Re: Multiplexing SUGUSR1

From: Dimitri Fontaine <dfontaine(at)hi-media(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Subject: Re: Multiplexing SUGUSR1
Date: 2008-12-09 16:24:47
Message-ID: 200812091724.50290.dfontaine@hi-media.com
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Hi,

I hope I'm not disturbing hackers at work by talking about completely
unrelated things but...

Le mardi 09 décembre 2008, Tom Lane a écrit :
> I think we need something closer to the postmaster signal multiplexing
> mechanism, wherein there is a dedicated shared memory area of static
> layout that holds the signaling flags. And it needs to be driven off
> of knowing the target's PID, not anything else.

...this makes me recall IMessage Queues from Postgres-R, reworked by Markus to
follow your advices about postmaster and shared memory.
http://archives.postgresql.org/pgsql-hackers/2008-07/msg01420.php

Could it be the implementation we need for multiplexing signals from one
backend some others?

Regards,
--
dim

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