forked from len0rd/rockbox
c25510f944
Conventions :
* Public headers :
memory.h,config.h,defines.h,inlines.h,types.h,functions.h
* Private headers :
memory-page.h,memory-slab.h (here you can find
prototypes functions or structures we want to share
only between memory-page.c, memory-slab.c,
memory-block.c, memory-misc.c).
* Public or private codes in :
memory-page.c,memory-slab.c,memory-block.c,memory-misc.c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@126 a1c6a512-1295-4272-9138-f99709370657
76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Alan Korr
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#if 0
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#include <memory.h>
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#include "memory-page.h"
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#include "memory-slab.h"
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static struct memory_cache *__memory_free_block_cache[MEMORY_PAGE_MINIMAL_ORDER - 2];
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///////////////////////////////////////////////////////////////////////////////
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// MEMORY BLOCK :
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/////////////////
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//
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// - memory_allocate_block : allocate a power-of-2-sized block (or a page)
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// - memory_release_block : release a power-of-2-sized block (or a page)
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//
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static inline void *__memory_allocate_block (int order)
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{
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struct memory_cache *cache = __memory_free_block_cache[order - 2];
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do
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{
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if (cache)
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return memory_cache_allocate (cache);
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}
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while ((__memory_free_block_cache[order] = cache = memory_create_cache (size,0,0)));
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return MEMORY_RETURN_FAILURE;
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}
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void *memory_allocate_block (int order)
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{
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if (order < 2)
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order = 2;
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if (order < MEMORY_PAGE_MINIMAL_ORDER)
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return __memory_allocate_block (order);
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if (order < MEMORY_PAGE_MAXIMAL_ORDER)
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return memory_allocate_page (order);
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return MEMORY_RETURN_FAILURE;
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}
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static inline int __memory_release_block (int order,void *address)
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{
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struct memory_cache *cache = __memory_free_block_cache[order - 2];
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if (cache)
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return memory_cache_release (cache,address);
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return MEMORY_RETURN_FAILURE;
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}
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int memory_release_block (int order,void *address)
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{
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if (order < 2)
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order = 2;
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if (order < MEMORY_PAGE_MINIMAL_ORDER)
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return __memory_release_block (order);
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if (order < MEMORY_PAGE_MAXIMAL_ORDER)
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return memory_release_page (address);
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return MEMORY_RETURN_FAILURE;
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}
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#endif
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