[zeromq-dev] Publisher side filtering

[chris]

Martin Sustrik <sustrik <at> 250bpm.com> writes:
> In other words, with standard model, if message that nobody wants is 
> sent, it goes to the broker, where it is dropped. With 0mq subscription 
> forwarding the message is dropped immediately on the publisher and 
> doesn't cross the network at all.

Will subscription forwarding be optional?  Or controllable to a certain point 
within the chain?  eg. a socket option that says don't forward subscriptions. 
Or perhaps better yet, a socket option that says do forward subscriptions (as 
that way uni-directional transports still work by default, as I'm assuming they 
no longer will otherwise?).

Back to the point, sometimes publishers are fairly poor folk, simply sending to 
a central broker who is much more capable at handling many connections and doing 
filtering.

That said, I've been waiting for this. Thanks :)

chris