タスク使用履歴

  
  
  
  

   
   
   
   
using System;  
   
   
   
   
using System.Collections.Generic;  
   
   
   
   
using System.Linq;  
   
   
   
   
using System.Text;  
   
   
   
   
 
   
   
   
   
using System.Threading.Tasks;  
   
   
   
   
using System.Threading;  
   
   
   
   
 
   
   
   
   
namespace TaskDemo  
   
   
   
   
{  
   
   
   
   
    class Program  
   
   
   
   
    {  
   
   
   
   
        static void Main(string[] args)  
   
   
   
   
        {  
   
   
   
   
            try 
   
   
   
   
            {  
   
   
   
   
                int mCount = 0;  
   
   
   
   
 
   
   
   
   
                CancellationTokenSource tokenSource = new CancellationTokenSource();  
   
   
   
   
                CancellationToken token = tokenSource.Token;  
   
   
   
   
 
   
   
   
   
                Task t = new Task(() =>  
   
   
   
   
                {  
   
   
   
   
                    Thread.Sleep(1000);  
   
   
   
   
                    Console.WriteLine("      ……");  
   
   
   
   
                    //           
   
   
   
   
                    for (int i = 0; i < 3000; i++)  
   
   
   
   
                    {  
   
   
   
   
                        if (token.IsCancellationRequested == true)  
   
   
   
   
                        {  
   
   
   
   
                            break;          //        throw new OperationCanceledException(token);           
   
   
   
   
                        }  
   
   
   
   
                        mCount++;  
   
   
   
   
                        Thread.Sleep(1);   
   
   
   
   
                    }  
   
   
   
   
                }, token);  
   
   
   
   
                token.Register(() =>  
   
   
   
   
               {      
   
   
   
   
 
   
   
   
   
                   Console.WriteLine("Canceled");  
   
   
   
   
 
   
   
   
   
               });  
   
   
   
   
                t.Start();  
   
   
   
   
                Console.WriteLine("          ……");  
   
   
   
   
                t.ContinueWith((task) =>  
   
   
   
   
                {  
   
   
   
   
                    Console.WriteLine("    ，        ：");  
   
   
   
   
                    Console.WriteLine("IsCanceled={0}\tIsCompleted={1}\tIsFaulted={2}\tmCount={3}", task.IsCanceled, task.IsCompleted, task.IsFaulted, mCount);  
   
   
   
   
                });  
   
   
   
   
                Console.WriteLine("         ，      ……");  
   
   
   
   
                Console.ReadKey();      //    sleep     ，             ，            
   
   
   
   
                tokenSource.Cancel();  
   
   
   
   
                Console.ReadKey();      //      
   
   
   
   
 
   
   
   
   
            }  
   
   
   
   
            catch (Exception Ex)  
   
   
   
   
            {  
   
   
   
   
                Console.WriteLine(Ex.Message);  
   
   
   
   
            }  
   
   
   
   
 
   
   
   
   
        }  
   
   
   
   
    }  
   
   
   
   
}