libev - http://software.schmorp.de/pkg/libev.html http://software.schmorp.de/pkg/libev.html -is an existing library that provides async networking IO, over a nu

libev - http://software.schmorp.de/pkg/libev.html http://software.schmorp.de/pkg/libev.html -is an existing library that provides async networking IO, over a number of backends including (I think) kqueue, epoll and in the worst case, select.