mono/tests/delegate-async-exception.cs

   1 using System;
   2 using System.Threading;
   3 using System.Runtime.InteropServices;
   4
   5 class foo {
   6         delegate void foo_delegate ();
   7
   8         static void function () {
   9                 Console.WriteLine ("Delegate method");
  10         }
  11
  12         static void async_callback (IAsyncResult ar)
  13         {
  14                 Console.WriteLine ("Async callback " + ar.AsyncState);
  15                 throw new SystemException("Async throws exception");
  16         }
  17
  18         public static void Main () {
  19                 foo_delegate d = new foo_delegate (function);
  20                 AsyncCallback ac = new AsyncCallback (async_callback);
  21                 IAsyncResult ar1 = d.BeginInvoke (ac, "foo");
  22
  23                 ar1.AsyncWaitHandle.WaitOne();
  24                 d.EndInvoke(ar1);
  25
  26                 Thread.Sleep(1000);
  27                 Console.WriteLine("Main returns");
  28         }
  29 }