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103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
#ifndef ZEND_MM_STRUCTS_H
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#define ZEND_MM_STRUCTS_H
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/* structs and macros defined in Zend/zend_alloc.c
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Needed for realizing watchpoints and sigsafe memory */
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#include "zend.h"
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#ifndef ZEND_MM_COOKIES
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# define ZEND_MM_COOKIES ZEND_DEBUG
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#endif
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#define ZEND_MM_CACHE 1
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#ifndef ZEND_MM_CACHE_STAT
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# define ZEND_MM_CACHE_STAT 0
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#endif
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typedef struct _zend_mm_block_info {
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#if ZEND_MM_COOKIES
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size_t _cookie;
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#endif
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size_t _size;
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size_t _prev;
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} zend_mm_block_info;
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typedef struct _zend_mm_small_free_block {
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zend_mm_block_info info;
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#if ZEND_DEBUG
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unsigned int magic;
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#ifdef ZTS
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THREAD_T thread_id;
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#endif
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#endif
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struct _zend_mm_free_block *prev_free_block;
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struct _zend_mm_free_block *next_free_block;
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} zend_mm_small_free_block;
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typedef struct _zend_mm_free_block {
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zend_mm_block_info info;
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#if ZEND_DEBUG
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unsigned int magic;
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#ifdef ZTS
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THREAD_T thread_id;
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#endif
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#endif
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struct _zend_mm_free_block *prev_free_block;
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struct _zend_mm_free_block *next_free_block;
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struct _zend_mm_free_block **parent;
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struct _zend_mm_free_block *child[2];
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} zend_mm_free_block;
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#define ZEND_MM_SMALL_FREE_BUCKET(heap, index) \
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(zend_mm_free_block *) ((char *)&heap->free_buckets[index * 2] + \
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sizeof(zend_mm_free_block *) * 2 - \
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sizeof(zend_mm_small_free_block))
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#define ZEND_MM_REST_BUCKET(heap) \
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(zend_mm_free_block *)((char *)&heap->rest_buckets[0] + \
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sizeof(zend_mm_free_block *) * 2 - \
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sizeof(zend_mm_small_free_block))
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#define ZEND_MM_NUM_BUCKETS (sizeof(size_t) << 3)
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struct _zend_mm_heap {
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int use_zend_alloc;
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void *(*_malloc)(size_t);
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void (*_free)(void *);
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void *(*_realloc)(void *, size_t);
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size_t free_bitmap;
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size_t large_free_bitmap;
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size_t block_size;
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size_t compact_size;
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zend_mm_segment *segments_list;
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zend_mm_storage *storage;
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size_t real_size;
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size_t real_peak;
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size_t limit;
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size_t size;
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size_t peak;
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size_t reserve_size;
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void *reserve;
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int overflow;
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int internal;
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#if ZEND_MM_CACHE
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unsigned int cached;
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zend_mm_free_block *cache[ZEND_MM_NUM_BUCKETS];
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#endif
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zend_mm_free_block *free_buckets[ZEND_MM_NUM_BUCKETS*2];
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zend_mm_free_block *large_free_buckets[ZEND_MM_NUM_BUCKETS];
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zend_mm_free_block *rest_buckets[2];
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int rest_count;
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#if ZEND_MM_CACHE_STAT
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struct {
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int count;
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int max_count;
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int hit;
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int miss;
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} cache_stat[ZEND_MM_NUM_BUCKETS+1];
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#endif
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};
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#endif
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