import io import net // This file shows how a basic TCP echo server can be implemented using // the net module. You can connect to the server by using netcat or telnet, // in separate shells, for example: // nc 127.0.0.1 12345 // or // telnet 127.0.0.1 12345 fn main() { mut server := net.listen_tcp(.ip6, ':12345')? laddr := server.addr()? eprintln('Listen on $laddr ...') for { mut socket := server.accept()? go handle_client(mut socket) } } fn handle_client(mut socket net.TcpConn) { defer { socket.close() or { panic(err) } } client_addr := socket.peer_addr() or { return } eprintln('> new client: $client_addr') mut reader := io.new_buffered_reader(reader: socket) defer { unsafe { reader.free() } } socket.write_string('server: hello\n') or { return } for { received_line := reader.read_line() or { return } if received_line == '' { return } println('client $client_addr: $received_line') socket.write_string('server: $received_line\n') or { return } } }