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