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// run-pass
// ignore-emscripten no threads support
use std::thread;
use std::sync::mpsc::{channel, Receiver};
fn periodical(n: isize) -> Receiver<bool> {
let (chan, port) = channel();
thread::spawn(move|| {
loop {
for _ in 1..n {
match chan.send(false) {
Ok(()) => {}
Err(..) => break,
}
}
match chan.send(true) {
Ok(()) => {}
Err(..) => break
}
}
});
return port;
}
fn integers() -> Receiver<isize> {
let (chan, port) = channel();
thread::spawn(move|| {
let mut i = 1;
loop {
match chan.send(i) {
Ok(()) => {}
Err(..) => break,
}
i = i + 1;
}
});
return port;
}
fn main() {
let ints = integers();
let threes = periodical(3);
let fives = periodical(5);
for _ in 1..100 {
match (ints.recv().unwrap(), threes.recv().unwrap(), fives.recv().unwrap()) {
(_, true, true) => println!("FizzBuzz"),
(_, true, false) => println!("Fizz"),
(_, false, true) => println!("Buzz"),
(i, false, false) => println!("{}", i)
}
}
}
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