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//@ run-pass
#![allow(unused_must_use)]
#![allow(unused_assignments)]
//@ needs-threads
use std::sync::mpsc::{channel, Sender};
use std::thread;
pub fn main() { test00(); }
fn test00_start(c: &Sender<isize>, start: isize,
number_of_messages: isize) {
let mut i: isize = 0;
while i < number_of_messages { c.send(start + i).unwrap(); i += 1; }
}
fn test00() {
let mut r: isize = 0;
let mut sum: isize = 0;
let (tx, rx) = channel();
let number_of_messages: isize = 10;
let tx2 = tx.clone();
let t1 = thread::spawn(move|| {
test00_start(&tx2, number_of_messages * 0, number_of_messages);
});
let tx2 = tx.clone();
let t2 = thread::spawn(move|| {
test00_start(&tx2, number_of_messages * 1, number_of_messages);
});
let tx2 = tx.clone();
let t3 = thread::spawn(move|| {
test00_start(&tx2, number_of_messages * 2, number_of_messages);
});
let tx2 = tx.clone();
let t4 = thread::spawn(move|| {
test00_start(&tx2, number_of_messages * 3, number_of_messages);
});
let mut i: isize = 0;
while i < number_of_messages {
r = rx.recv().unwrap();
sum += r;
r = rx.recv().unwrap();
sum += r;
r = rx.recv().unwrap();
sum += r;
r = rx.recv().unwrap();
sum += r;
i += 1;
}
assert_eq!(sum, number_of_messages * 4 * (number_of_messages * 4 - 1) / 2);
t1.join();
t2.join();
t3.join();
t4.join();
}
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