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