Danga::socket is an abstract base class for objects backed by a socket which provides the basic framework for event-driven asynchronous io, designed to be fast. danga::socket is both a base class for objects, and an event loop.

callers subclass danga::socket. danga::socket's constructor registers itself with the danga::socket event loop, and invokes callbacks on the object for readability, writability, errors, and other conditions.

because danga::socket uses the "fields" module, your subclasses must too.