1 /* $OpenBSD: timer.c,v 1.13 2016/09/13 10:49:52 mikeb Exp $ */
2
3 /*
4 * Copyright (c) 2010-2013 Reyk Floeter <reyk@openbsd.org>
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/queue.h>
20 #include <sys/socket.h>
21 #include <sys/uio.h>
22
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <string.h>
27 #include <errno.h>
28 #include <fcntl.h>
29 #include <ctype.h>
30 #include <event.h>
31
32 #include "iked.h"
33
34 void timer_callback(int, short, void *);
35
36 void
timer_set(struct iked * env,struct iked_timer * tmr,void (* cb)(struct iked *,void *),void * arg)37 timer_set(struct iked *env, struct iked_timer *tmr,
38 void (*cb)(struct iked *, void *), void *arg)
39 {
40 if (evtimer_initialized(&tmr->tmr_ev) &&
41 evtimer_pending(&tmr->tmr_ev, NULL))
42 evtimer_del(&tmr->tmr_ev);
43
44 tmr->tmr_env = env;
45 tmr->tmr_cb = cb;
46 tmr->tmr_cbarg = arg;
47 evtimer_set(&tmr->tmr_ev, timer_callback, tmr);
48 }
49
50 void
timer_add(struct iked * env,struct iked_timer * tmr,int timeout)51 timer_add(struct iked *env, struct iked_timer *tmr, int timeout)
52 {
53 struct timeval tv = { timeout };
54
55 evtimer_add(&tmr->tmr_ev, &tv);
56 }
57
58 void
timer_del(struct iked * env,struct iked_timer * tmr)59 timer_del(struct iked *env, struct iked_timer *tmr)
60 {
61 if (tmr->tmr_env == env && tmr->tmr_cb &&
62 evtimer_initialized(&tmr->tmr_ev))
63 evtimer_del(&tmr->tmr_ev);
64 }
65
66 void
timer_callback(int fd,short event,void * arg)67 timer_callback(int fd, short event, void *arg)
68 {
69 struct iked_timer *tmr = arg;
70
71 if (tmr->tmr_cb)
72 tmr->tmr_cb(tmr->tmr_env, tmr->tmr_cbarg);
73 }
74