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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.
extern mod std;
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.
let f = supervised;
task::try(supervised);
}
fn main() {
task::spawn_unlinked(supervisor)
}
// 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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