[Mono-bugs] [Bug 41841][Maj] Changed - MonoEnumInfo requires ThreadSafety

[bugzilla-daemon@rocky.ximian.com]

Please do not reply to this email- if you want to comment on the bug, go to the
URL shown below and enter your comments there.

Changed by r.h.lee@attbi.com.

http://bugzilla.ximian.com/show_bug.cgi?id=41841

--- shadow/41841	Mon Apr 28 18:54:10 2003
+++ shadow/41841.tmp.23513	Mon Apr 28 20:35:12 2003
@@ -32,6 +32,56 @@
 ------- Additional Comments From gonzalo@ximian.com  2003-04-28 18:54 -------
 If you provide a test case that make that actually fail, I'll put the
 changes back in. I reverted them cause lupus commented (and I agreed):
 "the worst that can happen is that very seldomly a few more icalls are
 done and the values/names will need to be recreated. No big deal
 since it will basically never happen anyway."
+
+------- Additional Comments From r.h.lee@attbi.com  2003-04-28 20:35 -------
+Calling any static Enum.<functiondecl> that maps to the internal
+hashtable will reveal the bug.
+
+//
+// Richard Lee
+// r.h.lee@attbi.com
+//
+//
+using System;
+using System.Threading;
+
+	public class App {
+		enum Test 	{A=0,B=1,C=2,D=3,E=4,}
+		
+		private bool _go;
+		private void _thandler() {
+			string fmt="A, B, C";
+			
+			while (!_go) {} 
+			for (int i=0; i<10000; ++i) {
+				Enum.Parse (typeof(Test), fmt);
+			}
+		}
+		
+		public void Test1() {
+			int threadC=2;
+			Thread[] threads=new Thread[threadC];
+			
+			_go=false;
+			for (int i=0; i<threadC; ++i) {
+				threads[i]=new Thread (
+					new ThreadStart (_thandler));
+				threads[i].Start ();
+			}
+			_go=true;
+			Thread.Sleep (1000);
+		}
+		
+		public static void Main (string[] Args) {
+			App test = new App ();
+			test.Test1 ();
+		}
+	}
+
+If lupus would like a document, I'd be glad to provide one ;)
+http://www.wikipedia.org/wiki/Thread_safety
+
+