diff options
Diffstat (limited to 'system/libraries/Cache')
| -rw-r--r-- | system/libraries/Cache/Cache.php | 176 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_apc.php | 45 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_dummy.php | 39 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_file.php | 62 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_memcached.php | 89 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_wincache.php | 162 |
6 files changed, 364 insertions, 209 deletions
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php index 2e78a6660..53f9f81a7 100644 --- a/system/libraries/Cache/Cache.php +++ b/system/libraries/Cache/Cache.php @@ -2,7 +2,7 @@ /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Caching Class * @@ -38,26 +36,87 @@ */ class CI_Cache extends CI_Driver_Library { - protected $valid_drivers = array( - 'cache_apc', 'cache_file', 'cache_memcached', 'cache_dummy' + /** + * Valid cache drivers + * + * @var array + */ + protected $valid_drivers = array( + 'cache_apc', + 'cache_file', + 'cache_memcached', + 'cache_dummy', + 'cache_wincache' ); - protected $_cache_path = NULL; // Path of cache files (if file-based cache) - protected $_adapter = 'dummy'; - protected $_backup_driver; + /** + * Path of cache files (if file-based cache) + * + * @var string + */ + protected $_cache_path = NULL; - // ------------------------------------------------------------------------ + /** + * Reference to the driver + * + * @var mixed + */ + protected $_adapter = 'dummy'; + + /** + * Fallback driver + * + * @param string + */ + protected $_backup_driver = 'dummy'; /** * Constructor * - * @param array + * Initialize class properties based on the configuration array. + * + * @param array + * @return void */ public function __construct($config = array()) { - if ( ! empty($config)) + $default_config = array( + 'adapter', + 'memcached' + ); + + foreach ($default_config as $key) { - $this->_initialize($config); + if (isset($config[$key])) + { + $param = '_'.$key; + + $this->{$param} = $config[$key]; + } + } + + if (isset($config['backup'])) + { + if (in_array('cache_'.$config['backup'], $this->valid_drivers)) + { + $this->_backup_driver = $config['backup']; + } + } + + // If the specified adapter isn't available, check the backup. + if ( ! $this->is_supported($this->_adapter)) + { + if ( ! $this->is_supported($this->_backup_driver)) + { + // Backup isn't supported either. Default to 'Dummy' driver. + log_message('error', 'Cache adapter "'.$this->_adapter.'" and backup "'.$this->_backup_driver.'" are both unavailable. Cache is now using "Dummy" adapter.'); + $this->_adapter = 'dummy'; + } + else + { + // Backup is supported. Set it to primary. + $this->_adapter = $this->_backup_driver; + } } } @@ -66,11 +125,11 @@ class CI_Cache extends CI_Driver_Library { /** * Get * - * Look for a value in the cache. If it exists, return the data + * Look for a value in the cache. If it exists, return the data * if not, return FALSE * - * @param string - * @return mixed value that is stored/FALSE on failure + * @param string + * @return mixed value that is stored/FALSE on failure */ public function get($id) { @@ -82,11 +141,10 @@ class CI_Cache extends CI_Driver_Library { /** * Cache Save * - * @param string Unique Key - * @param mixed Data to store - * @param int Length of time (in seconds) to cache the data - * - * @return boolean true on success/false on failure + * @param string Unique Key + * @param mixed Data to store + * @param int Length of time (in seconds) to cache the data + * @return bool true on success/false on failure */ public function save($id, $data, $ttl = 60) { @@ -98,8 +156,8 @@ class CI_Cache extends CI_Driver_Library { /** * Delete from Cache * - * @param mixed unique identifier of the item in the cache - * @return boolean true on success/false on failure + * @param mixed unique identifier of the item in the cache + * @return bool true on success/false on failure */ public function delete($id) { @@ -111,7 +169,7 @@ class CI_Cache extends CI_Driver_Library { /** * Clean the cache * - * @return boolean false on failure/true on success + * @return bool false on failure/true on success */ public function clean() { @@ -123,8 +181,8 @@ class CI_Cache extends CI_Driver_Library { /** * Cache Info * - * @param string user/filehits - * @return mixed array on success, false on failure + * @param string user/filehits + * @return mixed array on success, false on failure */ public function cache_info($type = 'user') { @@ -136,8 +194,8 @@ class CI_Cache extends CI_Driver_Library { /** * Get Cache Metadata * - * @param mixed key to get cache metadata on - * @return mixed return value from child method + * @param mixed key to get cache metadata on + * @return mixed return value from child method */ public function get_metadata($id) { @@ -147,46 +205,10 @@ class CI_Cache extends CI_Driver_Library { // ------------------------------------------------------------------------ /** - * Initialize - * - * Initialize class properties based on the configuration array. - * - * @param array - * @return void - */ - private function _initialize($config) - { - $default_config = array( - 'adapter', - 'memcached' - ); - - foreach ($default_config as $key) - { - if (isset($config[$key])) - { - $param = '_'.$key; - - $this->{$param} = $config[$key]; - } - } - - if (isset($config['backup'])) - { - if (in_array('cache_'.$config['backup'], $this->valid_drivers)) - { - $this->_backup_driver = $config['backup']; - } - } - } - - // ------------------------------------------------------------------------ - - /** * Is the requested driver supported in this environment? * - * @param string The driver to test. - * @return array + * @param string The driver to test. + * @return array */ public function is_supported($driver) { @@ -200,29 +222,7 @@ class CI_Cache extends CI_Driver_Library { return $support[$driver]; } - // ------------------------------------------------------------------------ - - /** - * __get() - * - * @param child - * @return object - */ - public function __get($child) - { - $obj = parent::__get($child); - - if ( ! $this->is_supported($child)) - { - $this->_adapter = $this->_backup_driver; - } - - return $obj; - } - - // ------------------------------------------------------------------------ } -// End Class /* End of file Cache.php */ -/* Location: ./system/libraries/Cache/Cache.php */ +/* Location: ./system/libraries/Cache/Cache.php */
\ No newline at end of file diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php index a3dd46978..c85034f95 100644 --- a/system/libraries/Cache/drivers/Cache_apc.php +++ b/system/libraries/Cache/drivers/Cache_apc.php @@ -2,7 +2,7 @@ /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter APC Caching Class * @@ -36,23 +34,22 @@ * @author EllisLab Dev Team * @link */ - class CI_Cache_apc extends CI_Driver { /** * Get * - * Look for a value in the cache. If it exists, return the data + * Look for a value in the cache. If it exists, return the data * if not, return FALSE * - * @param string - * @return mixed value that is stored/FALSE on failure + * @param string + * @return mixed value that is stored/FALSE on failure */ public function get($id) { $data = apc_fetch($id); - return (is_array($data)) ? $data[0] : FALSE; + return is_array($data) ? $data[0] : FALSE; } // ------------------------------------------------------------------------ @@ -60,11 +57,11 @@ class CI_Cache_apc extends CI_Driver { /** * Cache Save * - * @param string Unique Key - * @param mixed Data to store - * @param int Length of time (in seconds) to cache the data + * @param string Unique Key + * @param mixed Data to store + * @param int Length of time (in seconds) to cache the data * - * @return boolean true on success/false on failure + * @return bool true on success/false on failure */ public function save($id, $data, $ttl = 60) { @@ -77,8 +74,8 @@ class CI_Cache_apc extends CI_Driver { /** * Delete from Cache * - * @param mixed unique identifier of the item in the cache - * @param boolean true on success/false on failure + * @param mixed unique identifier of the item in the cache + * @return bool true on success/false on failure */ public function delete($id) { @@ -90,7 +87,7 @@ class CI_Cache_apc extends CI_Driver { /** * Clean the cache * - * @return boolean false on failure/true on success + * @return bool false on failure/true on success */ public function clean() { @@ -102,8 +99,8 @@ class CI_Cache_apc extends CI_Driver { /** * Cache Info * - * @param string user/filehits - * @return mixed array on success, false on failure + * @param string user/filehits + * @return mixed array on success, false on failure */ public function cache_info($type = NULL) { @@ -115,8 +112,8 @@ class CI_Cache_apc extends CI_Driver { /** * Get Cache Metadata * - * @param mixed key to get cache metadata on - * @return mixed array on success/false on failure + * @param mixed key to get cache metadata on + * @return mixed array on success/false on failure */ public function get_metadata($id) { @@ -142,10 +139,12 @@ class CI_Cache_apc extends CI_Driver { * is_supported() * * Check to see if APC is available on this system, bail if it isn't. + * + * @return bool */ public function is_supported() { - if ( ! extension_loaded('apc') OR ini_get('apc.enabled') != "1") + if ( ! extension_loaded('apc') OR ! (bool) @ini_get('apc.enabled')) { log_message('error', 'The APC PHP extension must be loaded to use APC Cache.'); return FALSE; @@ -154,11 +153,7 @@ class CI_Cache_apc extends CI_Driver { return TRUE; } - // ------------------------------------------------------------------------ - - } -// End Class /* End of file Cache_apc.php */ -/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
\ No newline at end of file diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php index fcd55da39..3f2b4b956 100644 --- a/system/libraries/Cache/drivers/Cache_dummy.php +++ b/system/libraries/Cache/drivers/Cache_dummy.php @@ -2,7 +2,7 @@ /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Dummy Caching Class * @@ -36,7 +34,6 @@ * @author EllisLab Dev Team * @link */ - class CI_Cache_dummy extends CI_Driver { /** @@ -44,8 +41,8 @@ class CI_Cache_dummy extends CI_Driver { * * Since this is the dummy class, it's always going to return FALSE. * - * @param string - * @return Boolean FALSE + * @param string + * @return bool FALSE */ public function get($id) { @@ -57,11 +54,10 @@ class CI_Cache_dummy extends CI_Driver { /** * Cache Save * - * @param string Unique Key - * @param mixed Data to store - * @param int Length of time (in seconds) to cache the data - * - * @return boolean TRUE, Simulating success + * @param string Unique Key + * @param mixed Data to store + * @param int Length of time (in seconds) to cache the data + * @return bool TRUE, Simulating success */ public function save($id, $data, $ttl = 60) { @@ -73,8 +69,8 @@ class CI_Cache_dummy extends CI_Driver { /** * Delete from Cache * - * @param mixed unique identifier of the item in the cache - * @param boolean TRUE, simulating success + * @param mixed unique identifier of the item in the cache + * @return bool TRUE, simulating success */ public function delete($id) { @@ -86,7 +82,7 @@ class CI_Cache_dummy extends CI_Driver { /** * Clean the cache * - * @return boolean TRUE, simulating success + * @return bool TRUE, simulating success */ public function clean() { @@ -98,8 +94,8 @@ class CI_Cache_dummy extends CI_Driver { /** * Cache Info * - * @param string user/filehits - * @return boolean FALSE + * @param string user/filehits + * @return bool FALSE */ public function cache_info($type = NULL) { @@ -111,8 +107,8 @@ class CI_Cache_dummy extends CI_Driver { /** * Get Cache Metadata * - * @param mixed key to get cache metadata on - * @return boolean FALSE + * @param mixed key to get cache metadata on + * @return bool FALSE */ public function get_metadata($id) { @@ -125,17 +121,14 @@ class CI_Cache_dummy extends CI_Driver { * Is this caching driver supported on the system? * Of course this one is. * - * @return TRUE; + * @return bool TRUE */ public function is_supported() { return TRUE; } - // ------------------------------------------------------------------------ - } -// End Class /* End of file Cache_dummy.php */ -/* Location: ./system/libraries/Cache/drivers/Cache_dummy.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_dummy.php */
\ No newline at end of file diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php index 4a81b0422..ce2c2b13a 100644 --- a/system/libraries/Cache/drivers/Cache_file.php +++ b/system/libraries/Cache/drivers/Cache_file.php @@ -2,7 +2,7 @@ /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Memcached Caching Class * @@ -36,20 +34,26 @@ * @author EllisLab Dev Team * @link */ - class CI_Cache_file extends CI_Driver { + /** + * Directory in which to save cache files + * + * @var string + */ protected $_cache_path; /** - * Constructor + * Initialize file-based cache + * + * @return void */ public function __construct() { $CI =& get_instance(); $CI->load->helper('file'); $path = $CI->config->item('cache_path'); - $this->_cache_path = ($path == '') ? APPPATH.'cache/' : $path; + $this->_cache_path = ($path === '') ? APPPATH.'cache/' : $path; } // ------------------------------------------------------------------------ @@ -57,8 +61,8 @@ class CI_Cache_file extends CI_Driver { /** * Fetch from cache * - * @param mixed unique key id - * @return mixed data on success/false on failure + * @param mixed unique key id + * @return mixed data on success/false on failure */ public function get($id) { @@ -83,23 +87,23 @@ class CI_Cache_file extends CI_Driver { /** * Save into cache * - * @param string unique key - * @param mixed data to store - * @param int length of time (in seconds) the cache is valid - * - Default is 60 seconds - * @return boolean true on success/false on failure + * @param string unique key + * @param mixed data to store + * @param int length of time (in seconds) the cache is valid + * - Default is 60 seconds + * @return bool true on success/false on failure */ public function save($id, $data, $ttl = 60) { $contents = array( - 'time' => time(), - 'ttl' => $ttl, - 'data' => $data - ); + 'time' => time(), + 'ttl' => $ttl, + 'data' => $data + ); if (write_file($this->_cache_path.$id, serialize($contents))) { - @chmod($this->_cache_path.$id, 0777); + @chmod($this->_cache_path.$id, 0660); return TRUE; } @@ -111,12 +115,12 @@ class CI_Cache_file extends CI_Driver { /** * Delete from Cache * - * @param mixed unique identifier of item in cache - * @return boolean true on success/false on failure + * @param mixed unique identifier of item in cache + * @return bool true on success/false on failure */ public function delete($id) { - return (file_exists($this->_cache_path.$id)) ? unlink($this->_cache_path.$id) : FALSE; + return file_exists($this->_cache_path.$id) ? unlink($this->_cache_path.$id) : FALSE; } // ------------------------------------------------------------------------ @@ -124,7 +128,7 @@ class CI_Cache_file extends CI_Driver { /** * Clean the Cache * - * @return boolean false on failure/true on success + * @return bool false on failure/true on success */ public function clean() { @@ -138,8 +142,8 @@ class CI_Cache_file extends CI_Driver { * * Not supported by file-based caching * - * @param string user/filehits - * @return mixed FALSE + * @param string user/filehits + * @return mixed FALSE */ public function cache_info($type = NULL) { @@ -151,8 +155,8 @@ class CI_Cache_file extends CI_Driver { /** * Get Cache Metadata * - * @param mixed key to get cache metadata on - * @return mixed FALSE on failure, array on success. + * @param mixed key to get cache metadata on + * @return mixed FALSE on failure, array on success. */ public function get_metadata($id) { @@ -188,16 +192,14 @@ class CI_Cache_file extends CI_Driver { * * In the file driver, check to see that the cache directory is indeed writable * - * @return boolean + * @return bool */ public function is_supported() { return is_really_writable($this->_cache_path); } - // ------------------------------------------------------------------------ } -// End Class /* End of file Cache_file.php */ -/* Location: ./system/libraries/Cache/drivers/Cache_file.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_file.php */
\ No newline at end of file diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php index ffe6f2ff7..bf90f6197 100644 --- a/system/libraries/Cache/drivers/Cache_memcached.php +++ b/system/libraries/Cache/drivers/Cache_memcached.php @@ -2,7 +2,7 @@ /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Memcached Caching Class * @@ -36,32 +34,39 @@ * @author EllisLab Dev Team * @link */ - class CI_Cache_memcached extends CI_Driver { - private $_memcached; // Holds the memcached object - - protected $_memcache_conf = array( - 'default' => array( - 'default_host' => '127.0.0.1', - 'default_port' => 11211, - 'default_weight' => 1 - ) - ); + /** + * Holds the memcached object + * + * @var object + */ + protected $_memcached; - // ------------------------------------------------------------------------ + /** + * Memcached configuration + * + * @var array + */ + protected $_memcache_conf = array( + 'default' => array( + 'default_host' => '127.0.0.1', + 'default_port' => 11211, + 'default_weight' => 1 + ) + ); /** * Fetch from cache * - * @param mixed unique key id - * @return mixed data on success/false on failure + * @param mixed unique key id + * @return mixed data on success/false on failure */ public function get($id) { $data = $this->_memcached->get($id); - return (is_array($data)) ? $data[0] : FALSE; + return is_array($data) ? $data[0] : FALSE; } // ------------------------------------------------------------------------ @@ -69,18 +74,18 @@ class CI_Cache_memcached extends CI_Driver { /** * Save * - * @param string unique identifier - * @param mixed data being cached - * @param int time to live - * @return boolean true on success, false on failure + * @param string unique identifier + * @param mixed data being cached + * @param int time to live + * @return bool true on success, false on failure */ public function save($id, $data, $ttl = 60) { - if (get_class($this->_memcached) == 'Memcached') + if (get_class($this->_memcached) === 'Memcached') { return $this->_memcached->set($id, array($data, time(), $ttl), $ttl); } - else if (get_class($this->_memcached) == 'Memcache') + elseif (get_class($this->_memcached) === 'Memcache') { return $this->_memcached->set($id, array($data, time(), $ttl), 0, $ttl); } @@ -93,8 +98,8 @@ class CI_Cache_memcached extends CI_Driver { /** * Delete from Cache * - * @param mixed key to be deleted. - * @return boolean true on success, false on failure + * @param mixed key to be deleted. + * @return bool true on success, false on failure */ public function delete($id) { @@ -106,7 +111,7 @@ class CI_Cache_memcached extends CI_Driver { /** * Clean the Cache * - * @return boolean false on failure/true on success + * @return bool false on failure/true on success */ public function clean() { @@ -118,10 +123,9 @@ class CI_Cache_memcached extends CI_Driver { /** * Cache Info * - * @param null type not supported in memcached - * @return mixed array on success, false on failure + * @return mixed array on success, false on failure */ - public function cache_info($type = NULL) + public function cache_info() { return $this->_memcached->getStats(); } @@ -131,8 +135,8 @@ class CI_Cache_memcached extends CI_Driver { /** * Get Cache Metadata * - * @param mixed key to get cache metadata on - * @return mixed FALSE on failure, array on success. + * @param mixed key to get cache metadata on + * @return mixed FALSE on failure, array on success. */ public function get_metadata($id) { @@ -156,8 +160,10 @@ class CI_Cache_memcached extends CI_Driver { /** * Setup memcached. + * + * @return bool */ - private function _setup_memcached() + protected function _setup_memcached() { // Try to load memcached server info from the config file. $CI =& get_instance(); @@ -179,14 +185,13 @@ class CI_Cache_memcached extends CI_Driver { { $this->_memcached = new Memcached(); } - else if (class_exists('Memcache')) + elseif (class_exists('Memcache')) { $this->_memcached = new Memcache(); } else { log_message('error', 'Failed to create object for Memcached Cache; extension not loaded?'); - return FALSE; } @@ -194,20 +199,20 @@ class CI_Cache_memcached extends CI_Driver { { if ( ! array_key_exists('hostname', $cache_server)) { - $cache_server['hostname'] = $this->_default_options['default_host']; + $cache_server['hostname'] = $this->_memcache_conf['default']['default_host']; } if ( ! array_key_exists('port', $cache_server)) { - $cache_server['port'] = $this->_default_options['default_port']; + $cache_server['port'] = $this->_memcache_conf['default']['default_port']; } if ( ! array_key_exists('weight', $cache_server)) { - $cache_server['weight'] = $this->_default_options['default_weight']; + $cache_server['weight'] = $this->_memcache_conf['default']['default_weight']; } - if (get_class($this->_memcached) == 'Memcache') + if (get_class($this->_memcached) === 'Memcache') { // Third parameter is persistance and defaults to TRUE. $this->_memcached->addServer( @@ -237,23 +242,21 @@ class CI_Cache_memcached extends CI_Driver { * * Returns FALSE if memcached is not supported on the system. * If it is, we setup the memcached object & return TRUE + * + * @return bool */ public function is_supported() { if ( ! extension_loaded('memcached') && ! extension_loaded('memcache')) { log_message('error', 'The Memcached Extension must be loaded to use Memcached Cache.'); - return FALSE; } return $this->_setup_memcached(); } - // ------------------------------------------------------------------------ - } -// End Class /* End of file Cache_memcached.php */ -/* Location: ./system/libraries/Cache/drivers/Cache_memcached.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_memcached.php */
\ No newline at end of file diff --git a/system/libraries/Cache/drivers/Cache_wincache.php b/system/libraries/Cache/drivers/Cache_wincache.php new file mode 100644 index 000000000..74048d564 --- /dev/null +++ b/system/libraries/Cache/drivers/Cache_wincache.php @@ -0,0 +1,162 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.1.6 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 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 { + + /** + * Get + * + * Look for a value in the cache. If it exists, return the data, + * if not, return FALSE + * + * @param string + * @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) ? $data : FALSE; + } + + // ------------------------------------------------------------------------ + + /** + * Cache Save + * + * @param string Unique Key + * @param mixed Data to store + * @param int Length of time (in seconds) to cache the data + * @return bool true on success/false on failure + */ + public function save($id, $data, $ttl = 60) + { + return wincache_ucache_set($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($id); + } + + // ------------------------------------------------------------------------ + + /** + * Clean the cache + * + * @return bool false on failure/true on success + */ + public function clean() + { + return wincache_ucache_clear(); + } + + // ------------------------------------------------------------------------ + + /** + * Cache Info + * + * @return mixed array on success, false on failure + */ + public function cache_info() + { + return wincache_ucache_info(TRUE); + } + + // ------------------------------------------------------------------------ + + /** + * Get Cache Metadata + * + * @param mixed key to get cache metadata on + * @return mixed array on success/false on failure + */ + public function get_metadata($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() + { + if ( ! extension_loaded('wincache')) + { + log_message('error', 'The Wincache PHP extension must be loaded to use Wincache Cache.'); + return FALSE; + } + + return TRUE; + } + +} + +/* End of file Cache_wincache.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_wincache.php */
\ No newline at end of file |