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files >> //proc/thread-self/root/home/papecmvm/public_html/system/libraries/Cache/drivers/Cache_wincache.php
<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2019, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) * @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/) * @license https://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 3.0.0 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * CodeIgniter Wincache Caching Class * * Read more about Wincache functions here: * http://www.php.net/manual/en/ref.wincache.php * * @package CodeIgniter * @subpackage Libraries * @category Core * @author Mike Murkovic * @link */ class CI_Cache_wincache extends CI_Driver { /** * Class constructor * * Only present so that an error message is logged * if APC is not available. * * @return void */ public function __construct() { if ( ! $this->is_supported()) { log_message('error', 'Cache: Failed to initialize Wincache; extension not loaded/enabled?'); } } // ------------------------------------------------------------------------ /** * Get * * Look for a value in the cache. If it exists, return the data, * if not, return FALSE * * @param string $id Cache Ide * @return mixed Value that is stored/FALSE on failure */ public function get($id) { $success = FALSE; $data = wincache_ucache_get($id, $success); // Success returned by reference from wincache_ucache_get() return ($success) ? $data : FALSE; } // ------------------------------------------------------------------------ /** * Cache Save * * @param string $id Cache ID * @param mixed $data Data to store * @param int $ttl Time to live (in seconds) * @param bool $raw Whether to store the raw value (unused) * @return bool true on success/false on failure */ public function save($id, $data, $ttl = 60, $raw = FALSE) { return wincache_ucache_set($id, $data, $ttl); } // ------------------------------------------------------------------------ /** * Delete from Cache * * @param mixed unique identifier of the item in the cache * @return bool true on success/false on failure */ public function delete($id) { return wincache_ucache_delete($id); } // ------------------------------------------------------------------------ /** * Increment a raw value * * @param string $id Cache ID * @param int $offset Step/value to add * @return mixed New value on success or FALSE on failure */ public function increment($id, $offset = 1) { $success = FALSE; $value = wincache_ucache_inc($id, $offset, $success); return ($success === TRUE) ? $value : FALSE; } // ------------------------------------------------------------------------ /** * Decrement a raw value * * @param string $id Cache ID * @param int $offset Step/value to reduce by * @return mixed New value on success or FALSE on failure */ public function decrement($id, $offset = 1) { $success = FALSE; $value = wincache_ucache_dec($id, $offset, $success); return ($success === TRUE) ? $value : FALSE; } // ------------------------------------------------------------------------ /** * Clean the cache * * @return bool false on failure/true on success */ public function clean() { return wincache_ucache_clear(); } // ------------------------------------------------------------------------ /** * Cache Info * * @return mixed array on success, false on failure */ public function cache_info() { return wincache_ucache_info(TRUE); } // ------------------------------------------------------------------------ /** * Get Cache Metadata * * @param mixed key to get cache metadata on * @return mixed array on success/false on failure */ public function get_metadata($id) { if ($stored = wincache_ucache_info(FALSE, $id)) { $age = $stored['ucache_entries'][1]['age_seconds']; $ttl = $stored['ucache_entries'][1]['ttl_seconds']; $hitcount = $stored['ucache_entries'][1]['hitcount']; return array( 'expire' => $ttl - $age, 'hitcount' => $hitcount, 'age' => $age, 'ttl' => $ttl ); } return FALSE; } // ------------------------------------------------------------------------ /** * is_supported() * * Check to see if WinCache is available on this system, bail if it isn't. * * @return bool */ public function is_supported() { return (extension_loaded('wincache') && ini_get('wincache.ucenabled')); } }
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