Csharp/C Sharp/Thread/Thread Start Wait — различия между версиями

Материал из .Net Framework эксперт
Перейти к: навигация, поиск
м (1 версия)
 
(нет различий)

Текущая версия на 11:42, 26 мая 2010

Demonstates starting and waiting on a thread

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
// Thread.cs -- Demonstates starting and waiting on a thread
//
//              Compile this program with the following command line:
//                  C:>csc Thread.cs
using System;
using System.Windows.Forms;
using System.Threading;
namespace nsThreads
{
    public class ThreadDemo
    {
        static public void Main ()
        {
// Create the new thread object
            Thread NewThread = new Thread (new ThreadStart (RunThread));
// Show a message box.
            MessageBox.Show ("Click OK to start the thread", "Thread Start");
// Start the new thread.
            NewThread.Start ();
// Inform everybody that the main thread is waiting
            Console.WriteLine ("Waiting . . .");
// Wait for NewThread to terminate.
            NewThread.Join ();
// And it"s done.
            Console.WriteLine ("\r\nDone . . .");
        }
// Method to assign to the new thread as its start method
        static public void RunThread ()
        {
// Sleep for a second, print and message and repeat.
            for (int x = 5; x > 0; --x)
            {
                Thread.Sleep (1000);
                Console.Write ("Thread is running. {0} second{1}  \r",
                               x, x > 1 ? "s" : "");
            }
// The thread will terminate at this point. It will not return to
// the method that started it.
        }
    }
}


Thread Sample

/*
C# Network Programming 
by Richard Blum
Publisher: Sybex 
ISBN: 0782141765
*/
using System;
using System.Threading;
public class ThreadSample
{
   public static void Main()
   {
      ThreadSample ts = new ThreadSample();
   }
   public ThreadSample()
   {
      int i;
      Thread newCounter = new Thread(new ThreadStart(Counter));
      Thread newCounter2 = new Thread(new ThreadStart(Counter2));
      newCounter.Start();
      newCounter2.Start();
      for(i = 0; i < 10; i++)
      {
         Console.WriteLine("main: {0}", i);
         Thread.Sleep(1000);
      }
   }
   void Counter()
   {
      int i;
      for (i = 0; i < 10; i++)
      {
         Console.WriteLine("  thread: {0}", i);
         Thread.Sleep(2000);
      }
   }
   void Counter2()
   {
      int i;
      for (i = 0; i < 10; i++)
      {
         Console.WriteLine("    thread2: {0}", i);
         Thread.Sleep(3000);
      }
   }
}


Threads:Waiting with WaitHandle

using System;
using System.Threading;
class ThreadSleeper
{
    int seconds;
    AutoResetEvent napDone = new AutoResetEvent(false);
    
    private ThreadSleeper(int seconds)
    {
        this.seconds = seconds; 
    }
    
    public void Nap()
    {
        Console.WriteLine("Napping {0} seconds", seconds);
        Thread.Sleep(seconds * 1000);
        Console.WriteLine("{0} second nap finished", seconds);
        napDone.Set();
    }
    
    public static WaitHandle DoSleep(int seconds)
    {
        ThreadSleeper ts = new ThreadSleeper(seconds);
        Thread thread = new Thread(new ThreadStart(ts.Nap));
        thread.Start();
        return(ts.napDone);
    }
}
public class OperationsThreadsWaitingwithWaitHandle
{
    public static void Main()
    {
        WaitHandle[] waits = new WaitHandle[2];
        waits[0] = ThreadSleeper.DoSleep(8);
        waits[1] = ThreadSleeper.DoSleep(4);
        
        Console.WriteLine("Waiting for threads to finish");
        WaitHandle.WaitAll(waits);
        Console.WriteLine("Threads finished");
    }
}