1998-09-26 01:42:40 +00:00
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/*
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* This module derived from code donated to the FreeBSD Project by
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* Matthew Dillon <dillon@backplane.com>
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*
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* Copyright (c) 1998 The FreeBSD Project
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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1999-08-28 00:22:10 +00:00
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* $FreeBSD$
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1998-09-26 01:42:40 +00:00
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*/
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/*
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* H/MEM.H
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*
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* Basic memory pool / memory node structures.
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*/
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typedef struct MemNode {
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struct MemNode *mr_Next;
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iaddr_t mr_Bytes;
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} MemNode;
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typedef struct MemPool {
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void *mp_Base;
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void *mp_End;
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MemNode *mp_First;
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iaddr_t mp_Size;
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iaddr_t mp_Used;
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} MemPool;
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#define MEMNODE_SIZE_MASK ((sizeof(MemNode) <= 8) ? 7 : 15)
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#define ZNOTE_FREE 0
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#define ZNOTE_REUSE 1
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