xref: /dragonfly/usr.sbin/rtadvd/timer_subr.h (revision c17e6018)
1 /*	$FreeBSD: stable/10/usr.sbin/rtadvd/timer_subr.h 253970 2013-08-05 20:13:02Z hrs $	*/
2 /*	$KAME: timer.h,v 1.5 2002/05/31 13:30:38 jinmei Exp $	*/
3 
4 /*
5  * Copyright (C) 1998 WIDE Project.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the project nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #define	SSBUFLEN	1024
34 
35 #define TS_CMP(tsp, usp, cmp)						\
36 	(((tsp)->tv_sec == (usp)->tv_sec) ?				\
37 	    ((tsp)->tv_nsec cmp (usp)->tv_nsec) :			\
38 	    ((tsp)->tv_sec cmp (usp)->tv_sec))
39 #define TS_ADD(tsp, usp, vsp)						\
40 	do {								\
41 		(vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec;		\
42 		(vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec;	\
43 		if ((vsp)->tv_nsec >= 1000000000L) {			\
44 			(vsp)->tv_sec++;				\
45 			(vsp)->tv_nsec -= 1000000000L;			\
46 		}							\
47 	} while (0)
48 #define TS_SUB(tsp, usp, vsp)						\
49 	do {								\
50 		(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;		\
51 		(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;	\
52 		if ((vsp)->tv_nsec < 0) {				\
53 			(vsp)->tv_sec--;				\
54 			(vsp)->tv_nsec += 1000000000L;			\
55 		}							\
56 	} while (0)
57 
58 struct timespec *rtadvd_timer_rest(struct rtadvd_timer *);
59 char		*sec2str(uint32_t, char *buf);
60