Disk ARchive  2.5.3
Full featured and portable backup and archiving tool
mem_allocator.hpp
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1 /*********************************************************************/
2 // dar - disk archive - a backup/restoration program
3 // Copyright (C) 2002-2052 Denis Corbin
4 //
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9 //
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21 
25 
26 
27 #ifndef MEM_ALLOCATOR_HPP
28 #define MEM_ALLOCATOR_HPP
29 
30 #include "../my_config.h"
31 #include "erreurs.hpp"
32 
33 namespace libdar
34 {
35 
36 
39 
41  class mem_manager;
42 
44 
46  {
47  public:
48  mem_allocator(mem_manager *ptr) { if(ptr == nullptr) throw SRC_BUG; manager = ptr; };
49  mem_allocator(const mem_allocator & ref) { throw SRC_BUG; };
50  const mem_allocator & operator = (const mem_allocator & ref) { throw SRC_BUG; };
51  virtual ~mem_allocator() {};
52 
54  virtual void release(void *ptr) = 0;
55 
57  virtual U_I max_percent_full() const = 0;
58 
59  protected:
60  mem_manager & get_manager() { return *manager; };
61 
62  private:
63  mem_manager *manager;
64  };
65 
66 
67 
69 
71  {
72  public:
73  virtual ~mem_manager() {};
74 
76  virtual void push_to_release_list(mem_allocator *ref) = 0;
77  };
78 
79 
81 
82 } // end of namespace
83 
84 #endif
virtual void release(void *ptr)=0
this is the interface to use to release a memory block owned by this mem_allocator ...
generic interface of memory managers that create and delete mem_allocator objects depending on reques...
generic interface of objects that need to be informed that a memory block they manage has been releas...
contains all the excetion class thrown by libdar
virtual U_I max_percent_full() const =0
returns the maximum occupation reached for that object (used for debugging purposes) ...
libdar namespace encapsulate all libdar symbols
Definition: archive.hpp:47