Monitor线程同步

   最近在园子里看到有关monitor实现线程同步的文章，正好最近的项目中要用到并发控制，所以就抽时间学习了一下monitor，之前都是不怎么写博客的，呵呵感觉花了时间去学习它，还是记下来比较好。。monitor我理解为是一个监视器，用来监视临界区域的信号量。学过操作系统的童鞋都应该知道这个概念哈～因为要通过信号量，所以要定义一个信号量，这里我们通常定义一个object类型的变量，注意这个变量一定要是一个公共的，并且是全局的，千万不能定义在临界区内～～～

   

class MonitorTest
    {
        MyServer.MyServerClient wcf = new MyServer.MyServerClient();
        IMyServer ichan = null;
        ChannelFactory<IMyServer> cha = new ChannelFactory<IMyServer>("BasicHttpBinding_IMyServer");
        object monitor = new object();
        public static int iCount = 0;
        public  MonitorTest()
        {
            cha.Open();
            ichan = cha.CreateChannel();
            wcf.CalculateCompleted += new EventHandler<MyServer.CalculateCompletedEventArgs>(wcf_CalculateCompleted);
        }

        void wcf_CalculateCompleted(object sender, MyServer.CalculateCompletedEventArgs e)
        {
            Console.WriteLine("我是线程{0}   "+"iCount的值为{1}",Thread.CurrentThread.Name,e.Result.ToString());
        }

        public void Test()
        {
            Thread t1 = new Thread(Test1);
            t1.Name = "t1";
            
            Thread t2 = new Thread(Test2);
            t2.Name = "t2";

           t1.Start();
           t2.Start();

        }
        public void Test1()
        {
           
            for (int i = 0; i < 10; i++)
            {
                iCount++;
                Console.WriteLine("我是线程{0}   " + "iCount的值为{1}", Thread.CurrentThread.Name, iCount);
            }
        }
        public void Test2()
        {
            for (int i = 0; i < 10; i++)
            {
                iCount--;
                Console.WriteLine("我是线程{0}   " + "iCount的值为{1}", Thread.CurrentThread.Name, iCount);
            }
        }
    }

　　本来想通过控制台项目添加wcf引用的，可是不知道为什么在调用服务了，没有任何反应，用fiddler工具也没有检测到任何的信息，所以，无奈之下，只好调用本地的方法，以后再研究研究。上面是没有加锁控制的，可以看到结果很混乱，谁抢到了谁就用。。显然不行。

　　　下面是加锁之后的效果：

　　　　

class MonitorTest
    {
        MyServer.MyServerClient wcf = new MyServer.MyServerClient();
        IMyServer ichan = null;
        ChannelFactory<IMyServer> cha = new ChannelFactory<IMyServer>("BasicHttpBinding_IMyServer");
        object monitor = new object();
        public static int iCount = 0;
        public  MonitorTest()
        {
            cha.Open();
            ichan = cha.CreateChannel();
            wcf.CalculateCompleted += new EventHandler<MyServer.CalculateCompletedEventArgs>(wcf_CalculateCompleted);
        }

        void wcf_CalculateCompleted(object sender, MyServer.CalculateCompletedEventArgs e)
        {
            Console.WriteLine("我是线程{0}   "+"iCount的值为{1}",Thread.CurrentThread.Name,e.Result.ToString());
        }

        public void Test()
        {
            Thread t1 = new Thread(Test1);
            t1.Name = "t1";
            
            Thread t2 = new Thread(Test2);
            t2.Name = "t2";

           t1.Start();
           t2.Start();

        }
        public void Test1()
        {

            lock (monitor)
            {
                Monitor.Pulse(monitor);
                for (int i = 0; i < 10; i++)
                {
                    iCount++;
                    Console.WriteLine("我是线程{0}   " + "iCount的值为{1}", Thread.CurrentThread.Name, iCount);
                }
                Monitor.Wait(monitor);

            }
        }
        public void Test2()
        {
            lock (monitor)
            {
                Monitor.Pulse(monitor);
                for (int i = 0; i < 10; i++)
                {
                    iCount--;
                    Console.WriteLine("我是线程{0}   " + "iCount的值为{1}", Thread.CurrentThread.Name, iCount);
                }
                Monitor.Wait(monitor);
            }
        }
    }