mono/tests/threads-leak.cs

   1 using System;
   2 using System.Threading;
   3
   4 class Driver
   5 {
   6         static ManualResetEvent mre = new ManualResetEvent (false);
   7
   8         class MyClassInThread
   9         {
  10                 public int I { get; set; }
  11
  12                 ~MyClassInThread()
  13                 {
  14                         try {
  15                                 Console.WriteLine($"Finalizer {I}");
  16                         } catch (NotSupportedException) {
  17                         }
  18
  19                         mre.Set ();
  20                 }
  21         }
  22
  23         public static void Main(string[] args)
  24         {
  25                 for (int i = 0; i < 50; ++i) {
  26                         SpawnThread(i);
  27                         GC.Collect();
  28                         GC.Collect();
  29                         GC.Collect();
  30                         GC.Collect();
  31                         GC.WaitForPendingFinalizers();
  32                         Console.WriteLine($"Loop      {i}");
  33                 }
  34
  35                 if (!mre.WaitOne(0))
  36                         Environment.Exit (1);
  37         }
  38
  39         static void SpawnThread(int i)
  40         {
  41                 var th = new Thread(_ => {}) { IsBackground = true, };
  42                 th.Start(new MyClassInThread { I = i });
  43                 th.Join();
  44         }
  45 }