[Freeciv-Dev] Re: CMA passes back control without reason (PR#1505)

[Raimar Falke <rf13@xxxxxxxxxxxxxxxxx>]

On Sun, Jun 02, 2002 at 02:16:20PM -0400, Jason Short wrote:
> Raimar Falke wrote:
> > On Mon, May 27, 2002 at 12:47:52AM +0200, Raimar Falke wrote:
> 
> >>Yes attributes (which are used by the CMA to store things) currently
> >>get only submit at turn done. It is possible also to submit them at
> >>every change but this wasn't necessary yet.
> > 
> > 
> > Comments? Sending attributes more often will cause more bandwidth
> > usage but will also prevent loss of data if the client
> > aborts/disconnects/crashs.
> 
> Sending attributes only when they change will not necessarily use more 
> bandwidth than sending them every turn.

This is on the long term TODO list.

> Particularly, if we could send a short attribute "update" packet when 
> something changes, this would (almost by definition) be the least 
> bandwidth required, and would also keep the server up-to-date.  I don't 
> know if this is feasible, though.

Since the server doesn't know anything about the internal structure of
the attribute block (it is the serialized hash) such update have to be
in the form "replace data at offset 12 with these 34 bytes".

        Raimar

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