tcp_shutdown.rs - mozsearch

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#![warn(rust_2018_idioms)]

#![cfg(all(feature = "full", not(tokio_wasi)))] // Wasi doesn't support bind

use tokio::io::{self, AsyncReadExt, AsyncWriteExt};

use tokio::net::{TcpListener, TcpStream};

use tokio_test::assert_ok;

#[tokio::test]

async fn shutdown() {

    let srv = assert_ok!(TcpListener::bind("127.0.0.1:0").await);

    let addr = assert_ok!(srv.local_addr());

    tokio::spawn(async move {

        let mut stream = assert_ok!(TcpStream::connect(&addr).await);

        assert_ok!(AsyncWriteExt::shutdown(&mut stream).await);

        let mut buf = [0u8; 1];

        let n = assert_ok!(stream.read(&mut buf).await);

        assert_eq!(n, 0);

});

    let (mut stream, _) = assert_ok!(srv.accept().await);

    let (mut rd, mut wr) = stream.split();

    let n = assert_ok!(io::copy(&mut rd, &mut wr).await);

    assert_eq!(n, 0);