public void Cancel()
{
CompletionSource?.TrySetCanceled();
_cts?.Cancel();
IsCancelled = true;
_completedHandler?.Invoke(this, Status);
}
/// <summary>
/// Awaits a task execution on the specified scheduler, providing the result.
/// </summary>
/// <returns>A task that will provide the result of the execution.</returns>
public static Task <T> Run <T>(this IScheduler source, Func <CancellationToken, Task <T> > taskBuilder, CancellationToken cancellationToken)
{
var completion = new FastTaskCompletionSource <T>();
var disposable = new SingleAssignmentDisposable();
var ctr = default(CancellationTokenRegistration);
if (cancellationToken.CanBeCanceled)
{
ctr = cancellationToken.Register(() =>
{
completion.TrySetCanceled();
disposable.Dispose();
});
}
disposable.Disposable = source.Schedule(
async() =>
{
try
{
var result = await taskBuilder(cancellationToken);
completion.TrySetResult(result);
}
catch (Exception e)
{
completion.TrySetException(e);
}
finally
{
ctr.Dispose();
}
}
);
return(completion.Task);
}
public void Canceled() => _task.TrySetCanceled();
public void Abort() => _task.TrySetCanceled();
