rust/tests/ui/threads-sendsync/task-comm-9.rs

41 lines
804 B
Rust

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