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zend_fast_cache.h
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2000 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 0.92 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.zend.com/license/0_92.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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_FAST_CACHE_H
#define ZEND_FAST_CACHE_H
#ifndef ZEND_ENABLE_FAST_CACHE
# if ZEND_DEBUG
# define ZEND_ENABLE_FAST_CACHE 0
# else
# define ZEND_ENABLE_FAST_CACHE 1
# endif
#endif
typedef struct _zend_fast_cache_list_entry {
struct _zend_fast_cache_list_entry *next;
} zend_fast_cache_list_entry;
#define MAX_FAST_CACHE_TYPES 4
#define ZVAL_CACHE_LIST 0
#define HASHTABLE_CACHE_LIST 1
#if ZEND_ENABLE_FAST_CACHE
#include "zend_globals.h"
#include "zend_globals_macros.h"
#include "zend_alloc.h"
#if ZEND_DEBUG
# define RECORD_ZVAL_CACHE_HIT(fc_type) AG(fast_cache_stats)[fc_type][1]++;
# define RECORD_ZVAL_CACHE_MISS(fc_type) AG(fast_cache_stats)[fc_type][0]++;
#else
# define RECORD_ZVAL_CACHE_HIT(fc_type)
# define RECORD_ZVAL_CACHE_MISS(fc_type)
#endif
#define ZEND_FAST_ALLOC(p, type, fc_type) \
{ \
ALS_FETCH(); \
\
if (((p) = (type *) AG(fast_cache_list_head)[fc_type])) { \
AG(fast_cache_list_head)[fc_type] = ((zend_fast_cache_list_entry *) AG(fast_cache_list_head)[fc_type])->next; \
RECORD_ZVAL_CACHE_HIT(fc_type); \
} else { \
(p) = (type *) emalloc(sizeof(type)); \
RECORD_ZVAL_CACHE_MISS(fc_type); \
} \
}
#define ZEND_FAST_FREE(p, fc_type) \
{ \
ALS_FETCH(); \
\
((zend_fast_cache_list_entry *) (p))->next = AG(fast_cache_list_head)[fc_type]; \
AG(fast_cache_list_head)[fc_type] = (zend_fast_cache_list_entry *) (p); \
}
#define ZEND_FAST_ALLOC_REL(p, type, fc_type) \
ZEND_FAST_ALLOC(p, type, fc_type)
#define ZEND_FAST_FREE_REL(p, fc_type) \
ZEND_FAST_FREE(p, fc_type)
#else /* !ZEND_ENABLE_FAST_CACHE */
#define ZEND_FAST_ALLOC(p, type, fc_type) \
(p) = (type *) emalloc(sizeof(type))
#define ZEND_FAST_FREE(p, fc_type) \
efree(p)
#define ZEND_FAST_ALLOC_REL(p, type, fc_type) \
(p) = (type *) emalloc_rel(sizeof(type))
#define ZEND_FAST_FREE_REL(p, fc_type) \
efree_rel(p)
#endif /* ZEND_ENABLE_FAST_CACHE */
/* fast cache for zval's */
#define ALLOC_ZVAL(z) \
ZEND_FAST_ALLOC(z, zval, ZVAL_CACHE_LIST)
#define FREE_ZVAL(z) \
ZEND_FAST_FREE(z, ZVAL_CACHE_LIST)
#define ALLOC_ZVAL_REL(z) \
ZEND_FAST_ALLOC_REL(z, zval, ZVAL_CACHE_LIST)
#define FREE_ZVAL_REL(z) \
ZEND_FAST_FREE_REL(z, ZVAL_CACHE_LIST)
/* fast cache for HashTables */
#define ALLOC_HASHTABLE(ht) \
ZEND_FAST_ALLOC(ht, HashTable, HASHTABLE_CACHE_LIST)
#define FREE_HASHTABLE(ht) \
ZEND_FAST_FREE(ht, HASHTABLE_CACHE_LIST)
#define ALLOC_HASHTABLE_REL(ht) \
ZEND_FAST_ALLOC_REL(ht, HashTable, HASHTABLE_CACHE_LIST)
#define FREE_HASHTABLE_REL(ht) \
ZEND_FAST_FREE_REL(ht, HASHTABLE_CACHE_LIST)
#endif /* ZEND_FAST_CACHE_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/