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Re: lock listing

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Neil Conway <nconway(at)klamath(dot)dyndns(dot)org>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>,PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: lock listing
Date: 2002-07-20 00:59:50
Message-ID: 200207200059.g6K0xox27784@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-patches
Neil Conway wrote:
> On Fri, Jul 19, 2002 at 08:07:52PM -0400, Bruce Momjian wrote:
> > Neil Conway wrote:
> > > On Fri, Jul 19, 2002 at 01:21:10PM -0400, Tom Lane wrote:
> > > > Why does this patch arbitrarily remove the #ifdefs and documentation
> > > > for USER_LOCKS?  That seems quite unrelated to the stated purpose.
> > > 
> > > I probably should have mentioned that -- it looked like dead code,
> > > and the behavior that it referred to (a loadable module called
> > > user-locks.c, which doesn't make sense to begin with) doesn't
> > > appear to exist anymore.
> > 
> > Is it contrib/userlock/?
> 
> Ah, thanks for pointing that out (I guess I was searching within src/).
> 
> I suppose it can stay, although I'm not sure that it's very useful.
> 
> Legal Question: the #ifdef USER_LOCKS code is only useful in conjunction
> with the contrib/userlock module, which is GPL'd. Would that mean that
> part of the backend "depends" upon GPL'd software in order to operate?
> 
> I have no idea what the answer is, just curious...

Even with userlocks enabled, I don't think you have to use them to use
PostgreSQL, so you should be OK.  Of course, as soon as you load the
userlocks module, you have GPL'ed yourself.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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