Subject:
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Re: is it possible to remove lnp_handler while running ?
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Tue, 16 Jul 2002 17:59:25 GMT
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Viewed:
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2314 times
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no..wait.. im fairly sertain that i did have a context shift while in
lnp_addressing_write..after all .could that be why it never returns ?
Falco, i tried looking at your thread safe example in emulegos, but im
afraid i didnt understand much of it.....
ill do my best to se if i can create a thread safe lnp_addressing_write
function.. but im not sure if im up to the task :(
if anyone here knows how to do this id really appriciate the help
regards
kenneth johansen
kennethj@stud.cs.uit.no
Albert Huang wrote:
> "kenneth johansen" <kennethj@stud.cs.uit.no> wrote in message
> news:3D343FAA.17247640@stud.cs.uit.no...
> > another dumb question about lnp:)
> >
> > i was wondering if it possible to do something like
> > lnp_addressing_remove_handler(PORT,handler);
> > as opposed to lnp_addressing_set_handler(PORT,handler);
> >
> > after much debugging i think i have traced my problem to the fact that
> > lnp_addressing_write hangs if i recieve a message at the same time as i
> > try to send.
> >
> > so i kinda wondered if theres any way to remove the handler for a while
> > and then set it again.
> >
> > anyone know ?
> >
> > regards
> > kenneth johansen
> > kennethj@stud.cs.uit.no
> >
> >
>
> I imagine you could just do something like
>
> lnp_addressing_set_handler( PORT, (lnp_addressing_handler_t) NULL );
>
> I'm also curious as to why lnp_addressing_write hangs for you... I don't
> remember ever having problems with two bricks reading and writing
> concurrently.
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