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5.7

    1: 
    2: /*
    3:  * timer.h
    4:  *
    5:  * Written by Archie Cobbs <archie@freebsd.org>
    6:  * Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
    7:  * See ``COPYRIGHT.whistle''
    8:  */
    9: 
   10: #ifndef _TIMER_H_
   11: #define	_TIMER_H_
   12: 
   13: #include "defs.h"
   14: #include "event.h"
   15: 
   16: /*
   17:  * DEFINITIONS
   18:  */
   19: 
   20:   #define TICKSPERSEC	1000		/* Microsecond granularity */
   21:   #define SECONDS	TICKSPERSEC	/* Timers count in usec */
   22: 
   23:   struct pppTimer;
   24:   typedef struct pppTimer *PppTimer;
   25: 
   26:   struct pppTimer
   27:   {
   28:     EventRef	event;			/* Event registration */
   29:     u_int	load;			/* Initial load value */
   30:     void	(*func)(void *arg);	/* Called when timer expires */
   31:     void	*arg;			/* Arg passed to timeout function */
   32:     const char	*desc;
   33:     const char	*dbg;
   34:   };
   35: 
   36: /*
   37:  * FUNCTIONS
   38:  */
   39: 
   40: #define	TimerInit(timer, desc, load, handler, arg)				\
   41: 	    TimerInit2(timer, desc, load, handler, arg, #handler)
   42:   extern void	TimerInit2(PppTimer timer, const char *desc,
   43: 		  int load, void (*handler)(void *), void *arg, const char *dbg);
   44: #define	TimerStart(t)	\
   45: 	    TimerStart2(t, __FILE__, __LINE__)
   46:   extern void	TimerStart2(PppTimer t, const char *file, int line);
   47: #define	TimerStartRecurring(t)	\
   48: 	    TimerStartRecurring2(t, __FILE__, __LINE__)
   49:   extern void	TimerStartRecurring2(PppTimer t, const char *file, int line);
   50: #define	TimerStop(t)	\
   51: 	    TimerStop2(t, __FILE__, __LINE__)
   52:   extern void	TimerStop2(PppTimer t, const char *file, int line);
   53:   extern int	TimerRemain(PppTimer t);
   54:   extern int	TimerStarted(PppTimer t);
   55: 
   56: #endif
   57: