Properly usage of oneshot channel

[BratSinot]

P.S. Extent of this: #4776

So, I don't get it what the point of oneshot and how to use it right.
I tried to use oneshot and sometimes .await just hangs forever.

[Darksonn]

This kind of question is usually because you aren't actually sending any message on the channel. You should double-check that the message is being sent. For example, did you forget to call the function with the send?

However, you are linking to a discussion about cooperative scheduling. That can only be the cause in one situation: You are using block_on inside the asynchronous context. Another very similar possibility is that another task is blocking the thread. To investigate those things, I recommend the use of tokio-console. If any tasks shows up as being busy all the time, then that may be the cause.