diff options
Diffstat (limited to 'src/test/ui/run-pass/threads-sendsync/task-comm-14.rs')
| -rw-r--r-- | src/test/ui/run-pass/threads-sendsync/task-comm-14.rs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/test/ui/run-pass/threads-sendsync/task-comm-14.rs b/src/test/ui/run-pass/threads-sendsync/task-comm-14.rs new file mode 100644 index 00000000000..a03ff8719bb --- /dev/null +++ b/src/test/ui/run-pass/threads-sendsync/task-comm-14.rs @@ -0,0 +1,44 @@ +// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// ignore-emscripten no threads support + +use std::sync::mpsc::{channel, Sender}; +use std::thread; + +pub fn main() { + let (tx, rx) = channel(); + + // Spawn 10 threads each sending us back one isize. + let mut i = 10; + while (i > 0) { + println!("{}", i); + let tx = tx.clone(); + thread::spawn({let i = i; move|| { child(i, &tx) }}); + i = i - 1; + } + + // Spawned threads are likely killed before they get a chance to send + // anything back, so we deadlock here. + + i = 10; + while (i > 0) { + println!("{}", i); + rx.recv().unwrap(); + i = i - 1; + } + + println!("main thread exiting"); +} + +fn child(x: isize, tx: &Sender<isize>) { + println!("{}", x); + tx.send(x).unwrap(); +} |
