Move kernel dependent parts of <sys/time.h>
Move the kernel dependent parts of <sys/time.h> to new system-specific header file <machine/_time.h>. Provide an empty default implementation. Add a specialized implementation for RTEMS. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
This commit is contained in:
Sebastian Huber
Corinna Vinschen
parent
3fc46dc562
commit
3156cdcc80
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@ -0,0 +1,3 @@
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#ifndef _SYS_TIME_H_
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#error "must be included via <sys/time.h>"
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#endif /* !_SYS_TIME_H_ */
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@ -251,47 +251,6 @@ tvtosbt(struct timeval _tv)
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}
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#endif /* __BSD_VISIBLE */
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#ifdef _KERNEL
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/* Operations on timespecs */
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#define timespecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0)
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#define timespecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec)
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#define timespeccmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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#define timespecadd(vvp, uvp) \
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do { \
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(vvp)->tv_sec += (uvp)->tv_sec; \
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(vvp)->tv_nsec += (uvp)->tv_nsec; \
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if ((vvp)->tv_nsec >= 1000000000) { \
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(vvp)->tv_sec++; \
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(vvp)->tv_nsec -= 1000000000; \
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} \
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} while (0)
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#define timespecsub(vvp, uvp) \
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do { \
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(vvp)->tv_sec -= (uvp)->tv_sec; \
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(vvp)->tv_nsec -= (uvp)->tv_nsec; \
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if ((vvp)->tv_nsec < 0) { \
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(vvp)->tv_sec--; \
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(vvp)->tv_nsec += 1000000000; \
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} \
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} while (0)
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/* Operations on timevals. */
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#define timevalclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
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#define timevalisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
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#define timevalcmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_usec cmp (uvp)->tv_usec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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/* timevaladd and timevalsub are not inlined */
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#endif /* _KERNEL */
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/*
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* Names of the interval timers, and structure
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* defining a timer setting.
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@ -305,116 +264,9 @@ struct itimerval {
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struct timeval it_value; /* current value */
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};
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#ifdef _KERNEL
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/*
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* Kernel to clock driver interface.
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*/
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void inittodr(time_t base);
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void resettodr(void);
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extern volatile time_t time_second;
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extern volatile time_t time_uptime;
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extern struct bintime boottimebin;
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extern struct timeval boottime;
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extern struct bintime tc_tick_bt;
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extern sbintime_t tc_tick_sbt;
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extern struct bintime tick_bt;
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extern sbintime_t tick_sbt;
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extern int tc_precexp;
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extern int tc_timepercentage;
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extern struct bintime bt_timethreshold;
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extern struct bintime bt_tickthreshold;
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extern sbintime_t sbt_timethreshold;
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extern sbintime_t sbt_tickthreshold;
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/*
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* Functions for looking at our clock: [get]{bin,nano,micro}[up]time()
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*
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* Functions without the "get" prefix returns the best timestamp
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* we can produce in the given format.
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*
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* "bin" == struct bintime == seconds + 64 bit fraction of seconds.
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* "nano" == struct timespec == seconds + nanoseconds.
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* "micro" == struct timeval == seconds + microseconds.
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*
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* Functions containing "up" returns time relative to boot and
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* should be used for calculating time intervals.
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*
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* Functions without "up" returns UTC time.
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*
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* Functions with the "get" prefix returns a less precise result
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* much faster than the functions without "get" prefix and should
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* be used where a precision of 1/hz seconds is acceptable or where
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* performance is priority. (NB: "precision", _not_ "resolution" !)
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*/
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void binuptime(struct bintime *bt);
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void nanouptime(struct timespec *tsp);
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void microuptime(struct timeval *tvp);
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static __inline sbintime_t
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sbinuptime(void)
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{
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struct bintime _bt;
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binuptime(&_bt);
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return (bttosbt(_bt));
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}
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void bintime(struct bintime *bt);
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void nanotime(struct timespec *tsp);
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void microtime(struct timeval *tvp);
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void getbinuptime(struct bintime *bt);
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void getnanouptime(struct timespec *tsp);
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void getmicrouptime(struct timeval *tvp);
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static __inline sbintime_t
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getsbinuptime(void)
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{
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struct bintime _bt;
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getbinuptime(&_bt);
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return (bttosbt(_bt));
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}
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void getbintime(struct bintime *bt);
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void getnanotime(struct timespec *tsp);
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void getmicrotime(struct timeval *tvp);
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/* Other functions */
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int itimerdecr(struct itimerval *itp, int usec);
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int itimerfix(struct timeval *tv);
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int ppsratecheck(struct timeval *, int *, int);
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int ratecheck(struct timeval *, const struct timeval *);
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void timevaladd(struct timeval *t1, const struct timeval *t2);
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void timevalsub(struct timeval *t1, const struct timeval *t2);
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int tvtohz(struct timeval *tv);
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#define TC_DEFAULTPERC 5
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#define BT2FREQ(bt) \
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(((uint64_t)0x8000000000000000 + ((bt)->frac >> 2)) / \
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((bt)->frac >> 1))
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#define SBT2FREQ(sbt) ((SBT_1S + ((sbt) >> 1)) / (sbt))
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#define FREQ2BT(freq, bt) \
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{ \
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(bt)->sec = 0; \
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(bt)->frac = ((uint64_t)0x8000000000000000 / (freq)) << 1; \
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}
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#define TIMESEL(sbt, sbt2) \
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(((sbt2) >= sbt_timethreshold) ? \
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((*(sbt) = getsbinuptime()), 1) : ((*(sbt) = sbinuptime()), 0))
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#else /* !_KERNEL */
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#ifndef _KERNEL
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#include <time.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int _EXFUN(utimes, (const char *__path, const struct timeval *__tvp));
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@ -444,5 +296,6 @@ int _EXFUN(_gettimeofday, (struct timeval *__p, void *__tz));
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__END_DECLS
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#endif /* !_KERNEL */
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#include <machine/_time.h>
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#endif /* !_SYS_TIME_H_ */
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@ -0,0 +1,199 @@
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/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)time.h 8.5 (Berkeley) 5/4/95
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* $FreeBSD$
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*/
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#ifndef _SYS_TIME_H_
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#error "must be included via <sys/time.h>"
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#else /* _SYS_TIME_H_ */
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__BEGIN_DECLS
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extern volatile time_t _Timecounter_Time_second;
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extern volatile time_t _Timecounter_Time_uptime;
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extern struct bintime _Timecounter_Boottimebin;
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void _Timecounter_Binuptime(struct bintime *);
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void _Timecounter_Nanouptime(struct timespec *);
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void _Timecounter_Microuptime(struct timeval *);
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void _Timecounter_Bintime(struct bintime *);
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void _Timecounter_Nanotime(struct timespec *);
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void _Timecounter_Microtime(struct timeval *);
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void _Timecounter_Getbinuptime(struct bintime *);
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void _Timecounter_Getnanouptime(struct timespec *);
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void _Timecounter_Getmicrouptime(struct timeval *);
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void _Timecounter_Getbintime(struct bintime *);
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void _Timecounter_Getnanotime(struct timespec *);
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void _Timecounter_Getmicrotime(struct timeval *);
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__END_DECLS
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#ifdef _KERNEL
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/* Operations on timespecs */
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#define timespecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0)
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#define timespecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec)
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#define timespeccmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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#define timespecadd(vvp, uvp) \
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do { \
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(vvp)->tv_sec += (uvp)->tv_sec; \
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(vvp)->tv_nsec += (uvp)->tv_nsec; \
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if ((vvp)->tv_nsec >= 1000000000) { \
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(vvp)->tv_sec++; \
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(vvp)->tv_nsec -= 1000000000; \
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} \
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} while (0)
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#define timespecsub(vvp, uvp) \
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do { \
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(vvp)->tv_sec -= (uvp)->tv_sec; \
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(vvp)->tv_nsec -= (uvp)->tv_nsec; \
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if ((vvp)->tv_nsec < 0) { \
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(vvp)->tv_sec--; \
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(vvp)->tv_nsec += 1000000000; \
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} \
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} while (0)
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/* Operations on timevals. */
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#define timevalclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
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#define timevalisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
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#define timevalcmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_usec cmp (uvp)->tv_usec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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/* timevaladd and timevalsub are not inlined */
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/*
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* Kernel to clock driver interface.
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*/
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void inittodr(time_t base);
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void resettodr(void);
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#define time_second _Timecounter_Time_second
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#define time_uptime _Timecounter_Time_uptime
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#define boottimebin _Timecounter_Boottimebin
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extern struct timeval boottime;
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extern struct bintime tc_tick_bt;
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extern sbintime_t tc_tick_sbt;
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extern struct bintime tick_bt;
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extern sbintime_t tick_sbt;
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extern int tc_precexp;
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extern int tc_timepercentage;
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extern struct bintime bt_timethreshold;
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extern struct bintime bt_tickthreshold;
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extern sbintime_t sbt_timethreshold;
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extern sbintime_t sbt_tickthreshold;
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/*
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* Functions for looking at our clock: [get]{bin,nano,micro}[up]time()
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*
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* Functions without the "get" prefix returns the best timestamp
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* we can produce in the given format.
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*
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* "bin" == struct bintime == seconds + 64 bit fraction of seconds.
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* "nano" == struct timespec == seconds + nanoseconds.
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* "micro" == struct timeval == seconds + microseconds.
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*
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* Functions containing "up" returns time relative to boot and
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* should be used for calculating time intervals.
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*
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* Functions without "up" returns UTC time.
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*
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* Functions with the "get" prefix returns a less precise result
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* much faster than the functions without "get" prefix and should
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* be used where a precision of 1/hz seconds is acceptable or where
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* performance is priority. (NB: "precision", _not_ "resolution" !)
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*/
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#define binuptime(_bt) _Timecounter_Binuptime(_bt)
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#define nanouptime(_tsp) _Timecounter_Nanouptime(_tsp)
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#define microuptime(_tvp) _Timecounter_Microuptime(_tvp)
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static __inline sbintime_t
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sbinuptime(void)
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{
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struct bintime _bt;
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binuptime(&_bt);
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return (bttosbt(_bt));
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}
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#define bintime(_bt) _Timecounter_Bintime(_bt)
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#define nanotime(_tsp) _Timecounter_Nanotime(_tsp)
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#define microtime(_tvp) _Timecounter_Microtime(_tvp)
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#define getbinuptime(_bt) _Timecounter_Getbinuptime(_bt)
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#define getnanouptime(_tsp) _Timecounter_Getnanouptime(_tsp)
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#define getmicrouptime(_tvp) _Timecounter_Getmicrouptime(_tvp)
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static __inline sbintime_t
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getsbinuptime(void)
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{
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struct bintime _bt;
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getbinuptime(&_bt);
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return (bttosbt(_bt));
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}
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#define getbintime(_bt) _Timecounter_Getbintime(_bt)
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#define getnanotime(_tsp) _Timecounter_Getnanotime(_tsp)
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#define getmicrotime(_tvp) _Timecounter_Getmicrotime(_tvp)
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/* Other functions */
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int itimerdecr(struct itimerval *itp, int usec);
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int itimerfix(struct timeval *tv);
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int ppsratecheck(struct timeval *, int *, int);
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int ratecheck(struct timeval *, const struct timeval *);
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void timevaladd(struct timeval *t1, const struct timeval *t2);
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void timevalsub(struct timeval *t1, const struct timeval *t2);
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int tvtohz(struct timeval *tv);
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#define TC_DEFAULTPERC 5
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#define BT2FREQ(bt) \
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(((uint64_t)0x8000000000000000 + ((bt)->frac >> 2)) / \
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((bt)->frac >> 1))
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#define SBT2FREQ(sbt) ((SBT_1S + ((sbt) >> 1)) / (sbt))
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#define FREQ2BT(freq, bt) \
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{ \
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(bt)->sec = 0; \
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(bt)->frac = ((uint64_t)0x8000000000000000 / (freq)) << 1; \
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}
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#define TIMESEL(sbt, sbt2) \
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(((sbt2) >= sbt_timethreshold) ? \
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((*(sbt) = getsbinuptime()), 1) : ((*(sbt) = sbinuptime()), 0))
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#endif /* _KERNEL */
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#endif /* _SYS_TIME_H_ */
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