Is there any way to force quit spawned async task using async-std? I spawn a task as let handle = task::spawn(...); and then I need to restart the whole app so I was thinking about calling something like handle.kill(); and then do the respawn. Example: #[async_std::main] async fn main() -> Result<(…

I was thinking something like this: #[async_std::main] async fn main() -> Result<(), std::io::Error> { ... let mut ping; // because we could get multiple START messages before a RESTART, handles // for all spawned task are stored here. let mut abort_handles = Vec::new(); while le…

You will need the spawned task to cooperate, e.g. by it listening to some outside messages. The crate stop-token implements such a pattern for cooperative cancellation.

@jer thanks for your answer. I saw that project before but it seems to me that the task will not force quit the async tree. So let say I have TcpListenere ... will it be force dropped (like using libc) as soon as the token is stopped? I need to basically remove everything from ram and recursively re…

Could you use the futures::future::Abortable wrapper from the futures crate to kill the spawned task? For example, spawning task::spawn(Abortable::new(my_important_task, abort_registration)) and then calling AbortHandle::abort() when you get a "RESTART" message. With the entire thing in one loop {} …

@Michael-F-Bryan I'm trying to make it work in a loop but I get use of moved value. Any ideas?

Ha ... you did it :). In the background, I started writing my own Future implementation :). No need for that now. Thanks!

Force quit spawned async task

help

xpepermint May 3, 2020, 12:34pm 6

@Michael-F-Bryan OK, I have a working example for Abortable::new(task::spawn(...)) and the task is not canceled.

How to make an abortable async background task with actix?

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Force quit spawned async task

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