[zeromq-dev] Test test_pair_tcp.cpp hangs at bounce()

[Manuel Segura]

I think I've resolved this issue. I'm ready to push my changes to the repo.

--Manuel

On Thu, Mar 1, 2018 at 10:08 AM, Francesco <francesco.montorsi at gmail.com>
wrote:

> Hi,
> maybe I'm wrong but I think that ZMQ monitor socket do not work on inproc
> transport...
>
> HTH,
> Francesco
>
>
>
> 2018-02-28 23:34 GMT+01:00 Manuel Segura <manuel.segura4 at gmail.com>:
>
>> I tried to add socket monitors to check the handshake, but it hangs when
>> trying to read in an event from the monitor socket in the first call to
>> zmq_msg_recv(), specifically this line:
>>
>> if (zmq_msg_recv (&msg, monitor, 0) == -1)
>>
>> It appears to be the same problem with receiving when I called
>> bounce() from testutils.hpp, only this time its with the inproc protocol.
>>
>> --Manuel
>>
>> On Wed, Feb 28, 2018 at 12:38 PM, Manuel Segura <manuel.segura4 at gmail.com
>> > wrote:
>>
>>> Hi Luca,
>>>
>>> The test_pair_ipc.cpp test fails as well in the same place. Those are
>>> the only two I've tried so far.
>>>
>>> I'll add socket monitors and let you know about the handshake.
>>>
>>> Thanks,
>>>
>>> Manuel
>>>
>>> On Wed, Feb 28, 2018 at 12:08 PM, Luca Boccassi <luca.boccassi at gmail.com
>>> > wrote:
>>>
>>>> On Wed, 2018-02-28 at 11:40 -0800, Manuel Segura wrote:
>>>> > Hello,
>>>> >
>>>> > I'm porting libzmq to VxWorks and the test_pair_tcp.cpp test hangs
>>>> > inside
>>>> > the bounce() function call, specifically the first zmq_recv() call.
>>>> > I've
>>>> > traced this to zmq_recv() => s_recvmsg() => s_->recv() =>
>>>> > process_commands()
>>>> > => mailbox->recv() => signaler.wait() => select(). It seems xrecv()
>>>> > fails
>>>> > and it goes into a blocking wait.
>>>> >
>>>> > What would be some reasons that this would hang?
>>>> >
>>>> > Thank you,
>>>> >
>>>> > Manuel
>>>>
>>>> Hi,
>>>>
>>>> Do other tests fail? Or only that one?
>>>>
>>>> You can try and add socket monitors to check that the handshake
>>>> succeeds:
>>>>
>>>> https://github.com/zeromq/libzmq/blob/master/doc/zmq_socket_monitor.txt
>>>>
>>>> Alternatively, given it's a tcp test, you can use wireshark/tshark with
>>>> the zmtp dissector to snoop on the wire:
>>>>
>>>> https://github.com/whitequark/zmtp-wireshark
>>>>
>>>> --
>>>> Kind regards,
>>>> Luca Boccassi
>>>> _______________________________________________
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>>>> zeromq-dev at lists.zeromq.org
>>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>>>
>>>>
>>>
>>
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