ref_count_manager.hh

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/* -*- C++ -*-
 * $Id: ref_count_manager.hh 957 2005-03-07 16:01:20Z sjoyeux $
 */
#ifndef UTILMM_SMART_REF_COUNT_MANAGER_HEADER
# define UTILMM_SMART_REF_COUNT_MANAGER_HEADER

#include "utilmm/singleton/wrapper_fwd.hh"

namespace utilmm {
  namespace smart {
    namespace ref_count {
      
      template<class Memory>
      class manager {
      public:
        typedef typename Memory::base_type base_type;
        typedef typename Memory::mem_cell mem_cell;

        mem_cell manage(base_type *ptr);
        mem_cell assign(mem_cell c);
        
        void release(mem_cell c);

        bool null(mem_cell c) {
          return c==mem.null_cell();
        }

        base_type *get_ptr(mem_cell c) {
          return c->first;
        }

      private:
        manager() {}

        ~manager() {}

        Memory mem;

        template<class Ty>
        friend class singleton::wrapper;
      }; // class utilmm::smart::ref_count::manager<>

    } // namespace utilmm::smart::ref_count
  } // namespace utilmm::smart
} // namespace utilmm

# define IN_UTILMM_SMART_REF_COUNT_MANAGER_HEADER
#include "utilmm/smart/bits/ref_count_manager.tcc"
# undef IN_UTILMM_SMART_REF_COUNT_MANAGER_HEADER
#endif // UTILMM_SMART_REF_COUNT_MANAGER_HEADER