64 lines
1.4 KiB
Rust
64 lines
1.4 KiB
Rust
// threads3.rs
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// Execute `rustlings hint threads3` or use the `hint` watch subcommand for a hint.
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use std::sync::mpsc;
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use std::sync::Arc;
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use std::thread;
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use std::time::Duration;
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struct Queue {
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length: u32,
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first_half: Vec<u32>,
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second_half: Vec<u32>,
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}
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impl Queue {
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fn new() -> Self {
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Queue {
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length: 10,
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first_half: vec![1, 2, 3, 4, 5],
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second_half: vec![6, 7, 8, 9, 10],
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}
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}
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}
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fn send_tx(q: Queue, tx: mpsc::Sender<u32>) -> () {
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let qc = Arc::new(q);
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let qc1 = Arc::clone(&qc);
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let qc2 = Arc::clone(&qc);
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let tx1 = tx.clone();
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thread::spawn(move || {
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for val in &qc1.first_half {
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println!("sending {:?}", val);
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tx1.send(*val).unwrap();
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thread::sleep(Duration::from_secs(1));
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}
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});
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thread::spawn(move || {
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for val in &qc2.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));
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}
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});
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}
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fn main() {
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let (tx, rx) = mpsc::channel();
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let queue = Queue::new();
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let queue_length = queue.length;
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send_tx(queue, tx);
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let mut total_received: u32 = 0;
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for received in rx {
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println!("Got: {}", received);
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total_received += 1;
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}
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println!("total numbers received: {}", total_received);
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assert_eq!(total_received, queue_length)
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}
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