From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Kerrisk (man-pages)" Subject: Re: [PATCH] strtod.3: ATTRIBUTES: Note functions that are thread safe with exceptions Date: Tue, 21 Jan 2014 07:19:46 +0100 Message-ID: <52DE1182.2030704@gmail.com> References: <1390205712-10266-1-git-send-email-penght@cn.fujitsu.com> <20140120122841.GC29966@aym.net2.nerim.net> <52DDE4A6.5070405@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <52DDE4A6.5070405-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Peng Haitao , Andre Majorel Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, carlos-v2tUB8YBRSi3e3T8WW9gsA@public.gmane.org, aoliva-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org On 01/21/2014 04:08 AM, Peng Haitao wrote: > > On 01/20/2014 08:28 PM, Andre Majorel wrote: >>> +.BR strtold () >>> +functions are thread-safe with exceptions. >>> +These functions can be safely used in multithreaded applications, >>> +as long as >>> +.BR setlocale (3) >>> +is not called to change the locale. >> > > The sentence is from the Oracle Solaris's manpages. > >> Is the requirement that all threads be in the same locale ? Or >> that the thread that calls strtod() not use setlocale() at all ? >> Or maybe that setlocale() not be called by anyone after threads >> are created ? Or even that setlocale() not be used AT ALL by the >> process ? >> >> It's not obvious to me which it is ! >> >> I think that a more specific wording would be useful. >> > > In a locale other than the standard "C" or "POSIX" locales, these function may > recognize additional locale-dependent syntax. > When these functions and setlocale() are simultaneously called in multithreaded applications, > these functions will not be thread safe. Hello Haitao, So, do you think maybe a more precise wording would be better in the man page? Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html