de81e76acb
In C90, NULL is guaranteed to be declared in <stddef.h> and also in <string.h>. Though the correct way to define NULL in FreeBSD is to include <sys/_null.h>, other parts of libstand still require <string.h> to build; therefore, we keep <string.h> in stand.h and add a note about this; - Removing no longer used 'Prototype' definition. Quote from bde@: 'Cruft related to getting incomplete struct declarations within prototypes forward-declared before the structs. It doesn't mean "prototype" but only part of a prototype-related hack. No longer used.' - Replacing iaddr_t with uintptr_t; - Removing use of long double to determine alignment. Use a fixed 16 byte alignment instead; Reviewed by: bde Obtained from: DragonFlyBSD (partially) MFC after: 1 month
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/*
|
|
* This module derived from code donated to the FreeBSD Project by
|
|
* Matthew Dillon <dillon@backplane.com>
|
|
*
|
|
* Copyright (c) 1998 The FreeBSD Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* H/MEM.H
|
|
*
|
|
* Basic memory pool / memory node structures.
|
|
*/
|
|
|
|
typedef struct MemNode {
|
|
struct MemNode *mr_Next;
|
|
uintptr_t mr_Bytes;
|
|
} MemNode;
|
|
|
|
typedef struct MemPool {
|
|
void *mp_Base;
|
|
void *mp_End;
|
|
MemNode *mp_First;
|
|
uintptr_t mp_Size;
|
|
uintptr_t mp_Used;
|
|
} MemPool;
|
|
|
|
#define MEMNODE_SIZE_MASK ((sizeof(MemNode) <= 8) ? 7 : 15)
|
|
|
|
#define ZNOTE_FREE 0
|
|
#define ZNOTE_REUSE 1
|
|
|