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diff --git a/ace/Based_Pointer_Repository.h b/ace/Based_Pointer_Repository.h
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+/* -*- C++ -*- */
+// $Id$
+
+// ============================================================================
+//
+// = LIBRARY
+//    ace
+//
+// = FILENAME
+//    Based_Pointer_Repository.h
+//
+// = AUTHOR
+//    Dietrich Quehl <Dietrich.Quehl@med.siemens.de> and
+//    Douglas C. Schmidt <schmidt@.cs.wustl.edu>
+//
+// ============================================================================
+
+#if !defined (ACE_BASED_POINTER_REPOSITORY_H)
+#define ACE_BASED_POINTER_REPOSITORY_H
+
+#include "ace/Singleton.h"
+#include "ace/Map_Manager.h"
+
+class ACE_Export ACE_Based_Pointer_Repository 
+{
+  // = TITLE
+  //   Maps pointers to the base address of the region to which each
+  //   pointer belongs.
+  // 
+  // = DESCRIPTION
+  //   Every memory pool in ACE binds it's mapping base address and
+  //   the mapped size to this repository every time it maps/remaps a
+  //   new chunk of memory successfully.
+public:
+  // = Use <ACE_Null_Mutex> to allow locking while iterating.
+  typedef ACE_Map_Manager <void *, size_t *, ACE_Null_Mutex> 
+          MAP_MANAGER;
+  typedef ACE_Map_Iterator < void *, size_t *, ACE_Null_Mutex> 
+          MAP_ITERATOR;
+  typedef ACE_Map_Entry <void *, size_t *> 
+          MAP_ENTRY; 
+
+  // = Initialization and termination methods.
+  ACE_Based_Pointer_Repository (void);
+  ~ACE_Based_Pointer_Repository (void);
+
+  // = Search structure methods.
+  int find (void *addr, 
+            void *&base_addr);
+  // Return the appropriate <base_addr> region that contains <addr>.
+  // Returns 1 on success and 0 if the <addr> isn't contained in any
+  // <base_addr> region.
+
+  int bind (void *addr,
+            size_t size);
+  // Bind a new entry to the repository or update the size of an
+  // existing entry.  Returns 0 on success and -1 on failure.
+
+  int unbind (void *addr);
+  // Unbind from the repository the <base_addr> that <addr> is
+  // contained within.
+
+private:
+  MAP_MANAGER addr_map_;
+  // Keeps track of the mapping between addresses and their associated
+  // values.
+
+  ACE_SYNCH_MUTEX lock_;
+  // Synchronize concurrent access to the map.
+};
+
+// Provide a Singleton access point to the based pointer repository.
+typedef ACE_Singleton<ACE_Based_Pointer_Repository, ACE_SYNCH_RW_MUTEX>
+        ACE_BASED_POINTER_REPOSITORY;
+
+#endif /* ACE_BASED_POINTER_REPOSITORY_H */