1 /* $NetBSD: timer.h,v 1.2 1999/07/06 13:02:09 itojun Exp $ */ 2 3 /* 4 * Copyright (C) 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* a < b */ 33 #define TIMEVAL_LT(a, b) (((a).tv_sec < (b).tv_sec) ||\ 34 (((a).tv_sec == (b).tv_sec) && \ 35 ((a).tv_usec < (b).tv_usec))) 36 37 /* a <= b */ 38 #define TIMEVAL_LEQ(a, b) (((a).tv_sec < (b).tv_sec) ||\ 39 (((a).tv_sec == (b).tv_sec) &&\ 40 ((a).tv_usec <= (b).tv_usec))) 41 42 struct rtadvd_timer { 43 struct rtadvd_timer *next; 44 struct rtadvd_timer *prev; 45 struct rainfo *rai; 46 struct timeval tm; 47 48 void (*expire) __P((void *)); /* expiration function */ 49 void *expire_data; 50 void (*update) __P((void *, struct timeval *)); /* update function */ 51 void *update_data; 52 }; 53 54 void rtadvd_timer_init __P((void)); 55 struct rtadvd_timer *rtadvd_add_timer __P((void (*) __P((void *)), 56 void (*) __P((void *, struct timeval *)), void *, void *)); 57 void rtadvd_set_timer __P((struct timeval *, struct rtadvd_timer *)); 58 struct timeval * rtadvd_check_timer __P((void)); 59 struct timeval * rtadvd_timer_rest __P((struct rtadvd_timer *)); 60 void TIMEVAL_ADD __P((struct timeval *, struct timeval *, 61 struct timeval *)); 62 void TIMEVAL_SUB __P((struct timeval *, struct timeval *, 63 struct timeval *)); 64