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E:/E/GEAMP/www/openbiz/openbiz/others/Zend/Cache/Backend/ZendServer/ShMem.php

00001 <?php
00025 require_once 'Zend/Cache/Backend/Interface.php';
00026 
00028 require_once 'Zend/Cache/Backend/ZendServer.php';
00029 
00030 
00037 class Zend_Cache_Backend_ZendServer_ShMem extends Zend_Cache_Backend_ZendServer implements Zend_Cache_Backend_Interface
00038 {
00045     public function __construct(array $options = array())
00046     {
00047         if (!function_exists('zend_shm_cache_store')) {
00048             Zend_Cache::throwException('Zend_Cache_ZendServer_ShMem backend has to be used within Zend Server environment.');
00049         }
00050         parent::__construct($options);
00051     }
00052 
00061     protected function _store($data, $id, $timeToLive)
00062     {
00063         if (zend_shm_cache_store($this->_options['namespace'] . '::' . $id,
00064                                   $data,
00065                                   $timeToLive) === false) {
00066             $this->_log('Store operation failed.');
00067             return false;
00068         }
00069         return true;
00070     }
00071 
00077     protected function _fetch($id)
00078     {
00079         return zend_shm_cache_fetch($this->_options['namespace'] . '::' . $id);
00080     }
00081 
00088     protected function _unset($id)
00089     {
00090         return zend_shm_cache_delete($this->_options['namespace'] . '::' . $id);
00091     }
00092 
00096     protected function _clear()
00097     {
00098         zend_shm_cache_clear($this->_options['namespace']);
00099     }
00100 }

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