From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: thread local storage
Date: Mon, 16 Jul 2012 18:18:53 -0400 [thread overview]
Message-ID: <20120716221853.GP544@brightrain.aerifal.cx> (raw)
In-Reply-To: <500487D9.4060404@barfooze.de>
On Mon, Jul 16, 2012 at 11:30:01PM +0200, John Spencer wrote:
> On 07/16/2012 10:09 PM, Rich Felker wrote:
> >
> >This is broken and non-thread-safe. Not a good idea. Instead try:
>
> thanks, very interesting.
>
> do you mind if i forward this to the luajit ml ?
> looks as if this might fix the problem on OSX/OpenBSD as well.
Please do. This is the correct, portable fix. Using __thread or
_Thread_local might be prefered to avoid the init/cleanup need when
possible, but the POSIX fallback should be used rather than falling
back to code that will horribly crash or even yield privilege
elevation under multi-threaded use.
Rich
next prev parent reply other threads:[~2012-07-16 22:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-16 19:02 John Spencer
2012-07-16 18:57 ` Gregor Richards
2012-07-16 20:09 ` Rich Felker
2012-07-16 21:30 ` John Spencer
2012-07-16 22:18 ` Rich Felker [this message]
2012-07-16 19:58 ` Justin Cormack
2012-07-16 20:03 ` Rich Felker
2012-07-16 22:06 ` John Spencer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120716221853.GP544@brightrain.aerifal.cx \
--to=dalias@aerifal.cx \
--cc=musl@lists.openwall.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).