Hi,

At Sat, 31 Jul 2010 22:40:54 +0900,
Tanaka Akira wrote in [ruby-core:31562]:
> Some idea:
> * create and cache a subclass of Errno::EAGAIN which includes
IO::WaitReadable.
> * don't clear the method cache because IO::WaitReadable has no method.

Both sound reasonable.

-- 
Nobu Nakada