libraries/clogger/debugRouter/dobject_compat.cpp
changeset 0 7f656887cf89
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/clogger/debugRouter/dobject_compat.cpp	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,42 @@
+// dobject_compat.cpp
+// 
+// Copyright (c) 2007 - 2010 Accenture. All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+// 
+// Initial Contributors:
+// Accenture - Initial contribution
+//
+
+#include "dobject_compat.h"
+
+extern TBool gRunningWithOldDefinition = ETrue;
+
+NONSHARABLE_CLASS(DObjectWithPaddingOnly) : public DObject
+	{
+public:
+	DOBJECT_PADDING;
+	};
+
+TBool CalculateDObjectSize()
+	{
+	DObjectWithPaddingOnly* obj = new DObjectWithPaddingOnly;
+	if (!obj) return EFalse;
+	
+	// objectId points to the mem location where iObjectId will be. So if running on a system with the new size DOBject it will always be non-zero (because objectIds are set in the DObject constructor, and are always non-zero), but if running on earlier systems it will be zero because DBase zero-fills the object
+	TUint64& objectId = *reinterpret_cast<TUint64*>((TUint8*)&obj->iName + sizeof(HBuf*));
+	
+	if (objectId != 0)
+		{
+		//Kern::Printf("Detected MemoryAccess is running with new larger DObject");
+		gRunningWithOldDefinition = EFalse;
+		}
+	else
+		{
+		//Kern::Printf("Detected MemoryAccess is running with old-format DObject");		
+		}
+	obj->Close(NULL);
+	return ETrue;
+	}