5 use smoltcp::socket::tcp;
173             let mut socket = socket_set.get::<tcp::Socket>(server_handle);  localVariable
174             if !socket.is_active() && !socket.is_listening() {
176                     socket.listen(1234).unwrap();
181             if socket.can_recv() {
182                 socket.close();
188             let mut socket = socket_set.get::<tcp::Socket>(client_handle);  localVariable
189             if !socket.is_open() {
191                     socket
201             if socket.can_send() {
202                 socket
205                 socket.close();