protected virtual void CancelCompletionSourceIfNecessary()
{
var task = CompletionSource?.Task;
if (task == null || task.IsFaulted || task.IsCompleted || task.IsCanceled)
{
return;
}
CompletionSource.SetCanceled();
}
/// <summary>
/// Marks the <see cref="Task{TResult}"/> that invocations will receive as canceled.
/// </summary>
public void SetCanceled() => CompletionSource.SetCanceled();