From: Andre Majorel <aym-xunil-Bi/FLWfhfolQFI55V6+gNQ@public.gmane.org>
To: Peng Haitao <penght-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
Cc: "Michael Kerrisk (man-pages)"
<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
carlos-v2tUB8YBRSi3e3T8WW9gsA@public.gmane.org,
aoliva-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] strtod.3: ATTRIBUTES: Note functions that are thread safe with exceptions
Date: Tue, 21 Jan 2014 14:52:44 +0100 [thread overview]
Message-ID: <20140121135244.GD29966@aym.net2.nerim.net> (raw)
In-Reply-To: <52DE15E2.2080607-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
On 2014-01-21 14:38 +0800, Peng Haitao wrote:
> Maybe added simultaneously is better?
>
> These functions can be safely used in multithreaded
> applications, as long as setlocale(3) is not called to change
> the locale.
>
> ->
>
> These functions can be safely used in multithreaded
> applications, as long as setlocale(3) is not simultaneously
> called to change the locale.
I find the word "simultaneous" ambiguous when it comes to events
whose duration is non-zero.
Is the problem as simple as this ?
1) A thread is interrupted while it's running strto*().
2) The other thread calls setlocale().
3) strto*() resumes with locale data which is now inconsistent
or invalid.
If that is the case, how about :
These functions can be safely used in multithreaded
applications, as long as the locale is not changed during
their execution.
or
These functions can be safely used in multithreaded
applications, as long as setlocale() is not called during
their execution.
(depending on whether calling setlocale() would invalidate the
data returned by a previous call to setlocale() with the same
argument).
--
André Majorel http://www.teaser.fr/~amajorel/
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next prev parent reply other threads:[~2014-01-21 13:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-20 8:15 [PATCH] strtod.3: ATTRIBUTES: Note functions that are thread safe with exceptions Peng Haitao
[not found] ` <1390205712-10266-1-git-send-email-penght-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2014-01-20 12:23 ` Michael Kerrisk (man-pages)
2014-01-20 12:28 ` Andre Majorel
[not found] ` <20140120122841.GC29966-956IwFboN44acnK+F/IuxqxOck334EZe@public.gmane.org>
2014-01-21 3:08 ` Peng Haitao
[not found] ` <52DDE4A6.5070405-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2014-01-21 6:19 ` Michael Kerrisk (man-pages)
[not found] ` <52DE1182.2030704-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-01-21 6:38 ` Peng Haitao
[not found] ` <52DE15E2.2080607-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2014-01-21 13:52 ` Andre Majorel [this message]
[not found] ` <20140121135244.GD29966-956IwFboN44acnK+F/IuxqxOck334EZe@public.gmane.org>
2014-01-22 2:15 ` Peng Haitao
[not found] ` <52DF29C0.7080404-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2014-01-22 8:29 ` Andre Majorel
[not found] ` <20140122082903.GE29966-956IwFboN44acnK+F/IuxqxOck334EZe@public.gmane.org>
2014-01-22 8:57 ` Peng Haitao
-- strict thread matches above, loose matches on Subject: below --
2014-01-22 10:41 Michael Kerrisk (man-pages)
[not found] ` <CAKgNAkhCPtc4edgFhmc+3m+j_8AxucNzG4TY79sSuK2Cq8kreA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-01-23 0:07 ` Peng Haitao
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