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-rw-r--r--system/libraries/Cache/drivers/Cache_redis.php148
1 files changed, 75 insertions, 73 deletions
diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php
index d7dca1973..bb26b3b47 100644
--- a/system/libraries/Cache/drivers/Cache_redis.php
+++ b/system/libraries/Cache/drivers/Cache_redis.php
@@ -6,7 +6,7 @@
*
* This content is released under the MIT License (MIT)
*
- * Copyright (c) 2014 - 2015, British Columbia Institute of Technology
+ * 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
@@ -28,10 +28,10 @@
*
* @package CodeIgniter
* @author EllisLab Dev Team
- * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
- * @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
+ * @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 http://codeigniter.com
+ * @link https://codeigniter.com
* @since Version 3.0.0
* @filesource
*/
@@ -55,11 +55,11 @@ class CI_Cache_redis extends CI_Driver
* @var array
*/
protected static $_default_config = array(
- 'socket_type' => 'tcp',
'host' => '127.0.0.1',
'password' => NULL,
'port' => 6379,
- 'timeout' => 0
+ 'timeout' => 0,
+ 'database' => 0
);
/**
@@ -69,13 +69,6 @@ class CI_Cache_redis extends CI_Driver
*/
protected $_redis;
- /**
- * An internal cache for storing keys of serialized values.
- *
- * @var array
- */
- protected $_serialized = array();
-
// ------------------------------------------------------------------------
/**
@@ -91,46 +84,46 @@ class CI_Cache_redis extends CI_Driver
*/
public function __construct()
{
- $config = array();
+ if ( ! $this->is_supported())
+ {
+ log_message('error', 'Cache: Failed to create Redis object; extension not loaded?');
+ return;
+ }
+
$CI =& get_instance();
if ($CI->config->load('redis', TRUE, TRUE))
{
- $config = $CI->config->item('redis');
+ $config = array_merge(self::$_default_config, $CI->config->item('redis'));
+ }
+ else
+ {
+ $config = self::$_default_config;
}
- $config = array_merge(self::$_default_config, $config);
$this->_redis = new Redis();
try
{
- if ($config['socket_type'] === 'unix')
+ if ( ! $this->_redis->connect($config['host'], ($config['host'][0] === '/' ? 0 : $config['port']), $config['timeout']))
{
- $success = $this->_redis->connect($config['socket']);
+ log_message('error', 'Cache: Redis connection failed. Check your configuration.');
}
- else // tcp socket
+
+ if (isset($config['password']) && ! $this->_redis->auth($config['password']))
{
- $success = $this->_redis->connect($config['host'], $config['port'], $config['timeout']);
+ log_message('error', 'Cache: Redis authentication failed.');
}
- if ( ! $success)
+ if (isset($config['database']) && $config['database'] > 0 && ! $this->_redis->select($config['database']))
{
- throw new RuntimeException('Cache: Redis connection failed. Check your configuration.');
+ log_message('error', 'Cache: Redis select database failed.');
}
}
catch (RedisException $e)
{
- throw new RuntimeException('Cache: Redis connection refused ('.$e->getMessage().')');
+ log_message('error', 'Cache: Redis connection refused ('.$e->getMessage().')');
}
-
- if (isset($config['password']) && ! $this->_redis->auth($config['password']))
- {
- throw new RuntimeException('Cache: Redis authentication failed.');
- }
-
- // Initialize the index of serialized values.
- $serialized = $this->_redis->sMembers('_ci_redis_serialized');
- empty($serialized) OR $this->_serialized = array_flip($serialized);
}
// ------------------------------------------------------------------------
@@ -138,19 +131,35 @@ class CI_Cache_redis extends CI_Driver
/**
* Get cache
*
- * @param string Cache ID
+ * @param string $key Cache ID
* @return mixed
*/
public function get($key)
{
- $value = $this->_redis->get($key);
+ $data = $this->_redis->hMGet($key, array('__ci_type', '__ci_value'));
- if ($value !== FALSE && isset($this->_serialized[$key]))
+ if ( ! isset($data['__ci_type'], $data['__ci_value']) OR $data['__ci_value'] === FALSE)
{
- return unserialize($value);
+ return FALSE;
}
- return $value;
+ switch ($data['__ci_type'])
+ {
+ case 'array':
+ case 'object':
+ return unserialize($data['__ci_value']);
+ case 'boolean':
+ case 'integer':
+ case 'double': // Yes, 'double' is returned and NOT 'float'
+ case 'string':
+ case 'NULL':
+ return settype($data['__ci_value'], $data['__ci_type'])
+ ? $data['__ci_value']
+ : FALSE;
+ case 'resource':
+ default:
+ return FALSE;
+ }
}
// ------------------------------------------------------------------------
@@ -166,23 +175,33 @@ class CI_Cache_redis extends CI_Driver
*/
public function save($id, $data, $ttl = 60, $raw = FALSE)
{
- if (is_array($data) OR is_object($data))
+ switch ($data_type = gettype($data))
{
- if ( ! $this->_redis->sIsMember('_ci_redis_serialized', $id) && ! $this->_redis->sAdd('_ci_redis_serialized', $id))
- {
+ case 'array':
+ case 'object':
+ $data = serialize($data);
+ break;
+ case 'boolean':
+ case 'integer':
+ case 'double': // Yes, 'double' is returned and NOT 'float'
+ case 'string':
+ case 'NULL':
+ break;
+ case 'resource':
+ default:
return FALSE;
- }
+ }
- isset($this->_serialized[$id]) OR $this->_serialized[$id] = TRUE;
- $data = serialize($data);
+ if ( ! $this->_redis->hMSet($id, array('__ci_type' => $data_type, '__ci_value' => $data)))
+ {
+ return FALSE;
}
- elseif (isset($this->_serialized[$id]))
+ elseif ($ttl)
{
- $this->_serialized[$id] = NULL;
- $this->_redis->sRemove('_ci_redis_serialized', $id);
+ $this->_redis->expireAt($id, time() + $ttl);
}
- return $this->_redis->set($id, $data, $ttl);
+ return TRUE;
}
// ------------------------------------------------------------------------
@@ -190,23 +209,12 @@ class CI_Cache_redis extends CI_Driver
/**
* Delete from cache
*
- * @param string Cache key
+ * @param string $key Cache key
* @return bool
*/
public function delete($key)
{
- if ($this->_redis->delete($key) !== 1)
- {
- return FALSE;
- }
-
- if (isset($this->_serialized[$key]))
- {
- $this->_serialized[$key] = NULL;
- $this->_redis->sRemove('_ci_redis_serialized', $key);
- }
-
- return TRUE;
+ return ($this->_redis->delete($key) === 1);
}
// ------------------------------------------------------------------------
@@ -220,7 +228,7 @@ class CI_Cache_redis extends CI_Driver
*/
public function increment($id, $offset = 1)
{
- return $this->_redis->incr($id, $offset);
+ return $this->_redis->hIncrBy($id, 'data', $offset);
}
// ------------------------------------------------------------------------
@@ -234,7 +242,7 @@ class CI_Cache_redis extends CI_Driver
*/
public function decrement($id, $offset = 1)
{
- return $this->_redis->decr($id, $offset);
+ return $this->_redis->hIncrBy($id, 'data', -$offset);
}
// ------------------------------------------------------------------------
@@ -255,9 +263,9 @@ class CI_Cache_redis extends CI_Driver
/**
* Get cache driver info
*
- * @param string Not supported in Redis.
- * Only included in order to offer a
- * consistent cache API.
+ * @param string $type Not supported in Redis.
+ * Only included in order to offer a
+ * consistent cache API.
* @return array
* @see Redis::info()
*/
@@ -271,7 +279,7 @@ class CI_Cache_redis extends CI_Driver
/**
* Get cache metadata
*
- * @param string Cache key
+ * @param string $key Cache key
* @return array
*/
public function get_metadata($key)
@@ -298,13 +306,7 @@ class CI_Cache_redis extends CI_Driver
*/
public function is_supported()
{
- if ( ! extension_loaded('redis'))
- {
- log_message('debug', 'The Redis extension must be loaded to use Redis cache.');
- return FALSE;
- }
-
- return TRUE;
+ return extension_loaded('redis');
}
// ------------------------------------------------------------------------
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-11 07:10:18 +0100