 #define gethrtime_waitfree() gethrtime()
79 extern int nsec_per_tick; /* nanoseconds per clock tick */
81 #define ddi_get_lbolt64() \
82 (int64_t)(((getsbinuptime() >> 16) * hz) >> 16)
83 #define ddi_get_lbolt() (clock_t)ddi_get_lbolt64()
87 static __inline hrtime_t gethrtime(void) {
89 clock_gettime(CLOCK_UPTIME,&ts);
90 return (((u_int64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec);
95 #endif /* !_OPENSOLARIS_SYS_TIME_H_ */