module Error : sig ... endmodule type Comparable = sig ... endmodule Flow : sig ... endA BSD-socket-like interface for establishing flows by connecting to a well-known address (see Client) or by listening for incoming connections on a well-known address (see Server)
module Framing : sig ... endDNS messages are framed when sent over other protocols. These modules convert byte-stream flows into streams of framed messages.
module Config : sig ... endmodule Rpc : sig ... endA Remote Procedure Call client and server implementation
module Resolver : sig ... endA Resolver converts a DNS query into an optional DNS response.
module Server : sig ... endA server listens for incoming connections containing streams of requests and attempts to answer them using the given client.