text: /*
     +----------------------------------------------------------------------+
     | Zend Engine                                                          |
     +----------------------------------------------------------------------+
     | Copyright (c) 1998-2003 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>                                |
     +----------------------------------------------------------------------+
  */
  
  
  #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 0
  # 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)								\
  	{																\
  		TSRMLS_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)										\
  	{																\
  		TSRMLS_FETCH();												\
  																	\
  		((zend_fast_cache_list_entry *) (p))->next = (zend_fast_cache_list_entry *) 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:
   */
  