[PATCH] Factor out pg_malloc and friends into port code

2013-01-02 10:12 keltezéssel, Magnus Hagander írta:
> On Wed, Jan 2, 2013 at 9:59 AM, Boszormenyi Zoltan <zb(at)cybertec(dot)at
> <mailto:zb(at)cybertec(dot)at>> wrote:
>
> 2013-01-02 01:24 keltezéssel, Tom Lane írta:
>
> Boszormenyi Zoltan <zb(at)cybertec(dot)at <mailto:zb(at)cybertec(dot)at>> writes:
>
> 2013-01-01 17:18 keltezéssel, Magnus Hagander írta:
>
> That way we can get around the whole need for changing memory allocation
> across all the
> frontends, no? Like the attached.
>
> Sure it's simpler but then the consistent look of the code is lost.
> What about the other patch to unify pg_malloc and friends?
> Basically all client code boils down to
> fprintf(stderr, ...)
> in different disguise in their error reporting, so that patch can
> also be simplified but it seems that the atexit() - either explicitly
> or hidden behind InitPostgresFrontend() - cannot be avoided.
>
> Meh. I find it seriously wrongheaded that something as minor as an
> escape_quotes() function should get to dictate both malloc wrappers
> and error recovery handling throughout every program that might use it.
>
>
> Actually, the unification of pg_malloc and friends wasn't dictated
> by this little code, it was just that pg_basebackup doesn't provide
> a pg_malloc implementation (only pg_malloc0) that is used by
> initdb's escape_quotes() function. Then I noticed how wide these
> almost identical functions have spread into client apps already.
>
> I would say this unification patch is completely orthogonal to
> the patch in $SUBJECT. I will post it in a different thread if it's
> wanted at all. The extra atexit() handler is not needed if a simple
> fprintf(stderr, ...) error reporting is enough in all clients.
> As far as I saw, all clients do exactly this but some of them hide
> this behind #define's.
>
>
> Please do keep that one separate - let's avoid unnecessary feature-creep, whether it's
> good or bad features.

The patch is attached. There is no extra atexit() code in this one.

I did this over my pg_basebackup patch, there are two chunks
that gets rejected if applied without it: one in initdb.c, the other is
in src/port/Makefile. It's because the modified codes are too close
to each other.

Best regards,
Zoltán Böszörményi

--
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Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
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