Struct ConnectedUdpSocket 

pub struct ConnectedUdpSocket { /* private fields */ }

A UDP socket bound to a fixed remote peer — the connected-net.Conn shape Go’s Dial(ctx, "udp", …) returns (a *gonet.UDPConn with a fixed destination).

The fork’s netstack netstack::UdpSocket is unconnected (send_to/recv_from carry the peer per datagram, the net.PacketConn shape). This wrapper stores the peer so send targets it implicitly and recv filters to datagrams from that peer, dropping any from other sources — exactly what a kernel connect(2) on a UDP socket does. UDP stays message-oriented (one send/recv = one datagram), as it is for Go’s UDP net.Conn.

Implementations

impl ConnectedUdpSocket

pub fn peer(&self) -> SocketAddr

The connected peer this socket sends to / receives from.

pub fn local_addr(&self) -> SocketAddr

The local address the underlying socket is bound to.

pub async fn send(&self, data: &[u8]) -> Result<(), Error>

Send one datagram to the connected peer (Go UDP net.Conn::Write).

pub async fn recv(&self, buf: &mut [u8]) -> Result<usize, Error>

Receive one datagram from the connected peer into buf, returning the byte count (Go UDP net.Conn::Read). Datagrams from any other source are discarded (connected-UDP semantics), so this loops until a datagram from the connected peer arrives or the socket errors.