1 /******************************************************************************/
2 #ifdef JEMALLOC_H_TYPES
3
4 /*
5 * Size and alignment of memory chunks that are allocated by the OS's virtual
6 * memory system.
7 */
8 #define LG_CHUNK_DEFAULT 21
9
10 /* Return the chunk address for allocation address a. */
11 #define CHUNK_ADDR2BASE(a) \
12 ((void *)((uintptr_t)(a) & ~chunksize_mask))
13
14 /* Return the chunk offset of address a. */
15 #define CHUNK_ADDR2OFFSET(a) \
16 ((size_t)((uintptr_t)(a) & chunksize_mask))
17
18 /* Return the smallest chunk multiple that is >= s. */
19 #define CHUNK_CEILING(s) \
20 (((s) + chunksize_mask) & ~chunksize_mask)
21
22 #define CHUNK_HOOKS_INITIALIZER { \
23 NULL, \
24 NULL, \
25 NULL, \
26 NULL, \
27 NULL, \
28 NULL, \
29 NULL \
30 }
31
32 #endif /* JEMALLOC_H_TYPES */
33 /******************************************************************************/
34 #ifdef JEMALLOC_H_STRUCTS
35
36 #endif /* JEMALLOC_H_STRUCTS */
37 /******************************************************************************/
38 #ifdef JEMALLOC_H_EXTERNS
39
40 extern size_t opt_lg_chunk;
41 extern const char *opt_dss;
42
43 extern rtree_t chunks_rtree;
44
45 extern size_t chunksize;
46 extern size_t chunksize_mask; /* (chunksize - 1). */
47 extern size_t chunk_npages;
48
49 extern const chunk_hooks_t chunk_hooks_default;
50
51 chunk_hooks_t chunk_hooks_get(tsdn_t *tsdn, arena_t *arena);
52 chunk_hooks_t chunk_hooks_set(tsdn_t *tsdn, arena_t *arena,
53 const chunk_hooks_t *chunk_hooks);
54
55 bool chunk_register(const void *chunk, const extent_node_t *node,
56 bool *gdump);
57 void chunk_deregister(const void *chunk, const extent_node_t *node);
58 void *chunk_alloc_base(size_t size);
59 void *chunk_alloc_cache(tsdn_t *tsdn, arena_t *arena,
60 chunk_hooks_t *chunk_hooks, void *new_addr, size_t size, size_t alignment,
61 size_t *sn, bool *zero, bool *commit, bool dalloc_node);
62 void *chunk_alloc_wrapper(tsdn_t *tsdn, arena_t *arena,
63 chunk_hooks_t *chunk_hooks, void *new_addr, size_t size, size_t alignment,
64 size_t *sn, bool *zero, bool *commit);
65 void chunk_dalloc_cache(tsdn_t *tsdn, arena_t *arena,
66 chunk_hooks_t *chunk_hooks, void *chunk, size_t size, size_t sn,
67 bool committed);
68 void chunk_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena,
69 chunk_hooks_t *chunk_hooks, void *chunk, size_t size, size_t sn,
70 bool zeroed, bool committed);
71 bool chunk_purge_wrapper(tsdn_t *tsdn, arena_t *arena,
72 chunk_hooks_t *chunk_hooks, void *chunk, size_t size, size_t offset,
73 size_t length);
74 bool chunk_boot(void);
75
76 #endif /* JEMALLOC_H_EXTERNS */
77 /******************************************************************************/
78 #ifdef JEMALLOC_H_INLINES
79
80 #ifndef JEMALLOC_ENABLE_INLINE
81 extent_node_t *chunk_lookup(const void *chunk, bool dependent);
82 #endif
83
84 #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_CHUNK_C_))
85 JEMALLOC_INLINE extent_node_t *
chunk_lookup(const void * ptr,bool dependent)86 chunk_lookup(const void *ptr, bool dependent)
87 {
88
89 return (rtree_get(&chunks_rtree, (uintptr_t)ptr, dependent));
90 }
91 #endif
92
93 #endif /* JEMALLOC_H_INLINES */
94 /******************************************************************************/
95
96 #include "chunk_dss.h"
97 #include "chunk_mmap.h"
98