ProcessMessageWithTask()

void System.Threading.Tasks.Dataflow.TransformBlock< TInput, TOutput >.ProcessMessageWithTask ( Func< TInput, Task< TOutput > > transform, KeyValuePair< TInput, long > messageWithId )

inlineprivate

Definition at line 208 of file TransformBlock.cs.

    {
        Task<TOutput> task = null;
        Exception ex = null;
        try
        {
            task = transform(messageWithId.Key);
        }
        catch (Exception ex2)
        {
            ex = ex2;
        }
        if (task == null)
        {
            if (ex != null && !Common.IsCooperativeCancellation(ex))
            {
                Common.StoreDataflowMessageValueIntoExceptionData(ex, messageWithId.Key);
                _target.Complete(ex, dropPendingMessages: true, storeExceptionEvenIfAlreadyCompleting: true);
            }
            if (_reorderingBuffer != null)
            {
                _reorderingBuffer.IgnoreItem(messageWithId.Value);
            }
            _target.SignalOneAsyncMessageCompleted(-1);
        }
        else
        {
            task.ContinueWith(delegate(Task<TOutput> completed, object state)
            {
                Tuple<TransformBlock<TInput, TOutput>, KeyValuePair<TInput, long>> tuple = (Tuple<TransformBlock<TInput, TOutput>, KeyValuePair<TInput, long>>)state;
                tuple.Item1.AsyncCompleteProcessMessageWithTask(completed, tuple.Item2);
            }, Tuple.Create(this, messageWithId), CancellationToken.None, Common.GetContinuationOptions(TaskContinuationOptions.ExecuteSynchronously), TaskScheduler.Default);
        }
    }

References System.Threading.Tasks.Dataflow.TransformBlock< TInput, TOutput >._reorderingBuffer, System.Threading.Tasks.Dataflow.TransformBlock< TInput, TOutput >._target, System.Threading.Tasks.TaskScheduler.Default, System.Threading.Tasks.Dataflow.Internal.Common.GetContinuationOptions(), System.Threading.Tasks.Dataflow.Internal.Common.IsCooperativeCancellation(), System.Threading.CancellationToken.None, System.state, and System.task.