types.rs

// Most rotor_stream::Protocol actions:
enum Expectation { Bytes(usize), Delimiter(&str) }
Option<(Machine, Expectation, Deadline)>
// rotor_http::Server actions:
enum Mode { Buffered, Progressive }
fn headers_received(..) -> Option<(Machine, Mode, Deadline)>;
fn request_received(..) -> Option<Machine>;
fn request_chunk(..) -> Option<Machine>;
fn timeout(..) -> Option<(Machine, Deadline)>;