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

Tried eventfd with epoll?

"A key point about an eventfd file descriptor is that it can be monitored just like any other file descriptor using select(2), poll(2), or epoll(7)."