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timer.h File Reference

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Data Structures

struct  timer_struct

Typedefs

typedef timer_struct timer_struct_t

Functions

int delay_uS (int)
void * periodic_thread (void *)

Typedef Documentation

typedef struct timer_struct timer_struct_t
 

Referenced by periodic_thread(), and scheduler().

Function Documentation

int delay_uS (  int   ) 
 

Definition at line 65 of file timer.c.

References jitter().

Referenced by main(), and periodic_thread().

00065                      {
00066   struct timeval to;
00067   long time_error;
00068   to.tv_sec = 0;
00069   to.tv_usec = uS;    
00070   select(0,NULL,NULL,NULL,&to);
00071   time_error=jitter((long)uS);
00072   if ((time_error>JITTER_MAX)||(time_error<-JITTER_MAX)) {
00073     printf("%ld\n",time_error);
00074   }
00075   return (0);
00076 }

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void* periodic_thread (  void *   ) 
 

Definition at line 78 of file timer.c.

References delay_uS(), timer_struct::timeout, timer_struct::timer_period, and timer_struct_t.

Referenced by scheduler().

00078                                  {
00079   int status;
00080   timer_struct_t *tp = (timer_struct_t *) arg;
00081 
00082   while (1) {
00083     delay_uS(tp->timer_period);
00084     tp->timeout=1;
00085   }
00086   status = pthread_detach(pthread_self());
00087   return NULL;
00088 }

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