1#ifndef JEMALLOC_INTERNAL_ARENA_EXTERNS_H
2#define JEMALLOC_INTERNAL_ARENA_EXTERNS_H
3
4#include "jemalloc/internal/bin.h"
5#include "jemalloc/internal/extent_dss.h"
6#include "jemalloc/internal/hook.h"
7#include "jemalloc/internal/pages.h"
8#include "jemalloc/internal/stats.h"
9
10extern ssize_t opt_dirty_decay_ms;
11extern ssize_t opt_muzzy_decay_ms;
12
13extern percpu_arena_mode_t opt_percpu_arena;
14extern const char *percpu_arena_mode_names[];
15
16extern const uint64_t h_steps[SMOOTHSTEP_NSTEPS];
17extern malloc_mutex_t arenas_lock;
18
19extern size_t opt_oversize_threshold;
20extern size_t oversize_threshold;
21
22void arena_basic_stats_merge(tsdn_t *tsdn, arena_t *arena,
23 unsigned *nthreads, const char **dss, ssize_t *dirty_decay_ms,
24 ssize_t *muzzy_decay_ms, size_t *nactive, size_t *ndirty, size_t *nmuzzy);
25void arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
26 const char **dss, ssize_t *dirty_decay_ms, ssize_t *muzzy_decay_ms,
27 size_t *nactive, size_t *ndirty, size_t *nmuzzy, arena_stats_t *astats,
28 bin_stats_t *bstats, arena_stats_large_t *lstats,
29 arena_stats_extents_t *estats);
30void arena_extents_dirty_dalloc(tsdn_t *tsdn, arena_t *arena,
31 extent_hooks_t **r_extent_hooks, extent_t *extent);
32#ifdef JEMALLOC_JET
33size_t arena_slab_regind(extent_t *slab, szind_t binind, const void *ptr);
34#endif
35extent_t *arena_extent_alloc_large(tsdn_t *tsdn, arena_t *arena,
36 size_t usize, size_t alignment, bool *zero);
37void arena_extent_dalloc_large_prep(tsdn_t *tsdn, arena_t *arena,
38 extent_t *extent);
39void arena_extent_ralloc_large_shrink(tsdn_t *tsdn, arena_t *arena,
40 extent_t *extent, size_t oldsize);
41void arena_extent_ralloc_large_expand(tsdn_t *tsdn, arena_t *arena,
42 extent_t *extent, size_t oldsize);
43ssize_t arena_dirty_decay_ms_get(arena_t *arena);
44bool arena_dirty_decay_ms_set(tsdn_t *tsdn, arena_t *arena, ssize_t decay_ms);
45ssize_t arena_muzzy_decay_ms_get(arena_t *arena);
46bool arena_muzzy_decay_ms_set(tsdn_t *tsdn, arena_t *arena, ssize_t decay_ms);
47void arena_decay(tsdn_t *tsdn, arena_t *arena, bool is_background_thread,
48 bool all);
49void arena_reset(tsd_t *tsd, arena_t *arena);
50void arena_destroy(tsd_t *tsd, arena_t *arena);
51void arena_tcache_fill_small(tsdn_t *tsdn, arena_t *arena, tcache_t *tcache,
52 cache_bin_t *tbin, szind_t binind, uint64_t prof_accumbytes);
53void arena_alloc_junk_small(void *ptr, const bin_info_t *bin_info,
54 bool zero);
55
56typedef void (arena_dalloc_junk_small_t)(void *, const bin_info_t *);
57extern arena_dalloc_junk_small_t *JET_MUTABLE arena_dalloc_junk_small;
58
59void *arena_malloc_hard(tsdn_t *tsdn, arena_t *arena, size_t size,
60 szind_t ind, bool zero);
61void *arena_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize,
62 size_t alignment, bool zero, tcache_t *tcache);
63void arena_prof_promote(tsdn_t *tsdn, void *ptr, size_t usize);
64void arena_dalloc_promoted(tsdn_t *tsdn, void *ptr, tcache_t *tcache,
65 bool slow_path);
66void arena_dalloc_bin_junked_locked(tsdn_t *tsdn, arena_t *arena, bin_t *bin,
67 szind_t binind, extent_t *extent, void *ptr);
68void arena_dalloc_small(tsdn_t *tsdn, void *ptr);
69bool arena_ralloc_no_move(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size,
70 size_t extra, bool zero, size_t *newsize);
71void *arena_ralloc(tsdn_t *tsdn, arena_t *arena, void *ptr, size_t oldsize,
72 size_t size, size_t alignment, bool zero, tcache_t *tcache,
73 hook_ralloc_args_t *hook_args);
74dss_prec_t arena_dss_prec_get(arena_t *arena);
75bool arena_dss_prec_set(arena_t *arena, dss_prec_t dss_prec);
76ssize_t arena_dirty_decay_ms_default_get(void);
77bool arena_dirty_decay_ms_default_set(ssize_t decay_ms);
78ssize_t arena_muzzy_decay_ms_default_get(void);
79bool arena_muzzy_decay_ms_default_set(ssize_t decay_ms);
80bool arena_retain_grow_limit_get_set(tsd_t *tsd, arena_t *arena,
81 size_t *old_limit, size_t *new_limit);
82unsigned arena_nthreads_get(arena_t *arena, bool internal);
83void arena_nthreads_inc(arena_t *arena, bool internal);
84void arena_nthreads_dec(arena_t *arena, bool internal);
85size_t arena_extent_sn_next(arena_t *arena);
86arena_t *arena_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks);
87bool arena_init_huge(void);
88bool arena_is_huge(unsigned arena_ind);
89arena_t *arena_choose_huge(tsd_t *tsd);
90bin_t *arena_bin_choose_lock(tsdn_t *tsdn, arena_t *arena, szind_t binind,
91 unsigned *binshard);
92void arena_boot(sc_data_t *sc_data);
93void arena_prefork0(tsdn_t *tsdn, arena_t *arena);
94void arena_prefork1(tsdn_t *tsdn, arena_t *arena);
95void arena_prefork2(tsdn_t *tsdn, arena_t *arena);
96void arena_prefork3(tsdn_t *tsdn, arena_t *arena);
97void arena_prefork4(tsdn_t *tsdn, arena_t *arena);
98void arena_prefork5(tsdn_t *tsdn, arena_t *arena);
99void arena_prefork6(tsdn_t *tsdn, arena_t *arena);
100void arena_prefork7(tsdn_t *tsdn, arena_t *arena);
101void arena_postfork_parent(tsdn_t *tsdn, arena_t *arena);
102void arena_postfork_child(tsdn_t *tsdn, arena_t *arena);
103
104#endif /* JEMALLOC_INTERNAL_ARENA_EXTERNS_H */
105