// In header: <boost/interprocess/mem_algo/rbtree_best_fit.hpp>
template<typename MutexFamily, typename VoidPointer, std::size_t MemAlignment> 
class rbtree_best_fit {
public:
  // types
  typedef MutexFamily                                                   mutex_family;           // Shared mutex family used for the rest of the Interprocess framework. 
  typedef VoidPointer                                                   void_pointer;           // Pointer type to be used with the rest of the Interprocess framework. 
  typedef unspecified                                                   multiallocation_chain;
  typedef boost::intrusive::pointer_traits< char_ptr >::difference_type difference_type;      
  typedef unspecified                                                   size_type;            
  // construct/copy/destruct
  rbtree_best_fit(size_type, size_type);
  ~rbtree_best_fit();
  // public member functions
  void * allocate(size_type);
  void deallocate(void *);
  size_type get_size() const;
  size_type get_free_memory() const;
  void zero_free_memory();
  void grow(size_type);
  void shrink_to_fit();
  bool all_memory_deallocated();
  bool check_sanity();
  template<typename T> 
    T * allocation_command(boost::interprocess::allocation_type, size_type, 
                           size_type &, T *&);
  void * raw_allocation_command(boost::interprocess::allocation_type, 
                                size_type, size_type &, void *&, 
                                size_type = 1);
  size_type size(const void *) const;
  void * allocate_aligned(size_type, size_type);
  // public static functions
  static size_type get_min_size(size_type);
  // public data members
  static const size_type PayloadPerAllocation;
};