[zeromq-dev] 0MQ 3.1 PUB/SUB Filtering

Pieter Hintjens ph at imatix.com
Tue May 29 11:11:53 CEST 2012

On Tue, May 29, 2012 at 2:29 AM, Iggy Philly <iggy.philly at hotmail.com> wrote:

> I'm new to 0MQ and I'm having a hard time finding any definitive information
> about how the publisher-side filtering works in v3.1. I've search around
> here and via google and found various threads discussing XSUB/XPUB and
> m_trie but nothing that appear official or describes how thing actual work
> in 3.1. Ideally, I'd like to be able to support publisher-side filtering
> using regular expressions or some basic pattern matching of some kind. Is
> this possible? If so, are there any examples the document this?

Libzmq does not do regular expression matching. If you want this, it's
trivial to add in subscribers using a regexp library.

In 3.1 subscriptions are sent upstream to publishers.

> On another topic: Any update on the scheulde for making 3.1 stable?

Probably this week. We're closing one or two issues. But the libzmq
git master is already pretty stable, and it's what I'd develop a new
application on today.


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