1 files changed, 122 insertions, 0 deletions
diff --git a/phpBB/phpbb/cache/driver/memcache.php b/phpBB/phpbb/cache/driver/memcache.php
new file mode 100644
index 0000000000..57f138f574
--- /dev/null
+++ b/phpBB/phpbb/cache/driver/memcache.php
@@ -0,0 +1,122 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\cache\driver;
+
+if (!defined('PHPBB_ACM_MEMCACHE_PORT'))
+{
+	define('PHPBB_ACM_MEMCACHE_PORT', 11211);
+}
+
+if (!defined('PHPBB_ACM_MEMCACHE_COMPRESS'))
+{
+	define('PHPBB_ACM_MEMCACHE_COMPRESS', false);
+}
+
+if (!defined('PHPBB_ACM_MEMCACHE_HOST'))
+{
+	define('PHPBB_ACM_MEMCACHE_HOST', 'localhost');
+}
+
+if (!defined('PHPBB_ACM_MEMCACHE'))
+{
+	//can define multiple servers with host1/port1,host2/port2 format
+	define('PHPBB_ACM_MEMCACHE', PHPBB_ACM_MEMCACHE_HOST . '/' . PHPBB_ACM_MEMCACHE_PORT);
+}
+
+/**
+* ACM for Memcached
+*/
+class memcache extends \phpbb\cache\driver\memory
+{
+	var $extension = 'memcache';
+
+	var $memcache;
+	var $flags = 0;
+
+	function __construct()
+	{
+		// Call the parent constructor
+		parent::__construct();
+
+		$this->memcache = new \Memcache;
+		foreach (explode(',', PHPBB_ACM_MEMCACHE) as $u)
+		{
+			preg_match('#(.*)/(\d+)#', $u, $parts);
+			$this->memcache->addServer(trim($parts[1]), (int) trim($parts[2]));
+		}
+		$this->flags = (PHPBB_ACM_MEMCACHE_COMPRESS) ? MEMCACHE_COMPRESSED : 0;
+	}
+
+	/**
+	* {@inheritDoc}
+	*/
+	function unload()
+	{
+		parent::unload();
+
+		$this->memcache->close();
+	}
+
+	/**
+	* {@inheritDoc}
+	*/
+	function purge()
+	{
+		$this->memcache->flush();
+
+		parent::purge();
+	}
+
+	/**
+	* Fetch an item from the cache
+	*
+	* @access protected
+	* @param string $var Cache key
+	* @return mixed Cached data
+	*/
+	function _read($var)
+	{
+		return $this->memcache->get($this->key_prefix . $var);
+	}
+
+	/**
+	* Store data in the cache
+	*
+	* @access protected
+	* @param string $var Cache key
+	* @param mixed $data Data to store
+	* @param int $ttl Time-to-live of cached data
+	* @return bool True if the operation succeeded
+	*/
+	function _write($var, $data, $ttl = 2592000)
+	{
+		if (!$this->memcache->replace($this->key_prefix . $var, $data, $this->flags, $ttl))
+		{
+			return $this->memcache->set($this->key_prefix . $var, $data, $this->flags, $ttl);
+		}
+		return true;
+	}
+
+	/**
+	* Remove an item from the cache
+	*
+	* @access protected
+	* @param string $var Cache key
+	* @return bool True if the operation succeeded
+	*/
+	function _delete($var)
+	{
+		return $this->memcache->delete($this->key_prefix . $var);
+	}
+}