Event loop plus another event loop

[Jeff Kaufman]

On Wed, Jan 21, 2015 at 5:00 PM, Yichun Zhang (agentzh)
<agentzh at gmail.com> wrote:
> You can register the fd of the socket created by your 3rd-party
> libraries into nginx's event model and use nginx's event loop to
> dispatch read/write events on it on the library's behalf.
>

Alternatively, and this is kind of a hack, you can run your other
event loop in a different thread and connect the two up with a pipe.
You give one end of the pipe to nginx to watch and you write to the
other end when you want to run your handler in the main nginx context.