summaryrefslogtreecommitdiffstats
path: root/system/libraries/Cache/drivers/Cache_memcached.php
diff options
context:
space:
mode:
authorFlorian Pritz <bluewind@xinu.at>2017-09-26 13:46:14 +0200
committerFlorian Pritz <bluewind@xinu.at>2017-09-26 13:46:14 +0200
commit3ff6ffa3341c876b741feb66552cdd110b67872e (patch)
tree69e11cd0009ddd1346f2dc4cd8c47244368db28e /system/libraries/Cache/drivers/Cache_memcached.php
parentbc2f7f596f727e204e8b8c5b849545745b3cbfaa (diff)
parent81a4c8c630ef59cffea0c24e64fb6fa7f09bfcf6 (diff)
Merge CodeIgniter 3 support
Diffstat (limited to 'system/libraries/Cache/drivers/Cache_memcached.php')
-rw-r--r--system/libraries/Cache/drivers/Cache_memcached.php277
1 files changed, 183 insertions, 94 deletions
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index f9d578b93..b642a2c03 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -1,19 +1,41 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP
*
- * @package CodeIgniter
- * @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2006 - 2014 EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
- * @link http://codeigniter.com
- * @since Version 2.0
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014 - 2017, 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 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
+ * @license http://opensource.org/licenses/MIT MIT License
+ * @link https://codeigniter.com
+ * @since Version 2.0
* @filesource
*/
-
-// ------------------------------------------------------------------------
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* CodeIgniter Memcached Caching Class
@@ -21,35 +43,105 @@
* @package CodeIgniter
* @subpackage Libraries
* @category Core
- * @author ExpressionEngine Dev Team
+ * @author EllisLab Dev Team
* @link
*/
-
class CI_Cache_memcached extends CI_Driver {
- private $_memcached; // Holds the memcached object
+ /**
+ * Holds the memcached object
+ *
+ * @var object
+ */
+ protected $_memcached;
+
+ /**
+ * Memcached configuration
+ *
+ * @var array
+ */
+ protected $_config = array(
+ 'default' => array(
+ 'host' => '127.0.0.1',
+ 'port' => 11211,
+ 'weight' => 1
+ )
+ );
+
+ // ------------------------------------------------------------------------
- protected $_memcache_conf = array(
- 'default' => array(
- 'default_host' => '127.0.0.1',
- 'default_port' => 11211,
- 'default_weight' => 1
- )
+ /**
+ * Class constructor
+ *
+ * Setup Memcache(d)
+ *
+ * @return void
+ */
+ public function __construct()
+ {
+ // Try to load memcached server info from the config file.
+ $CI =& get_instance();
+ $defaults = $this->_config['default'];
+
+ if ($CI->config->load('memcached', TRUE, TRUE))
+ {
+ $this->_config = $CI->config->config['memcached'];
+ }
+
+ if (class_exists('Memcached', FALSE))
+ {
+ $this->_memcached = new Memcached();
+ }
+ elseif (class_exists('Memcache', FALSE))
+ {
+ $this->_memcached = new Memcache();
+ }
+ else
+ {
+ log_message('error', 'Cache: Failed to create Memcache(d) object; extension not loaded?');
+ return;
+ }
+
+ foreach ($this->_config as $cache_server)
+ {
+ isset($cache_server['hostname']) OR $cache_server['hostname'] = $defaults['host'];
+ isset($cache_server['port']) OR $cache_server['port'] = $defaults['port'];
+ isset($cache_server['weight']) OR $cache_server['weight'] = $defaults['weight'];
+
+ if ($this->_memcached instanceof Memcache)
+ {
+ // Third parameter is persistence and defaults to TRUE.
+ $this->_memcached->addServer(
+ $cache_server['hostname'],
+ $cache_server['port'],
+ TRUE,
+ $cache_server['weight']
);
+ }
+ elseif ($this->_memcached instanceof Memcached)
+ {
+ $this->_memcached->addServer(
+ $cache_server['hostname'],
+ $cache_server['port'],
+ $cache_server['weight']
+ );
+ }
+ }
+ }
// ------------------------------------------------------------------------
/**
* Fetch from cache
*
- * @param mixed unique key id
- * @return mixed data on success/false on failure
+ * @param string $id Cache ID
+ * @return mixed Data on success, FALSE on failure
*/
public function get($id)
{
$data = $this->_memcached->get($id);
- return (is_array($data)) ? $data[0] : FALSE;
+ return is_array($data) ? $data[0] : $data;
}
// ------------------------------------------------------------------------
@@ -57,20 +149,26 @@ 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 $id Cache ID
+ * @param mixed $data Data being cached
+ * @param int $ttl Time to live
+ * @param bool $raw Whether to store the raw value
+ * @return bool TRUE on success, FALSE on failure
*/
- public function save($id, $data, $ttl = 60)
+ public function save($id, $data, $ttl = 60, $raw = FALSE)
{
- if (get_class($this->_memcached) == 'Memcached')
+ if ($raw !== TRUE)
{
- return $this->_memcached->set($id, array($data, time(), $ttl), $ttl);
+ $data = array($data, time(), $ttl);
}
- else if (get_class($this->_memcached) == 'Memcache')
+
+ if ($this->_memcached instanceof Memcached)
+ {
+ return $this->_memcached->set($id, $data, $ttl);
+ }
+ elseif ($this->_memcached instanceof Memcache)
{
- return $this->_memcached->set($id, array($data, time(), $ttl), 0, $ttl);
+ return $this->_memcached->set($id, $data, 0, $ttl);
}
return FALSE;
@@ -81,8 +179,8 @@ 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 $id key to be deleted.
+ * @return bool true on success, false on failure
*/
public function delete($id)
{
@@ -92,9 +190,37 @@ class CI_Cache_memcached extends CI_Driver {
// ------------------------------------------------------------------------
/**
+ * 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)
+ {
+ return $this->_memcached->increment($id, $offset);
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * 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)
+ {
+ return $this->_memcached->decrement($id, $offset);
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
* Clean the Cache
*
- * @return boolean false on failure/true on success
+ * @return bool false on failure/true on success
*/
public function clean()
{
@@ -106,10 +232,9 @@ class CI_Cache_memcached extends CI_Driver {
/**
* Cache Info
*
- * @param null type not supported in memcached
- * @return mixed array on success, false on failure
+ * @return mixed array on success, false on failure
*/
- public function cache_info($type = NULL)
+ public function cache_info()
{
return $this->_memcached->getStats();
}
@@ -119,8 +244,8 @@ 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 $id key to get cache metadata on
+ * @return mixed FALSE on failure, array on success.
*/
public function get_metadata($id)
{
@@ -143,72 +268,36 @@ class CI_Cache_memcached extends CI_Driver {
// ------------------------------------------------------------------------
/**
- * Setup memcached.
+ * Is supported
+ *
+ * Returns FALSE if memcached is not supported on the system.
+ * If it is, we setup the memcached object & return TRUE
+ *
+ * @return bool
*/
- private function _setup_memcached()
+ public function is_supported()
{
- // Try to load memcached server info from the config file.
- $CI =& get_instance();
- if ($CI->config->load('memcached', TRUE, TRUE))
- {
- if (is_array($CI->config->config['memcached']))
- {
- $this->_memcache_conf = NULL;
-
- foreach ($CI->config->config['memcached'] as $name => $conf)
- {
- $this->_memcache_conf[$name] = $conf;
- }
- }
- }
-
- $this->_memcached = new Memcached();
-
- foreach ($this->_memcache_conf as $name => $cache_server)
- {
- if ( ! array_key_exists('hostname', $cache_server))
- {
- $cache_server['hostname'] = $this->_default_options['default_host'];
- }
-
- if ( ! array_key_exists('port', $cache_server))
- {
- $cache_server['port'] = $this->_default_options['default_port'];
- }
-
- if ( ! array_key_exists('weight', $cache_server))
- {
- $cache_server['weight'] = $this->_default_options['default_weight'];
- }
-
- $this->_memcached->addServer(
- $cache_server['hostname'], $cache_server['port'], $cache_server['weight']
- );
- }
+ return (extension_loaded('memcached') OR extension_loaded('memcache'));
}
// ------------------------------------------------------------------------
-
/**
- * Is supported
+ * Class destructor
*
- * Returns FALSE if memcached is not supported on the system.
- * If it is, we setup the memcached object & return TRUE
+ * Closes the connection to Memcache(d) if present.
+ *
+ * @return void
*/
- public function is_supported()
+ public function __destruct()
{
- if ( ! extension_loaded('memcached'))
+ if ($this->_memcached instanceof Memcache)
{
- log_message('error', 'The Memcached Extension must be loaded to use Memcached Cache.');
- return FALSE;
+ $this->_memcached->close();
+ }
+ elseif ($this->_memcached instanceof Memcached && method_exists($this->_memcached, 'quit'))
+ {
+ $this->_memcached->quit();
}
-
- $this->_setup_memcached();
- return TRUE;
}
-
}
-
-/* End of file Cache_memcached.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_memcached.php */ \ No newline at end of file