Difficulty with async operations causing deadlock in Rust core with Tokio 1.0
I'm updating my dependencies and I've been struggling with this for a few days now and could really use some help. I've searched everywhere and can't find a clear answer. I'm running into a deadlock scenario while trying to execute multiple async operations using Tokio 1.0 in my Rust application. I have a function that spawns several async tasks that communicate with one another through channels. However, when I run my code, it seems to hang indefinitely, and I suspect it might be due to the way I'm handling the futures. Here's a simplified version of my code: ```rust use tokio::sync::mpsc; use tokio::task; #[tokio::main] async fn main() { let (tx, mut rx) = mpsc::channel(32); for i in 0..5 { let tx_clone = tx.clone(); task::spawn(async move { // Simulate some work tx_clone.send(i).await.unwrap(); }); } drop(tx); // Close the sender to finish receiving. while let Some(value) = rx.recv().await { println!("Received: {}", value); } } ``` I've tried to ensure that I drop the sender after spawning the tasks, but the program still gets exploring in the `rx.recv()` loop. I also noticed that if I change the number of tasks or the capacity of the channel, it affects whether the deadlock happens or not. I've checked the Tokio documentation but I might be misunderstanding how the channel and async tasks should work together. Any advice on how to properly implement this without running into deadlocks? Is there a specific pattern I should follow for managing async task lifetimes and communications in this case? Has anyone else encountered this? For context: I'm using Rust on Windows. Has anyone else encountered this? This is part of a larger desktop app I'm building. Has anyone dealt with something similar?