From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Kerrisk (man-pages)" Subject: Re: [PATCH] login.3: ATTRIBUTES: Note functions that aren't thread-safe Date: Sat, 18 Apr 2015 20:37:25 +0200 Message-ID: <5532A465.9090908@gmail.com> References: <1429160978-15236-1-git-send-email-zenglg.jy@cn.fujitsu.com> <1429160978-15236-2-git-send-email-zenglg.jy@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1429160978-15236-2-git-send-email-zenglg.jy-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Zeng Linggang Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org On 04/16/2015 07:09 AM, Zeng Linggang wrote: > The markings match glibc markings. Thanks, Zeng. Applied. Cheers, Michael > login: MT-Unsafe race:utent sig:ALRM timer > logout: MT-Unsafe race:utent sig:ALRM timer > > Signed-off-by: Zeng Linggang > --- > man3/login.3 | 35 +++++++++++++++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > > diff --git a/man3/login.3 b/man3/login.3 > index fe03b5a..98d3b91 100644 > --- a/man3/login.3 > +++ b/man3/login.3 > @@ -109,6 +109,41 @@ user accounting log file, configured through > .B _PATH_WTMP > in > .I > +.SH ATTRIBUTES > +For an explanation of the terms used in this section, see > +.BR attributes (7). > +.TS > +allbox; > +lb lb lbw20 > +l l l. > +Interface Attribute Value > +T{ > +.BR login (), > +.br > +.BR logout () > +T} Thread safety T{ > +MT-Unsafe race:utent > +.br > +sig:ALRM timer > +T} > +.TE > + > +In the above table, > +.I utent > +in > +.I race:utent > +signifies that if any of the functions > +.BR setutent (3), > +.BR getutent (3), > +or > +.BR endutent (3) > +are used in parallel in different threads of a program, > +then data races could occur. > +.BR login (3) > +and > +.BR logout (3) > +calls those functions, > +so we use race:utent to remind users. > .SH CONFORMING TO > Not in POSIX.1-2001. > Present on the BSDs. > -- 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