mono/tests/bug-80392.2.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 Method (int a) {
   9                 return a;
  10         }
  11
  12         static void Callback (IAsyncResult ar)
  13         {
  14         }
  15
  16         static int Main () {
  17                 SimpleDelegate d1 = new SimpleDelegate (Method);
  18                 SimpleDelegate d2 = new SimpleDelegate (Method);
  19
  20                 AsyncCallback ac = new AsyncCallback (Callback);
  21
  22                 IAsyncResult ar1 = d1.BeginInvoke (1, ac, null);
  23                 IAsyncResult ar2 = d2.BeginInvoke (2, ac, null);
  24
  25                 try {
  26                         d1.EndInvoke (ar2);
  27                         return 1;
  28                 } catch (InvalidOperationException) {
  29                         // expected
  30                 }
  31
  32                 try {
  33                         d2.EndInvoke (ar1);
  34                         return 2;
  35                 } catch (InvalidOperationException) {
  36                         // expected
  37                 }
  38
  39                 if (1 != d1.EndInvoke (ar1)) return 3;
  40                 if (2 != d2.EndInvoke (ar2)) return 4;
  41
  42                 return 0;
  43         }
  44 }