Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/src/test/ui/threads-sendsync/task-comm-14.rs b/src/test/ui/threads-sendsync/task-comm-14.rs
new file mode 100644
index 000000000..88d6b0902
--- /dev/null
+++ b/src/test/ui/threads-sendsync/task-comm-14.rs
@@ -0,0 +1,36 @@
+// run-pass
+#![allow(unused_parens)]
+// ignore-emscripten no threads support
+
+use std::sync::mpsc::{channel, Sender};
+use std::thread;
+
+pub fn main() {
+    let (tx, rx) = channel();
+
+    // Spawn 10 threads each sending us back one isize.
+    let mut i = 10;
+    while (i > 0) {
+        println!("{}", i);
+        let tx = tx.clone();
+        thread::spawn({let i = i; move|| { child(i, &tx) }});
+        i = i - 1;
+    }
+
+    // Spawned threads are likely killed before they get a chance to send
+    // anything back, so we deadlock here.
+
+    i = 10;
+    while (i > 0) {
+        println!("{}", i);
+        rx.recv().unwrap();
+        i = i - 1;
+    }
+
+    println!("main thread exiting");
+}
+
+fn child(x: isize, tx: &Sender<isize>) {
+    println!("{}", x);
+    tx.send(x).unwrap();
+}