[amix]

Slightly off-topic: Varnish has some really beautiful C code. It's so good you can get the source code in book form. Check out: http://ing.dk/modules/xphoto/cache/40/31740_460_400.jpg http://phk.freebsd.dk/misc/_book2.pdf ;)

[jacquesm]

It's a textbook example of how to code up a unix daemon that does a spectacular amount of work.