![](/img/trans.png)
[英]TPL Dataflow, how to forward items to only one specific target block among many linked target blocks?
[英]How do I link multiple target blocks with a source block in TPL Dataflow?
我預計以下內容會從兩個發布者中產生 output,但它只從第一個發布者中產生 output:
var broadcastBlock = new BroadcastBlock<int>(null);
var transformBlock = new TransformBlock<int, int>(i => i*10);
var publish1 = new ActionBlock<int>(i => Console.WriteLine("Publisher 1:" + i));
var publish2 = new ActionBlock<int>(i => Console.WriteLine("Publisher 2:" + i));
broadcastBlock.LinkTo(transformBlock, new DataflowLinkOptions() { PropagateCompletion = true });
transformBlock.LinkTo(publish1, new DataflowLinkOptions() { PropagateCompletion = true });
transformBlock.LinkTo(publish2, new DataflowLinkOptions() { PropagateCompletion = true });
foreach (var i in Enumerable.Range(0, 5))
{
broadcastBlock.Post(i);
}
broadcastBlock.Complete();
Task.WhenAll(publish1.Completion, publish2.Completion).Wait();
我顯然在這里缺少一些基本的東西,有什么想法嗎?
您正在將2個ActionBlock
鏈接到單個TransformBlock
。 您應該將2個ActionBlock
鏈接到BrodcastBlock
並將BroadcastBlock
鏈接到TransformBlock
。
你有什么:
BroadCast => Transfrom => ActionBlock
=> ActionBlock
你需要什么:
Transfrom => BroadCast => ActionBlock
=> ActionBlock
我不能在上面發表評論,但我認為我在 BroadcastBlock 上的發現對某人有用:
編輯:注意到我的第二條評論與 OP 無關,因為他們是如何構建它的,但是我遇到了一些事情,因為我的 SourceBlock 被填充在一個任務中。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.