1/*	$Id: timer.h,v 1.1.1.1 2006/12/04 00:45:30 Exp $	*/
2/*	ported from KAME: timer.h,v 1.1 2002/05/16 06:04:08 jinmei Exp	*/
3
4/*
5 * Copyright (C) 2002 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) (((a).tv_sec < (b).tv_sec) ||\
35			  (((a).tv_sec == (b).tv_sec) && \
36			    ((a).tv_usec < (b).tv_usec)))
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/* a == b */
42#define TIMEVAL_EQUAL(a, b) ((a).tv_sec == (b).tv_sec &&\
43			     (a).tv_usec == (b).tv_usec)
44
45#define MARK_CLEAR 0x00
46#define MARK_REMOVE 0x01
47
48struct dhcp6_timer {
49	LIST_ENTRY(dhcp6_timer) link;
50
51	struct timeval tm;
52	int flag;
53
54	struct dhcp6_timer *(*expire) __P((void *));
55	void *expire_data;
56};
57
58void dhcp6_timer_init __P((void));
59struct dhcp6_timer *dhcp6_add_timer __P((struct dhcp6_timer *(*) __P((void *)),
60					 void *));
61void dhcp6_set_timer __P((struct timeval *, struct dhcp6_timer *));
62void dhcp6_remove_timer __P((struct dhcp6_timer *));
63struct timeval * dhcp6_check_timer __P((void));
64struct timeval * dhcp6_timer_rest __P((struct dhcp6_timer *));
65
66void timeval_sub __P((struct timeval *, struct timeval *,
67			     struct timeval *));
68