C# AutoResetEvent类代码示例

	public void TestWaitOneMultiThreaded()
	{
		bool x;
		Thread thread1;

		if (!TestThread.IsThreadingSupported)
		{
			return;
		}

		e1 = new AutoResetEvent(false);

		x = e1.WaitOne(10,false);

		AssertEquals("WaitOne(unset)", x, false);

		thread1 = new Thread(new ThreadStart(SetE1));
		
		thread1.Start();

		x = e1.WaitOne(4000, false);

		AssertEquals("WaitOne(set)", x, true);

		// It should be reset now.

		x = e1.WaitOne(10, false);

		AssertEquals("WaitOne(set)", x, false);
	}

	static int Main ()
	{
		receivedMsg = new AutoResetEvent (false);

		HttpChannel channel = new HttpChannel (0);
#if NET_2_0
		ChannelServices.RegisterChannel (channel, false);
#else
		ChannelServices.RegisterChannel (channel);
#endif

		ServerTalk _ServerTalk = (ServerTalk) Activator.GetObject (typeof (ServerTalk), "http://localhost:8081/hydraplus.soap");

		CallbackSink _CallbackSink = new CallbackSink ();
		_CallbackSink.OnHostToClient += new delCommsInfo (CallbackSink_OnHostToClient);

		_ServerTalk.RegisterHostToClient ("Me", 0, new delCommsInfo (_CallbackSink.HandleToClient));

		string messageSent = Guid.NewGuid ().ToString ();

		_ServerTalk.SendMessageToServer (new CommsInfo ("Me", "txt", messageSent));

		if (receivedMsg.WaitOne (5000, false)) {
			Assert.AreEqual (messageReceived, messageSent, "#1");
			return 0;
		} else {
			return 1;
		}
	}

    private void DownloadWebpage()
    {
        string URL = TextBox1.Text;

        AutoResetEvent resultEvent = new AutoResetEvent(false);
        string result = null;

        bool visible = this.Checkbox1.Checked;

        IEBrowser browser = new IEBrowser(visible, URL, resultEvent);

        // wait for the third thread getting result and setting result event
        EventWaitHandle.WaitAll(new AutoResetEvent[] { resultEvent });
        // the result is ready later than the result event setting sometimes
        while (browser == null || browser.HtmlResult == null) Thread.Sleep(5);

        result = browser.HtmlResult;

        if (!visible) browser.Dispose();

        //把获取的html内容通过label显示出来
        Label2.Text = result;

        //保存结果到本程序的目录中
        string path = Request.PhysicalApplicationPath;
        TextWriter tw = new StreamWriter(path + @"softlab/result.html");
        tw.Write(result);
        tw.Close();

        //open a new web page to display result got from webbrowser.
        Response.Output.WriteLine("<script>window.open ('result.html','mywindow','location=1,status=0,scrollbars=1,resizable=1,width=600,height=600');</script>");
    }

    static void Main()
        {
            // Create an event to signal the timeout count threshold in the 
            // timer callback.
            AutoResetEvent autoEvent     = new AutoResetEvent(false);

            StatusChecker  statusChecker = new StatusChecker(10);

            // Create an inferred delegate that invokes methods for the timer.
            TimerCallback tcb = statusChecker.CheckStatus;

            // Create a timer that signals the delegate to invoke  
            // CheckStatus after one second, and every 1/4 second  
            // thereafter.
            Console.WriteLine("{0} Creating timer.\n", 
                              DateTime.Now.ToString("h:mm:ss.fff"));
            Timer stateTimer = new Timer(tcb, autoEvent, 1000, 250);

            // When autoEvent signals, change the period to every 
            // 1/2 second.
            autoEvent.WaitOne(5000, false);
            stateTimer.Change(0, 500);
            Console.WriteLine("\nChanging period.\n");

            // When autoEvent signals the second time, dispose of  
            // the timer.
            autoEvent.WaitOne(5000, false);
            stateTimer.Dispose();
            Console.WriteLine("\nDestroying timer.");
        }

		// Initialize Parallel class's instance creating required number of threads
		// and synchronization objects
		private void Initialize( )
		{
			threadsCount = System.Environment.ProcessorCount;
			
			//No point starting new threads for a single core computer
			if (threadsCount <= 1) {
				return;
			}
			
			// array of events, which signal about available job
			jobAvailable = new AutoResetEvent[threadsCount];
			// array of events, which signal about available thread
			threadIdle = new ManualResetEvent[threadsCount];
			// array of threads
			threads = new Thread[threadsCount];
		
			for ( int i = 0; i < threadsCount; i++ )
			{
				jobAvailable[i] = new AutoResetEvent( false );
				threadIdle[i]   = new ManualResetEvent( true );
		
				threads[i] = new Thread( new ParameterizedThreadStart( WorkerThread ) );
				threads[i].IsBackground = false;
				threads[i].Start( i );
			}
		}

    public bool PosTest1()
    {
        bool           retVal = true;
        AutoResetEvent are;

        TestLibrary.TestFramework.BeginScenario("PosTest1: AutoResetEvent.Set()");

        try
        {
            // false means that the initial state should be not signaled
            are = new AutoResetEvent(false);

            // set the signal
            if (!are.Set())
            {
                TestLibrary.TestFramework.LogError("001", "AutoResetEvent.Set() failed");
                retVal = false;
            }

            // verify that the autoreset event is signaled
            // if it is not signaled the following call will block for ever
            TestLibrary.TestFramework.LogInformation("Calling AutoResetEvent.WaitOne()... if the event is not signaled it will hang");
            are.WaitOne();

        }
        catch (Exception e)
        {
            TestLibrary.TestFramework.LogError("002", "Unexpected exception: " + e);
            retVal = false;
        }

        return retVal;
    }

	public int Run()
	{
		AutoResetEvent are = new AutoResetEvent(true);
		Stopwatch sw = new Stopwatch();		
		
		if(!are.WaitOne(0))//,false))
{
			Console.WriteLine("Signalled event should always return true on call to !are.WaitOne(0,false).");
			return -3;
		}
		
		sw.Start();
		bool ret = are.WaitOne(1000);//,false);
		sw.Stop();
		//We should never get signaled
		if(ret)
		{
			Console.WriteLine("AutoResetEvent should never be signalled.");
			return -1;
		}

		if(sw.ElapsedMilliseconds < 900)
		{
			Console.WriteLine("It should take at least 900 milliseconds to call bool ret = are.WaitOne(1000,false);.");
			Console.WriteLine("sw.ElapsedMilliseconds = " + sw.ElapsedMilliseconds);			
			return -2;
		}
		return 100;
		
	}

 public static int Main(String[] args)
   {
   Console.WriteLine("MutexSample.cs ...");
   gM1 = new Mutex(true,"MyMutex");			
   gM2 = new Mutex(true);						
   Console.WriteLine(" - Main Owns gM1 and gM2");
   AutoResetEvent[]	evs	= new AutoResetEvent[4];
   evs[0] = Event1;			
   evs[1] = Event2;			
   evs[2] = Event3;			
   evs[3] = Event4;			
   MutexSample			tm	= new MutexSample( );
   Thread				t1	= new Thread(new ThreadStart(tm.t1Start));
   Thread				t2	= new Thread(new ThreadStart(tm.t2Start));
   Thread				t3	= new Thread(new ThreadStart(tm.t3Start));
   Thread				t4	= new Thread(new ThreadStart(tm.t4Start));
   t1.Start( );				
   t2.Start( );				
   t3.Start( );				
   t4.Start( );				
   Thread.Sleep(2000);
   Console.WriteLine(" - Main releases gM1");
   gM1.ReleaseMutex( );		
   Thread.Sleep(1000);
   Console.WriteLine(" - Main releases gM2");
   gM2.ReleaseMutex( );		
   WaitHandle.WaitAll(evs);	
   Console.WriteLine("... MutexSample.cs");
   return 0;
   }

    public static void Main()
    {     	
    	e = new AutoResetEvent(false);

   	
        // Create the waiter thread's group
        Console.WriteLine("[  Main  ] - Creating first thread..");
        ThreadStart Thread_1 = new ThreadStart(ThreadMethod_waiter_1);
        ThreadStart Thread_2 = new ThreadStart(ThreadMethod_waiter_2);
        
        // Create the blocker thread
        Console.WriteLine("[  Main  ] - Creating second thread..");
        ThreadStart Thread_3 = new ThreadStart(ThreadMethod_blocker);

        Thread A = new Thread(Thread_1);
        Thread B = new Thread(Thread_2);
        Thread C = new Thread(Thread_3);
        
	A.Start();
    	B.Start();
    	C.Start();
    	
    	Thread.Sleep(500);
    	Console.WriteLine("[  Main  ] - Finish...");
    }

public static void Main()
{
AutoResetEvent auto = new AutoResetEvent(true);
bool state = auto.WaitOne(5000, true);
Console.WriteLine("After Frist Wait : " + state);
state  = auto.WaitOne(10000, true);
Console.WriteLine("After Second Wait : " + state);
}

        public void Ctor()
        {
            using (AutoResetEvent are = new AutoResetEvent(false))
                Assert.False(are.WaitOne(0));

            using (AutoResetEvent are = new AutoResetEvent(true))
                Assert.True(are.WaitOne(0));
        }

	static int Main ()
	{
		SoapServerFormatterSinkProvider serverFormatter = new SoapServerFormatterSinkProvider ();
		serverFormatter.TypeFilterLevel = TypeFilterLevel.Full;

		Hashtable ht = new Hashtable ();
		ht ["name"] = "hydraplus";
		ht ["port"] = 8081;
		ht ["authorizedGroup"] = "everyone";

		HttpChannel channel = new HttpChannel (ht, null, serverFormatter);
#if NET_2_0
		ChannelServices.RegisterChannel (channel, false);
#else
		ChannelServices.RegisterChannel (channel);
#endif

		WellKnownServiceTypeEntry entry = new WellKnownServiceTypeEntry (
			typeof (ServerTalk), "hydraplus.soap",
			WellKnownObjectMode.Singleton);
		RemotingConfiguration.RegisterWellKnownServiceType (entry);

		ServerTalk.NewUser = new delUserInfo (NewClient);
		ServerTalk.DelUser = new delRemoveUser (RemoveClient);
		ServerTalk.ClientToHost = new delCommsInfo (ClientToHost);

		clientConnected = new AutoResetEvent (false);
		clientDisconnected = new AutoResetEvent (false);

		// wait for client to connect
		if (!clientConnected.WaitOne (20000, false)) {
			ReportFailure ("No client connected in time.");
			return 1;
		}

		// wait for message to arrive
		while (true) {
			Thread.Sleep (50);
			if (ServerTalk.ClientToServerQueue.Count > 0) {
				CommsInfo info = (CommsInfo) ServerTalk.ClientToServerQueue.Dequeue ();
				ClientToHost (info);
				break;
			}
		}

		// send message to client
		ServerTalk.RaiseHostToClient (client.Id, "txt", receivedMsg);

		// wait for client to disconnect
		if (clientConnected.WaitOne (2000, false)) {
			ReportFailure ("Client did not disconnect in time.");
			return 2;
		}

		return 0;
	}

    private static void HandleCharacter(Match match, HttpListenerResponse response)
    {
        // here we are running in a thread different from the main thread
        int pid = Convert.ToInt32(match.Groups[1].Value);

        string responseString = "";

        // event used to wait the answer from the main thread.
        AutoResetEvent autoEvent = new AutoResetEvent(false);

        // var to store the character we are looking for
        Character character = null;
        // this bool is to check character is valid ... explanation below
        bool found = false;

        // we queue an 'action' to be executed in the main thread
        MainGameObject.QueueOnMainThread(()=>{
            // here we are in the main thread (see Update() in MainGameObject.cs)
            // retrieve the character
            character = MainGameObject.Instance().CharacterByID(pid);
            // if the character is null set found to false
            // have to do this because cannot call "character==null" elsewhere than the main thread
            // do not know why (yet?)
            // so if found this "trick"
            found = (character!=null?true:false);
            // set the event to "unlock" the thread
            autoEvent.Set();
        });

        // wait for the end of the 'action' executed in the main thread
        autoEvent.WaitOne();

        // generate the HTTP answer

        if (found==false) {
            responseString = "<html><body>character: not found (" + pid + ")</body></html>";
        } else {
            responseString = "<html><body>";
            responseString += "<img src='data:image/jpg;base64," + character.imageB64 + "'></img></br>";
            responseString += "name: " +  character.name + "</br>";
            responseString += "life: " +  character.life + "</br>";
            responseString += "streght " +  character.streght + "</br>";
            responseString += "dexterity " +  character.dexterity + "</br>";
            responseString += "consitution " +  character.consitution + "</br>";
            responseString += "intelligence " +  character.intelligence + "</br>";
            responseString += "</body></html>";
        }

        byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
        // Get a response stream and write the response to it.
        response.ContentLength64 = buffer.Length;
        System.IO.Stream output = response.OutputStream;
        output.Write(buffer,0,buffer.Length);
        // You must close the output stream.
        output.Close();
    }

 public void SetWaitHandle_Enqueue_Asynchronous()
 {
     using (AutoResetEvent waitHandle = new AutoResetEvent(false))
     {
         this.q = new EventQueue();
         this.q.SetWaitHandleForSynchronizedEvents(waitHandle);
         this.afterEnqueue = false;
         this.RunProducerConsumer();
     }
 }

	static int Main ()
	{
		for (int i = 0; i < Count; i++) {
			events [i] = new AutoResetEvent (false);
			ThreadPool.QueueUserWorkItem (new WaitCallback (Callback), i);
		}

		AutoResetEvent.WaitAll (events);
		return exit_code;
	}