Note: I also post this question in reddit and rust forum.

hi, I’m writing a TUI executable, I use tokio::select on crossterm::event::EventStream to achieve a non-blocking loop to receive user keyboard/mouse events.

At the same time, I also want to create an async task queue that can run some generic tasks: read/write files, update data logic, delay/timeout methods.

The word task here is similar to function pointers with a global context in C/C++.

After I read some documents, I found rust and tokio provide the tokio::task::JoinSet, it could help me create new async tasks, and run them in multiple green threads. And also possible to abort all the tasks, or wait for them done.

That’s probably what I want. But I still have 1 more question:

The JoinSet is not a future Stream, so I cannot use tokio::select on it. So how could I know what task is completed?

If I don’t select it, but keep create new tasks. Will it increase memory usage along with the tasks created, and finally get out of memory and crash the TUI application?