1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Cache
* @subpackage Zend_Cache_Backend
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @see Zend_Cache_Backend_Interface
*/
/**
* @see Zend_Cache_Backend
*/
/**
* @package Zend_Cache
* @subpackage Zend_Cache_Backend
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Cache_Backend_Xcache extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
{
/**
* Log message
*/
const TAGS_UNSUPPORTED_BY_CLEAN_OF_XCACHE_BACKEND = 'Zend_Cache_Backend_Xcache::clean() : tags are unsupported by the Xcache backend';
const TAGS_UNSUPPORTED_BY_SAVE_OF_XCACHE_BACKEND = 'Zend_Cache_Backend_Xcache::save() : tags are unsupported by the Xcache backend';
/**
* Available options
*
* =====> (string) user :
* xcache.admin.user (necessary for the clean() method)
*
* =====> (string) password :
* xcache.admin.pass (clear, not MD5) (necessary for the clean() method)
*
* @var array available options
*/
protected $_options = array(
'user' => null,
'password' => null
);
/**
* Constructor
*
* @param array $options associative array of options
* @throws Zend_Cache_Exception
* @return void
*/
public function __construct(array $options = array())
{
if (!extension_loaded('xcache')) {
Zend_Cache::throwException('The xcache extension must be loaded for using this backend !');
}
parent::__construct($options);
}
/**
* Test if a cache is available for the given id and (if yes) return it (false else)
*
* WARNING $doNotTestCacheValidity=true is unsupported by the Xcache backend
*
* @param string $id cache id
* @param boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
* @return string cached datas (or false)
*/
public function load($id, $doNotTestCacheValidity = false)
{
if ($doNotTestCacheValidity) {
$this->_log("Zend_Cache_Backend_Xcache::load() : \$doNotTestCacheValidity=true is unsupported by the Xcache backend");
}
$tmp = xcache_get($id);
if (is_array($tmp)) {
return $tmp[0];
}
return false;
}
/**
* Test if a cache is available or not (for the given id)
*
* @param string $id cache id
* @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
*/
public function test($id)
{
if (xcache_isset($id)) {
$tmp = xcache_get($id);
if (is_array($tmp)) {
return $tmp[1];
}
}
return false;
}
/**
* Save some string datas into a cache record
*
* Note : $data is always "string" (serialization is done by the
* core not by the backend)
*
* @param string $data datas to cache
* @param string $id cache id
* @param array $tags array of strings, the cache record will be tagged by each string entry
* @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
* @return boolean true if no problem
*/
public function save($data, $id, $tags = array(), $specificLifetime = false)
{
$lifetime = $this->getLifetime($specificLifetime);
$result = xcache_set($id, array($data, time()), $lifetime);
if (count($tags) > 0) {
$this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_XCACHE_BACKEND);
}
return $result;
}
/**
* Remove a cache record
*
* @param string $id cache id
* @return boolean true if no problem
*/
public function remove($id)
{
return xcache_unset($id);
}
/**
* Clean some cache records
*
* Available modes are :
* 'all' (default) => remove all cache entries ($tags is not used)
* 'old' => unsupported
* 'matchingTag' => unsupported
* 'notMatchingTag' => unsupported
* 'matchingAnyTag' => unsupported
*
* @param string $mode clean mode
* @param array $tags array of tags
* @throws Zend_Cache_Exception
* @return boolean true if no problem
*/
public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
{
switch ($mode) {
case Zend_Cache::CLEANING_MODE_ALL:
// Necessary because xcache_clear_cache() need basic authentification
$backup = array();
if (isset($_SERVER['PHP_AUTH_USER'])) {
$backup['PHP_AUTH_USER'] = $_SERVER['PHP_AUTH_USER'];
}
if (isset($_SERVER['PHP_AUTH_PW'])) {
$backup['PHP_AUTH_PW'] = $_SERVER['PHP_AUTH_PW'];
}
if ($this->_options['user']) {
$_SERVER['PHP_AUTH_USER'] = $this->_options['user'];
}
if ($this->_options['password']) {
$_SERVER['PHP_AUTH_PW'] = $this->_options['password'];
}
$cnt = xcache_count(XC_TYPE_VAR);
for ($i=0; $i < $cnt; $i++) {
xcache_clear_cache(XC_TYPE_VAR, $i);
}
if (isset($backup['PHP_AUTH_USER'])) {
$_SERVER['PHP_AUTH_USER'] = $backup['PHP_AUTH_USER'];
$_SERVER['PHP_AUTH_PW'] = $backup['PHP_AUTH_PW'];
}
return true;
break;
case Zend_Cache::CLEANING_MODE_OLD:
$this->_log("Zend_Cache_Backend_Xcache::clean() : CLEANING_MODE_OLD is unsupported by the Xcache backend");
break;
case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
$this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_XCACHE_BACKEND);
break;
default:
Zend_Cache::throwException('Invalid mode for clean() method');
break;
}
}
/**
* Return true if the automatic cleaning is available for the backend
*
* @return boolean
*/
public function isAutomaticCleaningAvailable()
{
return false;
}
}
|
