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/*
+----------------------------------------------------------------------+
| PHP Version 6 |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2008 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Georg Richter <georg@mysql.com> |
| Andrey Hristov <andrey@mysql.com> |
| Ulf Wendel <uwendel@mysql.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef MYSQLND_PALLOC_H
#define MYSQLND_PALLOC_H
/* Used in mysqlnd_debug.c */
extern char * mysqlnd_palloc_zval_ptr_dtor_name;
extern char * mysqlnd_palloc_get_zval_name;
/* Session caching allocator */
struct st_mysqlnd_zval_list {
zval **ptr_line;
zval **last_added;
};
typedef struct st_mysqlnd_zval_cache MYSQLND_ZVAL_CACHE;
struct st_mysqlnd_zval_cache {
struct st_mysqlnd_zval_list *free_list;
unsigned int free_items;
unsigned int max_items;
unsigned int references;
unsigned long get_hits;
unsigned long get_misses;
unsigned long put_hits;
unsigned long put_full_misses;
unsigned long put_refcount_misses;
};
enum mysqlnd_zval_ptr_type
{
MYSQLND_POINTS_INT_BUFFER,
MYSQLND_POINTS_EXT_BUFFER,
MYSQLND_POINTS_FREE
};
/* Persistent caching allocator */
typedef struct st_mysqlnd_zval {
/* Should be first */
zval zv;
enum mysqlnd_zval_ptr_type point_type;
#ifdef ZTS
THREAD_T thread_id;
#endif
} mysqlnd_zval;
typedef struct st_mysqlnd_ndzval_list {
mysqlnd_zval **ptr_line; /* we allocate this, all are pointers to the block */
void *canary1;
void *canary2;
mysqlnd_zval **last_added; /* this points to the ptr_line, and moves left-right. It's our stack */
} mysqlnd_ndzval_list;
struct st_mysqlnd_zval_pcache {
mysqlnd_zval *block;
mysqlnd_zval *last_in_block;
mysqlnd_ndzval_list free_list; /* Fetch from here */
#ifdef ZTS
MUTEX_T LOCK_access;
#endif
unsigned int references;
/* These are just for statistics and not used for operational purposes */
unsigned int free_items;
unsigned int max_items;
unsigned long get_hits;
unsigned long get_misses;
unsigned long put_hits;
unsigned long put_misses;
};
struct st_mysqlnd_thread_zval_pcache {
struct st_mysqlnd_zval_pcache *parent;
unsigned int references;
#ifdef ZTS
THREAD_T thread_id;
#endif
mysqlnd_ndzval_list gc_list; /* GC these from time to time */
};
#endif /* MYSQLND_PALLOC_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|
