On Fri, Oct 16, 2015 at 5:08 PM, Robert Haas <robertmhaas@gmail.com> wrote:
> The shm_mq code handles blocking mode and non-blocking mode
> asymmetrically in a couple of places, with the unfortunate result that
> if you are using non-blocking mode, and your counterparty dies before
> attaching the queue, operations on the queue continue to return
> SHM_MQ_WOULD_BLOCK instead of, as they should, returning
> SHM_MQ_DETACHED. The attached patch fixes the problem. Thanks to my
> colleague Rushabh Lathia for helping track this down.
>
> (There's are some further bugs in this area outside the shm_mq code
> ... but I'm still trying to figure out exactly what they are and what
> we should do about them. This much, however, seems clear-cut.)
...and so I've committed it and back-patched to 9.4.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
