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Re: SIGALRM in autovacuum.c

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SIGALRM in autovacuum.c
Date: 2006-01-02 03:34:06
Message-ID: 200601020334.k023Y6d04855@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Bruce Momjian wrote:
> Is this correct in autovacuum.c?
> 
> 	    pqsignal(SIGALRM, handle_sig_alarm);
> 
> Should it be SIG_IGN?  I don't see autovacuum using a timer or a reason
> it is calling the backend's timer routine.

FYI, the comment above this says:

     * Set up signal handlers.  We operate on databases much like a regular
     * backend, so we use the same signal handling.  See equivalent code in
     * tcop/postgres.c.

but can you have autovacuum running as a regular backend?  I didn't
think so.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

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