[zeromq-dev] zmq_msg_get('User-Id') on XPUB subscribe/unsubscribe messages raises Invalid argument exception (pyzmq)

[Tomas Krajca]

Hi Pieter,

The code should be here http://pastebin.com/9q131Ebx

Regards,
Tomas

On 10/31/2014 04:10 PM, Tomas Krajca wrote:
> Hi Pieter,
>
> I managed to quickly modify the test_metadata.cpp test in libzmq master
> to demonstrate the issue (at least I believe it demonstrates it but I am
> not very experienced with C/C++).
>
> The code is here http://pastebin.com/9q131Ebx, it's basically
> https://github.com/zeromq/libzmq/blob/master/tests/test_metadata.cpp
> with DEALER-DEALER modified to SUB-XPUB and a few other minor
> modifications. I get segmentation fault on line 103 when running the test.
>
> The original libzmq test without any modifications passes.
>
> Thanks,
> Tomas
>
> On 10/31/2014 10:31 AM, Tomas Krajca wrote:
>> Thanks Pieter, I'll try to put a C test case together some time next
>> week (I haven't written any C in years :). This is not hugely urgent,
>> unfortunately there are many other deadlines at work at the moment.
>>
>> Cheers,
>> Tomas
>>
>> On 10/28/2014 10:00 PM, zeromq-dev-request at lists.zeromq.org wrote:
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>>> Today's Topics:
>>>
>>>     1. Re: Failed to unbind socket (which was bind with wild-card *)
>>>        with real endpoint (Patryk)
>>>     2. zmq_msg_get('User-Id') on XPUB subscribe/unsubscribe messages
>>>        raises Invalid argument exception (pyzmq) (Tomas Krajca)
>>>     3. Re: zmq_msg_get('User-Id') on XPUB subscribe/unsubscribe
>>>        messages raises Invalid argument exception (pyzmq) (Pieter
>>> Hintjens)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Mon, 27 Oct 2014 14:31:22 +0100
>>> From: Patryk <lysy.loren at gmail.com>
>>> Subject: Re: [zeromq-dev] Failed to unbind socket (which was bind with
>>>     wild-card *) with real endpoint
>>> To: ZeroMQ development list <zeromq-dev at lists.zeromq.org>
>>> Message-ID:
>>>     <CAK73Anj4G6JxmU+q0hUsx2tT0jo+kMVY=EDhHyUppmwc+Yxu7w at mail.gmail.com>
>>> Content-Type: text/plain; charset="utf-8"
>>>
>>> On Mon, Oct 27, 2014 at 9:43 AM, Pieter Hintjens <ph at imatix.com> wrote:
>>>
>>>> It's a fair point. Would you like to look into the code and propose a
>>>> patch?
>>>>
>>>>
>>> I've made pull request #1229 on github.
>>> If this changess will be accepted, please note, that it introduces
>>> backward
>>> incompatible changes with previous versions. Unbinding with wild-card
>>> address
>>> will be no more possible. So it should be pointed out clearly in relese
>>> notes
>>> and/or other documentation.
>>> Nevertheless i think is a good step in 0MQ API clearance.
>>>