R8B-0 devpoll patch
Tue Mar 5 10:57:35 CET 2002
Sorry for the long delay. I had to catch a few deadlines.
Per Bergqvist <> writes:
> > Yes, you can select(2)/poll(2) on kqueue descriptors. You can also
> > register kqueue descriptors on another kqueue just to add to the
> > orthogonality.
> A few other questions:
> 1) What is the best way to check if the fd should use poll or kqueue ?
> (in the Linux I do a fstat and test the mode)
Try to register a kevent and see if it fails? I haven't really thought about
> 2) Do you have to register EVFILT_READ and WRITE as separate event
> filters or can you simply OR them in one event ?
separate events. Anything else wouldn't allow the kqueue to live up to what
it promises (all events will be delivered if registering succeeds, resources
allocated on registration and not delivery).
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