utilmm: utilmm: ref_count_manager.hh Source File

00001 /* -*- C++ -*-
00002  * $Id: ref_count_manager.hh 957 2005-03-07 16:01:20Z sjoyeux $
00003  */
00004 #ifndef UTILMM_SMART_REF_COUNT_MANAGER_HEADER
00005 # define UTILMM_SMART_REF_COUNT_MANAGER_HEADER
00006 
00007 #include "utilmm/singleton/wrapper_fwd.hh"
00008 
00009 namespace utilmm {
00010   namespace smart {
00017     namespace ref_count {
00018       
00034       template<class Memory>
00035       class manager {
00036       public:
00038         typedef typename Memory::base_type base_type;
00045         typedef typename Memory::mem_cell mem_cell;
00046 
00056         mem_cell manage(base_type *ptr);
00068         mem_cell assign(mem_cell c);
00069         
00080         void release(mem_cell c);
00081 
00090         bool null(mem_cell c) {
00091           return c==mem.null_cell();
00092         }
00093 
00103         base_type *get_ptr(mem_cell c) {
00104           return c->first;
00105         }
00106 
00107       private:
00108         manager() {}
00109 
00110         ~manager() {}
00111 
00112         Memory mem;
00113 
00114         template<class Ty>
00115         friend class singleton::wrapper;
00116       }; // class utilmm::smart::ref_count::manager<>
00117 
00118     } // namespace utilmm::smart::ref_count
00119   } // namespace utilmm::smart
00120 } // namespace utilmm
00121 
00122 # define IN_UTILMM_SMART_REF_COUNT_MANAGER_HEADER
00123 #include "utilmm/smart/bits/ref_count_manager.tcc"
00124 # undef IN_UTILMM_SMART_REF_COUNT_MANAGER_HEADER
00125 #endif // UTILMM_SMART_REF_COUNT_MANAGER_HEADER
00126