Re: exposing pg_controldata and pg_config as functions

On 01/20/2016 08:08 PM, Michael Paquier wrote:
> On Wed, Jan 20, 2016 at 2:32 AM, Joe Conway <mail@joeconway.com> wrote:
>> The only things I know of still lacking is:
>> 1) Documentation

Done and included in the attached.

>> 2) Decision on REVOKE ... FROM PUBLIC
>
> Yep, regarding 2) I am the only one actually making noise to protect
> this information by default, against at least 2 committers :)

I plan to commit this way -- if the decision is made to remove the two
REVOKEs it can always be done later, but I see no problem with it.

> +typedef struct configdata
> +{
> +       char       *name;
> +       char       *setting;
> +} configdata;
> For a better analogy to ControlFileData, this could be renamed ConfigData?

Well I was already using ConfigData as the variable name, but after some
review it seems better your way, so I made the struct ConfigData and the
variable configdata.

> The point of the move to src/common is to remove the duplication in
> src/bin/pg_config/Makefile.

check

> All the files in src/common should begin their include declarations with that:
> #ifndef FRONTEND
> #include "postgres.h"
> #else
> #include "postgres_fe.h"
> #endif

check

> +configdata *
> +get_configdata(char *my_exec_path, size_t *configdata_len)
> +{
> It may be good to mention that the result is palloc'd and that caller
> may need to free it if necessary. It does not matter in the two code
> paths of this patch, but it may matter for other users calling that.

check

I believe this takes care of all open issues with this, so I plan to
commit it as attached in a day or two. Thanks for your reviews and comments!

Joe

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