[zeromq-dev] Poll on pair socket

Pieter Hintjens ph at imatix.com
Sat Nov 10 15:07:42 CET 2012


Poll on PAIR sockets definitely works, we use this all the time.

Can you make a minimal test case that shows the problem happening? It
could be that you've simply made an error in how you're calling
zmq_poll.

-Pieter


On Sat, Nov 10, 2012 at 9:43 PM, Doron Somech <somdoron at gmail.com> wrote:
> Hi,
>
> I'm trying to build a reactor which will also listen to the monitor socket.
> the problem is that poll on a pair socket is not working.
>
> checking the code i found out that the send_activate_read is never called on
> a pair socket (which is causing the signaling on the socket the poll is
> actually listen on).
>
> I don't want to create a thread for each socket i'm going to monitor, other
> alternative is to configure the socket with receive timeout of zero and use
> don't wait option.
>
> I'm not sure that the second solution is a good one, because I want one
> thread to listen to both regular sockets and monitor sockets,
> with that solution i have to do zmq_poll (with small timeout) and after the
> poll call the recv for all the monitoring sockets.
>
> Any suggestions?
>
> Thanks,
>
> Doron
>
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