vm/old_space.hpp

   1 namespace factor
   2 {
   3
   4 static const cell card_starts_inside_object = 0xff;
   5
   6 struct old_space : zone {
   7         card *object_start_offsets;
   8         card *object_start_offsets_end;
   9
  10         old_space(cell size_, cell start_);
  11         ~old_space();
  12
  13         cell first_object_in_card(cell address)
  14         {
  15                 return object_start_offsets[(address - start) >> card_bits];
  16         }
  17
  18         void record_object_start_offset(object *obj);
  19         object *allot(cell size);
  20         void clear_object_start_offsets();
  21         cell next_object_after(factor_vm *myvm, cell scan);
  22 };
  23
  24 }