Re: [Xenomai-help] Posix skin and message queues operation mode misunderstanding

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

juanba romance wrote:
 > >
 > > Xenomai posix skin signals cause the target thread to switch to
 > >
 > secondary mode, so, it may not be a good idea to use them.
 > >                                            Gilles Chanteperdrix.
 > 
 > 
 > I understand that since the first callback instruction up to call the
 > mq_receive xenomai system call, isn't it ?

Yes, it is.

 > 
 > We were thinking to customize the real-time operative passing some
 > parameters only under a controlled application state. So at same time we
 > need to connect the real time operative to any "secondary" object, maybe
 > other approaches are preferred..
 > 
 > If the mq_receive returns to the primary domain we can assume the hole along
 > the configuration process timing.
 > 

I do not understand what you mean. But from my point of view, using
message queues notification through SIGEV_THREAD or SIGEV_SIGNAL will
never be nearly as fast as a server thread calling mq_receive in a
loop.

-- 


					    Gilles Chanteperdrix.