1*ca987d46SWarner Losh /* 2*ca987d46SWarner Losh * This module derived from code donated to the FreeBSD Project by 3*ca987d46SWarner Losh * Matthew Dillon <dillon@backplane.com> 4*ca987d46SWarner Losh * 5*ca987d46SWarner Losh * Copyright (c) 1998 The FreeBSD Project 6*ca987d46SWarner Losh * All rights reserved. 7*ca987d46SWarner Losh * 8*ca987d46SWarner Losh * Redistribution and use in source and binary forms, with or without 9*ca987d46SWarner Losh * modification, are permitted provided that the following conditions 10*ca987d46SWarner Losh * are met: 11*ca987d46SWarner Losh * 1. Redistributions of source code must retain the above copyright 12*ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer. 13*ca987d46SWarner Losh * 2. Redistributions in binary form must reproduce the above copyright 14*ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer in the 15*ca987d46SWarner Losh * documentation and/or other materials provided with the distribution. 16*ca987d46SWarner Losh * 17*ca987d46SWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18*ca987d46SWarner Losh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*ca987d46SWarner Losh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*ca987d46SWarner Losh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21*ca987d46SWarner Losh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*ca987d46SWarner Losh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*ca987d46SWarner Losh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*ca987d46SWarner Losh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*ca987d46SWarner Losh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*ca987d46SWarner Losh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*ca987d46SWarner Losh * SUCH DAMAGE. 28*ca987d46SWarner Losh * 29*ca987d46SWarner Losh * $FreeBSD$ 30*ca987d46SWarner Losh */ 31*ca987d46SWarner Losh 32*ca987d46SWarner Losh /* 33*ca987d46SWarner Losh * H/MEM.H 34*ca987d46SWarner Losh * 35*ca987d46SWarner Losh * Basic memory pool / memory node structures. 36*ca987d46SWarner Losh */ 37*ca987d46SWarner Losh 38*ca987d46SWarner Losh typedef struct MemNode { 39*ca987d46SWarner Losh struct MemNode *mr_Next; 40*ca987d46SWarner Losh uintptr_t mr_Bytes; 41*ca987d46SWarner Losh } MemNode; 42*ca987d46SWarner Losh 43*ca987d46SWarner Losh typedef struct MemPool { 44*ca987d46SWarner Losh void *mp_Base; 45*ca987d46SWarner Losh void *mp_End; 46*ca987d46SWarner Losh MemNode *mp_First; 47*ca987d46SWarner Losh uintptr_t mp_Size; 48*ca987d46SWarner Losh uintptr_t mp_Used; 49*ca987d46SWarner Losh } MemPool; 50*ca987d46SWarner Losh 51*ca987d46SWarner Losh #define ZNOTE_FREE 0 52*ca987d46SWarner Losh #define ZNOTE_REUSE 1 53*ca987d46SWarner Losh 54