2 * This module derived from code donated to the FreeBSD Project by
3 * Matthew Dillon <dillon@backplane.com>
5 * Copyright (c) 1998 The FreeBSD Project
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
29 * $FreeBSD: src/lib/libstand/zalloc_defs.h,v 1.6 1999/08/28 00:05:35 peter Exp $
30 * $DragonFly: src/lib/libstand/zalloc_defs.h,v 1.2 2003/06/17 04:26:51 dillon Exp $
37 #define USEGUARD /* use stard/end guard bytes */
39 #define DMALLOCDEBUG /* add debugging code to gather stats */
46 typedef unsigned int iaddr_t; /* unsigned int same size as pointer */
47 typedef int saddr_t; /* signed int same size as pointer */
50 typedef unsigned long iaddr_t; /* unsigned int same size as pointer */
51 typedef long saddr_t; /* signed int same size as pointer */
54 #include "zalloc_mem.h"
56 #define Prototype extern
57 #define Library extern
60 #define NULL ((void *)0)
64 * block extension for sbrk()
67 #define BLKEXTEND (4 * 1024)
68 #define BLKEXTENDMASK (BLKEXTEND - 1)
71 * required malloc alignment. Use sizeof(long double) for architecture
74 * Note: if we implement a more sophisticated realloc, we should ensure that
75 * MALLOCALIGN is at least as large as MemNode.
78 typedef struct Guard {
80 size_t ga_Magic; /* must be at least 32 bits */
83 #define MATYPE long double
84 #define MALLOCALIGN ((sizeof(MATYPE) > sizeof(Guard)) ? sizeof(MATYPE) : sizeof(Guard))
85 #define GAMAGIC 0x55FF44FD
87 #include "zalloc_protos.h"