diff options
Diffstat (limited to 'system/libraries/Cache/drivers')
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_file.php | 10 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_redis.php | 236 |
2 files changed, 241 insertions, 5 deletions
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php index ce2c2b13a..08231963e 100644 --- a/system/libraries/Cache/drivers/Cache_file.php +++ b/system/libraries/Cache/drivers/Cache_file.php @@ -26,7 +26,7 @@ */ /** - * CodeIgniter Memcached Caching Class + * CodeIgniter File Caching Class * * @package CodeIgniter * @subpackage Libraries @@ -71,7 +71,7 @@ class CI_Cache_file extends CI_Driver { return FALSE; } - $data = unserialize(read_file($this->_cache_path.$id)); + $data = unserialize(file_get_contents($this->_cache_path.$id)); if (time() > $data['time'] + $data['ttl']) { @@ -165,19 +165,19 @@ class CI_Cache_file extends CI_Driver { return FALSE; } - $data = unserialize(read_file($this->_cache_path.$id)); + $data = unserialize(file_get_contents($this->_cache_path.$id)); if (is_array($data)) { $mtime = filemtime($this->_cache_path.$id); - if ( ! isset($data['data']['ttl'])) + if ( ! isset($data['ttl'])) { return FALSE; } return array( - 'expire' => $mtime + $data['data']['ttl'], + 'expire' => $mtime + $data['ttl'], 'mtime' => $mtime ); } diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php new file mode 100644 index 000000000..e4a26b5f0 --- /dev/null +++ b/system/libraries/Cache/drivers/Cache_redis.php @@ -0,0 +1,236 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.2.4 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * 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 + * licensing@ellislab.com so we can send you a copy immediately. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2006 - 2012 EllisLab, Inc. + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) + * @link http://codeigniter.com + * @since Version 3.0 + * @filesource + */ + +/** + * CodeIgniter Redis Caching Class + * + * @package CodeIgniter + * @subpackage Libraries + * @category Core + * @author Anton Lindqvist <anton@qvister.se> + * @link + */ +class CI_Cache_redis extends CI_Driver +{ + /** + * Default config + * + * @static + * @var array + */ + protected static $_default_config = array( + 'host' => '127.0.0.1', + 'password' => NULL, + 'port' => 6379, + 'timeout' => 0 + ); + + /** + * Redis connection + * + * @var Redis + */ + protected $_redis; + + // ------------------------------------------------------------------------ + + /** + * Get cache + * + * @param string Cache key identifier + * @return mixed + */ + public function get($key) + { + return $this->_redis->get($key); + } + + // ------------------------------------------------------------------------ + + /** + * Save cache + * + * @param string Cache key identifier + * @param mixed Data to save + * @param int Time to live + * @return bool + */ + public function save($key, $value, $ttl = NULL) + { + return ($ttl) + ? $this->_redis->setex($key, $ttl, $value) + : $this->_redis->set($key, $value); + } + + // ------------------------------------------------------------------------ + + /** + * Delete from cache + * + * @param string Cache key + * @return bool + */ + public function delete($key) + { + return ($this->_redis->delete($key) === 1); + } + + // ------------------------------------------------------------------------ + + /** + * Clean cache + * + * @return bool + * @see Redis::flushDB() + */ + public function clean() + { + return $this->_redis->flushDB(); + } + + // ------------------------------------------------------------------------ + + /** + * Get cache driver info + * + * @param string Not supported in Redis. + * Only included in order to offer a + * consistent cache API. + * @return array + * @see Redis::info() + */ + public function cache_info($type = NULL) + { + return $this->_redis->info(); + } + + // ------------------------------------------------------------------------ + + /** + * Get cache metadata + * + * @param string Cache key + * @return array + */ + public function get_metadata($key) + { + $value = $this->get($key); + + if ($value) + { + return array( + 'expire' => time() + $this->_redis->ttl($key), + 'data' => $value + ); + } + + return FALSE; + } + + // ------------------------------------------------------------------------ + + /** + * Check if Redis driver is supported + * + * @return bool + */ + public function is_supported() + { + if (extension_loaded('redis')) + { + $this->_setup_redis(); + return TRUE; + } + else + { + log_message('error', 'The Redis extension must be loaded to use Redis cache.'); + return FALSE; + } + } + + // ------------------------------------------------------------------------ + + /** + * Setup Redis config and connection + * + * Loads Redis config file if present. Will halt execution + * if a Redis connection can't be established. + * + * @return bool + * @see Redis::connect() + */ + protected function _setup_redis() + { + $config = array(); + $CI =& get_instance(); + + if ($CI->config->load('redis', TRUE, TRUE)) + { + $config += $CI->config->item('redis'); + } + + $config = array_merge(self::$_default_config, $config); + + $this->_redis = new Redis(); + + try + { + $this->_redis->connect($config['host'], $config['port'], $config['timeout']); + } + catch (RedisException $e) + { + show_error('Redis connection refused. ' . $e->getMessage()); + } + + if (isset($config['password'])) + { + $this->_redis->auth($config['password']); + } + } + + // ------------------------------------------------------------------------ + + /** + + * Class destructor + * + * Closes the connection to Redis if present. + * + * @return void + */ + public function __destruct() + { + if ($this->_redis) + { + $this->_redis->close(); + } + } + +} + +/* End of file Cache_redis.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_redis.php */
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