Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/ui/threads-sendsync/task-comm-15.rs b/tests/ui/threads-sendsync/task-comm-15.rs
new file mode 100644
index 000000000..adb14abdc
--- /dev/null
+++ b/tests/ui/threads-sendsync/task-comm-15.rs
@@ -0,0 +1,28 @@
+// run-pass
+#![allow(unused_must_use)]
+// ignore-emscripten no threads support
+// pretty-expanded FIXME #23616
+
+use std::sync::mpsc::{channel, Sender};
+use std::thread;
+
+fn start(tx: &Sender<isize>, i0: isize) {
+    let mut i = i0;
+    while i > 0 {
+        tx.send(0).unwrap();
+        i = i - 1;
+    }
+}
+
+pub fn main() {
+    // Spawn a thread that sends us back messages. The parent thread
+    // is likely to terminate before the child completes, so from
+    // the child's point of view the receiver may die. We should
+    // drop messages on the floor in this case, and not crash!
+    let (tx, rx) = channel();
+    let t = thread::spawn(move|| {
+        start(&tx, 10)
+    });
+    rx.recv();
+    t.join();
+}