环境
- Time 2022-01-12
- Rust 1.57.0
- Tokio 1.15.0
概念
参考:https://docs.rs/tokio/latest/tokio/sync/index.html
示例
main.rs
use tokio::sync::{mpsc, oneshot};
#[tokio::main]
async fn main() {
let (tx, mut rx) = mpsc::unbounded_channel::<(String, oneshot::Sender<String>)>();
tokio::spawn(async move {
while let Some((name, sender)) = rx.recv().await {
sender.send(format!("hi, {}", name)).unwrap();
}
});
let mut handles = vec![];
for index in 0..10 {
let tx = tx.clone();
handles.push(tokio::spawn(async move {
let (sender, receiver) = oneshot::channel();
tx.send((format!("jiangbo-{}", index), sender)).unwrap();
println!("received: {}", receiver.await.unwrap());
}));
}
for join_handle in handles.drain(..) {
join_handle.await.unwrap();
}
}
总结
使用 mpsc
和 oneshot
实现异步的请求和响应。