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 |  
/* Variables globales */
typedef struct Mon_Signal_ {
 
         int         Type ;
 
         double      NextCall ;
 
         double      Interval ;
         double      IntervalOrigin ;
 
         void       *fct ;
         void       *data ;
 
} Mon_Signal ;
 
static MonSignal  Signaux[2] ;
static int            NSignaux = 0 ;
 
 
 
/*
 * U p d a t e s _ N e x t C a l l 
 *
 */
static void Updates_NextCall ( void )
{
  int                i, n = 0, j=0 ;
  double             d, ref ;
  struct itimerval   rttimer;
  struct itimerval   old_rttimer;
 
 
#ifdef DEBUG 
  fprintf (stderr, " UPDATE ");
#endif
  if ( NSignaux != 0 )
    {
      /* Computes the closest expiration date */
       d = DBL_MAX ;
       for ( i = 0 ; i < NSignaux ; i++ )
	 {
	   n = 1 ;
	   if ( Signaux[i].NextCall  < d )
	     d = Signaux[i].NextCall ;
 
#ifdef DEBUG 
	   fprintf (stderr, " i %d tocomp %f",i,Signaux[i].NextCall);
#endif
	 }
 
       /* Now sets the timer to the next expiration date */
       if ( ! n )
	 {
#ifdef DEBUG
	   fprintf (stderr, " Disarms because no good signal anymore !!!");
#endif
	   rttimer.it_value.tv_sec     = 0 ;
	   rttimer.it_value.tv_usec    = 0 ;
 
	   NSignaux = 0 ;
	 }
       else
	 {
	   ref = Mon_GetClock();
	   if ( d <= ref )
	     {
	       rttimer.it_value.tv_sec     = 0 ;
	       rttimer.it_value.tv_usec    = 100 ;
	     }
	   else
	       j = 1 ;
	 }
 
       rttimer.it_interval.tv_sec  = 0 ;
       rttimer.it_interval.tv_usec = 0 ;
 
       signal ( SIGALRM, (void (*)())Timer_Expiration );
 
       if ( j )
	 {
	   LASTCALL = Mon_GetClock(); ;
	   d = d - LASTCALL ;
	   i = (int)d ;
	   j = (int)(((d - (double)i)*1000000.0)+0.5) ;
	   rttimer.it_value.tv_sec     = i ;
	   rttimer.it_value.tv_usec    = j ;
	   if ( (rttimer.it_value.tv_sec == 0) && (rttimer.it_value.tv_usec < 100) )
	     rttimer.it_value.tv_usec = 100 ;
#ifdef DEBUG
	   fprintf (stderr, " Arms at %d s %d musecs at %f pour %f",rttimer.it_value.tv_sec,rttimer.it_value.tv_usec,LASTCALL,(d+LASTCALL));
#endif
	 }
       setitimer (ITIMER_REAL, &rttimer, &old_rttimer);
    }
  else
    {
#ifdef DEBUG
       fprintf (stderr, " Disarms because blocked or no signal !!!");
#endif
       rttimer.it_value.tv_sec     = 0 ;
       rttimer.it_value.tv_usec    = 0 ;
       rttimer.it_interval.tv_sec  = 0 ;
       rttimer.it_interval.tv_usec = 0 ;
 
       signal ( SIGALRM, (void (*)())Timer_Expiration );
       setitimer (ITIMER_REAL, &rttimer, &old_rttimer);
    }
}
 
 
/*
 * T i m e r _ E x p i r a t i o n
 *
 */
static void Timer_Expiration ( void )
{
 int              i, j ;
 double           ref ;
 
 
 ref = Mon_GetClock() ;
 
 
#ifdef DEBUG
 fprintf (stderr, " Expires a %f [%f]",ref,ref-LASTCALL);
#endif
 
/*
--- Loops on the signals
*/
 for ( i = 0 ; i < NSignaux ; i++ )
   {
#ifdef DEBUG
     fprintf (stderr, " i %d comp %f ref %f",i,(Signaux[i].NextCall-ref),ref);
#endif
 
/*
  Looks if this this signal has or should have expired
*/
     if ( (fabs(ref - Signaux[i].NextCall) < 0.000100) || (ref > Signals[i].NextCall) )
       { 
	 /* Now calls the registered function */
	 if ( Signaux[i].fct != (MCore_Proc *)NULL )
	   {
#ifdef DEBUG
	     fprintf (stderr, " Calls fct signal %d",i);
#endif
	     j = Signaux[i].fct( Signaux[i].data ) ;
	   }
 
 	 /* If this signal has to stay, rearms it for the next pass */
 ...............
     }
   }
 
 
/*
--- Destroys signals and resets next call if any remains
*/
#ifdef DEBUG
 fprintf (stderr, " Destroy?");
#endif
/*  i = Checks_For_Destroyed_Signals(); */
 
#ifdef DEBUG
 fprintf (stderr, " Update?");
#endif
  Updates_NextCall();
 
  return ;
}
 
 
 
 
 
/*
 * A d d T i m e r
 *
 */
int AddTimer ( int type, double start, double interval, void *proc, void *clientdata )
{
int              i, Type, start_realsecs, start_realmusecs, day_of_week ;
double           start_micro, interval_micro, d ;
time_t           now ;
struct tm       *tbroken ;
 
 
  if ( (type < 0) || (type > 1) )
      Type = 0 ;
  else
      Type = type ;
 
   i = NSignaux ;
 
 
/*
--- If we use some predefined values, computes now the real values
*/ 
   /* Starting value */
   start_micro = start ;
 
   /* Interval value */
   interval_micro = interval ;
 
/*
--- Computes what it makes in real
*/
   start_realsecs = (int)start_micro ;
   start_realmusecs = (int)((start_micro - (double)start_realsecs)*1000000.0) ;
 
/*
--- Stores the values into the buffer
*/
   d = Mon_GetClock() ;
   Signaux[i].NextCall = d + (double)start_realsecs + ((double)start_realmusecs/1000000.) ;
   Signaux[i].Interval = interval_micro ;
   Signaux[i].IntervalOrigin = interval ;
   Signaux[i].fct = proc ;
   Signaux[i].data = clientdata ;
 
/*
--- Now starts the timer
*/
   NSignaux = NSignaux + 1 ;
   Updates_NextCall ();
 
#ifdef DEBUG
   fprintf (stderr, " Add a signal (%f s [%f][clock %f] at %g interval) => %d signals",
	    (Signaux[i].NextCall - d),Signaux[i].NextCall,d,interval,NSignaux);
#endif
 
   return SUCCESS ;
} | 
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