1 /* $OpenBSD: monitor_mm.h,v 1.5 2008/04/29 11:20:31 otto Exp $ */ 2 3 /* 4 * Copyright 2002 Niels Provos <provos (at) citi.umich.edu> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef _MM_H_ 29 #define _MM_H_ 30 31 struct mm_share { 32 RB_ENTRY(mm_share) next; 33 void *address; 34 size_t size; 35 }; 36 37 struct mm_master { 38 RB_HEAD(mmtree, mm_share) rb_free; 39 struct mmtree rb_allocated; 40 void *address; 41 size_t size; 42 43 struct mm_master *mmalloc; /* Used to completely share */ 44 }; 45 46 RB_PROTOTYPE(mmtree, mm_share, next, mm_compare) 47 48 #define MM_MINSIZE 128 49 50 #define MM_ADDRESS_END(x) (void *)((u_char *)(x)->address + (x)->size) 51 52 struct mm_master *mm_create(struct mm_master *, size_t); 53 void mm_destroy(struct mm_master *); 54 55 void mm_share_sync(struct mm_master **, struct mm_master **); 56 57 void *mm_malloc(struct mm_master *, size_t); 58 void *mm_xmalloc(struct mm_master *, size_t); 59 void mm_free(struct mm_master *, void *); 60 61 void mm_memvalid(struct mm_master *, void *, size_t); 62 #endif /* _MM_H_ */ 63
