1 /* $OpenBSD: timer.c,v 1.8 2012/06/22 16:06:31 mikeb Exp $ */ 2 3 /* 4 * Copyright (c) 2010 Reyk Floeter <reyk@vantronix.net> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/queue.h> 21 #include <sys/socket.h> 22 #include <sys/uio.h> 23 24 #include <stdio.h> 25 #include <stdlib.h> 26 #include <unistd.h> 27 #include <string.h> 28 #include <errno.h> 29 #include <fcntl.h> 30 #include <ctype.h> 31 #include <event.h> 32 33 #include "iked.h" 34 35 void timer_callback(int, short, void *); 36 37 void 38 timer_initialize(struct iked *env, struct iked_timer *tmr, 39 void (*cb)(struct iked *, void *), void *arg) 40 { 41 tmr->tmr_env = env; 42 tmr->tmr_cb = cb; 43 tmr->tmr_cbarg = arg; 44 evtimer_set(&tmr->tmr_ev, timer_callback, tmr); 45 } 46 47 int 48 timer_initialized(struct iked *env, struct iked_timer *tmr) 49 { 50 if (tmr && tmr->tmr_env == env && tmr->tmr_cb && 51 evtimer_initialized(&tmr->tmr_ev)) 52 return (1); 53 return (0); 54 } 55 56 void 57 timer_register(struct iked *env, struct iked_timer *tmr, int timeout) 58 { 59 struct timeval tv = { timeout }; 60 61 if (evtimer_initialized(&tmr->tmr_ev) && 62 evtimer_pending(&tmr->tmr_ev, NULL)) 63 evtimer_del(&tmr->tmr_ev); 64 65 evtimer_add(&tmr->tmr_ev, &tv); 66 } 67 68 void 69 timer_deregister(struct iked *env, struct iked_timer *tmr) 70 { 71 evtimer_del(&tmr->tmr_ev); 72 } 73 74 void 75 timer_callback(int fd, short event, void *arg) 76 { 77 struct iked_timer *tmr = arg; 78 79 if (tmr->tmr_cb) 80 tmr->tmr_cb(tmr->tmr_env, tmr->tmr_cbarg); 81 } 82