From: Greg Turner <gmt@malth.us>
To: gentoo-portage-dev@lists.gentoo.org
Subject: Re: [gentoo-portage-dev] [PATCH] econf: update configure/config.{sub,guess} atomically to avoid races
Date: Tue, 17 Dec 2013 18:53:00 -0800 [thread overview]
Message-ID: <CA+VB3NSX83OzigHC-6E9fdGV-1fzCtHhCHa6K-L6wD68xcUjFw@mail.gmail.com> (raw)
In-Reply-To: <CAAr7Pr-9s-_6UYQY_Wx+kn_1ktCD6ZfxSbF4WWiVXwX1u0VJaQ@mail.gmail.com>
On Tue, Dec 17, 2013 at 5:58 PM, Alec Warner <antarus@gentoo.org> wrote:
> Sed is already atomic
>
> antarus@goats5 /tmp/test $ cat foo
> Debian Rocks!
> antarus@goats5 /tmp/test $ strace -e trace=file sed -i -e
> 's/Debian/Gentoo/g' foo
[snip]
> open("foo", O_RDONLY) = 3
> open("/proc/filesystems", O_RDONLY) = 4
> open("./sedfDxBxl", O_RDWR|O_CREAT|O_EXCL, 0600) = 4
> rename("./sedfDxBxl", "foo") = 0
Nice demonstration! Been wondering about that...
-gmt
next prev parent reply other threads:[~2013-12-18 2:53 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-17 23:23 [gentoo-portage-dev] [PATCH] econf: update config.{sub,guess} atomically to avoid races Mike Frysinger
2013-12-17 23:28 ` [gentoo-portage-dev] [PATCH] econf: update configure/config.{sub,guess} " Mike Frysinger
2013-12-18 0:26 ` Brian Dolbec
2013-12-18 1:08 ` Alec Warner
2013-12-18 1:41 ` Greg Turner
2013-12-18 1:58 ` Alec Warner
2013-12-18 2:53 ` Greg Turner [this message]
2013-12-18 5:16 ` Alec Warner
2013-12-21 3:07 ` [gentoo-portage-dev] " Ryan Hill
2013-12-21 9:23 ` Mike Frysinger
2013-12-21 9:49 ` [gentoo-portage-dev] [PATCH] add a __bashpid helper for <bash-4.0 versions Mike Frysinger
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