time.h revision 265679
1/*- 2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * 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 * 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 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/10/sys/cddl/compat/opensolaris/sys/time.h 265679 2014-05-08 13:31:01Z mav $ 27 */ 28 29#ifndef _OPENSOLARIS_SYS_TIME_H_ 30#define _OPENSOLARIS_SYS_TIME_H_ 31 32#include_next <sys/time.h> 33 34#define SEC 1 35#define MILLISEC 1000 36#define MICROSEC 1000000 37#define NANOSEC 1000000000 38#define TIME_MAX LLONG_MAX 39 40#define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC)) 41#define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC)) 42 43typedef longlong_t hrtime_t; 44 45#if defined(__i386__) || defined(__powerpc__) 46#define TIMESPEC_OVERFLOW(ts) \ 47 ((ts)->tv_sec < INT32_MIN || (ts)->tv_sec > INT32_MAX) 48#else 49#define TIMESPEC_OVERFLOW(ts) \ 50 ((ts)->tv_sec < INT64_MIN || (ts)->tv_sec > INT64_MAX) 51#endif 52 53#define SEC_TO_TICK(sec) ((sec) * hz) 54#define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz)) 55 56#ifdef _KERNEL 57static __inline hrtime_t 58gethrtime(void) { 59 60 struct timespec ts; 61 hrtime_t nsec; 62 63 getnanouptime(&ts); 64 nsec = (hrtime_t)ts.tv_sec * NANOSEC + ts.tv_nsec; 65 return (nsec); 66} 67 68#define gethrestime_sec() (time_second) 69#define gethrestime(ts) getnanotime(ts) 70#define gethrtime_waitfree() gethrtime() 71 72extern int nsec_per_tick; /* nanoseconds per clock tick */ 73 74#define ddi_get_lbolt64() \ 75 (int64_t)(((getsbinuptime() >> 16) * hz) >> 16) 76#define ddi_get_lbolt() (clock_t)ddi_get_lbolt64() 77 78#else 79 80static __inline hrtime_t gethrtime(void) { 81 struct timespec ts; 82 clock_gettime(CLOCK_UPTIME,&ts); 83 return (((u_int64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec); 84} 85 86#endif /* _KERNEL */ 87 88#endif /* !_OPENSOLARIS_SYS_TIME_H_ */ 89