Re: [pgsql-hackers-win32] GUC variables invisible to contrib/

I am not really sure what the official way of accessing guc variables is
because we haven't had a lot of external apps using them in the past,
and Win32 is a newer platform for us.

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Mark Cave-Ayland wrote:
>
> > -----Original Message-----
> > From: pgsql-patches-owner@postgresql.org
> > [mailto:pgsql-patches-owner@postgresql.org] On Behalf Of Bruce Momjian
> > Sent: 17 August 2004 03:51
> > To: Mark Cave-Ayland
> > Cc: pgsql-hackers-win32@postgresql.org; PostgreSQL-patches
> > Subject: Re: [PATCHES] [pgsql-hackers-win32] GUC variables
> > invisible to contrib/ modules
> >
> >
> >
> > Yep, DLLIMPORT is the right fix.  Patch attached and applied.
> >
> > --------------------------------------------------------------
>
>
> Hi Bruce,
>
> I had actually gone for Andreas' suggestion and included the DLLIMPORT
> in an extern declaration so thanks for applying the patch. However, I'm
> still not convinced that this is the best thing to do in this case. This
> is because we either allow access to all GUC variables (in which case we
> need to locate them all and mark them as DLLIMPORT) or otherwise provide
> another mechanism to get this information.
>
> Looking at Thomas' patch
> (http://archives.postgresql.org/pgsql-patches/2004-04/msg00280.php) it
> seems that using GetConfigOption() is the only way that will work
> without knowing the underlying variable name that stores your GUC value
> (this may not necessarily be the same name as the parameter in
> postgresql.conf) and also work with new  custom GUC variables. So I
> guess I was looking more for clarification that this was the "official"
> way to access GUC information? (I see this also as being less likely to
> break in future, since if the underlying variable name changes,
> everything will still work unless the parameter changes its name)
>
>
> Many thanks,
>
> Mark.
>
> ---
>
> Mark Cave-Ayland
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