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/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 1998-2006 Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Andi Gutmans <andi@zend.com> | | Zeev Suraski <zeev@zend.com> | +----------------------------------------------------------------------+ */ /* $Id: zend_mm.h,v 1.19.2.1 2006/01/04 23:53:04 andi Exp $ */ #ifndef _ZEND_MM_H #define _ZEND_MM_H #include <sys/types.h> #include "zend.h" #include "zend_types.h" #ifdef ZEND_WIN32 #undef ZEND_MM #else /* #define ZEND_MM */ #undef ZEND_MM #endif /* mm block type */ typedef struct _zend_mm_block { unsigned int size : 31; unsigned int type : 1; size_t prev_size; unsigned int guard_block : 1; } zend_mm_block; typedef struct _zend_mm_free_block { unsigned int size : 31; unsigned int type : 1; size_t prev_size; struct _zend_mm_free_block *prev_free_block; struct _zend_mm_free_block *next_free_block; } zend_mm_free_block; typedef struct _zend_mm_segment { struct _zend_mm_segment *next_segment; } zend_mm_segment; #define ZEND_MM_NUM_BUCKETS 16 #define ZEND_HEAP_MAX_BUCKETS ZEND_MM_NUM_BUCKETS typedef int zend_heap[2*ZEND_HEAP_MAX_BUCKETS-1]; typedef struct _zend_mm_heap { zend_mm_segment *segments_list; size_t block_size; zend_mm_free_block *free_buckets[ZEND_MM_NUM_BUCKETS]; zend_heap heap; } zend_mm_heap; zend_bool zend_mm_startup(zend_mm_heap *heap, size_t block_size); void zend_mm_shutdown(zend_mm_heap *heap); void *zend_mm_alloc(zend_mm_heap *heap, size_t size); void zend_mm_free(zend_mm_heap *heap, void *p); void *zend_mm_realloc(zend_mm_heap *heap, void *p, size_t size); #endif /* _ZEND_MM_H */ /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * indent-tabs-mode: t * End: */