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