/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (C) 2006 Jason Evans <jasone@FreeBSD.org>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice(s), this list of conditions and the following disclaimer as
 *    the first lines of this file unmodified other than the possible
 *    addition of one or more copyright notices.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice(s), this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MALLOC_NP_H_
#define _MALLOC_NP_H_

#include <sys/types.h>

#ifdef __cplusplus
#define __MyBool        bool
#else
#define __MyBool        _Bool
#endif

__BEGIN_DECLS
typedef struct extent_hooks_s extent_hooks_t;
typedef void *(extent_alloc_t)(extent_hooks_t *, void *, size_t, size_t,
    __MyBool *, __MyBool *, unsigned);
typedef __MyBool (extent_dalloc_t)(extent_hooks_t *, void *, size_t, __MyBool,
    unsigned);
typedef void (extent_destroy_t)(extent_hooks_t *, void *, size_t, __MyBool,
    unsigned);
typedef __MyBool (extent_commit_t)(extent_hooks_t *, void *, size_t, size_t,
    size_t, unsigned);
typedef __MyBool (extent_decommit_t)(extent_hooks_t *, void *, size_t, size_t,
    size_t, unsigned);
typedef __MyBool (extent_purge_t)(extent_hooks_t *, void *, size_t, size_t, size_t,
    unsigned);
typedef __MyBool (extent_split_t)(extent_hooks_t *, void *, size_t, size_t, size_t,
    __MyBool, unsigned);
typedef __MyBool (extent_merge_t)(extent_hooks_t *, void *, size_t, void *, size_t,
    __MyBool, unsigned);
struct extent_hooks_s {
        extent_alloc_t          *alloc;
        extent_dalloc_t         *dalloc;
        extent_destroy_t        *destroy;
        extent_commit_t         *commit;
        extent_decommit_t       *decommit;
        extent_purge_t          *purge_lazy;
        extent_purge_t          *purge_forced;
        extent_split_t          *split;
        extent_merge_t          *merge;
};

size_t  malloc_usable_size(const void *ptr);

void    malloc_stats_print(void (*write_cb)(void *, const char *),
    void *cbopaque, const char *opts);

#define MALLCTL_ARENAS_ALL      4096
#define MALLCTL_ARENAS_DESTROYED        4097

int     mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen);
int     mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp);
int     mallctlbymib(const size_t *mib, size_t miblen, void *oldp,
    size_t *oldlenp, void *newp, size_t newlen);

#define MALLOCX_LG_ALIGN(la)    ((int)(la))
#define MALLOCX_ALIGN(a)        ((int)(ffsl((int)(a))-1))
#define MALLOCX_ZERO            ((int)0x40)
#define MALLOCX_TCACHE(tc)      ((int)(((tc)+2) << 8))
#define MALLOCX_TCACHE_NONE     MALLOCX_TCACHE(-1)
#define MALLOCX_ARENA(a)        ((((int)(a))+1) << 20)

void    *mallocx(size_t size, int flags);
void    *rallocx(void *ptr, size_t size, int flags);
size_t  xallocx(void *ptr, size_t size, size_t extra, int flags);
size_t  sallocx(const void *ptr, int flags);
void    dallocx(void *ptr, int flags);
void    sdallocx(void *ptr, size_t size, int flags);
size_t  nallocx(size_t size, int flags);

void *  __calloc(size_t number, size_t size) __malloc_like;
void *  __malloc(size_t size) __malloc_like;
void *  __realloc(void *ptr, size_t size);
void    __free(void *ptr);
int     __posix_memalign(void **ptr, size_t alignment, size_t size);
void    *__aligned_alloc(size_t alignment, size_t size);
size_t  __malloc_usable_size(const void *ptr);
void    __malloc_stats_print(void (*write_cb)(void *, const char *),
    void *cbopaque, const char *opts);
int     __mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen);
int     __mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp);
int     __mallctlbymib(const size_t *mib, size_t miblen, void *oldp,
    size_t *oldlenp, void *newp, size_t newlen);
void    *__mallocx(size_t size, int flags);
void    *__rallocx(void *ptr, size_t size, int flags);
size_t  __xallocx(void *ptr, size_t size, size_t extra, int flags);
size_t  __sallocx(const void *ptr, int flags);
void    __dallocx(void *ptr, int flags);
void    __sdallocx(void *ptr, size_t size, int flags);
size_t  __nallocx(size_t size, int flags);

void    *memalign(size_t, size_t) __malloc_like __alloc_align(1)
            __alloc_size(2);
__END_DECLS

#undef __MyBool

#endif /* _MALLOC_NP_H_ */