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  • c# 多线程 读写分离

    class Program
        {
            private static ReaderWriterLockSlim _LockSlim = new ReaderWriterLockSlim();
            private static Hashtable list = Hashtable.Synchronized(new Hashtable());
    
            static void Main(string[] args)
            {
                new Thread(new ParameterizedThreadStart(delegate(object obj) {
                    Write(0, 10000);
                })).Start();
    
                Thread.Sleep(1000);
    
                new Thread(new ParameterizedThreadStart(delegate(object obj)
                {
                    Read(1, 1000);
                })).Start();
    
                new Thread(new ParameterizedThreadStart(delegate(object obj)
                {
                    Read(2, 1000);
                })).Start();
    
                new Thread(new ParameterizedThreadStart(delegate(object obj)
                {
                    Read(3, 1000);
                })).Start();
    
                new Thread(new ParameterizedThreadStart(delegate(object obj)
                {
                    Read(4, 1000);
                })).Start();
    
                Console.ReadKey();
            }
    
            /// <summary>
            /// 对于i相同的线程进行阻塞保证不会并行多个
            /// </summary>
            /// <param name="i"></param>
            /// <param name="j"></param>
            public static void Read(int i,int j)
            {
                Console.WriteLine(DateTime.Now.ToString() + "	线程" + i.ToString() + "即将进入读取状态");
                _LockSlim.EnterReadLock();
                Console.WriteLine(DateTime.Now.ToString() + "	线程" + i.ToString() + "进入读取状态");
                
                Thread.Sleep(j);
    
                _LockSlim.ExitReadLock();
                Console.WriteLine(DateTime.Now.ToString() + "	线程" + i.ToString() + "退出读取状态");
            }
    
            public static void Write(int i, int j)
            {
                Console.WriteLine(DateTime.Now.ToString() + "	线程" + i.ToString() + "即将进入写入状态");
                _LockSlim.EnterWriteLock();
                Console.WriteLine(DateTime.Now.ToString() + "	线程" + i.ToString() + "进入写入状态");
    
                Thread.Sleep(j);
    
                _LockSlim.ExitWriteLock();
                Console.WriteLine(DateTime.Now.ToString() + "	线程" + i.ToString() + "退出写入状态");
            }
    
    
        }

    输出:

    2017/2/20 17:51:55      线程0即将进入写入状态
    2017/2/20 17:51:55      线程0进入写入状态
    2017/2/20 17:51:56      线程1即将进入读取状态
    2017/2/20 17:51:56      线程2即将进入读取状态
    2017/2/20 17:51:56      线程3即将进入读取状态
    2017/2/20 17:51:56      线程4即将进入读取状态
    2017/2/20 17:52:05      线程1进入读取状态
    2017/2/20 17:52:05      线程4进入读取状态
    2017/2/20 17:52:05      线程0退出写入状态
    2017/2/20 17:52:05      线程2进入读取状态
    2017/2/20 17:52:05      线程3进入读取状态
    2017/2/20 17:52:06      线程2退出读取状态
    2017/2/20 17:52:06      线程1退出读取状态
    2017/2/20 17:52:06      线程4退出读取状态
    2017/2/20 17:52:06      线程3退出读取状态
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  • 原文地址:https://www.cnblogs.com/nanfei/p/6420681.html
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