rust/src/test/run-pass/task-comm-14.rs

34 lines
666 B
Rust

use std;
import comm;
import task;
fn main() {
let po = comm::port::<int>();
// Spawn 10 tasks each sending us back one int.
let i = 10;
while (i > 0) {
log(debug, i);
task::spawn((i, comm::chan(po)), child);
i = i - 1;
}
// Spawned tasks are likely killed before they get a chance to send
// anything back, so we deadlock here.
i = 10;
let value = 0;
while (i > 0) {
log(debug, i);
value = comm::recv(po);
i = i - 1;
}
#debug("main thread exiting");
}
fn child(&&args: (int, comm::chan<int>)) {
let (x, ch) = args;
log(debug, x);
comm::send(ch, x);
}