CoCalc -- malloc

GitHub Repository: freebsd/freebsd-src
Path: blob/main/include/malloc_np.h
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/*-
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 * SPDX-License-Identifier: BSD-2-Clause
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 *
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 * Copyright (C) 2006 Jason Evans <[email protected]>.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice(s), this list of conditions and the following disclaimer as
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 *    the first lines of this file unmodified other than the possible
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 *    addition of one or more copyright notices.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice(s), this list of conditions and the following disclaimer in
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 *    the documentation and/or other materials provided with the
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 *    distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef _MALLOC_NP_H_
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#define	_MALLOC_NP_H_
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#include <sys/types.h>
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#ifdef __cplusplus
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#define	__MyBool	bool
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#else
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#define	__MyBool	_Bool
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#endif
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__BEGIN_DECLS
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typedef struct extent_hooks_s extent_hooks_t;
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typedef void *(extent_alloc_t)(extent_hooks_t *, void *, size_t, size_t,
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    __MyBool *, __MyBool *, unsigned);
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typedef __MyBool (extent_dalloc_t)(extent_hooks_t *, void *, size_t, __MyBool,
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    unsigned);
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typedef void (extent_destroy_t)(extent_hooks_t *, void *, size_t, __MyBool,
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    unsigned);
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typedef __MyBool (extent_commit_t)(extent_hooks_t *, void *, size_t, size_t,
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    size_t, unsigned);
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typedef __MyBool (extent_decommit_t)(extent_hooks_t *, void *, size_t, size_t,
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    size_t, unsigned);
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typedef __MyBool (extent_purge_t)(extent_hooks_t *, void *, size_t, size_t, size_t,
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    unsigned);
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typedef __MyBool (extent_split_t)(extent_hooks_t *, void *, size_t, size_t, size_t,
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    __MyBool, unsigned);
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typedef __MyBool (extent_merge_t)(extent_hooks_t *, void *, size_t, void *, size_t,
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    __MyBool, unsigned);
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struct extent_hooks_s {
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	extent_alloc_t		*alloc;
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	extent_dalloc_t		*dalloc;
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	extent_destroy_t	*destroy;
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	extent_commit_t		*commit;
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	extent_decommit_t	*decommit;
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	extent_purge_t		*purge_lazy;
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	extent_purge_t		*purge_forced;
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	extent_split_t		*split;
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	extent_merge_t		*merge;
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};
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size_t	malloc_usable_size(const void *ptr);
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void	malloc_stats_print(void (*write_cb)(void *, const char *),
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    void *cbopaque, const char *opts);
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#define	MALLCTL_ARENAS_ALL	4096
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#define	MALLCTL_ARENAS_DESTROYED	4097
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int	mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
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    size_t newlen);
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int	mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp);
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int	mallctlbymib(const size_t *mib, size_t miblen, void *oldp,
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    size_t *oldlenp, void *newp, size_t newlen);
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#define	MALLOCX_LG_ALIGN(la)	((int)(la))
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#define	MALLOCX_ALIGN(a)	((int)(ffsl((int)(a))-1))
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#define	MALLOCX_ZERO		((int)0x40)
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#define	MALLOCX_TCACHE(tc)	((int)(((tc)+2) << 8))
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#define	MALLOCX_TCACHE_NONE	MALLOCX_TCACHE(-1)
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#define	MALLOCX_ARENA(a)	((((int)(a))+1) << 20)
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void	*mallocx(size_t size, int flags);
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void	*rallocx(void *ptr, size_t size, int flags);
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size_t	xallocx(void *ptr, size_t size, size_t extra, int flags);
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size_t	sallocx(const void *ptr, int flags);
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void	dallocx(void *ptr, int flags);
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void	sdallocx(void *ptr, size_t size, int flags);
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size_t	nallocx(size_t size, int flags);
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void *	__calloc(size_t number, size_t size) __malloc_like;
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void *	__malloc(size_t size) __malloc_like;
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void *	__realloc(void *ptr, size_t size);
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void	__free(void *ptr);
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int	__posix_memalign(void **ptr, size_t alignment, size_t size);
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void	*__aligned_alloc(size_t alignment, size_t size);
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size_t	__malloc_usable_size(const void *ptr);
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void	__malloc_stats_print(void (*write_cb)(void *, const char *),
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    void *cbopaque, const char *opts);
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int	__mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
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    size_t newlen);
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int	__mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp);
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int	__mallctlbymib(const size_t *mib, size_t miblen, void *oldp,
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    size_t *oldlenp, void *newp, size_t newlen);
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void	*__mallocx(size_t size, int flags);
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void	*__rallocx(void *ptr, size_t size, int flags);
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size_t	__xallocx(void *ptr, size_t size, size_t extra, int flags);
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size_t	__sallocx(const void *ptr, int flags);
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void	__dallocx(void *ptr, int flags);
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void	__sdallocx(void *ptr, size_t size, int flags);
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size_t	__nallocx(size_t size, int flags);
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void	*memalign(size_t, size_t) __malloc_like __alloc_align(1)
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	    __alloc_size(2);
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__END_DECLS
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#undef __MyBool
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#endif /* _MALLOC_NP_H_ */
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