mono/tests/xdomain-threads.cs

   1 using System;
   2 using System.Threading;
   3 using System.Runtime.Remoting;
   4
   5 // Does a foreign domain's thread object persist (in .NET) even if it
   6 // hasn't been started?
   7 //
   8 // Insubstantial, because it can't be "moved" to another domain.
   9
  10 // Can we start a foreign domain's thread (i.e. does the thread then
  11 // switch to the foreign domain and execute the start method there)?
  12 //
  13 // No, we can't start it from another domain, because we can't bring
  14 // to another domain.
  15
  16 // What if we start a foreign domain's thread if the domain is gone?
  17 //
  18 // See above.
  19
  20 public class Test : MarshalByRefObject {
  21     public Thread thread;
  22     public String str;
  23
  24     public void setThread () {
  25         Console.WriteLine ("setting thread");
  26         thread = Thread.CurrentThread;
  27         thread.Name = "foo";
  28     }
  29
  30     public void setStr (string s) {
  31         Console.WriteLine ("setting str");
  32         str = s;
  33     }
  34
  35     public void callSetThread (Test t) {
  36         Thread thread = new Thread (new ThreadStart (t.setThread));
  37
  38         thread.Start ();
  39         thread.Join ();
  40
  41         t.setStr ("a" + "b");
  42     }
  43 }
  44
  45 public class main {
  46     public static int Main (string [] args) {
  47         AppDomain domain = AppDomain.CreateDomain ("newdomain");
  48         Test myTest = new Test ();
  49         Test otherTest = (Test) domain.CreateInstanceAndUnwrap (typeof (Test).Assembly.FullName, typeof (Test).FullName);
  50
  51         otherTest.callSetThread (myTest);
  52
  53         if (myTest.thread.GetType () == Thread.CurrentThread.GetType ())
  54                 Console.WriteLine ("same type");
  55         else {
  56                 Console.WriteLine ("different type");
  57                 return 1;
  58         }
  59
  60         AppDomain.Unload (domain);
  61
  62         GC.Collect ();
  63         GC.WaitForPendingFinalizers ();
  64
  65         Console.WriteLine ("thread " + myTest.thread);
  66
  67         Console.WriteLine ("str " + myTest.str);
  68
  69         if (!myTest.thread.Name.Equals("foo"))
  70                 return 1;
  71
  72         return 0;
  73     }
  74 }