mirror of
https://github.com/fafhrd91/actix-net
synced 2024-11-24 08:12:59 +01:00
454 lines
13 KiB
Rust
454 lines
13 KiB
Rust
use std::sync::atomic::{AtomicUsize, Ordering};
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use std::sync::{mpsc, Arc};
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use std::{net, thread, time::Duration};
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use actix_rt::{net::TcpStream, time::sleep};
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use actix_server::Server;
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use actix_service::fn_service;
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use actix_utils::future::ok;
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use futures_util::future::lazy;
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fn unused_addr() -> net::SocketAddr {
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let addr: net::SocketAddr = "127.0.0.1:0".parse().unwrap();
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let socket = mio::net::TcpSocket::new_v4().unwrap();
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socket.bind(addr).unwrap();
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socket.set_reuseaddr(true).unwrap();
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let tcp = socket.listen(32).unwrap();
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tcp.local_addr().unwrap()
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}
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#[test]
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fn test_bind() {
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let addr = unused_addr();
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let (tx, rx) = mpsc::channel();
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let h = thread::spawn(move || {
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let sys = actix_rt::System::new();
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let srv = sys.block_on(lazy(|_| {
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Server::build()
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.workers(1)
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.disable_signals()
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.bind("test", addr, move || fn_service(|_| ok::<_, ()>(())))
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.unwrap()
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.run()
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}));
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let _ = tx.send((srv, actix_rt::System::current()));
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let _ = sys.run();
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});
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let (_, sys) = rx.recv().unwrap();
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thread::sleep(Duration::from_millis(500));
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assert!(net::TcpStream::connect(addr).is_ok());
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sys.stop();
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let _ = h.join();
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}
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#[test]
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fn test_listen() {
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let addr = unused_addr();
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let (tx, rx) = mpsc::channel();
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let h = thread::spawn(move || {
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let sys = actix_rt::System::new();
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let lst = net::TcpListener::bind(addr).unwrap();
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sys.block_on(async {
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Server::build()
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.disable_signals()
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.workers(1)
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.listen("test", lst, move || fn_service(|_| ok::<_, ()>(())))
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.unwrap()
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.run();
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let _ = tx.send(actix_rt::System::current());
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});
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let _ = sys.run();
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});
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let sys = rx.recv().unwrap();
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thread::sleep(Duration::from_millis(500));
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assert!(net::TcpStream::connect(addr).is_ok());
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sys.stop();
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let _ = h.join();
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}
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#[test]
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#[cfg(unix)]
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fn test_start() {
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use std::io::Read;
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use actix_codec::{BytesCodec, Framed};
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use bytes::Bytes;
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use futures_util::sink::SinkExt;
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let addr = unused_addr();
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let (tx, rx) = mpsc::channel();
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let h = thread::spawn(move || {
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let sys = actix_rt::System::new();
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let srv = sys.block_on(lazy(|_| {
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Server::build()
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.backlog(100)
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.disable_signals()
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.bind("test", addr, move || {
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fn_service(|io: TcpStream| async move {
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let mut f = Framed::new(io, BytesCodec);
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f.send(Bytes::from_static(b"test")).await.unwrap();
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Ok::<_, ()>(())
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})
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})
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.unwrap()
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.run()
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}));
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let _ = tx.send((srv, actix_rt::System::current()));
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let _ = sys.run();
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});
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let (srv, sys) = rx.recv().unwrap();
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let mut buf = [1u8; 4];
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let mut conn = net::TcpStream::connect(addr).unwrap();
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let _ = conn.read_exact(&mut buf);
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assert_eq!(buf, b"test"[..]);
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// pause
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let _ = srv.pause();
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thread::sleep(Duration::from_millis(200));
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let mut conn = net::TcpStream::connect(addr).unwrap();
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conn.set_read_timeout(Some(Duration::from_millis(100)))
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.unwrap();
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let res = conn.read_exact(&mut buf);
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assert!(res.is_err());
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// resume
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let _ = srv.resume();
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thread::sleep(Duration::from_millis(100));
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assert!(net::TcpStream::connect(addr).is_ok());
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assert!(net::TcpStream::connect(addr).is_ok());
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assert!(net::TcpStream::connect(addr).is_ok());
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let mut buf = [0u8; 4];
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let mut conn = net::TcpStream::connect(addr).unwrap();
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let _ = conn.read_exact(&mut buf);
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assert_eq!(buf, b"test"[..]);
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// stop
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let _ = srv.stop(false);
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thread::sleep(Duration::from_millis(100));
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assert!(net::TcpStream::connect(addr).is_err());
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thread::sleep(Duration::from_millis(100));
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sys.stop();
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let _ = h.join();
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}
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#[actix_rt::test]
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async fn test_max_concurrent_connections() {
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// Note:
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// A tcp listener would accept connects based on it's backlog setting.
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//
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// The limit test on the other hand is only for concurrent tcp stream limiting a work
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// thread accept.
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use tokio::io::AsyncWriteExt;
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let addr = unused_addr();
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let (tx, rx) = mpsc::channel();
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let counter = Arc::new(AtomicUsize::new(0));
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let counter_clone = counter.clone();
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let max_conn = 3;
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let h = thread::spawn(move || {
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actix_rt::System::new().block_on(async {
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let server = Server::build()
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// Set a relative higher backlog.
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.backlog(12)
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// max connection for a worker is 3.
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.maxconn(max_conn)
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.workers(1)
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.disable_signals()
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.bind("test", addr, move || {
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let counter = counter.clone();
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fn_service(move |_io: TcpStream| {
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let counter = counter.clone();
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async move {
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counter.fetch_add(1, Ordering::SeqCst);
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sleep(Duration::from_secs(20)).await;
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counter.fetch_sub(1, Ordering::SeqCst);
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Ok::<(), ()>(())
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}
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})
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})?
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.run();
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let _ = tx.send((server.clone(), actix_rt::System::current()));
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server.await
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})
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});
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let (srv, sys) = rx.recv().unwrap();
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let mut conns = vec![];
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for _ in 0..12 {
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let conn = tokio::net::TcpStream::connect(addr).await.unwrap();
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conns.push(conn);
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}
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sleep(Duration::from_secs(5)).await;
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// counter would remain at 3 even with 12 successful connection.
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// and 9 of them remain in backlog.
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assert_eq!(max_conn, counter_clone.load(Ordering::SeqCst));
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for mut conn in conns {
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conn.shutdown().await.unwrap();
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}
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srv.stop(false).await;
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sys.stop();
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let _ = h.join().unwrap();
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}
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#[actix_rt::test]
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async fn test_service_restart() {
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use std::task::{Context, Poll};
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use actix_service::{fn_factory, Service};
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use futures_core::future::LocalBoxFuture;
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use tokio::io::AsyncWriteExt;
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struct TestService(Arc<AtomicUsize>);
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impl Service<TcpStream> for TestService {
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type Response = ();
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type Error = ();
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type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
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fn poll_ready(&self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
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let TestService(ref counter) = self;
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let c = counter.fetch_add(1, Ordering::SeqCst);
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// Force the service to restart on first readiness check.
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if c > 0 {
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Poll::Ready(Ok(()))
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} else {
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Poll::Ready(Err(()))
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}
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}
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fn call(&self, _: TcpStream) -> Self::Future {
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Box::pin(async { Ok(()) })
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}
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}
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let addr1 = unused_addr();
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let addr2 = unused_addr();
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let (tx, rx) = mpsc::channel();
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let num = Arc::new(AtomicUsize::new(0));
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let num2 = Arc::new(AtomicUsize::new(0));
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let num_clone = num.clone();
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let num2_clone = num2.clone();
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let h = thread::spawn(move || {
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let num = num.clone();
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actix_rt::System::new().block_on(async {
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let server = Server::build()
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.backlog(1)
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.disable_signals()
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.bind("addr1", addr1, move || {
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let num = num.clone();
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fn_factory(move || {
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let num = num.clone();
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async move { Ok::<_, ()>(TestService(num)) }
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})
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})
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.unwrap()
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.bind("addr2", addr2, move || {
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let num2 = num2.clone();
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fn_factory(move || {
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let num2 = num2.clone();
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async move { Ok::<_, ()>(TestService(num2)) }
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})
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})
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.unwrap()
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.workers(1)
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.run();
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let _ = tx.send((server.clone(), actix_rt::System::current()));
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server.await
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})
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});
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let (server, sys) = rx.recv().unwrap();
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for _ in 0..5 {
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TcpStream::connect(addr1)
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.await
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.unwrap()
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.shutdown()
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.await
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.unwrap();
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TcpStream::connect(addr2)
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.await
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.unwrap()
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.shutdown()
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.await
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.unwrap();
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}
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sleep(Duration::from_secs(3)).await;
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assert!(num_clone.load(Ordering::SeqCst) > 5);
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assert!(num2_clone.load(Ordering::SeqCst) > 5);
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sys.stop();
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let _ = server.stop(false);
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let _ = h.join().unwrap();
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}
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#[ignore]
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#[actix_rt::test]
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async fn worker_restart() {
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use actix_service::{Service, ServiceFactory};
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use futures_core::future::LocalBoxFuture;
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use tokio::io::{AsyncReadExt, AsyncWriteExt};
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struct TestServiceFactory(Arc<AtomicUsize>);
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impl ServiceFactory<TcpStream> for TestServiceFactory {
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type Response = ();
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type Error = ();
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type Config = ();
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type Service = TestService;
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type InitError = ();
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type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
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fn new_service(&self, _: Self::Config) -> Self::Future {
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let counter = self.0.fetch_add(1, Ordering::Relaxed);
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Box::pin(async move { Ok(TestService(counter)) })
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}
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}
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struct TestService(usize);
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impl Service<TcpStream> for TestService {
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type Response = ();
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type Error = ();
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type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
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actix_service::always_ready!();
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fn call(&self, stream: TcpStream) -> Self::Future {
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let counter = self.0;
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let mut stream = stream.into_std().unwrap();
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use std::io::Write;
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let str = counter.to_string();
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let buf = str.as_bytes();
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let mut written = 0;
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while written < buf.len() {
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if let Ok(n) = stream.write(&buf[written..]) {
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written += n;
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}
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}
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stream.flush().unwrap();
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stream.shutdown(net::Shutdown::Write).unwrap();
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// force worker 2 to restart service once.
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if counter == 2 {
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panic!("panic on purpose")
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} else {
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Box::pin(async { Ok(()) })
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}
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}
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}
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let addr = unused_addr();
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let (tx, rx) = mpsc::channel();
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let counter = Arc::new(AtomicUsize::new(1));
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let h = thread::spawn(move || {
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let counter = counter.clone();
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actix_rt::System::new().block_on(async {
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let server = Server::build()
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.disable_signals()
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.bind("addr", addr, move || TestServiceFactory(counter.clone()))
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.unwrap()
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.workers(2)
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.run();
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let _ = tx.send((server.clone(), actix_rt::System::current()));
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server.await
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})
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});
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let (server, sys) = rx.recv().unwrap();
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sleep(Duration::from_secs(3)).await;
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let mut buf = [0; 8];
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// worker 1 would not restart and return it's id consistently.
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let mut stream = TcpStream::connect(addr).await.unwrap();
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let n = stream.read(&mut buf).await.unwrap();
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let id = String::from_utf8_lossy(&buf[0..n]);
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assert_eq!("1", id);
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stream.shutdown().await.unwrap();
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// worker 2 dead after return response.
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let mut stream = TcpStream::connect(addr).await.unwrap();
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let n = stream.read(&mut buf).await.unwrap();
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let id = String::from_utf8_lossy(&buf[0..n]);
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assert_eq!("2", id);
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stream.shutdown().await.unwrap();
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// request to worker 1
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let mut stream = TcpStream::connect(addr).await.unwrap();
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let n = stream.read(&mut buf).await.unwrap();
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let id = String::from_utf8_lossy(&buf[0..n]);
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assert_eq!("1", id);
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stream.shutdown().await.unwrap();
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// TODO: Remove sleep if it can pass CI.
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sleep(Duration::from_secs(3)).await;
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// worker 2 restarting and work goes to worker 1.
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let mut stream = TcpStream::connect(addr).await.unwrap();
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let n = stream.read(&mut buf).await.unwrap();
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let id = String::from_utf8_lossy(&buf[0..n]);
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assert_eq!("1", id);
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stream.shutdown().await.unwrap();
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// TODO: Remove sleep if it can pass CI.
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sleep(Duration::from_secs(3)).await;
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// worker 2 restarted but worker 1 was still the next to accept connection.
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let mut stream = TcpStream::connect(addr).await.unwrap();
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let n = stream.read(&mut buf).await.unwrap();
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let id = String::from_utf8_lossy(&buf[0..n]);
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assert_eq!("1", id);
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stream.shutdown().await.unwrap();
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// TODO: Remove sleep if it can pass CI.
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sleep(Duration::from_secs(3)).await;
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// worker 2 accept connection again but it's id is 3.
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let mut stream = TcpStream::connect(addr).await.unwrap();
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let n = stream.read(&mut buf).await.unwrap();
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let id = String::from_utf8_lossy(&buf[0..n]);
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assert_eq!("3", id);
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stream.shutdown().await.unwrap();
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sys.stop();
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let _ = server.stop(false);
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let _ = h.join().unwrap();
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}
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