[Libevent-users] SO_LINGER option for sockets created by evhttp

[Niels Provos]

This has been fixed in trunk and the 1.4 branch.

Thanks,
 Niels.

On Dec 14, 2007 5:42 PM, Niels Provos <provos at citi.umich.edu> wrote:
> Hi Ilya,
>
> thanks for the report.  It seems that the SO_LINGER is not necessary
> there.  I put this into the tracker:
>
>   http://sourceforge.net/tracker/index.php?func=detail&aid=1851137&group_id=50884&atid=461322
>
> You can see updates there.
>
> Thank you,
>  Niels.
>
>
> On Dec 14, 2007 3:40 AM, Ilya Martynov <ilya at martynov.org> wrote:
> > Hi,
> >
> > I wonder if anybody could elaborate what is the reason for setting
> > SO_LINGER option for sockets created by evhttp. I mean this part of code
> > inside of http.c:
> >
> > static int
> > bind_socket_ai(struct addrinfo *ai)
> > {
> >          ...
> >          linger.l_onoff = 1;
> >          linger.l_linger = 5;
> >          setsockopt(fd, SOL_SOCKET, SO_LINGER, (void *)&linger,
> > sizeof(linger));
> >          ...
> > }
> >
> > If I'm reading the documentation correctly at least for Linux this
> > makes close() on the socket to block what probably not a very good thing
> > in programs based on libevent. From
> > http://linux.about.com/od/commands/l/blcmdl7_socket.htm:
> >
> > SO_LINGER
> >      Sets or gets the SO_LINGER option. ... When enabled, a close(2) or
> > shutdown(2) will not return until all queued messages for the socket
> > have been successfully sent or the linger timeout has been reached.
> > Otherwise, the call returns immediately and the closing is done in the
> > background.
> >
> > --
> > Ilya Martynov,  ilya at iponweb.net
> > CTO IPonWEB (UK) Ltd
> > _______________________________________________
> > Libevent-users mailing list
> > Libevent-users at monkey.org
> > http://monkeymail.org/mailman/listinfo/libevent-users
> >
> >
>