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authorAndrey Andreev <narf@bofh.bg>2012-03-20 15:59:04 +0100
committerAndrey Andreev <narf@bofh.bg>2012-03-20 15:59:04 +0100
commit817164d822ce5dc1159ddc3e8fad2fa094dfc5ea (patch)
tree125069e2089d0e0ee3b8337b7acac6050ca1e045 /system/libraries/Cache/drivers/Cache_wincache.php
parent4b4363871256df9009bb4245def8f89420331cfd (diff)
parent8480f7c35af9aacaf2ebee43677ff1d31a5cce13 (diff)
Merge upstream branch
Diffstat (limited to 'system/libraries/Cache/drivers/Cache_wincache.php')
-rw-r--r--system/libraries/Cache/drivers/Cache_wincache.php165
1 files changed, 165 insertions, 0 deletions
diff --git a/system/libraries/Cache/drivers/Cache_wincache.php b/system/libraries/Cache/drivers/Cache_wincache.php
new file mode 100644
index 000000000..df619d4e6
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+++ b/system/libraries/Cache/drivers/Cache_wincache.php
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+<?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, $ttl);
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Delete from Cache
+ *
+ * @param mixed unique identifier of the item in the cache
+ * @param bool true on success/false on failure
+ */
+ public function delete($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 */