mono/tests/gc-oom-handling2.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Reflection;
   4
   5
   6 class Driver {
   7         /*Test that GC handles interning failure correctly*/
   8         static void DumpStuff () {
   9                 Console.WriteLine ("CWL under OOM - should not print {0}", 99);
  10                 Console.WriteLine ("CWL under OOM - should not print {0}{1}", 22, 44.4);
  11         }
  12
  13         static int Main () {
  14                 Console.WriteLine ("start");
  15                 Assembly corlib = typeof (object).Assembly;
  16                 Module module = corlib.GetModules ()[0];
  17                 var r = new Random (123456);
  18                 var l = new List<object> ();
  19                 try {
  20                         for (int i = 0; i < 400000; ++i) {
  21                                 var foo = new byte[r.Next () % 4000];
  22                                 l.Add (foo);
  23                         }
  24                         Console.WriteLine ("done");
  25                         return 1;
  26                 } catch (Exception) {
  27                         try {
  28                                 DumpStuff ();
  29                                 return 2;
  30                         } catch (Exception) {}
  31
  32                         try {
  33                                 module.GetTypes ();
  34                                 return 3;
  35                         } catch (Exception) {}
  36
  37                         try {
  38                                 corlib.GetTypes ();
  39                                 return 4;
  40                         } catch (Exception) {}
  41
  42
  43                         l.Clear ();
  44                         l = null;
  45                         Console.WriteLine ("OOM done");
  46                 }
  47                 return 0;
  48         }
  49 }
  50