monitor_mm.h revision 98675
139287Ssos/* $OpenBSD: monitor_mm.h,v 1.2 2002/03/26 03:24:01 stevesk Exp $ */ 239643Syokota 339287Ssos/* 439287Ssos * Copyright 2002 Niels Provos <provos@citi.umich.edu> 539287Ssos * All rights reserved. 639287Ssos * 739287Ssos * Redistribution and use in source and binary forms, with or without 839287Ssos * modification, are permitted provided that the following conditions 939643Syokota * are met: 1039643Syokota * 1. Redistributions of source code must retain the above copyright 1139287Ssos * notice, this list of conditions and the following disclaimer. 1239287Ssos * 2. Redistributions in binary form must reproduce the above copyright 1339287Ssos * notice, this list of conditions and the following disclaimer in the 1439287Ssos * documentation and/or other materials provided with the distribution. 1539643Syokota * 1639643Syokota * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1739643Syokota * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1839643Syokota * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1939643Syokota * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2039643Syokota * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2139643Syokota * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2239643Syokota * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2339643Syokota * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2439643Syokota * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2539287Ssos * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2639287Ssos */ 27115703Sobrien 28115703Sobrien#ifndef _MM_H_ 29115703Sobrien#define _MM_H_ 3042504Syokota#include <sys/tree.h> 3166710Sjhb 3239287Ssosstruct mm_share { 3356836Speter RB_ENTRY(mm_share) next; 3439287Ssos void *address; 3539287Ssos size_t size; 3639287Ssos}; 3739287Ssos 3842179Syokotastruct mm_master { 3939287Ssos RB_HEAD(mmtree, mm_share) rb_free; 4048104Syokota struct mmtree rb_allocated; 4148104Syokota void *address; 4239287Ssos size_t size; 4348104Syokota 4448104Syokota struct mm_master *mmalloc; /* Used to completely share */ 45130312Sjhb 4639287Ssos int write; /* used to writing to other party */ 4739287Ssos int read; /* used for reading from other party */ 48197383Sdelphij}; 49197025Sdelphij 5039287SsosRB_PROTOTYPE(mmtree, mm_share, next, mm_compare) 5142504Syokota 5242504Syokota#define MM_MINSIZE 128 5339287Ssos 5442504Syokota#define MM_ADDRESS_END(x) (void *)((u_char *)(x)->address + (x)->size) 5542504Syokota 56197383Sdelphijstruct mm_master *mm_create(struct mm_master *, size_t); 57197025Sdelphijvoid mm_destroy(struct mm_master *); 58117710Srobert 59117710Srobertvoid mm_share_sync(struct mm_master **, struct mm_master **); 6042504Syokota 6142611Syokotavoid *mm_malloc(struct mm_master *, size_t); 6242504Syokotavoid *mm_xmalloc(struct mm_master *, size_t); 6342504Syokotavoid mm_free(struct mm_master *, void *); 6439287Ssos 6539287Ssosvoid mm_memvalid(struct mm_master *, void *, size_t); 6639287Ssos#endif /* _MM_H_ */ 6739287Ssos