In article <42F9A50C.4010806 / path.berkeley.edu>,
  Joel VanderWerf <vjoel / path.berkeley.edu> writes:

> Is there any disadvantage to setting O_NONBLOCK for all UDP packets, as
> in [ruby-talk:148436] ? If not, I guess I'll just do that to be safe...

Some methods may behave differently.  At least IO#sysread raises
EAGAIN instead of blocking in single thread mode.  I'm not sure about
other methods.
-- 
Tanaka Akira