xref: /freebsd/usr.sbin/rtadvd/timer_subr.h (revision 2a63c3be158216222d89a073dcbd6a72ee4aab5a)
137241896SHiroki Sato /*	$KAME: timer.h,v 1.5 2002/05/31 13:30:38 jinmei Exp $	*/
237241896SHiroki Sato 
3*8a16b7a1SPedro F. Giffuni /*-
4*8a16b7a1SPedro F. Giffuni  * SPDX-License-Identifier: BSD-3-Clause
5*8a16b7a1SPedro F. Giffuni  *
637241896SHiroki Sato  * Copyright (C) 1998 WIDE Project.
737241896SHiroki Sato  * All rights reserved.
837241896SHiroki Sato  *
937241896SHiroki Sato  * Redistribution and use in source and binary forms, with or without
1037241896SHiroki Sato  * modification, are permitted provided that the following conditions
1137241896SHiroki Sato  * are met:
1237241896SHiroki Sato  * 1. Redistributions of source code must retain the above copyright
1337241896SHiroki Sato  *    notice, this list of conditions and the following disclaimer.
1437241896SHiroki Sato  * 2. Redistributions in binary form must reproduce the above copyright
1537241896SHiroki Sato  *    notice, this list of conditions and the following disclaimer in the
1637241896SHiroki Sato  *    documentation and/or other materials provided with the distribution.
1737241896SHiroki Sato  * 3. Neither the name of the project nor the names of its contributors
1837241896SHiroki Sato  *    may be used to endorse or promote products derived from this software
1937241896SHiroki Sato  *    without specific prior written permission.
2037241896SHiroki Sato  *
2137241896SHiroki Sato  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
2237241896SHiroki Sato  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2337241896SHiroki Sato  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2437241896SHiroki Sato  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
2537241896SHiroki Sato  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2637241896SHiroki Sato  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2737241896SHiroki Sato  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2837241896SHiroki Sato  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2937241896SHiroki Sato  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
3037241896SHiroki Sato  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3137241896SHiroki Sato  * SUCH DAMAGE.
3237241896SHiroki Sato  */
3337241896SHiroki Sato 
3437241896SHiroki Sato #define	SSBUFLEN	1024
3537241896SHiroki Sato 
367d26db17SHiroki Sato #define TS_CMP(tsp, usp, cmp)						\
377d26db17SHiroki Sato 	(((tsp)->tv_sec == (usp)->tv_sec) ?				\
387d26db17SHiroki Sato 	    ((tsp)->tv_nsec cmp (usp)->tv_nsec) :			\
397d26db17SHiroki Sato 	    ((tsp)->tv_sec cmp (usp)->tv_sec))
407d26db17SHiroki Sato #define TS_ADD(tsp, usp, vsp)						\
417d26db17SHiroki Sato 	do {								\
427d26db17SHiroki Sato 		(vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec;		\
437d26db17SHiroki Sato 		(vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec;	\
447d26db17SHiroki Sato 		if ((vsp)->tv_nsec >= 1000000000L) {			\
457d26db17SHiroki Sato 			(vsp)->tv_sec++;				\
467d26db17SHiroki Sato 			(vsp)->tv_nsec -= 1000000000L;			\
477d26db17SHiroki Sato 		}							\
487d26db17SHiroki Sato 	} while (0)
497d26db17SHiroki Sato #define TS_SUB(tsp, usp, vsp)						\
507d26db17SHiroki Sato 	do {								\
517d26db17SHiroki Sato 		(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;		\
527d26db17SHiroki Sato 		(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;	\
537d26db17SHiroki Sato 		if ((vsp)->tv_nsec < 0) {				\
547d26db17SHiroki Sato 			(vsp)->tv_sec--;				\
557d26db17SHiroki Sato 			(vsp)->tv_nsec += 1000000000L;			\
567d26db17SHiroki Sato 		}							\
577d26db17SHiroki Sato 	} while (0)
5837241896SHiroki Sato 
597d26db17SHiroki Sato struct timespec *rtadvd_timer_rest(struct rtadvd_timer *);
6037241896SHiroki Sato char		*sec2str(uint32_t, char *buf);
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