[slime-devel] Slime broken on SBCL/Darwin by recent WAIT-FOR-INPUT changes

[Helmut Eller]

* Nikodemus Siivola [2011-12-03 14:42] writes:

> Specifically, :OS-PROVIDES-POLL isn't on *FEATURES* there because
> :OS-PROVIDES-POLL really means "OS provides poll() good enough for
> SBCL's internal needs", which includes the ability to poll on things
> like stdin and /dev/null -- which Darwin's poll() doesn't do.

Darwin can't poll /dev/null?  How strange.

> I'm also a bit dismayed by the amount of SB-IMPL::FOO going on in
> DEFUN POLL. That stuff is going to break, probably sooner than later.

There is exactly one use of such a symbol: sb-impl::fd-stream-fd. 
Easy solution: replace it with sb-sys:fd-stream-fd :-)

> So SWANK could probably use Darwin's poll() just fine -- except some
> of the SBCL internals it tries to use aren't there.
>
> Not sure what's the best solution -- and what's the most expedient one.

If SBCL supports threads then we don't need WAIT-FOR-INPUT.

Helmut