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diff --git a/shared/loki/LockingPtr.h b/shared/loki/LockingPtr.h
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+////////////////////////////////////////////////////////////////////////////////
+// The Loki Library
+// Copyright (c) 2001 by Andrei Alexandrescu
+// This code is from the article:
+//     "Generic<Programming>: volatile — Multithreaded Programmer’s Best Friend
+//     Volatile-Correctness or How to Have Your Compiler Detect Race Conditions
+//     for You" by Alexandrescu, Andrei.
+//     Published in the February 2001 issue of the C/C++ Users Journal.
+//     http://www.cuj.com/documents/s=7998/cujcexp1902alexandr/
+// Permission to use, copy, modify, distribute and sell this software for any 
+//     purpose is hereby granted without fee, provided that the above copyright 
+//     notice appear in all copies and that both that copyright notice and this 
+//     permission notice appear in supporting documentation.
+// The author makes no representations about the 
+//     suitability of this software for any purpose. It is provided "as is" 
+//     without express or implied warranty.
+// Prepared for Loki library by Richard Sposato
+////////////////////////////////////////////////////////////////////////////////
+#ifndef LOKI_LOCKING_PTR_INC_
+#define LOKI_LOCKING_PTR_INC_
+
+// $Id: LockingPtr.h 840 2008-03-19 19:44:38Z rich_sposato $
+
+
+#include <loki/ConstPolicy.h>
+#include <loki/Threads.h>
+
+
+namespace Loki
+{
+    /** @class LockingPtr
+     Locks a volatile object and casts away volatility so that the object
+     can be safely used in a single-threaded region of code.
+     Original version of LockingPtr had only one template - for the shared
+     object, but not the mutex type.  This version allows users to specify a
+     the mutex type as a LockingPolicy class.  The only requirements for a
+     LockingPolicy class are to provide Lock and Unlock methods.
+     */
+    template < typename SharedObject, typename LockingPolicy = LOKI_DEFAULT_MUTEX, 
+               template<class> class ConstPolicy = LOKI_DEFAULT_CONSTNESS >
+    class LockingPtr
+    {
+    public:
+
+        typedef typename ConstPolicy<SharedObject>::Type ConstOrNotType;
+
+        /** Constructor locks mutex associated with an object.
+         @param object Reference to object.
+         @param mutex Mutex used to control thread access to object.
+         */
+        LockingPtr( volatile ConstOrNotType & object, LockingPolicy & mutex )
+           : pObject_( const_cast< SharedObject * >( &object ) ),
+            pMutex_( &mutex )
+        {
+            mutex.Lock();
+        }
+
+        typedef typename std::pair<volatile ConstOrNotType *, LockingPolicy *> Pair;
+
+        /** Constructor locks mutex associated with an object.
+         @param lockpair a std::pair of pointers to the object and the mutex
+         */
+        LockingPtr( Pair lockpair )
+           : pObject_( const_cast< SharedObject * >( lockpair.first ) ),
+            pMutex_( lockpair.second )
+        {
+            lockpair.second->Lock();
+        }
+
+        /// Destructor unlocks the mutex.
+        ~LockingPtr()
+        {
+            pMutex_->Unlock();
+        }
+
+        /// Star-operator dereferences pointer.
+        ConstOrNotType & operator * ()
+        {
+            return *pObject_;
+        }
+
+        /// Point-operator returns pointer to object.
+        ConstOrNotType * operator -> ()
+        {
+            return pObject_;
+        }
+
+    private:
+
+        /// Default constructor is not implemented.
+        LockingPtr();
+
+        /// Copy-constructor is not implemented.
+        LockingPtr( const LockingPtr & );
+
+        /// Copy-assignment-operator is not implemented.
+        LockingPtr & operator = ( const LockingPtr & );
+
+        /// Pointer to the shared object.
+        ConstOrNotType * pObject_;
+
+        /// Pointer to the mutex.
+        LockingPolicy * pMutex_;
+
+    }; // end class LockingPtr
+
+} // namespace Loki
+
+#endif // end file guardian
+