我需要一个列表上的锁？ C＃ [英] Do i need a lock on a list? C#

问题描述

我用默认值填充了几个列表<>，将它们粘贴到一个结构体中，然后将结构体传递到多个线程中。每个线程有不同的范围，所以线程1将访问列表[0到199]线程2将访问[200 - 400]等。我需要一个锁吗？和什么时候我需要它？我可以访问该列表与我的多个线程w / o使用锁。但是如果我的主线程想要读取列表中的数据（从不写），我需要一个锁吗？

I filled several list<> with default values, stuck them into a struct then pass the struct into several threads. Each thread has a different range so thread 1 would access list[0 to 199] thread 2 would access [200 - 400] etc. Would i need a lock? and when do i need it? i can access the list with my multiple threads w/o using a lock. But if my main thread wants to read the data in the list (never write) do i need a lock for that? i'm sure i dont but i would like to ask before implementation.

-edit -

-edit-

谢谢你们，你回答了我的问题。 （我会稍后接受一个人，只要有人不反对当前的答案）

Thanks guys, you answered my question. (I will accept one later as long as someone doesnt disprove current answers)

推荐答案

如果你不修改集合，

如果要使用其中一个线程修改集合，您可能需要查看ReaderWriterLock 。

If you want to modify the collection with one of the threads, you might want to look at the ReaderWriterLock.

彼得的评论是值得注意的中。正如上面的MSDN链接所指出的，您应该考虑使用 ReaderWriterLockSlim 类if你在.NET 3.5。这个想法是一样的。

Peter's comment is a notable one. As also noted by the MSDN link above, you should consider using ReaderWriterLockSlim class if you're on .NET 3.5. The idea is the same, nevertheless.

这篇关于我需要一个列表上的锁？ C＃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！