From: storm@cua.dk (Kim F. Storm)
Subject: Re: display-time, mail-icon and POP3 mailboxes
Date: 12 Feb 2002 00:31:08 +0100 [thread overview]
Message-ID: <5x3d07iojn.fsf__6581.41918615929$1042212411@kfs2.cua.dk> (raw)
In-Reply-To: <200202111848.g1BIm0406891@aztec.santafe.edu>
Richard Stallman <rms@gnu.org> writes:
> > > With the pop3 sample code I posted some time ago, there is one serious
> > > problem: If emacs cannot connect to the pop3 server, it may hang (no
> > > user interaction) until the connect times out. That is not
> > > satisfactory!
> >
> > The same applies to pop3.el from Gnus.
>
> If we want to support this in general, we must implement an async
> version of open-network-stream (or add an optional arg to it to make
> it async - that arg could be a function which is called when the
> connection has been opened.
>
> Is it hanging in open-network-stream? If so,
> precisely where in open-network-stream is it waiting?
> It may be a straightforward matter to implement quitting from
> a few places where the waiting typically happens.
> That would fix this problem.
I haven't debugged this specifically with emacs, but in other
programs, it has been necessary to make connect non-blocking with
fcntl(s,F_SETFL,O_NONBLOCK) and then use the writefds of select to
know when the connect has completed (at least on GNU/Linux).
--
Kim F. Storm <storm@cua.dk> http://www.cua.dk
next prev parent reply other threads:[~2002-02-11 23:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m3ofj1fwhj.fsf@Janik.cz>
[not found] ` <200202081357.g18Dvfw05454@aztec.santafe.edu>
[not found] ` <m3bsezk837.fsf@Janik.cz>
[not found] ` <5x1yfva7m8.fsf@kfs2.cua.dk>
2002-02-10 18:39 ` Pavel Janík
2002-02-10 19:57 ` Kim F. Storm
[not found] ` <5xn0yhrtye.fsf@kfs2.cua.dk>
2002-02-11 18:48 ` Richard Stallman
2002-02-11 23:31 ` Kim F. Storm [this message]
[not found] ` <a49p7s$657$1@quimby2.netfonds.no>
2002-02-12 16:25 ` Jan Vroonhof
[not found] ` <5x3d07iojn.fsf@kfs2.cua.dk>
2002-02-12 16:32 ` Paul Jarc
[not found] ` <m3u1sm4q4f.fsf@multivac.cwru.edu>
2002-02-13 0:27 ` Kim F. Storm
[not found] ` <5x4rkmfcp8.fsf@kfs2.cua.dk>
2002-02-14 3:12 ` Richard Stallman
2002-02-14 9:41 ` Kim F. Storm
[not found] ` <5xlmdwe6ym.fsf@kfs2.cua.dk>
2002-02-15 10:36 ` Richard Stallman
2002-02-13 15:38 ` Richard Stallman
2002-02-13 22:13 ` Kim F. Storm
[not found] ` <5x3d0558tf.fsf@kfs2.cua.dk>
2002-02-15 10:37 ` Richard Stallman
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