[Mono-bugs] [Bug 68775][Min] New - WeakReference.TrackResurrection not implemented

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Changed by danw@novell.com.

http://bugzilla.ximian.com/show_bug.cgi?id=68775

--- shadow/68775	2004-10-25 15:38:05.000000000 -0400
+++ shadow/68775.tmp.28094	2004-10-25 15:38:05.000000000 -0400
@@ -0,0 +1,59 @@
+Bug#: 68775
+Product: Mono: Runtime
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Minor
+Component: misc
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: danw@novell.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: WeakReference.TrackResurrection not implemented
+
+mono/metadata/gc.c does not treak HANDLE_WEAK_TRACK weakrefs any
+different from HANDLE_WEAK ones, meaning that WeakReferences with
+resurrection tracking don't actually work. (They behave exactly
+the same as WeakReferences without resurrection tracking.)
+
+Test program:
+
+using System;
+
+public class Foo {
+	~Foo () { Console.WriteLine ("finalized"); }
+}
+
+public class Test {
+	static void Main () {
+		WeakReference ref1, ref2;
+		Foo foo;
+
+		foo = new Foo ();
+		ref1 = new WeakReference (foo, false);
+		ref2 = new WeakReference (foo, true);
+		foo = null;
+
+		GC.Collect ();
+		GC.WaitForPendingFinalizers ();
+
+		Console.WriteLine ("ref1 is {0}", ref1.Target == null ? "null" : "valid");
+		Console.WriteLine ("ref2 is {0}", ref2.Target == null ? "null" : "valid");
+	}
+}
+
+
+result on Mono:
+finalized
+ref1 is null
+ref2 is null
+
+result on .NET:
+finalized
+ref1 is null
+ref2 is valid