test exposing memory management failure for #1078

Author: nikomatsakis

src/test/run-pass/task-killjoin-rsrc.rs

@@ -0,0 +1,59 @@
+// xfail-test
+
+// A port of task-killjoin to use a resource to manage
+// the join.  
+
+use std;
+import task;
+
+fn joinable(f: fn()) -> (task::task, comm::port<bool>) {
+    resource notify(data: (comm::chan<bool>,
+                           @mutable bool)) {
+        let (c, v) = data;
+        comm::send(c, *v);
+    }
+    fn wrapper(pair: (comm::chan<bool>, fn())) {
+        let (c, f) = pair;
+        let b = @mutable false;
+        let _r = notify((c, b));
+        f();
+        *b = true;
+    }
+    let p = comm::port();
+    let c = comm::chan(p);
+    let t = task::spawn((c, f), wrapper);
+    ret (t, p);
+}
+
+fn join(pair: (task::task, comm::port<bool>)) -> bool {
+    let (_, port) = pair;
+    comm::recv(port)
+}
+
+fn supervised() {
+    // Yield to make sure the supervisor joins before we
+    // fail. This is currently not needed because the supervisor
+    // runs first, but I can imagine that changing.
+    task::yield();
+    fail;
+}
+
+fn supervisor() {
+    // Unsupervise this task so the process doesn't return a failure status as
+    // a result of the main task being killed.
+    task::unsupervise();
+    let f = supervised;
+    join(joinable(supervised));
+}
+
+fn main() {
+    join(joinable(supervisor));
+}
+
+// Local Variables:
+// mode: rust;
+// fill-column: 78;
+// indent-tabs-mode: nil
+// c-basic-offset: 4
+// buffer-file-coding-system: utf-8-unix
+// End: