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-rw-r--r--tests/ui/threads-sendsync/task-comm-14.rs36
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/threads-sendsync/task-comm-14.rs b/tests/ui/threads-sendsync/task-comm-14.rs
new file mode 100644
index 000000000..88d6b0902
--- /dev/null
+++ b/tests/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();
+}