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Comment by CharlieDigital

4 hours ago

    > ...constantly manage the lifecycle of cancellation sources

Very rare unless you are spawning your own.

Usually, you are passing through a runtime provided token (e.g. ASP.NET).

Not that rare in my experience, I constantly had to write software like this. Not every day, but it certainly did come up quite often in my code and others'

Oh and oone more thing - the very (developer-managed) complexity makes it that people constantly got it wrong, usually just enough (as often with the case of threading) that it worked fine 90% of the time, and was very hard to make a case to management why we should invest effort into fixing it.