Home | History | Annotate | Download | only in sys
      1 /*-
      2  * Copyright (c) 1982, 1986, 1993
      3  *	The Regents of the University of California.  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  * 4. Neither the name of the University nor the names of its contributors
     14  *    may be used to endorse or promote products derived from this software
     15  *    without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  *
     29  *	@(#)time.h	8.5 (Berkeley) 5/4/95
     30  * from: FreeBSD: src/sys/sys/time.h,v 1.43 2000/03/20 14:09:05 phk Exp
     31  *	$FreeBSD$
     32  */
     33 
     34 #ifndef _SYS_TIMESPEC_H_
     35 #define _SYS_TIMESPEC_H_
     36 
     37 #include <sys/cdefs.h>
     38 #include <sys/_timespec.h>
     39 
     40 #if __BSD_VISIBLE
     41 #define	TIMEVAL_TO_TIMESPEC(tv, ts)					\
     42 	do {								\
     43 		(ts)->tv_sec = (tv)->tv_sec;				\
     44 		(ts)->tv_nsec = (tv)->tv_usec * 1000;			\
     45 	} while (0)
     46 #define	TIMESPEC_TO_TIMEVAL(tv, ts)					\
     47 	do {								\
     48 		(tv)->tv_sec = (ts)->tv_sec;				\
     49 		(tv)->tv_usec = (ts)->tv_nsec / 1000;			\
     50 	} while (0)
     51 
     52 #endif /* __BSD_VISIBLE */
     53 
     54 /*
     55  * Structure defined by POSIX.1b to be like a itimerval, but with
     56  * timespecs. Used in the timer_*() system calls.
     57  */
     58 struct itimerspec {
     59 	struct timespec  it_interval;
     60 	struct timespec  it_value;
     61 };
     62 
     63 #endif /* _SYS_TIMESPEC_H_ */
     64