[zeromq-dev] Calling connect more than once on the same endpoint

[Trevor Bernard]

Good ol' pedantry.

I'll take a stab at submitting a pull request.

-Trev

On Fri, Dec 13, 2013 at 3:14 PM, Pieter Hintjens <ph at imatix.com> wrote:
> I'll pedantically ask that we record problems rather than features.
>
> Problem: SUB accepts multiple connects to same PUB endpoint and result
> is nonsensical
> Solution: SUB socket should not allow multiple connects to same PUB endpoint.
>
> An issue will just rot, so you may want to find a way to send a patch
> to fix this problem.
>
>
> On Thu, Dec 12, 2013 at 8:09 PM, Trevor Bernard
> <trevor.bernard at gmail.com> wrote:
>> Should I submit an issue for this feature? I would find it extremely useful.
>>
>> -Trev
>>
>> On Wed, Oct 16, 2013 at 11:39 AM, Pieter Hintjens <ph at imatix.com> wrote:
>>> Having said that, it is undocumented behavior, and there is no valid
>>> use for this in pub-sub (nor in dealer-router, nor in req-rep) and we
>>> might want to change the behavior. We do know what endpoints are
>>> already used, and could reject duplicate connects to the same
>>> endpoint.
>>>
>>> On Wed, Oct 16, 2013 at 4:26 PM, Pieter Hintjens <ph at imatix.com> wrote:
>>>> Yes, this is expected behavior. Each connect is independent. In
>>>> pub-sub this produces nonsense results but in other patterns it can be
>>>> used to do things like prioritize one node over others (e.g. a PULL
>>>> that connects twice to a PUSH).
>>>>
>>>> On Wed, Oct 16, 2013 at 4:17 PM, Trevor Bernard
>>>> <trevor.bernard at gmail.com> wrote:
>>>>> I have a PUB/SUB topology and I accidently called connect twice to the
>>>>> same PUB endpoint and received duplicate messages. This holds true for
>>>>> N connects as well. Is this the correct behaviour?
>>>>>
>>>>> Simple test that recreates it:
>>>>>
>>>>>     https://github.com/trevorbernard/double-trouble/blob/master/src/double_trouble/core.clj
>>>>>
>>>>> -Trev
>>>>> _______________________________________________
>>>>> zeromq-dev mailing list
>>>>> zeromq-dev at lists.zeromq.org
>>>>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>>>
>>>>
>>>>
>>>> --
>>>> -
>>>> Pieter Hintjens
>>>> CEO of iMatix.com
>>>> Founder of ZeroMQ community
>>>> blog: http://hintjens.com
>>>
>>>
>>>
>>> --
>>> -
>>> Pieter Hintjens
>>> CEO of iMatix.com
>>> Founder of ZeroMQ community
>>> blog: http://hintjens.com
>>> _______________________________________________
>>> zeromq-dev mailing list
>>> zeromq-dev at lists.zeromq.org
>>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
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