| //! A small example of a server that accepts TCP connections and writes out |
| //! `Hello!` to them, afterwards closing the connection. |
| //! |
| //! You can test this out by running: |
| //! |
| //! cargo run --example hello |
| //! |
| //! and then in another terminal executing |
| //! |
| //! cargo run --example connect 127.0.0.1:8080 |
| //! |
| //! You should see `Hello!` printed out and then the `nc` program will exit. |
| |
| extern crate env_logger; |
| extern crate futures; |
| extern crate tokio_core; |
| extern crate tokio_io; |
| |
| use std::env; |
| use std::net::SocketAddr; |
| |
| use futures::stream::Stream; |
| use tokio_core::reactor::Core; |
| use tokio_core::net::TcpListener; |
| |
| fn main() { |
| env_logger::init().unwrap(); |
| let addr = env::args().nth(1).unwrap_or("127.0.0.1:8080".to_string()); |
| let addr = addr.parse::<SocketAddr>().unwrap(); |
| |
| let mut core = Core::new().unwrap(); |
| let listener = TcpListener::bind(&addr, &core.handle()).unwrap(); |
| |
| let addr = listener.local_addr().unwrap(); |
| println!("Listening for connections on {}", addr); |
| |
| let clients = listener.incoming(); |
| let welcomes = clients.and_then(|(socket, _peer_addr)| { |
| tokio_io::io::write_all(socket, b"Hello!\n") |
| }); |
| let server = welcomes.for_each(|(_socket, _welcome)| { |
| Ok(()) |
| }); |
| |
| core.run(server).unwrap(); |
| } |