[zeromq-dev] socket passing and thread safety.. a precise exlanation

Apostolis Xekoukoulotakis xekoukou at gmail.com
Sat Oct 20 18:55:13 CEST 2012


The new documentation is very good.

2012/10/20 Pieter Hintjens <ph at imatix.com>

> On Fri, Oct 19, 2012 at 10:08 PM, Apostolis Xekoukoulotakis
> <xekoukou at gmail.com> wrote:
> > So I'd have to create a new context inside such a
> > triggered event. I think I could do it. Passing the sockets,for now,
> might
> > be enough.
>
> I'd suggest creating a new context in each thread.
>
> > I think I get confused because it introduces 3 concepts, the agent, the
> zctx
> > object and the pipe that is used to communicate between them.
>
> Yes, on re-reading that page it's very unclear. I've rewritten it. See
>
> https://github.com/hintjens/czmq/commit/6788c3222974731de664cc447c2b0d7d0411d6c8
>
> > Also what does this mean? Monitoring the pipe means that I expect that a
> msg
> > will arrive. When It doesnt arrive, I will have to exit.
> > Does this also mean that I have to generate that msg? (heartbeat)
>
> It's actually just standard practice on reading _any_ 0MQ socket, if
> you get back a null message it means the process has been interrupted
> and you have to exit whatever loop you're in.
>
> -Pieter
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>



-- 


Sincerely yours,

     Apostolis Xekoukoulotakis
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