Another thing, regarding eventing, is that you can use HTTP for that: just use chunked transfer encoding in never-ending responses. I've written a tailfhttpd t

Another thing, regarding eventing, is that you can use HTTP for that: just use chunked transfer encoding in never-ending responses. I've written a tailfhttpd that does this for tailing files a-la tail(1) -f, as you'd expect. You want to have some sort of application-level heartbeat though because HTTP/1.1 chunked transfer encoding sure doesn't have that, but otherwise you can absolutely sit there waiting for events that come along over HTTP, and this can be extremely fast (my tailfhttpd is C10K).