src/runtime/gencgc-alloc-region.h

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