Re: Reducing pg_ctl's reaction time

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Reducing pg_ctl's reaction time
Date: 2017-06-28 20:02:03
Message-ID: 18012.1498680123@sss.pgh.pa.us
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Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> Tom Lane wrote:
>> So when I removed the miscadmin.h include, I found out that pg_ctl is
>> also relying on PG_BACKEND_VERSIONSTR from that file.
>>
>> There are at least three things we could do here:
>>
>> 1. Give this up as not worth this much trouble.
>>
>> 2. Move PG_BACKEND_VERSIONSTR into pg_config.h to go along with the
>> other version-related macros.

> pg_config.h sounds like a decent enough solution. It's a bit strange
> this hasn't come up before, given that that symbol is used more in
> frontend environ than backend.

Right at the moment, what I've done is to stick it into port.h beside
the declaration of find_other_exec, since the existing uses are all
as parameters of find_other_exec[_or_die]. But maybe that's a bit too
expedient.

regards, tom lane

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