288     remote_endpoint: Option<Endpoint>, // 记录远程endpoint提供给connect()， 应该使用IP地址。  field
322             remote_endpoint: None,  in new()
357                 if let Ok((size, remote_endpoint)) = socket.recv_slice(buf) {  in read()
361                     return (Ok(size), Endpoint::Ip(Some(remote_endpoint)));  in read()
375         let remote_endpoint: &wire::IpEndpoint = {  in write()  localVariable
378             } else if let Some(Endpoint::Ip(Some(ref endpoint))) = self.remote_endpoint {  in write()
393             let local_ep = match remote_endpoint.addr {  in write()
411             match socket.send_slice(&buf, *remote_endpoint) {  in write()
447             self.remote_endpoint = Some(endpoint);  in connect()
493         return self.remote_endpoint.clone();  in peer_endpoint()
585                         let endpoint = if let Some(p) = socket.remote_endpoint() {  in read()
769                 let remote_ep = socket.remote_endpoint().ok_or(SystemError::ENOTCONN)?;  in accept()
824         return socket.remote_endpoint().map(|x| Endpoint::Ip(Some(x)));  in peer_endpoint()