How do you use AIO and epoll together in a single event loop?

Question

How can you combine AIO and epoll together in a single event loop?

Google finds lots of talk from 2002 and 2003 about unifying them, but its unclear if anything happ

Answer 1

you can see http://www.xmailserver.org/eventfd-aio-test.c for a sample of aio and eventfd