[jdev] discovery services
julian at jabber.org
Wed Mar 23 15:13:35 CST 2005
On 23 Mar 2005, at 16:00, Justin Karneges wrote:
> On Wednesday 23 March 2005 06:27 am, Julian Missig wrote:
>> On 23 Mar 2005, at 0:31, Justin Karneges wrote:
>>> 3) stanzas need to indicate both the 'to' and the 'from' (since
>>> workstation might have multiple users. yes, I think we should be
>>> thinking here).
>> Ok, this is pretty silly and makes the problem thousands of times
>> harder. DNS-SD lends itself to be used as presence broadcasting, but
>> then you /can't/ use it as presence broadcasting if there are
>> multiple users connected without making /those/ packets insanely
>> complicated too. I don't think that's a problem we should be focusing
>> on at all, because I don't see how it's going to make anything
>> simpler /or/ better.
> I don't follow. Existing client code is going to expect 'from'
> attributes on
> incoming stanzas. This means that either 1) the clients have to be
> hacked to
> not care about 'from' attributes on incoming stanzas or 2) clients
> need to
> put 'from' attributes on the stanzas they send out. #2 is not a
> times harder than #1.
> Supporting multiple users on a single machine might be a thousand
> harder, but you're not forced to do that. A single-user ad-hoc
> client should
> have no trouble interoperating.
>> I think that for now we should focus on things which DNS-SD has
>> proven useful for. Multiple users advertising the same service on one
>> computer is not one of them, and until the DNS-SD people have a good
>> solution for that (if they care about it at all), I don't think we
> Unless I've misunderstood how zeroconf works, I thought that you'd
> announce a
> single service regardless of whether or not the service was single-
> user or
> multiple-user. Yes, this probably means that for multiple-users
> you'd need
> an ad-hoc Jabber client daemon. No, I'm not saying anyone has to
> it that way.
Yes, except that the iChat way of doing this makes a *lot* of sense.
I don't know how you're expecting to to distribute presence using DNS-
SD, but with iChat, the "service" it's advertising *is* the presence.
So this is sort of by definition single-user.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 2102 bytes
Desc: not available
More information about the JDev