kc3-lang/libevent/compat/sys/_time.h

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• Hash : 9d2401ff
  Author :
  Date : 2002-10-07T00:47:34
  

  portability fixes from marius@umich.edu.
  
  
  svn:r35
  

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• compat/sys/_time.h

• /*	$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. 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	8.2 (Berkeley) 7/10/94
   */
  
  #ifndef _SYS_TIME_H_
  #define _SYS_TIME_H_
  
  #include <sys/types.h>
  
  /*
   * 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_ */
  

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