rustlings/exercises/20_threads/threads3.rs

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use std::sync::mpsc;
use std::sync::Arc;
use std::thread;
use std::time::Duration;
struct Queue {
length: u32,
first_half: Vec<u32>,
second_half: Vec<u32>,
}
impl Queue {
fn new() -> Self {
Queue {
length: 10,
first_half: vec![1, 2, 3, 4, 5],
second_half: vec![6, 7, 8, 9, 10],
}
}
}
fn send_tx(q: Queue, tx: mpsc::Sender<u32>) -> () {
thread::spawn(move || {
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for val in q.first_half {
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println!("sending {:?}", val);
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tx.send(val).unwrap();
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thread::sleep(Duration::from_secs(1));
}
});
thread::spawn(move || {
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for val in q.second_half {
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println!("sending {:?}", val);
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tx.send(val).unwrap();
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thread::sleep(Duration::from_secs(1));
}
});
}
fn main() {
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// You can optionally experiment here.
}
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#[cfg(test)]
mod tests {
use super::*;
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#[test]
fn threads3() {
let (tx, rx) = mpsc::channel();
let queue = Queue::new();
let queue_length = queue.length;
send_tx(queue, tx);
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let mut total_received: u32 = 0;
for received in rx {
println!("Got: {}", received);
total_received += 1;
}
println!("total numbers received: {}", total_received);
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assert_eq!(total_received, queue_length);
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}
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}