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https://github.com/async-rs/async-std.git
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c3e38150e4
* Fix uds listener hanging on accept UDS listener was hanging because the accept method would return `Poll::Pending` without registering the task to be awoken in the case when underlying unix listener returns a WouldBlock that gets converted to None. This is a hacky fix for this case. Should fix #248 * Test simulating uds ping-pong server/client This one should reproduce #248 bug to prevent further regressions. * Code review fixes
96 lines
2.7 KiB
Rust
96 lines
2.7 KiB
Rust
#![cfg(unix)]
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use async_std::io;
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use async_std::os::unix::net::{UnixDatagram, UnixListener, UnixStream};
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use async_std::prelude::*;
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use async_std::task;
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use tempdir::TempDir;
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use std::time::Duration;
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const JULIUS_CAESAR: &[u8] = b"
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Friends, Romans, countrymen - lend me your ears!
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I come not to praise Caesar, but to bury him.
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";
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#[test]
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fn send_recv() -> io::Result<()> {
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task::block_on(async {
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let (socket1, socket2) = UnixDatagram::pair().unwrap();
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socket1.send(JULIUS_CAESAR).await?;
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let mut buf = vec![0; 1024];
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let n = socket2.recv(&mut buf).await?;
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assert_eq!(&buf[..n], JULIUS_CAESAR);
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Ok(())
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})
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}
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#[test]
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fn into_raw_fd() -> io::Result<()> {
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use async_std::os::unix::io::{FromRawFd, IntoRawFd};
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task::block_on(async {
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let (socket1, socket2) = UnixDatagram::pair().unwrap();
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socket1.send(JULIUS_CAESAR).await?;
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let mut buf = vec![0; 1024];
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let socket2 = unsafe { UnixDatagram::from_raw_fd(socket2.into_raw_fd()) };
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let n = socket2.recv(&mut buf).await?;
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assert_eq!(&buf[..n], JULIUS_CAESAR);
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Ok(())
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})
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}
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const PING: &[u8] = b"ping";
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const PONG: &[u8] = b"pong";
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const TEST_TIMEOUT: Duration = Duration::from_secs(3);
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#[test]
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fn socket_ping_pong() {
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let tmp_dir = TempDir::new("socket_ping_pong").expect("Temp dir not created");
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let sock_path = tmp_dir.as_ref().join("sock");
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let iter_cnt = 16;
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let listener =
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task::block_on(async { UnixListener::bind(&sock_path).await.expect("Socket bind") });
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let server_handle = std::thread::spawn(move || {
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task::block_on(async { ping_pong_server(listener, iter_cnt).await }).unwrap()
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});
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let client_handle = std::thread::spawn(move || {
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task::block_on(async { ping_pong_client(&sock_path, iter_cnt).await }).unwrap()
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});
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client_handle.join().unwrap();
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server_handle.join().unwrap();
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}
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async fn ping_pong_server(listener: UnixListener, iterations: u32) -> std::io::Result<()> {
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let mut incoming = listener.incoming();
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let mut buf = [0; 1024];
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for _ix in 0..iterations {
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if let Some(s) = incoming.next().await {
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let mut s = s?;
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let n = s.read(&mut buf[..]).await?;
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assert_eq!(&buf[..n], PING);
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s.write_all(&PONG).await?;
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}
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}
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Ok(())
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}
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async fn ping_pong_client(socket: &std::path::PathBuf, iterations: u32) -> std::io::Result<()> {
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let mut buf = [0; 1024];
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for _ix in 0..iterations {
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let mut socket = UnixStream::connect(&socket).await?;
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socket.write_all(&PING).await?;
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let n = async_std::io::timeout(TEST_TIMEOUT, socket.read(&mut buf[..])).await?;
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assert_eq!(&buf[..n], PONG);
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}
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Ok(())
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}
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