How to Cancel Running Task?

[Beormund]

I have a a blink task which repeatedly blinks using a while loop. I would like to cancel the task once wifi has connected. I couldn't work out how to cancel the running task (other than setting a global static variable from the wifi task and then testing this variable from within the blink while loop). Could you please give an example of how to safely cancel a running task? Many Thanks.

[FunMiles]

Sorry I've been away for so long.
There are several ways to understand "cancel a running task" in this context:

• Exiting the task
• Suspending the task's coroutine and destroying its frame.

In either case, the task itself needs to check if it is canceled or suspended.
Perhaps for the case you are mentioning, you want to blink whenever the WiFi has no connection? Then I would use a co_await not_connected(); in the blink loop. When there is no connection, it would then return immediately and the blink would go on. When there is a connection, the blink coroutine would be suspended and its handle saved. The wifi task could then resume it when connection is lost.