From: Eric Sunshine <sunshine@sunshineco.com>
Date: Thu, 18 Feb 2021 17:03:55 GMT
Subject: Re: [PATCH] test-lib-functions.sh: update comment on generate_zero_bytes()
Message-ID: <CAPig+cRhvh2TpSZ-bzjiuCf-Vaf-wr1umb6EAFna3uQxU=oXyw@mail.gmail.com>
In-Reply-To: <20210218095750.939746-1-rv@rasmusvillemoes.dk>

[cc:+æver]

On Thu, Feb 18, 2021 at 7:22 AM Rasmus Villemoes <rv@rasmusvillemoes.dk> wrote:
> Commit d5cfd142ec (tests: teach the test-tool to generate NUL bytes
> and use it) changed the implementation of this helper, but didn't
> preserve the magic meaning of the word 'infinity' - in fact, since
> strtol() returns 0 when presented with that string, it ends up
> producing no output at all. Instead, the C implementation interprets
> lack of optional argument to mean infinity.
>
> Since the last and only user that actually passed 'infinity' vanished
> with d99194822b (Revert "t5562: replace /dev/zero with a pipe from
> generate_zero_bytes"), just update the comment to match the
> implementation, and while there, short-circuit "forever or X" to just
> X.

Makes sense, but note that generate_zero_bytes() is going away
entirely[1], and that the patch series which removes it is likely to
be merged to "master" soon[2].

[1]: https://lore.kernel.org/git/20210212132942.17325-5-avarab@gmail.com/
[2]: https://lore.kernel.org/git/xmqqr1legm5v.fsf@gitster.g/