/* * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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 8.5 (Berkeley) 5/4/95 * $FreeBSD: src/sys/sys/time.h,v 1.42 1999/12/29 04:24:48 peter Exp $ * $DragonFly: src/sys/sys/time.h,v 1.8 2004/01/30 05:42:18 dillon Exp $ */ #ifndef _SYS_TIME_H_ #define _SYS_TIME_H_ #ifndef _SYS_TYPES_H_ #include #endif /* * Structure returned by gettimeofday(2) system call, * and used in other calls. */ struct timeval { long tv_sec; /* seconds */ long tv_usec; /* and microseconds */ }; #ifndef _TIMESPEC_DECLARED #define _TIMESPEC_DECLARED struct timespec { time_t tv_sec; /* seconds */ long tv_nsec; /* and nanoseconds */ }; #endif #define TIMEVAL_TO_TIMESPEC(tv, ts) \ do { \ (ts)->tv_sec = (tv)->tv_sec; \ (ts)->tv_nsec = (tv)->tv_usec * 1000; \ } while (0) #define TIMESPEC_TO_TIMEVAL(tv, ts) \ do { \ (tv)->tv_sec = (ts)->tv_sec; \ (tv)->tv_usec = (ts)->tv_nsec / 1000; \ } while (0) 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 */ #ifdef _KERNEL /* Operations on timespecs */ #define timespecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0) #define timespecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec) #define timespeccmp(tvp, uvp, cmp) \ (((tvp)->tv_sec == (uvp)->tv_sec) ? \ ((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \ ((tvp)->tv_sec cmp (uvp)->tv_sec)) #define timespecadd(vvp, uvp) \ do { \ (vvp)->tv_sec += (uvp)->tv_sec; \ (vvp)->tv_nsec += (uvp)->tv_nsec; \ if ((vvp)->tv_nsec >= 1000000000) { \ (vvp)->tv_sec++; \ (vvp)->tv_nsec -= 1000000000; \ } \ } while (0) #define timespecsub(vvp, uvp) \ do { \ (vvp)->tv_sec -= (uvp)->tv_sec; \ (vvp)->tv_nsec -= (uvp)->tv_nsec; \ if ((vvp)->tv_nsec < 0) { \ (vvp)->tv_sec--; \ (vvp)->tv_nsec += 1000000000; \ } \ } while (0) /* Operations on timevals. */ #define timevalclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 #define timevalisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) #define timevalcmp(tvp, uvp, cmp) \ (((tvp)->tv_sec == (uvp)->tv_sec) ? \ ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ ((tvp)->tv_sec cmp (uvp)->tv_sec)) /* timevaladd and timevalsub are not inlined */ #endif /* _KERNEL */ #ifndef _KERNEL /* NetBSD/OpenBSD compatible interfaces */ #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) #endif /* * 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 */ }; /* CLOCK_REALTIME and TIMER_ABSTIME are supposed to be in time.h */ #ifndef CLOCK_REALTIME #define CLOCK_REALTIME 0 #endif #define CLOCK_VIRTUAL 1 #define CLOCK_PROF 2 #define TIMER_RELTIME 0x0 /* relative timer */ #ifndef TIMER_ABSTIME #define TIMER_ABSTIME 0x1 /* absolute timer */ #endif #ifdef _KERNEL extern time_t time_second; void initclocks_pcpu(void); void getmicrouptime (struct timeval *tv); void getmicrotime (struct timeval *tv); void getnanouptime (struct timespec *tv); void getnanotime (struct timespec *tv); int itimerdecr (struct itimerval *itp, int usec); int itimerfix (struct timeval *tv); int ppsratecheck (struct timeval *, int *, int usec); int ratecheck (struct timeval *, const struct timeval *); void microuptime (struct timeval *tv); void microtime (struct timeval *tv); void nanouptime (struct timespec *ts); void nanotime (struct timespec *ts); void set_timeofday(struct timespec *ts); void timevaladd (struct timeval *, struct timeval *); void timevalsub (struct timeval *, struct timeval *); int tvtohz_high (struct timeval *); int tvtohz_low (struct timeval *); #else /* !_KERNEL */ #include #include __BEGIN_DECLS int adjtime (const struct timeval *, struct timeval *); int futimes (int, const struct timeval *); int getitimer (int, struct itimerval *); int gettimeofday (struct timeval *, struct timezone *); int lutimes (const char *, const struct timeval *); int setitimer (int, const struct itimerval *, struct itimerval *); int settimeofday (const struct timeval *, const struct timezone *); int utimes (const char *, const struct timeval *); __END_DECLS #endif /* !_KERNEL */ #endif /* !_SYS_TIME_H_ */