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Date: Fri, 08 Feb 2008 09:41:51 +0000
From: "Bruce M. Simpson" <bms@FreeBSD.org>
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To: Paul <myj@nyct.net>
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Cc: freebsd-stable@freebsd.org
Subject: Re: kevent on UDP sockets
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Paul wrote:
>
> I'm having trouble with kevent() in connection with UDP sockets 
> (6.2-STABLE).
>
> Registering an event seems to work, but when UDP packet arrives on the 
> socket, kevent returns  with 0.
>
> Is there currently a working support for UDP sockets in kqueue/kevent, 
> or does it only apply to TCP sockets ? 

I can't recall specifics but I had a working routing daemon skeleton 
using UDP with kqueue around 5 years ago.

I didn't use oneshot, and treated it much like select() i.e. the input 
event is level triggered, every time you call you should get the event. 
This is unlike WSAEventSelect() in Windows which is edge triggered.

later
BMS