1 #![warn(rust_2018_idioms)]
2 #![cfg(feature = "full")]
3 #![cfg(unix)]
4 
5 use tokio::net::UnixDatagram;
6 
7 use std::io;
8 
echo_server(mut socket: UnixDatagram) -> io::Result<()>9 async fn echo_server(mut socket: UnixDatagram) -> io::Result<()> {
10     let mut recv_buf = vec![0u8; 1024];
11     loop {
12         let (len, peer_addr) = socket.recv_from(&mut recv_buf[..]).await?;
13         if let Some(path) = peer_addr.as_pathname() {
14             socket.send_to(&recv_buf[..len], path).await?;
15         }
16     }
17 }
18 
19 #[tokio::test]
echo() -> io::Result<()>20 async fn echo() -> io::Result<()> {
21     let dir = tempfile::tempdir().unwrap();
22     let server_path = dir.path().join("server.sock");
23     let client_path = dir.path().join("client.sock");
24 
25     let server_socket = UnixDatagram::bind(server_path.clone())?;
26 
27     tokio::spawn(async move {
28         if let Err(e) = echo_server(server_socket).await {
29             eprintln!("Error in echo server: {}", e);
30         }
31     });
32 
33     {
34         let mut socket = UnixDatagram::bind(&client_path).unwrap();
35         socket.connect(server_path)?;
36         socket.send(b"ECHO").await?;
37         let mut recv_buf = [0u8; 16];
38         let len = socket.recv(&mut recv_buf[..]).await?;
39         assert_eq!(&recv_buf[..len], b"ECHO");
40     }
41 
42     Ok(())
43 }
44