1 // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // This test may not always fail, but it can be flaky if the race it used to
12 // expose is still present.
14 use std::comm::{channel, Sender, Receiver};
15 use std::thread::Thread;
17 fn helper(rx: Receiver<Sender<()>>) {
19 let _ = tx.send_opt(());
24 let (tx, rx) = channel();
25 let _t = Thread::spawn(move|| { helper(rx) }).detach();
26 let (snd, rcv) = channel::<int>();
27 for _ in range(1i, 100000i) {
29 let (tx2, rx2) = channel();
32 () = rx2.recv() => (),