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/*
* Copyright (c) 1987, 1993
* The Regents of the University of California. 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, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)malloc.h 8.5 (Berkeley) 5/3/95
* $FreeBSD$
*/
#ifndef _SYS_MALLOC_H_
#define _SYS_MALLOC_H_
#include <sys/queue.h>
#include <sys/_lock.h>
#include <sys/_mutex.h>
#define MINALLOCSIZE UMA_SMALLEST_UNIT
/*
* flags to malloc.
*/
#define M_NOWAIT 0x0001 /* do not block */
#define M_WAITOK 0x0002 /* ok to block */
#define M_ZERO 0x0100 /* bzero the allocation */
#define M_NOVM 0x0200 /* don't ask VM for pages */
#define M_USE_RESERVE 0x0400 /* can alloc out of reserve memory */
#define M_MAGIC 877983977 /* time when first defined :-) */
struct malloc_type {
struct malloc_type *ks_next; /* next in list */
u_long ks_memuse; /* total memory held in bytes */
u_long ks_size; /* sizes of this thing that are allocated */
u_long ks_inuse; /* # of packets of this type currently in use */
uint64_t ks_calls; /* total packets of this type ever allocated */
u_long ks_maxused; /* maximum number ever used */
u_long ks_magic; /* if it's not magic, don't touch it */
const char *ks_shortdesc; /* short description */
struct mtx ks_mtx; /* lock for stats */
};
#ifdef _KERNEL
#define MALLOC_DEFINE(type, shortdesc, longdesc) \
struct malloc_type type[1] = { \
{ NULL, 0, 0, 0, 0, 0, M_MAGIC, shortdesc, {} } \
}; \
SYSINIT(type##_init, SI_SUB_KMEM, SI_ORDER_SECOND, malloc_init, type); \
SYSUNINIT(type##_uninit, SI_SUB_KMEM, SI_ORDER_ANY, malloc_uninit, type)
#define MALLOC_DECLARE(type) \
extern struct malloc_type type[1]
MALLOC_DECLARE(M_CACHE);
MALLOC_DECLARE(M_DEVBUF);
MALLOC_DECLARE(M_TEMP);
MALLOC_DECLARE(M_IP6OPT); /* for INET6 */
MALLOC_DECLARE(M_IP6NDP); /* for INET6 */
/*
* Deprecated macro versions of not-quite-malloc() and free().
*/
#define MALLOC(space, cast, size, type, flags) \
((space) = (cast)malloc((u_long)(size), (type), (flags)))
#define FREE(addr, type) free((addr), (type))
/*
* XXX this should be declared in <sys/uio.h>, but that tends to fail
* because <sys/uio.h> is included in a header before the source file
* has a chance to include <sys/malloc.h> to get MALLOC_DECLARE() defined.
*/
MALLOC_DECLARE(M_IOV);
extern struct mtx malloc_mtx;
/* XXX struct malloc_type is unused for contig*(). */
void contigfree(void *addr, unsigned long size, struct malloc_type *type);
void *contigmalloc(unsigned long size, struct malloc_type *type, int flags,
vm_paddr_t low, vm_paddr_t high, unsigned long alignment,
unsigned long boundary);
void free(void *addr, struct malloc_type *type);
void *malloc(unsigned long size, struct malloc_type *type, int flags);
void malloc_init(void *);
int malloc_last_fail(void);
void malloc_uninit(void *);
void *realloc(void *addr, unsigned long size, struct malloc_type *type,
int flags);
void *reallocf(void *addr, unsigned long size, struct malloc_type *type,
int flags);
#endif /* _KERNEL */
#endif /* !_SYS_MALLOC_H_ */
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