net.server_epoll: Split, attempt to clarify dirty noise message Only relevant because a "dirty" connection (with incoming data in LuaSocket's buffer) does not count as "readable" according to epoll, so special care needs to be taken to keep on processing it.

-- Only the operators needed by net.websocket.frames are provided at this point
return {
	band   = function (a, b) return a & b end;
	bor    = function (a, b) return a | b end;
	bxor   = function (a, b) return a ~ b end;
};