zalloc_mem.h revision 39665
1/* 2 * This module derived from code donated to the FreeBSD Project by 3 * Matthew Dillon <dillon@backplane.com> 4 * 5 * Copyright (c) 1998 The FreeBSD Project 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $Id$ 30 */ 31 32/* 33 * H/MEM.H 34 * 35 * Basic memory pool / memory node structures. 36 */ 37 38typedef struct MemNode { 39 struct MemNode *mr_Next; 40 iaddr_t mr_Bytes; 41} MemNode; 42 43typedef struct MemPool { 44 const char *mp_Ident; 45 void *mp_Base; 46 void *mp_End; 47 MemNode *mp_First; 48 void (*mp_Panic)(const char *ctl, ...); 49 int (*mp_Reclaim)(struct MemPool *memPool, iaddr_t bytes); 50 iaddr_t mp_Size; 51 iaddr_t mp_Used; 52} MemPool; 53 54#define MEMNODE_SIZE_MASK ((sizeof(MemNode) <= 8) ? 7 : 15) 55 56#define INITPOOL(name,panic,reclaim) { name, NULL, NULL, NULL, panic, reclaim } 57 58#define ZNOTE_FREE 0 59#define ZNOTE_REUSE 1 60 61