/* $NetBSD: mallocvar.h,v 1.7 2007/11/07 16:12:25 matt Exp $ */ /* * 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. * 3. 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 */ #ifndef _SYS_MALLOCVAR_H_ #define _SYS_MALLOCVAR_H_ #include <sys/types.h> #define M_MAGIC 877983977 /* * This structure describes a type of malloc'd memory and carries * allocation statistics for that memory. */ struct malloc_type { struct malloc_type *ks_next; /* next in list */ u_long ks_magic; /* indicates valid structure */ const char *ks_shortdesc;/* short description */ /* Statistics */ u_long ks_inuse; /* # of packets of this type currently in use */ u_long ks_calls; /* total packets of this type ever allocated */ u_long ks_memuse; /* total memory held in bytes */ u_short ks_limblocks; /* number of times blocked for hitting limit */ u_short ks_mapblocks; /* number of times blocked for kernel map */ u_long ks_maxused; /* maximum number ever used */ u_long ks_limit; /* most that are allowed to exist */ u_long ks_size; /* sizes of this thing that are allocated */ u_long ks_spare; }; #ifdef _KERNEL #define MALLOC_JUSTDEFINE_LIMIT(type, shortdesc, longdesc, limit) \ struct malloc_type type[1] = { \ [0] = { \ .ks_magic = M_MAGIC, \ .ks_shortdesc = shortdesc, \ .ks_limit = limit, \ }, \ }; #define MALLOC_JUSTDEFINE(type, shortdesc, longdesc) \ MALLOC_JUSTDEFINE_LIMIT(type, shortdesc, longdesc, 0) #define MALLOC_DEFINE_LIMIT(type, shortdesc, longdesc, limit) \ MALLOC_JUSTDEFINE_LIMIT(type, shortdesc, longdesc, limit) \ __link_set_add_data(malloc_types, type) #define MALLOC_DEFINE(type, shortdesc, longdesc) \ MALLOC_DEFINE_LIMIT(type, shortdesc, longdesc, 0) #define MALLOC_DECLARE(type) \ extern struct malloc_type type[1] void malloc_type_attach(struct malloc_type *); void malloc_type_detach(struct malloc_type *); void malloc_type_setlimit(struct malloc_type *, u_long); #endif /* _KERNEL */ #endif /* _SYS_MALLOCVAR_H_ */