121 lines
4.3 KiB
C
121 lines
4.3 KiB
C
/* $NetBSD: malloc.h,v 1.107 2010/04/23 19:09:15 rmind Exp $ */
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/*
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* Copyright (c) 1987, 1993
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* The Regents of the University of California. 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, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)malloc.h 8.5 (Berkeley) 5/3/95
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*/
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#ifndef _SYS_MALLOC_H_
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#define _SYS_MALLOC_H_
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#if defined(_KERNEL_OPT)
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#include "opt_kmemstats.h"
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#include "opt_malloclog.h"
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#include "opt_malloc_debug.h"
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#endif
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#ifdef _KERNEL
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/*
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* flags to malloc
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*/
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#define M_WAITOK 0x0000 /* can wait for resources */
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#define M_NOWAIT 0x0001 /* do not wait for resources */
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#define M_ZERO 0x0002 /* zero the allocation */
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#define M_CANFAIL 0x0004 /* can fail if requested memory can't ever
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* be allocated */
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#include <sys/mallocvar.h>
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/*
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* The following are standard, built-in malloc types that are
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* not specific to any one subsystem.
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*/
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MALLOC_DECLARE(M_DEVBUF);
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MALLOC_DECLARE(M_DMAMAP);
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MALLOC_DECLARE(M_FREE);
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MALLOC_DECLARE(M_PCB);
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MALLOC_DECLARE(M_TEMP);
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/* XXX These should all be declared elsewhere. */
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MALLOC_DECLARE(M_RTABLE);
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MALLOC_DECLARE(M_FTABLE);
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MALLOC_DECLARE(M_UFSMNT);
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MALLOC_DECLARE(M_NETADDR);
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MALLOC_DECLARE(M_IPMOPTS);
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MALLOC_DECLARE(M_IPMADDR);
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MALLOC_DECLARE(M_MRTABLE);
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MALLOC_DECLARE(M_BWMETER);
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#endif /* _KERNEL */
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/*
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* Set of buckets for each size of memory block that is retained
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*/
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struct kmembuckets {
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void *kb_next; /* list of free blocks */
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void *kb_last; /* last free block */
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long kb_calls; /* total calls to allocate this size */
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long kb_total; /* total number of blocks allocated */
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long kb_totalfree; /* # of free elements in this bucket */
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long kb_elmpercl; /* # of elements in this sized allocation */
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long kb_highwat; /* high water mark */
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long kb_couldfree; /* over high water mark and could free */
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};
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#ifdef _KERNEL
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#ifdef MALLOCLOG
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void *_kern_malloc(unsigned long, struct malloc_type *, int, const char *, long);
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void _kern_free(void *, struct malloc_type *, const char *, long);
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#define malloc(size, type, flags) \
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_kern_malloc((size), (type), (flags), __FILE__, __LINE__)
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#define free(addr, type) \
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_kern_free((addr), (type), __FILE__, __LINE__)
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#else
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void *kern_malloc(unsigned long, struct malloc_type *, int);
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void kern_free(void *, struct malloc_type *);
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#define malloc(size, type, flags) kern_malloc(size, type, flags)
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#define free(addr, type) kern_free(addr, type)
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#endif /* MALLOCLOG */
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#ifdef MALLOC_DEBUG
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void debug_malloc_init(void);
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int debug_malloc(unsigned long, struct malloc_type *, int, void **);
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int debug_free(void *, struct malloc_type *);
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void debug_malloc_print(void);
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void debug_malloc_printit(void (*)(const char *, ...), vaddr_t);
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#endif /* MALLOC_DEBUG */
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void *kern_realloc(void *, unsigned long, struct malloc_type *, int);
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#define realloc(ptr, size, type, flags) \
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kern_realloc(ptr, size, type, flags)
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unsigned long
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malloc_roundup(unsigned long);
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#endif /* _KERNEL */
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#endif /* !_SYS_MALLOC_H_ */
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