Re: refactoring basebackup.c (zstd workers)

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Justin Pryzby <pryzby(at)telsasoft(dot)com>, Dagfinn Ilmari Mannsåker <ilmari(at)ilmari(dot)org>, Dipesh Pandit <dipesh(dot)pandit(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Jeevan Ladhe <jeevanladhe(dot)os(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, "Shinoda, Noriyoshi (PN Japan FSIP)" <noriyoshi(dot)shinoda(at)hpe(dot)com>, Abhijit Menon-Sen <ams(at)toroid(dot)org>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, Jeevan Ladhe <jeevan(dot)ladhe(at)enterprisedb(dot)com>, Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>
Subject: Re: refactoring basebackup.c (zstd workers)
Date: 2022-03-30 20:00:39
Message-ID: CA+TgmobU2eO0dOEDNREj0ZNU113kkhv+Phixx8tJ9+2CKOJWYA@mail.gmail.com
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On Tue, Mar 29, 2022 at 8:51 AM Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Mon, Mar 28, 2022 at 8:11 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> > I suspect Robert wrote it that way intentionally --- but if so,
> > I agree it could do with more than zero commentary.
>
> Well, the point is, we stop advancing kwend when we get to the end of
> the keyword, and *vend when we get to the end of the value. If there's
> a value, the end of the keyword can't have been the end of the string,
> but the end of the value might have been. If there's no value, the end
> of the keyword could be the end of the string.
>
> Maybe if I just put that last sentence into the comment it's clear enough?

Done that way, since I thought it was better to fix the bug than wait
for more feedback on the wording. We can still adjust the wording, or
the coding, if it's not clear enough.

--
Robert Haas
EDB: http://www.enterprisedb.com

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