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freebsd-dev/stand/libsa/zalloc_mem.h

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Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
/*
loader: cstyle cleanup libsa zalloc sources Clean up libstand zalloc* sources. Note that it is not 100% whitespace cleanup. I also reduced block in znalloc and zfree as those were obvious simplifications and did help to save one level of indent.
2019-09-17 11:35:53 +00:00
* This module derived from code donated to the FreeBSD Project by
Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
* 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.
*
$Id$ -> $FreeBSD$
1999-08-28 00:22:10 +00:00
* $FreeBSD$
Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
*/
/*
* H/MEM.H
*
* Basic memory pool / memory node structures.
*/
loader: cstyle cleanup libsa zalloc sources Clean up libstand zalloc* sources. Note that it is not 100% whitespace cleanup. I also reduced block in znalloc and zfree as those were obvious simplifications and did help to save one level of indent.
2019-09-17 11:35:53 +00:00
#ifndef _ZALLOC_MEM_H
#define _ZALLOC_MEM_H
Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
typedef struct MemNode {
loader: cstyle cleanup libsa zalloc sources Clean up libstand zalloc* sources. Note that it is not 100% whitespace cleanup. I also reduced block in znalloc and zfree as those were obvious simplifications and did help to save one level of indent.
2019-09-17 11:35:53 +00:00
struct MemNode *mr_Next;
uintptr_t mr_Bytes;
Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
} MemNode;
typedef struct MemPool {
loader: cstyle cleanup libsa zalloc sources Clean up libstand zalloc* sources. Note that it is not 100% whitespace cleanup. I also reduced block in znalloc and zfree as those were obvious simplifications and did help to save one level of indent.
2019-09-17 11:35:53 +00:00
void *mp_Base;
void *mp_End;
MemNode *mp_First;
uintptr_t mp_Size;
uintptr_t mp_Used;
Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
} MemPool;
loader: cstyle cleanup libsa zalloc sources Clean up libstand zalloc* sources. Note that it is not 100% whitespace cleanup. I also reduced block in znalloc and zfree as those were obvious simplifications and did help to save one level of indent.
2019-09-17 11:35:53 +00:00
#define ZNOTE_FREE 0
#define ZNOTE_REUSE 1
Replace the old and extremely icky Mach/NetBSD allocator with a similarly compact and much better one donated by Matt Dillon. Implement a simple sbrk() which uses the existing setheap() api. Remove the custom allocator from the UFS code. It wasn't working quite right, and it shouldn't be needed with the new allocator. Fix a serious problem with changing the value of already-existent environment variables. Don't attempt to modify the supposedly-const argument to putenv() Fix an off-by-one sizing error in the zipfs code detected by the new allocator. Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00
loader: cstyle cleanup libsa zalloc sources Clean up libstand zalloc* sources. Note that it is not 100% whitespace cleanup. I also reduced block in znalloc and zfree as those were obvious simplifications and did help to save one level of indent.
2019-09-17 11:35:53 +00:00
#endif /* _ZALLOC_MEM_H */
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