public WriteOnceBlock(Func <T, T> cloningFunction,
DataflowBlockOptions dataflowBlockOptions)
{
if (dataflowBlockOptions == null)
{
throw new ArgumentNullException("dataflowBlockOptions");
}
this.cloningFunction = cloningFunction;
this.dataflowBlockOptions = dataflowBlockOptions;
this.compHelper = CompletionHelper.GetNew(dataflowBlockOptions);
this.messageBox = new PassingMessageBox <T> (this, messageQueue, compHelper,
() => true, _ => BroadcastProcess(), dataflowBlockOptions,
canAccept: () => written.TrySet());
this.outgoing = new BroadcastOutgoingQueue <T> (this, compHelper,
() => messageQueue.IsCompleted, messageBox.DecreaseCount,
dataflowBlockOptions, cloningFunction != null);
}
