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Re: display-time, mail-icon and POP3 mailboxes

From: Kim F. Storm
Subject: Re: display-time, mail-icon and POP3 mailboxes
Date: 13 Feb 2002 23:13:48 +0100
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2.50

Richard Stallman <address@hidden> writes:

>     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).
> Would you like to write that code?

I could give it a try - but I can only test it on GNU/Linux,
so I will need to make some sensible choices about how to
conditionally support this feature.

I think I will need to test for the availability of HAVE_SELECT,
F_SETFL, O_NONBLOCK, and HAVE_GETPEERNAME (which is used to check
whether the connect actually succeeded).  

But that might not work on all systems, so I may need to add a
BROKEN_NON_BLOCKING_CONNECT define which can be set for systems where
this doesn't work (just to be defencive).

There is currently no HAVE_GETPEERNAME check in configure, but I
suppose that can be added (by someone who speaks autoconf :-)

Kim F. Storm  http://www.cua.dk

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