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318 lines
11 KiB
C
318 lines
11 KiB
C
/*
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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 8.3 (Berkeley) 1/12/94
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* $Id: malloc.h,v 1.4 1994/09/19 15:41:55 dfr Exp $
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*/
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#ifndef _SYS_MALLOC_H_
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#define _SYS_MALLOC_H_
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#define KMEMSTATS
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/*
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* flags to malloc
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*/
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#define M_WAITOK 0x0000
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#define M_NOWAIT 0x0001
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/*
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* Types of memory to be allocated
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*/
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#define M_FREE 0 /* should be on free list */
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#define M_MBUF 1 /* mbuf */
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#define M_DEVBUF 2 /* device driver memory */
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#define M_SOCKET 3 /* socket structure */
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#define M_PCB 4 /* protocol control block */
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#define M_RTABLE 5 /* routing tables */
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#define M_HTABLE 6 /* IMP host tables */
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#define M_FTABLE 7 /* fragment reassembly header */
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#define M_ZOMBIE 8 /* zombie proc status */
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#define M_IFADDR 9 /* interface address */
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#define M_SOOPTS 10 /* socket options */
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#define M_SONAME 11 /* socket name */
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#define M_NAMEI 12 /* namei path name buffer */
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#define M_GPROF 13 /* kernel profiling buffer */
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#define M_IOCTLOPS 14 /* ioctl data buffer */
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#define M_MAPMEM 15 /* mapped memory descriptors */
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#define M_CRED 16 /* credentials */
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#define M_PGRP 17 /* process group header */
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#define M_SESSION 18 /* session header */
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#define M_IOV 19 /* large iov's */
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#define M_MOUNT 20 /* vfs mount struct */
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#define M_FHANDLE 21 /* network file handle */
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#define M_NFSREQ 22 /* NFS request header */
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#define M_NFSMNT 23 /* NFS mount structure */
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#define M_NFSNODE 24 /* NFS vnode private part */
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#define M_VNODE 25 /* Dynamically allocated vnodes */
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#define M_CACHE 26 /* Dynamically allocated cache entries */
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#define M_DQUOT 27 /* UFS quota entries */
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#define M_UFSMNT 28 /* UFS mount structure */
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#define M_SHM 29 /* SVID compatible shared memory segments */
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#define M_VMMAP 30 /* VM map structures */
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#define M_VMMAPENT 31 /* VM map entry structures */
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#define M_VMOBJ 32 /* VM object structure */
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#define M_VMOBJHASH 33 /* VM object hash structure */
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#define M_VMPMAP 34 /* VM pmap */
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#define M_VMPVENT 35 /* VM phys-virt mapping entry */
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#define M_VMPAGER 36 /* XXX: VM pager struct */
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#define M_VMPGDATA 37 /* XXX: VM pager private data */
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#define M_FILE 38 /* Open file structure */
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#define M_FILEDESC 39 /* Open file descriptor table */
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#define M_LOCKF 40 /* Byte-range locking structures */
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#define M_PROC 41 /* Proc structures */
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#define M_SUBPROC 42 /* Proc sub-structures */
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#define M_SEGMENT 43 /* Segment for LFS */
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#define M_LFSNODE 44 /* LFS vnode private part */
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#define M_FFSNODE 45 /* FFS vnode private part */
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#define M_MFSNODE 46 /* MFS vnode private part */
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#define M_NQLEASE 47 /* Nqnfs lease */
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#define M_NQMHOST 48 /* Nqnfs host address table */
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#define M_NETADDR 49 /* Export host address structure */
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#define M_NFSSVC 50 /* Nfs server structure */
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#define M_NFSUID 51 /* Nfs uid mapping structure */
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#define M_NFSD 52 /* Nfs server daemon structure */
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#define M_IPMOPTS 53 /* internet multicast options */
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#define M_IPMADDR 54 /* internet multicast address */
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#define M_IFMADDR 55 /* link-level multicast address */
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#define M_MRTABLE 56 /* multicast routing tables */
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#define M_ISOFSMNT 57 /* ISOFS mount structure */
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#define M_ISOFSNODE 58 /* ISOFS vnode private part */
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#define M_MSDOSFSMNT 59 /* MSDOSFS mount structure */
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#define M_MSDOSFSNODE 60 /* MSDOSFS vnode private part */
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#define M_MSDOSFSFAT 61 /* MSDOSFS file allocation table */
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#define M_TEMP 74 /* misc temporary data buffers */
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#define M_TTYS 75 /* tty data structures */
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#define M_GZIP 76 /* tty data structures */
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#define M_LAST 77 /* Must be last type + 1 */
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#define INITKMEMNAMES { \
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"free", /* 0 M_FREE */ \
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"mbuf", /* 1 M_MBUF */ \
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"devbuf", /* 2 M_DEVBUF */ \
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"socket", /* 3 M_SOCKET */ \
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"pcb", /* 4 M_PCB */ \
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"routetbl", /* 5 M_RTABLE */ \
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"hosttbl", /* 6 M_HTABLE */ \
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"fragtbl", /* 7 M_FTABLE */ \
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"zombie", /* 8 M_ZOMBIE */ \
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"ifaddr", /* 9 M_IFADDR */ \
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"soopts", /* 10 M_SOOPTS */ \
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"soname", /* 11 M_SONAME */ \
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"namei", /* 12 M_NAMEI */ \
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"gprof", /* 13 M_GPROF */ \
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"ioctlops", /* 14 M_IOCTLOPS */ \
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"mapmem", /* 15 M_MAPMEM */ \
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"cred", /* 16 M_CRED */ \
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"pgrp", /* 17 M_PGRP */ \
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"session", /* 18 M_SESSION */ \
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"iov", /* 19 M_IOV */ \
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"mount", /* 20 M_MOUNT */ \
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"fhandle", /* 21 M_FHANDLE */ \
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"NFS req", /* 22 M_NFSREQ */ \
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"NFS mount", /* 23 M_NFSMNT */ \
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"NFS node", /* 24 M_NFSNODE */ \
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"vnodes", /* 25 M_VNODE */ \
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"namecache", /* 26 M_CACHE */ \
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"UFS quota", /* 27 M_DQUOT */ \
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"UFS mount", /* 28 M_UFSMNT */ \
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"shm", /* 29 M_SHM */ \
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"VM map", /* 30 M_VMMAP */ \
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"VM mapent", /* 31 M_VMMAPENT */ \
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"VM object", /* 32 M_VMOBJ */ \
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"VM objhash", /* 33 M_VMOBJHASH */ \
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"VM pmap", /* 34 M_VMPMAP */ \
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"VM pvmap", /* 35 M_VMPVENT */ \
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"VM pager", /* 36 M_VMPAGER */ \
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"VM pgdata", /* 37 M_VMPGDATA */ \
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"file", /* 38 M_FILE */ \
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"file desc", /* 39 M_FILEDESC */ \
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"lockf", /* 40 M_LOCKF */ \
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"proc", /* 41 M_PROC */ \
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"subproc", /* 42 M_SUBPROC */ \
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"LFS segment", /* 43 M_SEGMENT */ \
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"LFS node", /* 44 M_LFSNODE */ \
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"FFS node", /* 45 M_FFSNODE */ \
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"MFS node", /* 46 M_MFSNODE */ \
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"NQNFS Lease", /* 47 M_NQLEASE */ \
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"NQNFS Host", /* 48 M_NQMHOST */ \
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"Export Host", /* 49 M_NETADDR */ \
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"NFS srvsock", /* 50 M_NFSSVC */ \
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"NFS uid", /* 51 M_NFSUID */ \
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"NFS daemon", /* 52 M_NFSD */ \
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"ip_moptions", /* 53 M_IPMOPTS */ \
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"in_multi", /* 54 M_IPMADDR */ \
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"ether_multi", /* 55 M_IFMADDR */ \
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"mrt", /* 56 M_MRTABLE */ \
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"ISOFS mount", /* 57 M_ISOFSMNT */ \
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"ISOFS node", /* 58 M_ISOFSNODE */ \
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"MSDOSFS mount",/* 59 M_MSDOSFSMNT */ \
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"MSDOSFS node", /* 60 M_MSDOSFSNODE */ \
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"MSDOSFS FAT", /* 61 M_MSDOSFSFAR */ \
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NULL, NULL, NULL, NULL, NULL, \
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NULL, NULL, NULL, NULL, NULL, \
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NULL, NULL, \
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"temp", /* 74 M_TEMP */ \
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"ttys", /* 75 M_TTYS */ \
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"Gzip trees", /* 76 M_GZIP */ \
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}
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struct kmemstats {
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long ks_inuse; /* # of packets of this type currently in use */
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long ks_calls; /* total packets of this type ever allocated */
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long ks_memuse; /* total memory held in bytes */
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u_short ks_limblocks; /* number of times blocked for hitting limit */
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u_short ks_mapblocks; /* number of times blocked for kernel map */
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long ks_maxused; /* maximum number ever used */
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long ks_limit; /* most that are allowed to exist */
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long ks_size; /* sizes of this thing that are allocated */
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long ks_spare;
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};
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/*
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* Array of descriptors that describe the contents of each page
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*/
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struct kmemusage {
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short ku_indx; /* bucket index */
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union {
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u_short freecnt;/* for small allocations, free pieces in page */
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u_short pagecnt;/* for large allocations, pages alloced */
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} ku_un;
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};
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#define ku_freecnt ku_un.freecnt
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#define ku_pagecnt ku_un.pagecnt
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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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caddr_t kb_next; /* list of free blocks */
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caddr_t 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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#define MINALLOCSIZE (1 << MINBUCKET)
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#define BUCKETINDX(size) \
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(size) <= (MINALLOCSIZE * 128) \
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? (size) <= (MINALLOCSIZE * 8) \
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? (size) <= (MINALLOCSIZE * 2) \
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? (size) <= (MINALLOCSIZE * 1) \
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? (MINBUCKET + 0) \
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: (MINBUCKET + 1) \
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: (size) <= (MINALLOCSIZE * 4) \
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? (MINBUCKET + 2) \
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: (MINBUCKET + 3) \
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: (size) <= (MINALLOCSIZE* 32) \
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? (size) <= (MINALLOCSIZE * 16) \
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? (MINBUCKET + 4) \
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: (MINBUCKET + 5) \
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: (size) <= (MINALLOCSIZE * 64) \
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? (MINBUCKET + 6) \
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: (MINBUCKET + 7) \
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: (size) <= (MINALLOCSIZE * 2048) \
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? (size) <= (MINALLOCSIZE * 512) \
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? (size) <= (MINALLOCSIZE * 256) \
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? (MINBUCKET + 8) \
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: (MINBUCKET + 9) \
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: (size) <= (MINALLOCSIZE * 1024) \
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? (MINBUCKET + 10) \
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: (MINBUCKET + 11) \
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: (size) <= (MINALLOCSIZE * 8192) \
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? (size) <= (MINALLOCSIZE * 4096) \
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? (MINBUCKET + 12) \
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: (MINBUCKET + 13) \
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: (size) <= (MINALLOCSIZE * 16384) \
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? (MINBUCKET + 14) \
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: (MINBUCKET + 15)
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/*
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* Turn virtual addresses into kmem map indicies
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*/
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#define kmemxtob(alloc) (kmembase + (alloc) * NBPG)
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#define btokmemx(addr) (((caddr_t)(addr) - kmembase) / NBPG)
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#define btokup(addr) (&kmemusage[((caddr_t)(addr) - kmembase) >> CLSHIFT])
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/*
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* Macro versions for the usual cases of malloc/free
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*/
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#if defined(KMEMSTATS) || defined(DIAGNOSTIC)
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#define MALLOC(space, cast, size, type, flags) \
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(space) = (cast)malloc((u_long)(size), type, flags)
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#define FREE(addr, type) free((caddr_t)(addr), type)
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#else /* do not collect statistics */
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#define MALLOC(space, cast, size, type, flags) { \
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register struct kmembuckets *kbp = &bucket[BUCKETINDX(size)]; \
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long s = splimp(); \
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if (kbp->kb_next == NULL) { \
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(space) = (cast)malloc((u_long)(size), type, flags); \
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} else { \
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(space) = (cast)kbp->kb_next; \
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kbp->kb_next = *(caddr_t *)(space); \
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} \
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splx(s); \
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}
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#define FREE(addr, type) { \
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register struct kmembuckets *kbp; \
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register struct kmemusage *kup = btokup(addr); \
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long s = splimp(); \
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if (1 << kup->ku_indx > MAXALLOCSAVE) { \
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free((caddr_t)(addr), type); \
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} else { \
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kbp = &bucket[kup->ku_indx]; \
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if (kbp->kb_next == NULL) \
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kbp->kb_next = (caddr_t)(addr); \
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else \
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*(caddr_t *)(kbp->kb_last) = (caddr_t)(addr); \
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*(caddr_t *)(addr) = NULL; \
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kbp->kb_last = (caddr_t)(addr); \
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} \
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splx(s); \
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}
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#endif /* do not collect statistics */
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extern struct kmemstats kmemstats[];
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extern struct kmemusage *kmemusage;
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extern char *kmembase;
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extern struct kmembuckets bucket[];
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extern void *malloc __P((unsigned long size, int type, int flags));
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extern void free __P((void *addr, int type));
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#endif /* KERNEL */
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#endif /* !_SYS_MALLOC_H_ */
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