1: <?php
2: /**
3: * Cache engine For XOOPS
4: *
5: * You may not change or alter any portion of this comment or credits
6: * of supporting developers from this source code or any supporting source code
7: * which is considered copyrighted (c) material of the original comment or credit authors.
8: * This program is distributed in the hope that it will be useful,
9: * but WITHOUT ANY WARRANTY; without even the implied warranty of
10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11: *
12: * @copyright (c) 2000-2016 XOOPS Project (www.xoops.org)
13: * @license GNU GPL 2 (http://www.gnu.org/licenses/gpl-2.0.html)
14: * @package class
15: * @subpackage cache
16: * @since 2.3.0
17: * @author Taiwen Jiang <phppp@users.sourceforge.net>
18: */
19: defined('XOOPS_ROOT_PATH') || exit('Restricted access');
20:
21: /**
22: * APC storage engine for cache.
23: *
24: *
25: * PHP versions 4 and 5
26: *
27: * CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
28: * Copyright 2005-2008, Cake Software Foundation, Inc.
29: * 1785 E. Sahara Avenue, Suite 490-204
30: * Las Vegas, Nevada 89104
31: *
32: * Licensed under The MIT License
33: * Redistributions of files must retain the above copyright notice.
34: *
35: * @filesource
36: * @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
37: * @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
38: * @package cake
39: * @subpackage cake.cake.libs.cache
40: * @since CakePHP(tm) v 1.2.0.4933
41: * @modifiedby $LastChangedBy$
42: * @lastmodified $Date$
43: * @license http://www.opensource.org/licenses/mit-license.php The MIT License
44: */
45:
46: /**
47: * APC storage engine for cache
48: *
49: * @package cake
50: * @subpackage cake.cake.libs.cache
51: */
52: class XoopsCacheApc extends XoopsCacheEngine
53: {
54: /**
55: * Initialize the Cache Engine
56: *
57: * Called automatically by the cache frontend
58: * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
59: *
60: * @param array $settings array of setting for the engine
61: *
62: * @return boolean True if the engine has been successfully initialized, false if not
63: * @see CacheEngine::__defaults
64: * @access public
65: */
66: public function init($settings = array())
67: {
68: parent::init($settings);
69:
70: return function_exists('apc_cache_info');
71: }
72:
73: /**
74: * Write data for key into cache
75: *
76: * @param string $key Identifier for the data
77: * @param mixed $value Data to be cached
78: * @param integer $duration How long to cache the data, in seconds
79: * @return boolean True if the data was successfully cached, false on failure
80: * @access public
81: */
82: public function write($key, $value, $duration = null)
83: {
84: return apc_store($key, $value, $duration);
85: }
86:
87: /**
88: * Read a key from the cache
89: *
90: * @param string $key Identifier for the data
91: * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
92: * @access public
93: */
94: public function read($key)
95: {
96: return apc_fetch($key);
97: }
98:
99: /**
100: * Delete a key from the cache
101: *
102: * @param string $key Identifier for the data
103: * @return boolean True if the value was successfully deleted, false if it didn't exist or couldn't be removed
104: * @access public
105: */
106: public function delete($key)
107: {
108: return apc_delete($key);
109: }
110:
111: /**
112: * Delete all keys from the cache
113: *
114: * @return boolean True if the cache was successfully cleared, false otherwise
115: * @access public
116: */
117: public function clear($check = null)
118: {
119: return apc_clear_cache('user');
120: }
121: }
122: