33 lines
666 B
Rust
33 lines
666 B
Rust
// xfail-fast
|
|
#[legacy_modes];
|
|
|
|
fn main() {
|
|
let po = pipes::PortSet();
|
|
|
|
// Spawn 10 tasks each sending us back one int.
|
|
let mut i = 10;
|
|
while (i > 0) {
|
|
log(debug, i);
|
|
let (ch, p) = pipes::stream();
|
|
po.add(move p);
|
|
task::spawn(|move ch, copy i| child(i, ch) );
|
|
i = i - 1;
|
|
}
|
|
|
|
// Spawned tasks are likely killed before they get a chance to send
|
|
// anything back, so we deadlock here.
|
|
|
|
i = 10;
|
|
while (i > 0) {
|
|
log(debug, i);
|
|
po.recv();
|
|
i = i - 1;
|
|
}
|
|
|
|
debug!("main thread exiting");
|
|
}
|
|
|
|
fn child(x: int, ch: pipes::Chan<int>) {
|
|
log(debug, x);
|
|
ch.send(x);
|
|
}
|