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-rw-r--r--system/libraries/Cache/drivers/Cache_apc.php27
-rw-r--r--system/libraries/Cache/drivers/Cache_memcached.php22
-rw-r--r--system/libraries/Cache/drivers/Cache_redis.php6
-rw-r--r--system/libraries/Cache/drivers/Cache_wincache.php27
4 files changed, 66 insertions, 16 deletions
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index dd18e7bc8..07ea8f474 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -49,6 +49,24 @@ defined('BASEPATH') OR exit('No direct script access allowed');
class CI_Cache_apc 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 ( ! $this->is_supported())
+ {
+ log_message('error', 'Cache: Failed to initialize APC; extension not loaded/enabled?');
+ }
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
* Get
*
* Look for a value in the cache. If it exists, return the data
@@ -198,13 +216,6 @@ class CI_Cache_apc extends CI_Driver {
*/
public function is_supported()
{
- if ( ! extension_loaded('apc') OR ! ini_get('apc.enabled'))
- {
- log_message('debug', 'The APC PHP extension must be loaded to use APC Cache.');
- return FALSE;
- }
-
- return TRUE;
+ return (extension_loaded('apc') && ini_get('apc.enabled'));
}
-
}
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index 16684fbb1..56ab5b85b 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -107,6 +107,7 @@ class CI_Cache_memcached extends CI_Driver {
else
{
log_message('error', 'Cache: Failed to create Memcache(d) object; extension not loaded?');
+ return;
}
foreach ($this->_memcache_conf as $cache_server)
@@ -286,4 +287,25 @@ class CI_Cache_memcached extends CI_Driver {
{
return (extension_loaded('memcached') OR extension_loaded('memcache'));
}
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Class destructor
+ *
+ * Closes the connection to Memcache(d) if present.
+ *
+ * @return void
+ */
+ public function __destruct()
+ {
+ if ($this->_memcached instanceof Memcache)
+ {
+ $this->_memcached->close();
+ }
+ elseif ($this->_memcached instanceof Memcached)
+ {
+ $this->_memcached->quit();
+ }
+ }
}
diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php
index 81b49e2fc..e9194a499 100644
--- a/system/libraries/Cache/drivers/Cache_redis.php
+++ b/system/libraries/Cache/drivers/Cache_redis.php
@@ -91,6 +91,12 @@ class CI_Cache_redis extends CI_Driver
*/
public function __construct()
{
+ if ( ! $this->is_supported())
+ {
+ log_message('error', 'Cache: Failed to create Redis object; extension not loaded?');
+ return;
+ }
+
$config = array();
$CI =& get_instance();
diff --git a/system/libraries/Cache/drivers/Cache_wincache.php b/system/libraries/Cache/drivers/Cache_wincache.php
index f66080514..d6a0d4fb6 100644
--- a/system/libraries/Cache/drivers/Cache_wincache.php
+++ b/system/libraries/Cache/drivers/Cache_wincache.php
@@ -52,6 +52,24 @@ defined('BASEPATH') OR exit('No direct script access allowed');
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,
@@ -194,13 +212,6 @@ class CI_Cache_wincache extends CI_Driver {
*/
public function is_supported()
{
- if ( ! extension_loaded('wincache') OR ! ini_get('wincache.ucenabled'))
- {
- log_message('debug', 'The Wincache PHP extension must be loaded to use Wincache Cache.');
- return FALSE;
- }
-
- return TRUE;
+ return (extension_loaded('wincache') && ini_get('wincache.ucenabled'));
}
-
}