[Sbcl-devel] [patch] Added SERVE-EVENT invalid file descriptor condition

[Tony M. <to...@te...>]

An invalid FD error during a SERVE-EVENT call is signalled in
HANDLER-DESCRIPTORS-ERROR using a SIMPLE-ERROR, which means the
handler can't cleanly access the list of problem FDs.

I'm trying to add a handler binding so that if one of the problem FDs
is a "server FD", the user is notified, but if it's a "client FD",
then I just clear up the client resources, log the error, and move on.
Attached is a patch which defines an error subclass to SERVE-EVENT; it
has a slot for a list of problem FDs which can be accessed by the user
to find the culprits before invoking a restart.

Comments welcome,

                        --Tony