线程----Monitor类设置超时值

Monitor类与Lock语句相比，Monitor类的主要优点是：可以添加一个等待被锁定的超时值。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;
namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            ShareClass sc = new ShareClass();
            Job j=new Job (sc);
            Task[] ts=new  Task[20];
            for (int i = 0; i < 20; i++)
            {
                ts[i] = new Task(j.TheDoJob2);
                ts[i].Start();
            }
            for (int i = 0; i < 20; i++)
            {
                ts[i].Wait();
            }
            Console.WriteLine(sc.state);
            Console.ReadKey();
        }
     
    }
    class ShareClass
    {
        public int state { get; set; }
    }
    class Job
    {
        ShareClass sc { get; set; }
        private object obj = new object();
        public Job(ShareClass s)
        {
            sc = s;
        }
        //==========普通的Monitor类
        public void TheDoJob()
        {
            //锁定
            Monitor.Enter(obj);
            try
            {
                for (int i = 0; i < 10000; i++)
                {
                    sc.state++;
                }
            }
            catch { }
            finally
            {
                //如果抛出异常也会就出锁
                //释放锁
                Monitor.Exit(obj); 
            }
        }
 
        //===========给Monitor类设置超时时间
        public void TheDoJob2()
        {
            bool yesno=false;
            //锁定
            Monitor.TryEnter(obj, 100, ref yesno);
            if (yesno)
            {
                for (int i = 0; i < 10000; i++)
                {
                    sc.state++;
                }
                Console.WriteLine("yes");
                //释放锁
                Monitor.Exit(obj);
            }
            else
            {
                //如果超时会执行下面代码
                Console.WriteLine("no");
            }
        }
    }
}

TheDoJob()

TheDoJob2()