Trait Transport 

pub trait Transport:
    AsyncRead
    + AsyncWrite
    + Debug
    + Unpin
    + Send
    + Sync {
    // Required methods
    fn peer_addr(&self) -> Result<SocketAddr, Error>;
    fn local_addr(&self) -> Result<SocketAddr, Error>;
}

A bidirectional byte pipe that a request/response cycle can run over.

The transport is the only part of the server that knows what is carrying the bytes. Everything above this trait is protocol agnostic: a plain TCP socket, a TLS session and a per-request duplex stream are the same thing to the parsing pipeline once they are type erased behind Transport.

Implementations report their own socket metadata, so a transport without a socket identity (a duplex pair, an in-memory pipe) answers with an error instead of pretending to have an address.

Required Methods

fn peer_addr(&self) -> Result<SocketAddr, Error>

Reports the address of the remote end of the transport.

Returns

• Result<SocketAddr, io::Error> - The remote address, or an error when the transport has no socket identity.

fn local_addr(&self) -> Result<SocketAddr, Error>

Reports the address of the local end of the transport.

Returns

• Result<SocketAddr, io::Error> - The local address, or an error when the transport has no socket identity.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Transport for TcpStream

Implementation of Transport trait for the plain TCP socket.

The socket is the reference transport: it already carries a socket identity, so its addresses are reported directly.