39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
// Copyright 2012-2014 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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// ignore-test
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// This checks that preemption works.
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// note: halfway done porting to modern rust
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use std::comm;
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fn starve_main(alive: Receiver<int>) {
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println!("signalling main");
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alive.recv();
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println!("starving main");
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let mut i: int = 0;
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loop { i += 1; }
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}
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pub fn main() {
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let (port, chan) = stream();
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println!("main started");
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spawn(move|| {
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starve_main(port);
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});
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let mut i: int = 0;
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println!("main waiting for alive signal");
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chan.send(i);
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println!("main got alive signal");
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while i < 50 { println!("main iterated"); i += 1; }
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println!("main completed");
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}
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