1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (C) 2006 Jason Evans <jasone@FreeBSD.org>.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice(s), this list of conditions and the following disclaimer as
12 * the first lines of this file unmodified other than the possible
13 * addition of one or more copyright notices.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice(s), this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
26 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _MALLOC_NP_H_
33#define _MALLOC_NP_H_
34
35#include <sys/types.h>
36
37#ifdef __cplusplus
38#define __MyBool bool
39#else
40#define __MyBool _Bool
41#endif
42
43__BEGIN_DECLS
44typedef struct extent_hooks_s extent_hooks_t;
45typedef void *(extent_alloc_t)(extent_hooks_t *, void *, size_t, size_t,
46 __MyBool *, __MyBool *, unsigned);
47typedef __MyBool (extent_dalloc_t)(extent_hooks_t *, void *, size_t, __MyBool,
48 unsigned);
49typedef void (extent_destroy_t)(extent_hooks_t *, void *, size_t, __MyBool,
50 unsigned);
51typedef __MyBool (extent_commit_t)(extent_hooks_t *, void *, size_t, size_t,
52 size_t, unsigned);
53typedef __MyBool (extent_decommit_t)(extent_hooks_t *, void *, size_t, size_t,
54 size_t, unsigned);
55typedef __MyBool (extent_purge_t)(extent_hooks_t *, void *, size_t, size_t, size_t,
56 unsigned);
57typedef __MyBool (extent_split_t)(extent_hooks_t *, void *, size_t, size_t, size_t,
58 __MyBool, unsigned);
59typedef __MyBool (extent_merge_t)(extent_hooks_t *, void *, size_t, void *, size_t,
60 __MyBool, unsigned);
61struct extent_hooks_s {
62 extent_alloc_t *alloc;
63 extent_dalloc_t *dalloc;
64 extent_destroy_t *destroy;
65 extent_commit_t *commit;
66 extent_decommit_t *decommit;
67 extent_purge_t *purge_lazy;
68 extent_purge_t *purge_forced;
69 extent_split_t *split;
70 extent_merge_t *merge;
71};
72
73size_t malloc_usable_size(const void *ptr);
74
75void malloc_stats_print(void (*write_cb)(void *, const char *),
76 void *cbopaque, const char *opts);
77
78#define MALLCTL_ARENAS_ALL 4096
79#define MALLCTL_ARENAS_DESTROYED 4097
80
81int mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
82 size_t newlen);
83int mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp);
84int mallctlbymib(const size_t *mib, size_t miblen, void *oldp,
85 size_t *oldlenp, void *newp, size_t newlen);
86
87#define MALLOCX_LG_ALIGN(la) ((int)(la))
88#define MALLOCX_ALIGN(a) ((int)(ffsl((int)(a))-1))
89#define MALLOCX_ZERO ((int)0x40)
90#define MALLOCX_TCACHE(tc) ((int)(((tc)+2) << 8))
91#define MALLOCX_TCACHE_NONE MALLOCX_TCACHE(-1)
92#define MALLOCX_ARENA(a) ((((int)(a))+1) << 20)
93
94void *mallocx(size_t size, int flags);
95void *rallocx(void *ptr, size_t size, int flags);
96size_t xallocx(void *ptr, size_t size, size_t extra, int flags);
97size_t sallocx(const void *ptr, int flags);
98void dallocx(void *ptr, int flags);
99void sdallocx(void *ptr, size_t size, int flags);
100size_t nallocx(size_t size, int flags);
101
102void * __calloc(size_t number, size_t size) __malloc_like;
103void * __malloc(size_t size) __malloc_like;
104void * __realloc(void *ptr, size_t size);
105void __free(void *ptr);
106int __posix_memalign(void **ptr, size_t alignment, size_t size);
107void *__aligned_alloc(size_t alignment, size_t size);
108size_t __malloc_usable_size(const void *ptr);
109void __malloc_stats_print(void (*write_cb)(void *, const char *),
110 void *cbopaque, const char *opts);
111int __mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
112 size_t newlen);
113int __mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp);
114int __mallctlbymib(const size_t *mib, size_t miblen, void *oldp,
115 size_t *oldlenp, void *newp, size_t newlen);
116void *__mallocx(size_t size, int flags);
117void *__rallocx(void *ptr, size_t size, int flags);
118size_t __xallocx(void *ptr, size_t size, size_t extra, int flags);
119size_t __sallocx(const void *ptr, int flags);
120void __dallocx(void *ptr, int flags);
121void __sdallocx(void *ptr, size_t size, int flags);
122size_t __nallocx(size_t size, int flags);
123
124void *memalign(size_t, size_t) __malloc_like __alloc_align(1)
125 __alloc_size(2);
126__END_DECLS
127
128#undef __MyBool
129
130#endif /* _MALLOC_NP_H_ */