vm/object_start_map.hpp

   1 namespace factor {
   2
   3 static const cell card_starts_inside_object = 0xff;
   4
   5 struct object_start_map {
   6   cell size, start;
   7   card* object_start_offsets;
   8   card* object_start_offsets_end;
   9
  10   object_start_map(cell size, cell start);
  11   ~object_start_map();
  12
  13   cell find_object_containing_card(cell card_index);
  14   void record_object_start_offset(object* obj);
  15   void clear_object_start_offsets();
  16   void update_card_for_sweep(cell index, uint16_t mask);
  17   void update_for_sweep(mark_bits* state);
  18 };
  19
  20 }