1 /* $FreeBSD$ */ 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 /* a < b */ 34 #define TIMEVAL_LT(a, b) \ 35 (((a)->tv_sec < (b)->tv_sec) || \ 36 (((a)->tv_sec == (b)->tv_sec) && \ 37 ((a)->tv_usec < (b)->tv_usec))) 38 39 /* a <= b */ 40 #define TIMEVAL_LEQ(a, b) \ 41 (((a)->tv_sec < (b)->tv_sec) || \ 42 (((a)->tv_sec == (b)->tv_sec) && \ 43 ((a)->tv_usec <= (b)->tv_usec))) 44 45 #define TIMEVAL_EQUAL(a,b) \ 46 (((a)->tv_sec == (b)->tv_sec) && \ 47 ((a)->tv_usec == (b)->tv_usec)) 48 49 extern TAILQ_HEAD(rtadvd_timer_head_t, rtadvd_timer) ra_timer; 50 struct rtadvd_timer { 51 TAILQ_ENTRY(rtadvd_timer) rat_next; 52 53 struct rainfo *rat_rai; 54 struct timeval rat_tm; 55 struct rtadvd_timer *(*rat_expire)(void *); 56 void *rat_expire_data; 57 void (*rat_update)(void *, struct timeval *); 58 void *rat_update_data; 59 }; 60 61 void rtadvd_timer_init(void); 62 struct rtadvd_timer *rtadvd_add_timer(struct rtadvd_timer *(*)(void *), 63 void (*)(void *, struct timeval *), void *, void *); 64 void rtadvd_set_timer(struct timeval *, 65 struct rtadvd_timer *); 66 void rtadvd_remove_timer(struct rtadvd_timer *); 67 struct timeval *rtadvd_check_timer(void); 68 struct timeval *rtadvd_timer_rest(struct rtadvd_timer *); 69 void TIMEVAL_ADD(struct timeval *, struct timeval *, 70 struct timeval *); 71 void TIMEVAL_SUB(struct timeval *, struct timeval *, 72 struct timeval *); 73