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#ifndef _major_gc_
#define _major_gc_
#include "freelist.h"
#include "misc.h"
typedef struct {
asize_t size;
char *next;
} heap_chunk_head;
extern int gc_phase;
extern unsigned long allocated_words;
extern unsigned long extra_heap_memory;
#define Phase_mark 0
#define Phase_sweep 1
extern char *heap_start;
extern char *heap_end;
extern unsigned long total_heap_size;
extern char *page_table;
extern asize_t page_table_size;
extern char *gc_sweep_hp;
#define In_heap 1
#define Not_in_heap 0
#define Page(p) (((addr) (p) - (addr) heap_start) >> Page_log)
#define Is_in_heap(p) \
((addr)(p) >= (addr)heap_start && (addr)(p) < (addr)heap_end \
&& page_table [Page (p)] == In_heap)
void init_major_heap P((asize_t));
asize_t round_heap_chunk_size P((asize_t));
void darken P((value));
void major_collection_slice P((void));
void major_collection P((void));
void finish_major_cycle P((void));
#endif /* _major_gc_ */
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