Task.Abort()

[Per6]

I am using Tasks and IAsyncEnumerables for pretty much everything, so i can't abort the task without passing a CancellationTokenSource into every part of my code. at the moment my task just stays in memory forever waiting for a TaskCompletionSource i know will never be set, but i have a lot of those, so cancelling all of them wouldn't be the best solution. an Abort or at least a TryAbort function would make this way easier.

[colejohnson66]

See #115547. Thread aborts (and by extension task aborts) will never be supported again in dotnet. They are horribly unsafe and a crutch for bad code.

[huoyaoyuan]

Moreover, it's much more incorrect to use Thread.Abort with Task. Tasks are scheduled among multiple threads from the pool, aborting any single thread is incorrect.

[Clockwork-Muse]

As a side answer - note that often what happens for this sort of code is you'll end up with a "root" token source and then link other token sources, for supporting things like mass cancellation (eg, used for graceful shutdown when you close an application).

[Per6]

what i ended up doing is to group my TaskCompletionSources and then cancel all waiting ones of the specified group