xref: /freebsd/usr.sbin/ppp/timer.h (revision 57718be8fa0bd5edc11ab9a72e68cc71982939a6)
1 /*-
2  * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
3  *          based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
4  *                           Internet Initiative Japan, Inc (IIJ)
5  * 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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #define	TICKUNIT	100000			/* usec's per Unit */
32 #define	SECTICKS	(1000000/TICKUNIT)	/* Units per second */
33 
34 struct pppTimer {
35   int state;
36   const char *name;
37   u_long rest;			/* Ticks to expire */
38   u_long load;			/* Initial load value */
39   void (*func)(void *);		/* Function called when timer is expired */
40   void *arg;			/* Argument passed to timeout function */
41   struct pppTimer *next;	/* Link to next timer */
42   struct pppTimer *enext;	/* Link to next expired timer */
43 };
44 
45 #define	TIMER_STOPPED	0
46 #define	TIMER_RUNNING	1
47 #define	TIMER_EXPIRED	2
48 
49 struct prompt;
50 
51 extern void timer_Start(struct pppTimer *);
52 extern void timer_Stop(struct pppTimer *);
53 extern void timer_InitService(int);
54 extern void timer_TermService(void);
55 extern void timer_Show(int LogLevel, struct prompt *);
56