1/*	$NetBSD: schedule.h,v 1.4.6.1 2007/03/21 14:29:48 vanhu Exp $	*/
2
3/* Id: schedule.h,v 1.5 2006/05/03 21:53:42 vanhu Exp */
4
5/*
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef _SCHEDULE_H
35#define _SCHEDULE_H
36
37#include <sys/queue.h>
38#include "gnuc.h"
39
40/* scheduling table */
41/* the head is the nearest event. */
42struct sched {
43	time_t xtime;		/* event time which is as time(3). */
44				/*
45				 * if defined FIXY2038PROBLEM, this time
46				 * is from the time when called sched_init().
47				 */
48	void (*func) __P((void *)); /* call this function when timeout. */
49	void *param;		/* pointer to parameter */
50
51	int dead;		/* dead or alive */
52	long id;		/* for debug */
53	time_t created;		/* for debug */
54	time_t tick;		/* for debug */
55
56	TAILQ_ENTRY(sched) chain;
57};
58
59/* cancel schedule */
60#define SCHED_KILL(s)                                                          \
61do {                                                                           \
62	if(s != NULL){	   														\
63		sched_kill(s);                                                         \
64		s = NULL;                                                              \
65	}\
66} while(0)
67
68/* must be called after it's called from scheduler. */
69#define SCHED_INIT(s)	(s) = NULL
70
71struct scheddump {
72	time_t xtime;
73	long id;
74	time_t created;
75	time_t tick;
76};
77
78struct timeval *schedular __P((void));
79struct sched *sched_new __P((time_t, void (*func) __P((void *)), void *));
80void sched_kill __P((struct sched *));
81int sched_dump __P((caddr_t *, int *));
82void sched_init __P((void));
83void sched_scrub_param __P((void *));
84
85#endif /* _SCHEDULE_H */
86