44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(unknown_features)]
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#![feature(box_syntax)]
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use std::sync::mpsc::{channel, Sender};
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use std::thread;
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fn child(tx: &Sender<Box<usize>>, i: usize) {
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tx.send(box i).unwrap();
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}
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pub fn main() {
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let (tx, rx) = channel();
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let n = 100;
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let mut expected = 0;
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let ts = (0..n).map(|i| {
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expected += i;
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let tx = tx.clone();
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thread::spawn(move|| {
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child(&tx, i)
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})
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}).collect::<Vec<_>>();
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let mut actual = 0;
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for _ in 0..n {
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let j = rx.recv().unwrap();
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actual += *j;
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}
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assert_eq!(expected, actual);
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for t in ts { t.join(); }
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}
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