Re: [patch][commit] EOF Handling for sid-io-stdio

Frank Ch. Eigler wrote:

>Hi -
>
>  
>
>>I've committed this patch which corrects a problem with
>>sid-io-stdio.  Currently, when there is no data available to be
>>read, the gloss component cannot distinguish this from EOF. [...]
>>    
>>
>
>Interesting, I vaguely recall intending that code to encode EOF the
>same way C stdio does (value 0..255: valid data, value -1: eof).  The
>data pin is wide enough to do so unambiguously.
>
>  
>
I see what you're saying, but I still think that an eof pin is a better 
interface.

1) No overhead on the receiving end examining each value driven on the 
data pin to see if it's the magic '-1' character
2) Driving the eof pin could easily trigger additional events, if needed.

Dave