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_ */
131