74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Damien Doligez, projet Para, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#ifndef _major_gc_
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#define _major_gc_
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#include "freelist.h"
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#include "misc.h"
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typedef struct {
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void *block; /* address of the malloced block this chunk live in */
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asize_t alloc; /* in bytes, used for compaction */
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asize_t size; /* in bytes */
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char *next;
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} heap_chunk_head;
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#define Chunk_size(c) (((heap_chunk_head *) (c)) [-1]).size
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#define Chunk_alloc(c) (((heap_chunk_head *) (c)) [-1]).alloc
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#define Chunk_next(c) (((heap_chunk_head *) (c)) [-1]).next
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#define Chunk_block(c) (((heap_chunk_head *) (c)) [-1]).block
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extern int gc_phase;
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extern unsigned long allocated_words;
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extern double extra_heap_memory;
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extern unsigned long fl_size_at_phase_change;
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#define Phase_mark 0
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#define Phase_sweep 1
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#define Phase_idle 2
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#ifdef __alpha
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typedef int page_table_entry;
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#else
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typedef char page_table_entry;
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#endif
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CAMLextern char *heap_start;
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CAMLextern char *heap_end;
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extern unsigned long total_heap_size;
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CAMLextern page_table_entry *page_table;
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extern asize_t page_low, page_high;
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extern char *gc_sweep_hp;
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#define In_heap 1
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#define Not_in_heap 0
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#define Page(p) ((unsigned long) (p) >> Page_log)
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#define Is_in_heap(p) \
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(Assert (Is_block ((value) (p))), \
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(addr)(p) >= (addr)heap_start && (addr)(p) < (addr)heap_end \
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&& page_table [Page (p)])
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void init_major_heap (asize_t); /* size in bytes */
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asize_t round_heap_chunk_size (asize_t); /* size in bytes */
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void darken (value, value *);
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long major_collection_slice (long);
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void major_collection (void);
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void finish_major_cycle (void);
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#endif /* _major_gc_ */
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