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1 | // Copyright 2012 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. | |
4 | // | |
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. | |
10 | ||
c34b1796 | 11 | |
1a4d82fc JJ |
12 | #![allow(unknown_features)] |
13 | #![feature(box_syntax)] | |
223e47cc | 14 | |
1a4d82fc | 15 | use std::sync::mpsc::{channel, Sender}; |
85aaf69f | 16 | use std::thread; |
1a4d82fc | 17 | |
c34b1796 | 18 | fn child(tx: &Sender<Box<usize>>, i: usize) { |
1a4d82fc | 19 | tx.send(box i).unwrap(); |
223e47cc LB |
20 | } |
21 | ||
22 | pub fn main() { | |
1a4d82fc | 23 | let (tx, rx) = channel(); |
c34b1796 AL |
24 | let n = 100; |
25 | let mut expected = 0; | |
9346a6ac | 26 | let ts = (0..n).map(|i| { |
223e47cc | 27 | expected += i; |
1a4d82fc | 28 | let tx = tx.clone(); |
9346a6ac | 29 | thread::spawn(move|| { |
1a4d82fc JJ |
30 | child(&tx, i) |
31 | }) | |
32 | }).collect::<Vec<_>>(); | |
223e47cc | 33 | |
c34b1796 AL |
34 | let mut actual = 0; |
35 | for _ in 0..n { | |
1a4d82fc | 36 | let j = rx.recv().unwrap(); |
223e47cc LB |
37 | actual += *j; |
38 | } | |
39 | ||
970d7e83 | 40 | assert_eq!(expected, actual); |
9346a6ac AL |
41 | |
42 | for t in ts { t.join(); } | |
223e47cc | 43 | } |