[zeromq-dev] Detecting sending failure due to over-full queue

[Pieter Hintjens]

On Tue, Oct 5, 2010 at 4:35 PM, Iñaki Baz Castillo <ibc at aliax.net> wrote:

> - A client open a XREQ socket and connects to a server (REP/XREP).
> - It set the water mark to 5.
> - It sends 5 requests using non-block. All of them fail (so they are
> queued) in the XREQ outgoing queue.
> - When it tries to send a new request zqm_send should reply EAGAIN
> (the message couldn't be sent neither queued, am I right?).

According to the docs, yes,if 'fail' means 'could not be sent'.

> My question is: how can the client determine that the request couldn't
> be sent due to over-full queue in its XREQ socket?

Uhm, errno == EAGAIN?

-Pieter



-- 
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Pieter Hintjens
iMatix - www.imatix.com