你将如何简化了进入和退出ReaderWriterLock？

问题描述

这似乎很嘈杂的我。五大行的开销实在太多了。

This seems very noisy to me. Five lines of overhead is just too much.

m_Lock.EnterReadLock()
Try
    Return m_List.Count
Finally
    m_Lock.ExitReadLock()
End Try

所以，你会怎么简单吗？

So how would you simply this?

推荐答案

我的想法一样，但在C＃;-p

I was thinking the same, but in C# ;-p

using System;
using System.Threading;

class Program
{
    static void Main()
    {
        ReaderWriterLockSlim sync = new ReaderWriterLockSlim();

        using (sync.Read())
        {
           // etc
        }
    }


}
public static class ReaderWriterExt
{
    sealed class ReadLockToken : IDisposable
    {
        private ReaderWriterLockSlim sync;
        public ReadLockToken(ReaderWriterLockSlim sync)
        {
            this.sync = sync;
            sync.EnterReadLock();
        }
        public void Dispose()
        {
            if (sync != null)
            {
                sync.ExitReadLock();
                sync = null;
            }
        }
    }
    public static IDisposable Read(this ReaderWriterLockSlim obj)
    {
        return new ReadLockToken(obj);
    }
}

这篇关于你将如何简化了进入和退出ReaderWriterLock？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！