[Xenomai-help] help with alarams

Fri, 05 May 2006 12:33:08 -0700

 

Hi,

I am new to xenomai and linux. I am having some problems with alarms. Here is a sample piece of code that I am using.

If you look at the main function, I have a while(!quit_now)  and I am setting this flag in the alarm_handler. I am seeing some weird results. When I have a printf statement in the while(!quit_now) loop as I have below, it works as expected and the program terminates when the quit_flag is set. But if I remove the printf() the program never terminates, it just hangs, even if the quit_now flag is set.

Any insight into this problem will be greatly appreciated.

 

 

alarm_handler()
{
        for(;;)
        {
           rt_alarm_wait();
           do_processing();
           if(condition met)
           {
               quit_now = TRUE;  /* global variable */
               break;
           }
        }
}
 
main()
{
        rt_alarm_create;
        rt_task_spawn();
        rt_alarm_start();
 
        while(!quit_now)
          printf("Inside while\n");
}
 


 



 



 



thanks in advance,



Shanti



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