[zeromq-dev] zmq_term

[Matt Weinstein]

Folks,

I've finally been tasked with moving to ØMQ 2.1.X from 2.0.X.

My biggest problem is the new context semantics.  

I have always used zmq_term to terminate a context.  If I had wanted to wait, I would have built a list of sockets.  

lingering on a close is fine, I can control whether that occurs or not.  However, I consider zmq_term waiting for sockets to be closed "mal-lingering".

In order to fix the problem, you're required to keep a duplicate list of sockets for each context.

Meanwhile, I saw the czmq recommendation.  I'm presuming it's a façade which adds said bookkeeping layer.  This adds complexity in multiple ways, and misses the mark IMHO.  I'd be happy to discuss.

To fix the zmq_term problem, I would propose either:

	add zmq_setctxopt() / zmq_getctxopt() with an option to select termination behavior; or
	create an info call (zmq_getctxinfo()) to obtain socket lists from contexts.

Comments etc. are welcome.

Thanks,

Best,

Matt


On Sep 17, 2011, at 1:53 AM, Andrew Hume wrote:

> fair enough.
> (although i already have my own equivalent more or less.)
> 
> in any case, problem solved through the sophisticated technique
> of adding printfs to zmq.cpp for zmq_socket and zmq_close.
> 
> 	andrew
> 
> On Sep 16, 2011, at 10:42 PM, Pieter Hintjens wrote:
> 
>> I'd suggest using czmq and its automatic socket shutdown ...
>> 
>> -Pieter
>> 
>> On Sep 16, 2011 11:47 PM, "Andrew Hume" <andrew at research.att.com> wrote:
>> > god help me, this is frustrating!
>> > is there any way for wretched zmq_term to tell what wretched socket it is waiting on?
>> > 
>> > ------------------
>> > Andrew Hume (best -> Telework) +1 623-551-2845
>> > andrew at research.att.com (Work) +1 973-236-2014
>> > AT&T Labs - Research; member of USENIX and LOPSA
>> > 
>> > 
>> > 
>> > 
>> _______________________________________________
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> 
> 
> ------------------
> Andrew Hume  (best -> Telework) +1 623-551-2845
> andrew at research.att.com  (Work) +1 973-236-2014
> AT&T Labs - Research; member of USENIX and LOPSA
> 
> 
> 
> 
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