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* [Xenomai-core] rt_task_suspend, rt_task_delete chooses wrong tasks
@ 2011-08-01 10:04 Roberto Bielli
  2011-08-01 14:42 ` Gilles Chanteperdrix
  0 siblings, 1 reply; 4+ messages in thread
From: Roberto Bielli @ 2011-08-01 10:04 UTC (permalink / raw)
  To: xenomai

Hi,

i see a big problem in xenomai. Aftear a certain number of task deletion 
(rt_task_delete) and re-create task
the RT_TASK descriptors that i have in my application don't match with 
the correct task.

1. function for deleting the task.

int mtsuspendtask( int idTsk )
{
   int err;
   RT_TASK_INFO tskInfo;
   RT_TASK_INFO tskInfoD;

   rt_task_inquire( rt_task_self(), &tskInfo );

     //non sospendo task che non esistono
   if((err = (rt_task_inquire (tabRtTask[idTsk].rtDesc, NULL ))) != 0)
   {
       AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_inquire (ts): %s - err 
%d (caller: %s)", tabRtTask[idTsk].name, err, tskInfo.name );
       return err;
   }

   err  = rt_task_suspend ( tabRtTask[idTsk].rtDesc );
   AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_suspend : %s - err %d 
(caller: %s)", tabRtTask[idTsk].name, err, tskInfo.name );
   if( err != 0 )
   {
       return err;
   }

   err  = rt_task_delete (tabRtTask[idTsk].rtDesc);
   AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_delete  : %s - err %d 
(caller: %s)", tabRtTask[idTsk].name, err, tskInfo.name );
   if ((err != 0) && (err != -3))
   {
       return (err);
   }

   while ((err = (rt_task_inquire (tabRtTask[idTsk].rtDesc, &tskInfoD))) 
== 0)
   {
       AltTraceInN(ALTRACE_LEV_OS_TASK, "idTsk in tabella: %d", idTsk );
       AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_inquire : %s", 
tskInfoD.name );
       AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_inquire : %s - err %d 
(caller: %s)", tabRtTask[idTsk].name, err, tskInfo.name );
       mtsleep (2); //...rt_task_sleep( 4 milliseconds );
   }

     return (err);
}


2. function for creating the task

int mtresettask( int idTsk )
{
     int err;
     RT_TASK_INFO tskInfo;

     rt_task_inquire( rt_task_self(), &tskInfo );

     memset( tabRtTask[idTsk].rtDesc, 0, sizeof( RT_TASK ) );

     err = rt_task_create( tabRtTask[idTsk].rtDesc, 
tabRtTask[idTsk].name, 
tabRtTask[idTsk].stkSize,tabRtTask[idTsk].priority,tabRtTask[idTsk].mode);
     AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_create  : %s - err %d 
(caller: %s)", tabRtTask[idTsk].name, err, tskInfo.name );
     if( err != 0 )
         return err;

     err = rt_task_start( tabRtTask[idTsk].rtDesc, (void 
(*)(void*))tabRtTask[idTsk].fnAddr, tabRtTask[idTsk].tskArgs );
     AltTraceInN(ALTRACE_LEV_OS_TASK, "rt_task_start   : %s - err %d 
(caller: %s)", tabRtTask[idTsk].name, err, tskInfo.name );


     return (err);
}

Thanks in advance

Best Regards


-- 
+------------------------------------------------------------------------------------------------+
							
Roberto Bielli
Sviluppo Software					
Axel S.r.l.					
							
Via Del Cannino, 3 				
21020 Crosio Della Valle			
Varese - Italy					
							
Telefono: +39 0332 949600			
Fax:      +39 0332 969315			
							
E-mail:   roberto.bielli@domain.hid	
Web Site: www.axelsw.it

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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-08-01 17:48 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-08-01 10:04 [Xenomai-core] rt_task_suspend, rt_task_delete chooses wrong tasks Roberto Bielli
2011-08-01 14:42 ` Gilles Chanteperdrix
2011-08-01 15:18   ` Roberto Bielli
2011-08-01 17:48     ` Gilles Chanteperdrix

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