ServerAgent.WaitHandle Property

public:
 property System::Threading::WaitHandle ^ WaitHandle { System::Threading::WaitHandle ^ get(); };

public System.Threading.WaitHandle WaitHandle { get; }

Public ReadOnly Property WaitHandle As WaitHandle

Property Value

Examples

The following example demonstrates the use of a wait handle when queuing work items in a thread pool.

public void LCServerEventHandler(ServerAgent sa)
{
   ManualResetEvent autoResetEvent = new ManualResetEvent(false);
   WaitHandle[] handleArray = new WaitHandle[] {
                                 myAppServerAgent.WaitHandle,
                                 manualResetEvent
                              };

   WaitCallback waitCallback = new WaitCallback(myAppServerAgent.ProcessEvent);

   while (true)
   {
      int signaledEvent = WaitHandle.WaitAny(handleArray);

      if (signaledEvent == 0)  // The server event wait handle (index = 0) in handleArray was signaled
      {

          // Schedule a worker thread to process the server event
          try
          {
             if (!ThreadPool.QueueUserWorkItem(waitCallBack))
             {
                 Console.WriteLine("QueueUserWorkItem fails, quitting.");
                 return;
             }

          }
          catch (Exception e)
          {
             Console.WriteLine("Unexpected exception: {0}\n{1}",
                               e.Message,
                               e.StackTrace);
          }
       }
       else // Manual reset event handle (index = 1) in handle array was signaled
       {
          Console.WriteLine("Quit handle signaled, worker will quit now\n");
          break;
       }
   }
}

Remarks

Applications should wait on this handle, and whenever it is signaled, should call ServerAgent.ProcessEvent(). This mechanism allows applications to control the concurrency model. For example, applications can queue up work items using the ThreadPool class.

Applies to