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From: Andres Freund <andres@anarazel.de>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: Petr Jelinek <petr@2ndquadrant.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: John Gorman <johngorman2@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: PATCH: two slab-like memory allocators
Date: Sun, 27 Nov 2016 12:47:40 -0800
Message-ID: <20161127204740.dr3swudwsbafjuof@alap3.anarazel.de> (raw)
In-Reply-To: <efd47210-cf95-d7ee-e984-a873f76596a8@2ndquadrant.com>
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	<CA+Tgmob7u4thiBbdvyseQk1aVApJeG10C_rFFt8LPV03-UzD7g@mail.gmail.com>
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	<9818b54a-fcb6-f018-0b16-96d6a1d1da27@2ndquadrant.com>
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	<20161112191257.3a4n6kzegvu637qn@alap3.anarazel.de>
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Hi,

> > +typedef struct SlabBlockData *SlabBlock;		/* forward reference */
> > +typedef struct SlabChunkData *SlabChunk;
> >
> > Can we please not continue hiding pointers behind typedefs? It's a bad
> > pattern, and that it's fairly widely used isn't a good excuse to
> > introduce further usages of it.
> >
>
> Why is it a bad pattern?

It hides what is passed by reference, and what by value, and it makes it
a guessing game whether you need -> or . since you don't know whether
it's a pointer or the actual object. All to save a * in parameter and
variable declaration?...

Andres


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  Subject: Re: PATCH: two slab-like memory allocators
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