comm code hacking

Since hno has created a commloops branch, I'll commit my current
diffset to implement the modular comm code. I'll then be working
with benno on maknign the FreeBSD kqueue code work right, and
improve the poll/select performance .

Adrian

-- 
Adrian Chadd			Build a man a fire, and he's warm for the
<adrian@creative.net.au>	rest of the evening. Set a man on fire and
				he's warm for the rest of his life.