39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
// 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.
|
|
|
|
#![feature(std_misc)]
|
|
|
|
use std::thread::Thread;
|
|
use std::sync::mpsc::{channel, Sender};
|
|
|
|
fn start(tx: &Sender<Sender<String>>) {
|
|
let (tx2, rx) = channel();
|
|
tx.send(tx2).unwrap();
|
|
|
|
let mut a;
|
|
let mut b;
|
|
a = rx.recv().unwrap();
|
|
assert!(a == "A".to_string());
|
|
println!("{}", a);
|
|
b = rx.recv().unwrap();
|
|
assert!(b == "B".to_string());
|
|
println!("{}", b);
|
|
}
|
|
|
|
pub fn main() {
|
|
let (tx, rx) = channel();
|
|
let _child = Thread::spawn(move|| { start(&tx) });
|
|
|
|
let mut c = rx.recv().unwrap();
|
|
c.send("A".to_string()).unwrap();
|
|
c.send("B".to_string()).unwrap();
|
|
Thread::yield_now();
|
|
}
|