[zeromq-dev] Dynamic subscriptions

James Connor James.Connor at tibra.com
Mon Jan 10 07:38:14 CET 2011


I'm sure this is a common problem but I'm unsure of the 'best' way to solve it.

I am working in C# and have a SUB socket which is listening to changing subscription topics.

I have a dedicated thread which creates and owns the subscription socket (subSocket) and contains a while(true) loop context.Poll(...) setup which is firing a handler method through a PollItem when messages are received.  However, I want to change the subscriptions at runtime (from another thread) and since this sub thread is now busy waiting, I cannot access the subSocket object to call the .Subscribe("2ndSubTopic", Encoding.Unicode) method without interrupting my context.Poll - unless I break the thread ownership.

Is there a good way to do this?

James Connor
Software Developer | Tibra Global Services
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