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149 lines
3.1 KiB
PHP
149 lines
3.1 KiB
PHP
<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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namespace phpbb\cache\driver;
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if (!defined('PHPBB_ACM_MEMCACHED_PORT'))
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{
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define('PHPBB_ACM_MEMCACHED_PORT', 11211);
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}
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if (!defined('PHPBB_ACM_MEMCACHED_COMPRESS'))
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{
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define('PHPBB_ACM_MEMCACHED_COMPRESS', true);
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}
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if (!defined('PHPBB_ACM_MEMCACHED_HOST'))
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{
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define('PHPBB_ACM_MEMCACHED_HOST', 'localhost');
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}
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if (!defined('PHPBB_ACM_MEMCACHED'))
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{
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//can define multiple servers with host1/port1,host2/port2 format
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define('PHPBB_ACM_MEMCACHED', PHPBB_ACM_MEMCACHED_HOST . '/' . PHPBB_ACM_MEMCACHED_PORT);
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}
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/**
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* ACM for Memcached
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*/
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class memcached extends \phpbb\cache\driver\memory
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{
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/** @var string Extension to use */
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protected $extension = 'memcached';
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/** @var \Memcached Memcached class */
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protected $memcached;
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/** @var int Flags */
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protected $flags = 0;
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/**
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* Memcached constructor
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*
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* @param string $memcached_servers Memcached servers string (optional)
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*/
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public function __construct($memcached_servers = '')
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{
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// Call the parent constructor
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parent::__construct();
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$memcached_servers = $memcached_servers ?: PHPBB_ACM_MEMCACHED;
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$this->memcached = new \Memcached();
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$this->memcached->setOption(\Memcached::OPT_BINARY_PROTOCOL, true);
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// Memcached defaults to using compression, disable if we don't want
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// to use it
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if (!PHPBB_ACM_MEMCACHED_COMPRESS)
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{
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$this->memcached->setOption(\Memcached::OPT_COMPRESSION, false);
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}
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$server_list = [];
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foreach (explode(',', $memcached_servers) as $u)
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{
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if (preg_match('#(.*)/(\d+)#', $u, $parts))
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{
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$server_list[] = [trim($parts[1]), (int) trim($parts[2])];
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}
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}
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$this->memcached->addServers($server_list);
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if (empty($server_list) || empty($this->memcached->getStats()))
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{
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trigger_error('Could not connect to memcached server(s).');
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}
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}
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/**
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* {@inheritDoc}
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*/
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public function unload()
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{
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parent::unload();
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unset($this->memcached);
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}
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/**
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* {@inheritDoc}
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*/
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public function purge()
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{
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$this->memcached->flush();
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parent::purge();
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}
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/**
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* Fetch an item from the cache
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*
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* @param string $var Cache key
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*
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* @return mixed Cached data
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*/
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protected function _read($var)
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{
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return $this->memcached->get($this->key_prefix . $var);
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}
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/**
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* Store data in the cache
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*
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* @param string $var Cache key
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* @param mixed $data Data to store
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* @param int $ttl Time-to-live of cached data
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* @return bool True if the operation succeeded
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*/
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protected function _write($var, $data, $ttl = 2592000)
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{
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if (!$this->memcached->replace($this->key_prefix . $var, $data, $ttl))
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{
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return $this->memcached->set($this->key_prefix . $var, $data, $ttl);
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}
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return true;
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}
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/**
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* Remove an item from the cache
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*
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* @param string $var Cache key
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* @return bool True if the operation succeeded
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*/
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protected function _delete($var)
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{
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return $this->memcached->delete($this->key_prefix . $var);
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}
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}
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