From: Eric Wong <e@80x24.org>
To: Alyssa Ross <hi@alyssa.is>
Cc: meta@public-inbox.org
Subject: Re: [PATCH 1/2] t/lei-sigpipe.t: use correct pipe size
Date: Tue, 7 Jan 2025 22:22:36 +0000 [thread overview]
Message-ID: <20250107222236.M391840@dcvr> (raw)
In-Reply-To: <20250107174624.1504268-1-hi@alyssa.is>
Alyssa Ross <hi@alyssa.is> wrote:
> According to fcntl(2), Linux will round up pipe sizes lower than a
> page to a whole page. Additionally, the kernel may use a larger size
> in general, "if that is convenient for the implementation". The
> actual size of the pipe is returned from fcntl, so the test should use
> that return value, rather than assuming the size requested was
> accepted exactly. This fixes the test on my system with 16K pages.
Good catch, will apply. Thanks.
> --- a/t/lei-sigpipe.t
> +++ b/t/lei-sigpipe.t
> @@ -33,8 +33,8 @@ test_lei(sub {
> my $imported;
> for my $out ([], [qw(-f mboxcl2)], [qw(-f text)]) {
> pipe(my $r, my $w);
> - my $size = $F_SETPIPE_SZ && fcntl($w, $F_SETPIPE_SZ, 4096) ?
> - 4096 : 65536;
> + my $size = ($F_SETPIPE_SZ && fcntl($w, $F_SETPIPE_SZ, 4096)) ||
> + 65536;
prev parent reply other threads:[~2025-01-07 22:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-07 17:46 [PATCH 1/2] t/lei-sigpipe.t: use correct pipe size Alyssa Ross
2025-01-07 17:46 ` [PATCH 2/2] treewide: lose F_SETPIPE_SZ page size assumptions Alyssa Ross
2025-01-07 22:26 ` Eric Wong
2025-01-08 4:51 ` Eric Wong
2025-01-09 16:59 ` Alyssa Ross
2025-01-07 22:22 ` Eric Wong [this message]
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