kgio provides non-blocking I/O methods for Ruby without raising
exceptions on EAGAIN and EINPROGRESS. It is intended for use with the
Unicorn and Rainbows! Rack servers, but may be used by other
applications.

* http://unicorn.bogomips.org/kgio/
* mongrel-unicorn@rubyforge.org />* git://git.bogomips.org/kgio.git

Changes:

The C extension is now split into several files for
ease-of-maintenance.

Slightly more common, client-triggerable exceptions (EOFError,
Errno::EPIPE, Errno::ECONNRESET) are now less expensive as they
are generated without backtraces.