mono/tests/critical-finalizers.cs

   1 using System;
   2 using System.Runtime.ConstrainedExecution;
   3
   4 class P {
   5
   6         static public int count = 0;
   7
   8         /*
   9         public P () {
  10                 Console.WriteLine ("p");
  11         }
  12         */
  13
  14         ~P () {
  15                 count++;
  16         }
  17 }
  18
  19 class Q : CriticalFinalizerObject {
  20         static public int count = 0;
  21         static public int first_p_count = -1;
  22         static public int last_p_count = 0;
  23         ~Q () {
  24                 count++;
  25                 if (first_p_count < 0)
  26                         first_p_count = P.count;
  27                 last_p_count = P.count;
  28         }
  29 }
  30
  31 class T : P {
  32
  33         static void makeP () {
  34                 P p = new P ();
  35                 Q q = new Q ();
  36                 p = null;
  37                 q = null;
  38         }
  39
  40         static void callMakeP () {
  41                 makeP ();
  42         }
  43
  44         static int Main () {
  45                 for (int i = 0; i < 100; ++i)
  46                         callMakeP ();
  47                 GC.Collect ();
  48                 GC.WaitForPendingFinalizers ();
  49                 Console.WriteLine (P.count);
  50                 Console.WriteLine (Q.count);
  51                 Console.WriteLine (Q.first_p_count);
  52                 Console.WriteLine (Q.last_p_count);
  53                 if (P.count == 0)
  54                         return 1;
  55                 if (Q.first_p_count < P.count)
  56                         return 1;
  57                 return 0;
  58         }
  59 }