[Mono-bugs] [Bug 80425][Maj] Changed - Issues returning Int64 based enums from EndInvoke or remoting methods

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Wed Jan 31 22:19:26 EST 2007

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Changed by robertj at gmx.net.


--- shadow/80425	2007-01-31 12:21:41.000000000 -0500
+++ shadow/80425.tmp.24543	2007-01-31 22:19:26.000000000 -0500
@@ -1,23 +1,22 @@
 Bug#: 80425
-Product: Mono: Class Libraries
+Product: Mono: Runtime
 Version: 1.2
 OS: GNU/Linux [Other]
 OS Details: OpenSuse 10.2 (VMWare image Mono
-Status: REOPENED   
+Status: NEW   
 Severity: Unknown
-Priority: Normal
-Component: CORLIB
+Priority: Major
+Component: misc
 AssignedTo: mono-bugs at ximian.com                            
 ReportedBy: dominic_ullmann at hispeed.ch               
 QAContact: mono-bugs at ximian.com
 TargetMilestone: ---
-Summary: Issues when remoting Int64 based enums
+Summary: Issues returning Int64 based enums from EndInvoke or remoting methods
 Description of Problem:
 When receiving an Int64 based enum value via remoting, the value of the 
 enum is incorrect.
 The value is also none of the legal enum values.
@@ -123,6 +122,44 @@
 that the ReturnMessage constructor gets AL as value on the client 
 - I've tested with a lot of different types (for IIOP.NET), and this 
 int64 based enum was the only one which leads to such an issue.
+------- Additional Comments From robertj at gmx.net  2007-01-31 22:19 -------
+That's an x86 issue. AMD64 is not affected.
+The problem is somewhere in marshal.cs:mono_mb_emit_restore_result()
+or related to the code it emits, but I was not able to find it.
+mono_remoting_wrapper() as well as mono_delegate_end_invoke()
+return the correct value.
+A simpler delegate based test case:
+using System;
+public enum Enum64 : long
+	A = Int64.MaxValue,
+delegate Enum64 EnumDelegate (Enum64 value);
+class Test
+	static Enum64 Method (Enum64 value)
+	{
+		return value;
+	}
+	static void Main ()
+	{
+		EnumDelegate d = new EnumDelegate (Method);
+		Enum64 r = d.EndInvoke (d.BeginInvoke (Enum64.A, null, null));
+		Console.WriteLine (r.ToString ("X"));
+		Console.WriteLine (r == Enum64.A);
+	}

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