[zeromq-dev] Disconnect appears not to respect linger

Christian Kamm kamm at incasoftware.de
Sat Jul 6 21:51:01 CEST 2013


I started looking at it and filed a related bug:
https://zeromq.jira.com/browse/LIBZMQ-546

Is there documentation for the shutdown sequence? It's fairly complex
with the socket, session and two pipes on each end.

I currently guess that when a socket is disconnected the peer gets a
pipe_term command and that just uses the value of the pipe's 'delay'
member (always true) without consulting linger? And what are those
delay_on_close/delay_on_disconnect options?

Regards,
Christian

On 07/05/2013 07:45 PM, Pieter Hintjens wrote:
> I think they should respect linger, on all transports, since that's what
> you'd expect, but it may be hard to implement.
> 
> On Jul 5, 2013 5:27 PM, "Christian Kamm" <kamm at incasoftware.de
> <mailto:kamm at incasoftware.de>> wrote:
> 
>     On 07/04/2013 11:47 AM, Ben Gray wrote:
>     > It appears that disconnect, and unbind, discard all pending messages
>     > instantly unlike when closing a socket any pending data will wait for
>     > the linger setting before being discarded.
>     >
>     > Is this the expected behaviour, in which case I recommend we
>     update the
>     > documentation to mention it, or is this a bug?
> 
>     I'd like to second this question, in particular since the behavior seems
>     to be the opposite for inproc connections - there disconnect lingers
>     indefinitely regardless of the ZMQ_LINGER variable.
> 
>     The desired behavior is that disconnect and unbind respect the linger
>     setting?
> 
>     Cheers,
>     Christian
> 
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