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// xfail-win32
// Create a task that is supervised by another task,
// join the supervised task from the supervising task,
// then fail the supervised task. The supervised task
// will kill the supervising task, waking it up. The
// supervising task no longer needs to be wakened when
// the supervised task exits.
use std;
import task;
fn supervised(&&_args: ()) {
// 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(&&_args: ()) {
// 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;
let t = task::spawn_joinable((), supervised);
task::join(t);
}
fn main() {
let dom2 = task::spawn_joinable((), supervisor);
task::join(dom2);
}
// Local Variables:
// mode: rust;
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// End:
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