Re: cvs commit: apr-serf/docs notes-filter-chains.txt

On Wed, Aug 28, 2002 at 11:45:39AM -0000, [email protected] wrote:
> gstein      2002/08/28 04:45:39
> 
>   Added:       docs     notes-filter-chains.txt
>   Log:
>   A transcript of a conversation that Justin and I just had on IRC. This
>   still needs to be massaged down to its key points.

[originally only sent to gstein by accident, this is a resend to the
list... stupid reply-to headers... :) ]

It's going to take awhile to catch up on all this, but one quick comment:       
                                                                                
Filter interaction should not think in terms of bytes.

The app should not request any thing in terms of "bytes" it should
request a type of data. "Give me body data" or "Give me abstract things
until one of them can be identifed as a body data thingy" or something
along those lines. This rids us of the need to deal with "spillover"
or any other buffering problems at the filter level, so we only have to
think about it in terms of specifical data types.

Only once a filter has received a type of data that it knows about should
it inspect that unit, and if it happens to be a type of data that can
be thought of in terms of bytes than that's fine, but only at that
deeper level. Am I making any sense here?

-aaron