[Tinyos-devel] Resource arbitration bug in SerialP

[Eric Decker]

I'm willing to do most of the work as I'm pretty much at a point where I
needthat functionality (arbritrated resource).  But would definitely like it
if there were
someone to help me.  The help I need is someone to bounce ideas off of, and
someone to review the code.

eric

On Mon, Sep 8, 2008 at 9:09 AM, Philip Levis <pal at cs.stanford.edu> wrote:

>
> On Sep 8, 2008, at 7:57 AM, Kevin Klues wrote:
>
> > After glancing briefly at the code, it looks to me like there are more
> > things wrong here than the simple fix you propose.  Until now, no one
> > has really arbitrated access to the serial stack i.e. it has been a
> > dedicated resource on most platforms.  Because of this, it seems like
> > it doesn't follow the proper semantics for SplitControl.start() and
> > SplitControl.stop() as outlined in TEP115.  A proper fix would be to
> > get it in line with these specifications so that putting a resource
> > arbiter around it can work properly.
>
> This is true: the serial stack implementation predates Resource as
> well as 115, I believe, and was never intended to operate with an
> arbiter. We should definitely put it in line with 115.
>
> Phil
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-- 
Eric B. Decker
Senior (over 50 :-) Researcher
Autonomous Systems Lab
Jack Baskin School of Engineering
UCSC
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