Re: imap connections never being closed?

[Lars Magne Ingebrigtsen <larsi@gnus.org>]

Julien Danjou <julien@danjou.info> writes:

>> If the computer is put to sleep and/or moved to a different network,
>> open IMAP connections seems to be stuck.
>>
>> At least it used to be that way.
>
> I confirm (and suffer from it).

Is there any general way to determine if a connection is "stuck"?  If
we've created a network connection, and we change IP addresses, then the
connection is AWOL and will never get any response to traffic.

Hm...

If there's no way to determine the AWOL-ness of a connection (and I
guess there isn't), but we can see that the IP address has changed, then
we should close the connection and start a new one.

That might help.  But how do we determine that the IP address has
changed?

The IP address of the host itself may also not change, but the router's
address changes, in which case we won't find that out, but it's a start,
perhaps...

A TCP level solution would be nice...

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