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