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to see if there's anything to do, schedule the next alarm based on the next required timeout. This decreases the load when there are lots of relatively idle ppp processes. While I'm in there, handle the possibility that a timeout makes the timer element go out of scope by grabbing the enext pointer before executing the timer function.
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/*
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* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
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*
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* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the Internet Initiative Japan. The name of the
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* IIJ may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id: timer.h,v 1.7 1998/06/20 01:36:38 brian Exp $
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*
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* TODO:
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*/
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#define TICKUNIT 100000 /* usec's per Unit */
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#define SECTICKS (1000000/TICKUNIT) /* Units per second */
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struct pppTimer {
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int state;
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const char *name;
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u_long rest; /* Ticks to expire */
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u_long load; /* Initial load value */
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void (*func)(void *); /* Function called when timer is expired */
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void *arg; /* Argument passed to timeout function */
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struct pppTimer *next; /* Link to next timer */
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struct pppTimer *enext; /* Link to next expired timer */
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};
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#define TIMER_STOPPED 0
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#define TIMER_RUNNING 1
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#define TIMER_EXPIRED 2
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struct prompt;
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extern void timer_Start(struct pppTimer *);
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extern void timer_Stop(struct pppTimer *);
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extern void timer_InitService(int);
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extern void timer_TermService(void);
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extern void timer_Show(int LogLevel, struct prompt *);
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