mono/tests/delegate2.cs

   1 using System;
   2 using System.Threading;
   3 using System.Runtime.InteropServices;
   4
   5 class Test {
   6         delegate int SimpleDelegate (int a);
   7
   8         static int cb_state = 0;
   9
  10         static int F (int a) {
  11                 Console.WriteLine ("Test.F from delegate: " + a);
  12                 throw new NotImplementedException ();
  13         }
  14
  15         static void async_callback (IAsyncResult ar)
  16         {
  17                 Console.WriteLine ("Async Callback " + ar.AsyncState);
  18                 cb_state = 1;
  19                 throw new NotImplementedException ();
  20         }
  21
  22         static int Main () {
  23                 SimpleDelegate d = new SimpleDelegate (F);
  24                 AsyncCallback ac = new AsyncCallback (async_callback);
  25                 string state1 = "STATE1";
  26                 int res = 0;
  27
  28                 IAsyncResult ar1 = d.BeginInvoke (1, ac, state1);
  29
  30                 ar1.AsyncWaitHandle.WaitOne ();
  31
  32                 try {
  33                         res = d.EndInvoke (ar1);
  34                 } catch (NotImplementedException) {
  35                         res = 1;
  36                         Console.WriteLine ("received exception ... OK");
  37                 }
  38
  39                 while (cb_state == 0)
  40                         Thread.Sleep (0);
  41
  42                 if (cb_state != 1)
  43                         return 1;
  44
  45                 if (res != 1)
  46                         return 2;
  47
  48                 return 0;
  49         }
  50 }