diff options
Diffstat (limited to 'test/monniaux/ocaml/byterun/caml/major_gc.h')
| -rw-r--r-- | test/monniaux/ocaml/byterun/caml/major_gc.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/test/monniaux/ocaml/byterun/caml/major_gc.h b/test/monniaux/ocaml/byterun/caml/major_gc.h new file mode 100644 index 00000000..813f8a78 --- /dev/null +++ b/test/monniaux/ocaml/byterun/caml/major_gc.h @@ -0,0 +1,95 @@ +/**************************************************************************/ +/* */ +/* OCaml */ +/* */ +/* Damien Doligez, projet Para, INRIA Rocquencourt */ +/* */ +/* Copyright 1996 Institut National de Recherche en Informatique et */ +/* en Automatique. */ +/* */ +/* All rights reserved. This file is distributed under the terms of */ +/* the GNU Lesser General Public License version 2.1, with the */ +/* special exception on linking described in the file LICENSE. */ +/* */ +/**************************************************************************/ + +#ifndef CAML_MAJOR_GC_H +#define CAML_MAJOR_GC_H + +#ifdef CAML_INTERNALS + +#include "freelist.h" +#include "misc.h" + +typedef struct { + void *block; /* address of the malloced block this chunk lives in */ + asize_t alloc; /* in bytes, used for compaction */ + asize_t size; /* in bytes */ + char *next; +} heap_chunk_head; + +#define Chunk_size(c) (((heap_chunk_head *) (c)) [-1]).size +#define Chunk_alloc(c) (((heap_chunk_head *) (c)) [-1]).alloc +#define Chunk_next(c) (((heap_chunk_head *) (c)) [-1]).next +#define Chunk_block(c) (((heap_chunk_head *) (c)) [-1]).block + +extern int caml_gc_phase; +extern int caml_gc_subphase; +extern uintnat caml_allocated_words; +extern double caml_extra_heap_resources; +extern uintnat caml_dependent_size, caml_dependent_allocated; +extern uintnat caml_fl_wsz_at_phase_change; + +#define Phase_mark 0 +#define Phase_clean 1 +#define Phase_sweep 2 +#define Phase_idle 3 + +/* Subphase of mark */ +#define Subphase_mark_roots 10 +/* Subphase_mark_roots: At the end of this subphase all the global + roots are marked. */ +#define Subphase_mark_main 11 +/* Subphase_mark_main: At the end of this subphase all the value alive at + the start of this subphase and created during it are marked. */ +#define Subphase_mark_final 12 +/* Subphase_mark_final: At the start of this subphase register which + value with an ocaml finalizer are not marked, the associated + finalizer will be run later. So we mark now these values as alive, + since they must be available for their finalizer. + */ + +CAMLextern char *caml_heap_start; +extern uintnat total_heap_size; +extern char *caml_gc_sweep_hp; + +extern int caml_major_window; +extern double caml_major_ring[Max_major_window]; +extern int caml_major_ring_index; +extern double caml_major_work_credit; +extern double caml_gc_clock; + +/* [caml_major_gc_hook] is called just between the end of the mark + phase and the beginning of the sweep phase of the major GC */ +CAMLextern void (*caml_major_gc_hook)(void); + +void caml_init_major_heap (asize_t); /* size in bytes */ +asize_t caml_clip_heap_chunk_wsz (asize_t wsz); +void caml_darken (value, value *); +void caml_major_collection_slice (intnat); +void major_collection (void); +void caml_finish_major_cycle (void); +void caml_set_major_window (int); + +/* Forces finalisation of all heap-allocated values, + disregarding both local and global roots. + + Warning: finalisation is performed by means of forced sweeping, which may + result in pointers referencing nonexistent values; therefore the function + should only be used on runtime shutdown. +*/ +void caml_finalise_heap (void); + +#endif /* CAML_INTERNALiS */ + +#endif /* CAML_MAJOR_GC_H */ |