timer.h revision 1.4 
1/*	$OpenBSD: timer.h,v 1.4 1999/04/19 21:02:30 niklas Exp $	*/
2/*	$EOM: timer.h,v 1.6 1999/04/11 22:35:55 ho Exp $	*/
3
4/*
5 * Copyright (c) 1998, 1999 Niklas Hallqvist.  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. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Ericsson Radio Systems.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * This code was written under funding by Ericsson Radio Systems.
35 */
36
37#ifndef _TIMER_H_
38#define _TIMER_H_
39
40#include <sys/param.h>
41#include <sys/queue.h>
42#include <sys/time.h>
43
44struct event {
45  TAILQ_ENTRY (event) link;
46  char *name;
47  void (*func) (void *);
48  void *arg;
49  struct timeval expiration;
50};
51
52extern void timer_init (void);
53extern void timer_next_event (struct timeval **);
54extern void timer_handle_expirations (void);
55extern struct event *timer_add_event (char *, void (*) (void *), void *,
56				      struct timeval *);
57extern void timer_remove_event (struct event *);
58extern void timer_report (void);
59
60#endif /* _TIMER_H_ */
61