Re: [PATCH] lock_timeout and common SIGALRM framework

Excerpts from Boszormenyi Zoltan's message of mié jul 04 06:32:46 -0400 2012:
> 2012-07-04 12:09 keltezéssel, Boszormenyi Zoltan írta:

> > You just broke initdb with this cleanup. :-)

Ouch.

> > initdb starts postgres --single, that doesn't do BackendInitialize(),
> > only PostgresMain(). So, you need InitializeTimeouts() before
> > the RegisterTimeout() calls in PostgresMain and the elog(PANIC)
> > must not be in InitializeTimeouts() if called twice.
>
> Attached is the fix for this problem. PostgresMain() has a new
> argument: bool single_user. This way, InitializeTimeouts() can
> keep its elog(PANIC) if called twice and "postgres --single"
> doesn't fail its Assert() in RegisterTimeout().

Hmm.  Maybe it's better to leave InitializeTimeouts to be called twice
after all.  The fix seems a lot uglier than the disease it's curing.

--
Álvaro Herrera <alvherre@commandprompt.com>
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