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//@ run-pass
#![allow(unused_must_use)]
#![allow(deprecated)]
//@ needs-threads
use std::sync::mpsc::{channel, TryRecvError};
use std::thread;
pub fn main() {
let (tx, rx) = channel();
let t = thread::spawn(move || {
thread::sleep_ms(10);
tx.send(()).unwrap();
});
loop {
match rx.try_recv() {
Ok(()) => break,
Err(TryRecvError::Empty) => {}
Err(TryRecvError::Disconnected) => unreachable!(),
}
}
t.join();
}
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