From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 16:29:10 +0200
Subject: Adding upstream version 86.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/mio/test/test_notify.rs | 192 +++++++++++++++++++++++++++++++
 1 file changed, 192 insertions(+)
 create mode 100644 third_party/rust/mio/test/test_notify.rs

(limited to 'third_party/rust/mio/test/test_notify.rs')

diff --git a/third_party/rust/mio/test/test_notify.rs b/third_party/rust/mio/test/test_notify.rs
new file mode 100644
index 0000000000..a6a8e51f67
--- /dev/null
+++ b/third_party/rust/mio/test/test_notify.rs
@@ -0,0 +1,192 @@
+use {localhost, sleep_ms};
+use mio::*;
+use mio::deprecated::{EventLoop, EventLoopBuilder, Handler, Sender, NotifyError};
+use mio::net::TcpListener;
+use std::thread;
+
+struct TestHandler {
+    sender: Sender<String>,
+    notify: usize
+}
+
+impl TestHandler {
+    fn new(sender: Sender<String>) -> TestHandler {
+        TestHandler {
+            sender,
+            notify: 0
+        }
+    }
+}
+
+impl Handler for TestHandler {
+    type Timeout = usize;
+    type Message = String;
+
+    fn notify(&mut self, event_loop: &mut EventLoop<TestHandler>, msg: String) {
+        match self.notify {
+            0 => {
+                assert!(msg == "First", "actual={}", msg);
+                self.sender.send("Second".to_string()).unwrap();
+            }
+            1 => {
+                assert!(msg == "Second", "actual={}", msg);
+                event_loop.shutdown();
+            }
+            v => panic!("unexpected value for notify; val={}", v)
+        }
+
+        self.notify += 1;
+    }
+}
+
+#[test]
+pub fn test_notify() {
+    debug!("Starting TEST_NOTIFY");
+    let mut event_loop = EventLoop::new().unwrap();
+
+    let addr = localhost();
+
+    // Setup a server socket so that the event loop blocks
+    let srv = TcpListener::bind(&addr).unwrap();
+
+    event_loop.register(&srv, Token(0), Ready::readable() | Ready::writable(), PollOpt::edge()).unwrap();
+
+    let sender = event_loop.channel();
+
+    thread::spawn(move || {
+        sleep_ms(1_000);
+        sender.send("First".to_string()).unwrap();
+    });
+
+    let sender = event_loop.channel();
+    let mut handler = TestHandler::new(sender);
+
+    // Start the event loop
+    event_loop.run(&mut handler).unwrap();
+
+    assert!(handler.notify == 2, "actual={}", handler.notify);
+}
+
+#[test]
+pub fn test_notify_capacity() {
+    use std::sync::mpsc::*;
+    use std::thread;
+
+    struct Capacity(Receiver<i32>);
+
+    impl Handler for Capacity {
+        type Message = i32;
+        type Timeout = ();
+
+        fn notify(&mut self, event_loop: &mut EventLoop<Capacity>, msg: i32) {
+            if msg == 1 {
+                self.0.recv().unwrap();
+            } else if msg == 3 {
+                event_loop.shutdown();
+            }
+        }
+    }
+
+    let mut builder = EventLoopBuilder::new();
+    builder.notify_capacity(1);
+
+    let (tx, rx) = channel::<i32>();
+    let mut event_loop = builder.build().unwrap();
+    let notify = event_loop.channel();
+
+    let handle = thread::spawn(move || {
+        let mut handler = Capacity(rx);
+        event_loop.run(&mut handler).unwrap();
+    });
+
+    assert!(notify.send(1).is_ok());
+
+    loop {
+        if notify.send(2).is_err() {
+            break;
+        }
+    }
+
+    tx.send(1).unwrap();
+
+    loop {
+        if notify.send(3).is_ok() {
+            break;
+        }
+    }
+
+    handle.join().unwrap();
+}
+
+#[test]
+pub fn test_notify_drop() {
+    use std::sync::mpsc::{self,Sender};
+    use std::thread;
+
+    struct MessageDrop(Sender<u8>);
+
+    impl Drop for MessageDrop {
+        fn drop(&mut self) {
+            self.0.send(0).unwrap();
+        }
+    }
+
+    struct DummyHandler;
+
+    impl Handler for DummyHandler {
+        type Timeout = ();
+        type Message = MessageDrop;
+
+        fn notify(&mut self, event_loop: &mut EventLoop<Self>, msg: MessageDrop) {
+            msg.0.send(1).unwrap();
+            drop(msg);
+            // We stop after the first message
+            event_loop.shutdown();
+        }
+    }
+
+    let (tx_notif_1, rx_notif_1) = mpsc::channel();
+    let (tx_notif_2, rx_notif_2) = mpsc::channel();
+    let (tx_notif_3, _unused) = mpsc::channel();
+    let (tx_exit_loop, rx_exit_loop) = mpsc::channel();
+    let (tx_drop_loop, rx_drop_loop) = mpsc::channel();
+
+    let mut event_loop = EventLoop::new().unwrap();
+    let notify = event_loop.channel();
+
+    let handle = thread::spawn(move || {
+        let mut handler = DummyHandler;
+        event_loop.run(&mut handler).unwrap();
+
+        // Confirmation we exited the loop
+        tx_exit_loop.send(()).unwrap();
+
+        // Order to drop the loop
+        rx_drop_loop.recv().unwrap();
+        drop(event_loop);
+    });
+    notify.send(MessageDrop(tx_notif_1)).unwrap();
+    assert_eq!(rx_notif_1.recv().unwrap(), 1); // Response from the loop
+    assert_eq!(rx_notif_1.recv().unwrap(), 0); // Drop notification
+
+    // We wait for the event loop to exit before sending the second notification
+    rx_exit_loop.recv().unwrap();
+    notify.send(MessageDrop(tx_notif_2)).unwrap();
+
+    // We ensure the message is indeed stuck in the queue
+    sleep_ms(100);
+    assert!(rx_notif_2.try_recv().is_err());
+
+    // Give the order to drop the event loop
+    tx_drop_loop.send(()).unwrap();
+    assert_eq!(rx_notif_2.recv().unwrap(), 0); // Drop notification
+
+    // Check that sending a new notification will return an error
+    // We should also get our message back
+    match notify.send(MessageDrop(tx_notif_3)).unwrap_err() {
+        NotifyError::Closed(Some(..)) => {}
+        _ => panic!(),
+    }
+
+    handle.join().unwrap();
+}
-- 
cgit v1.2.3