Await_kernelSourceA trigger represents the ability to await for or react to a signal.
A cancellation token represents an explicit, expected, and voluntary submission or desire to be interrupted asynchronously.
A termination token represents an implicit and unexpected interrupt request to be used in case of panics.
Result of a cancellable operation that is either Completed _ or Canceled.
Result of a try-lock operation that is either Acquired _ or Would_block.