加入收藏 | 设为首页 | 会员中心 | 我要投稿 李大同 (https://www.lidatong.com.cn/)- 科技、建站、经验、云计算、5G、大数据,站长网!
当前位置: 首页 > 百科 > 正文

c# – 我如何用缓存键锁定?

发布时间:2020-12-15 03:46:03 所属栏目:百科 来源:网络整理
导读:我试图实现一个通用的线程安全的Cache方法,我想知道我应该如何实现它的锁. 它应该看起来像这样: //private static readonly lockObject = new Object();public T GetCacheT(string key,FuncT valueFactory...){ // try to pull from cache here lock (lockO
我试图实现一个通用的线程安全的Cache方法,我想知道我应该如何实现它的锁.

它应该看起来像这样:

//private static readonly lockObject = new Object();

public T GetCache<T>(string key,Func<T> valueFactory...)
{

  // try to pull from cache here

  lock (lockObject) // I don't want to use static object lock here because then every time a lock is performed,all cached objects in my site have to wait,regarding of the cache key.
  {
    // cache was empty before we got the lock,check again inside the lock

    // cache is still empty,so retreive the value here

    // store the value in the cache here
  }

  // return the cached value here

}

有什么建议么?
谢谢,
阿米尔.

解决方法

这是您使用 mutex的情况
public T GetCache<T>(string key,Func<T> valueFactory...) 
{
    // note here that I use the key as the name of the mutex
    // also here you need to check that the key have no invalid charater
    //   to used as mutex name.
    var mut = new Mutex(true,key);

    try
    {   
        // Wait until it is safe to enter.
        mut.WaitOne();

        // here you create your cache
    }
    finally
    {
        // Release the Mutex.
        mut.ReleaseMutex();
    }   
}

(编辑:李大同)

【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容!

    推荐文章
      热点阅读