锁定属性，好的方法? [英] Lock in properties, good approach?

问题描述

在我的多线程应用程序中，我正在使用一些变量，可以同时在许多实例中进行更改.这很奇怪，但是它工作正常，没有任何问题..但是我当然需要使其成为线程安全的.我只是从锁开始，所以我会很感激您的建议:

In my multithreading application I am using some variables that can be altered by many instances in the same time. It is weird but it has worked fine without any problem..but of course I need to make it thread-safe. I am just beginning with locks so I would appretiate your advice:

当客户端连接时，将创建客户端类，其中每个客户端都有其自己的"A"变量.

When client connects, class Client is created where each Client has its own "A" variable.

有时候，客户端调用这样的方法:

Sometimes, Client calls method like that:

Client selectedClient SelectOtherClientClassByID(sentID);

selectedClient.A=5;

到目前为止，即使在同时执行5个类(线程池)的情况下也没有问题，但是我在考虑向A属性添加锁该怎么办?

No problems until now with that even when 5 classes were doing at the same time (threadpool), but I was thinking what about adding locks to A properties?

赞:

A {
    get { return mA; }
    set {
        // use lock here for settting A to some value
    }    
}

可以吗?

推荐答案

您需要同时在get和set中使用锁.此锁必须是同一对象.例如:

You need to use locks in BOTH get and set. This lock must be the same object. For example:

private object mylock = new object();

public int A {

  get {
    int result;
    lock(mylock) {
    result = mA; 
    }
    return result;
  } 

  set { 
     lock(mylock) { 
        mA = value; 
     }
  }
}

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