“AsyncFuture ”还是什么？在后台线程中获得的Future - 它是一个模式吗？

I'd like to have some work done in a background thread as simple as creating a Future var for it and then asking later for the calculated value.

我想在后台线程中完成一些工作,就像为它创建Future var然后稍后询问计算值一样。

In pseudo-C#-code:

AsyncFuture<int> asyncFuture = new AsyncFuture<int>(FuncToCalculateValue);

//do some other work, or draw UI

if(asyncFuture.NoErrorsHappened){
   int realResult = asyncResult.Value;
}

I can implement such type by my own, but my question is: isn't that some kind of a known pattern? Is there maybe a name for it, or maybe even a framework implementation? Probably in .NET 4.0?

我可以自己实现这种类型,但我的问题是:是不是某种已知的模式?是否有它的名称,甚至可能是框架实现?可能在.NET 4.0中?

And if it is a pattern, what are the pitfalls associated with it?

如果是一种模式,与之相关的陷阱是什么?

3 个解决方案

#1

Yacoder, I really like Ayende's two Future implementations. There is some good discussion from Jon Skeet in the comments on the cons.

Yacoder,我真的很喜欢Ayende的两个Future实现。 Jon Skeet在关于缺点的评论中有一些很好的讨论。

#2

Yes, Futures are part of the Task Parallel Library which will be in .NET 4.0.

是的,Futures是任务并行库的一部分,它将在.NET 4.0中。

In .NET 4.0 Beta 1, it looks like this exists as a Task<TResult>.

在.NET 4.0 Beta 1中,它看起来像Task 。

#3

also in Java the structure of the code using Future is very similar.

同样在Java中使用Future的代码结构非常相似。

You may be move the "do some other work or draw UI" as a parametric code? This can be viewed as a Template Method.

您可能会将“做其他工作或绘制UI”作为参数代码移动吗?这可以视为模板方法。

#1