src/runtime/gencgc-alloc-region.h

   1 #ifndef _GENCGC_ALLOC_REGION_H_
   2 #define _GENCGC_ALLOC_REGION_H_
   3
   4 #include "gc.h"
   5
   6 /* Abstract out the data for an allocation region allowing a single
   7  * routine to be used for allocation and closing. */
   8 struct alloc_region {
   9
  10     /* These two are needed for quick allocation. */
  11     void  *free_pointer;
  12     void  *end_addr; /* pointer to the byte after the last usable byte */
  13
  14     /* These are needed when closing the region. */
  15     page_index_t  first_page;
  16     page_index_t  last_page;
  17     void  *start_addr;
  18 };
  19
  20 extern struct alloc_region  boxed_region;
  21 extern struct alloc_region  unboxed_region;
  22 extern generation_index_t from_space, new_space;
  23 extern struct weak_pointer *weak_pointers;
  24
  25 #endif /*  _GENCGC_ALLOC_REGION_H_ */