| /* $OpenBSD: time.h,v 1.11 2000/10/10 13:36:48 itojun Exp $ */ |
| /* $NetBSD: time.h,v 1.18 1996/04/23 10:29:33 mycroft Exp $ */ |
| |
| /* |
| * Copyright (c) 1982, 1986, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)time.h 8.2 (Berkeley) 7/10/94 |
| */ |
| |
| #ifndef _SYS_TIME_H_ |
| #define _SYS_TIME_H_ |
| |
| #ifndef STARBOARD |
| #include <sys/types.h> |
| #endif |
| |
| /* |
| * Structure returned by gettimeofday(2) system call, |
| * and used in other calls. |
| */ |
| struct timeval { |
| long tv_sec; /* seconds */ |
| long tv_usec; /* and microseconds */ |
| }; |
| |
| /* |
| * Structure defined by POSIX.1b to be like a timeval. |
| */ |
| struct timespec { |
| time_t tv_sec; /* seconds */ |
| long tv_nsec; /* and nanoseconds */ |
| }; |
| |
| #define TIMEVAL_TO_TIMESPEC(tv, ts) { \ |
| (ts)->tv_sec = (tv)->tv_sec; \ |
| (ts)->tv_nsec = (tv)->tv_usec * 1000; \ |
| } |
| #define TIMESPEC_TO_TIMEVAL(tv, ts) { \ |
| (tv)->tv_sec = (ts)->tv_sec; \ |
| (tv)->tv_usec = (ts)->tv_nsec / 1000; \ |
| } |
| |
| struct timezone { |
| int tz_minuteswest; /* minutes west of Greenwich */ |
| int tz_dsttime; /* type of dst correction */ |
| }; |
| #define DST_NONE 0 /* not on dst */ |
| #define DST_USA 1 /* USA style dst */ |
| #define DST_AUST 2 /* Australian style dst */ |
| #define DST_WET 3 /* Western European dst */ |
| #define DST_MET 4 /* Middle European dst */ |
| #define DST_EET 5 /* Eastern European dst */ |
| #define DST_CAN 6 /* Canada */ |
| |
| /* Operations on timevals. */ |
| #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 |
| #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) |
| #define timercmp(tvp, uvp, cmp) \ |
| (((tvp)->tv_sec == (uvp)->tv_sec) ? \ |
| ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ |
| ((tvp)->tv_sec cmp (uvp)->tv_sec)) |
| #define timeradd(tvp, uvp, vvp) \ |
| do { \ |
| (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ |
| (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ |
| if ((vvp)->tv_usec >= 1000000) { \ |
| (vvp)->tv_sec++; \ |
| (vvp)->tv_usec -= 1000000; \ |
| } \ |
| } while (0) |
| #define timersub(tvp, uvp, vvp) \ |
| do { \ |
| (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ |
| (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ |
| if ((vvp)->tv_usec < 0) { \ |
| (vvp)->tv_sec--; \ |
| (vvp)->tv_usec += 1000000; \ |
| } \ |
| } while (0) |
| |
| /* Operations on timespecs. */ |
| #define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0 |
| #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec) |
| #define timespeccmp(tsp, usp, cmp) \ |
| (((tsp)->tv_sec == (usp)->tv_sec) ? \ |
| ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ |
| ((tsp)->tv_sec cmp (usp)->tv_sec)) |
| #define timespecadd(tsp, usp, vsp) \ |
| do { \ |
| (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ |
| (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ |
| if ((vsp)->tv_nsec >= 1000000000L) { \ |
| (vsp)->tv_sec++; \ |
| (vsp)->tv_nsec -= 1000000000L; \ |
| } \ |
| } while (0) |
| #define timespecsub(tsp, usp, vsp) \ |
| do { \ |
| (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ |
| (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ |
| if ((vsp)->tv_nsec < 0) { \ |
| (vsp)->tv_sec--; \ |
| (vsp)->tv_nsec += 1000000000L; \ |
| } \ |
| } while (0) |
| |
| /* |
| * Names of the interval timers, and structure |
| * defining a timer setting. |
| */ |
| #define ITIMER_REAL 0 |
| #define ITIMER_VIRTUAL 1 |
| #define ITIMER_PROF 2 |
| |
| struct itimerval { |
| struct timeval it_interval; /* timer interval */ |
| struct timeval it_value; /* current value */ |
| }; |
| |
| /* |
| * Getkerninfo clock information structure |
| */ |
| struct clockinfo { |
| int hz; /* clock frequency */ |
| int tick; /* micro-seconds per hz tick */ |
| int tickadj; /* clock skew rate for adjtime() */ |
| int stathz; /* statistics clock frequency */ |
| int profhz; /* profiling clock frequency */ |
| }; |
| |
| #define CLOCK_REALTIME 0 |
| #define CLOCK_VIRTUAL 1 |
| #define CLOCK_PROF 2 |
| |
| #define TIMER_RELTIME 0x0 /* relative timer */ |
| #define TIMER_ABSTIME 0x1 /* absolute timer */ |
| |
| /* --- stuff got cut here - niels --- */ |
| |
| #endif /* !_SYS_TIME_H_ */ |