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-rw-r--r--engine/lib/memcache.php151
1 files changed, 1 insertions, 150 deletions
diff --git a/engine/lib/memcache.php b/engine/lib/memcache.php
index 1a428dac5..de1c001b5 100644
--- a/engine/lib/memcache.php
+++ b/engine/lib/memcache.php
@@ -10,156 +10,7 @@
* @link http://elgg.org/
*/
-/**
- * Memcache wrapper class.
- * @author Curverider Ltd <info@elgg.com>
- */
-class ElggMemcache extends ElggSharedMemoryCache {
- /**
- * Minimum version of memcached needed to run
- *
- */
- private static $MINSERVERVERSION = '1.1.12';
-
- /**
- * Memcache object
- */
- private $memcache;
-
- /**
- * Expiry of saved items (default timeout after a day to prevent anything getting too stale)
- */
- private $expires = 86400;
-
- /**
- * The version of memcache running
- */
- private $version = 0;
-
- /**
- * Connect to memcache.
- *
- * @param string $cache_id The namespace for this cache to write to - note, namespaces of the same name are shared!
- */
- function __construct($namespace = 'default') {
- global $CONFIG;
-
- $this->setNamespace($namespace);
-
- // Do we have memcache?
- if (!class_exists('Memcache')) {
- throw new ConfigurationException(elgg_echo('memcache:notinstalled'));
- }
-
- // Create memcache object
- $this->memcache = new Memcache;
-
- // Now add servers
- if (!$CONFIG->memcache_servers) {
- throw new ConfigurationException(elgg_echo('memcache:noservers'));
- }
-
- if (is_callable($this->memcache, 'addServer')) {
- foreach ($CONFIG->memcache_servers as $server) {
- if (is_array($server)) {
- $this->memcache->addServer(
- $server[0],
- isset($server[1]) ? $server[1] : 11211,
- isset($server[2]) ? $server[2] : true,
- isset($server[3]) ? $server[3] : null,
- isset($server[4]) ? $server[4] : 1,
- isset($server[5]) ? $server[5] : 15,
- isset($server[6]) ? $server[6] : true
- );
-
- } else {
- $this->memcache->addServer($server, 11211);
- }
- }
- } else {
- elgg_log(elgg_echo('memcache:noaddserver'), 'ERROR');
-
- $server = $CONFIG->memcache_servers[0];
- if (is_array($server)) {
- $this->memcache->connect($server[0], $server[1]);
- } else {
- $this->memcache->addServer($server, 11211);
- }
- }
-
- // Get version
- $this->version = $this->memcache->getversion();
- if (version_compare($this->version, ElggMemcache::$MINSERVERVERSION, '<')) {
- throw new ConfigurationException(sprintf(elgg_echo('memcache:versiontoolow'), ElggMemcache::$MINSERVERVERSION, $this->version));
- }
-
- // Set some defaults
- if (isset($CONFIG->memcache_expires)) {
- $this->expires = $CONFIG->memcache_expires;
- }
- }
-
- /**
- * Set the default expiry.
- *
- * @param int $expires The lifetime as a unix timestamp or time from now. Defaults forever.
- */
- public function setDefaultExpiry($expires = 0) {
- $this->expires = $expires;
- }
-
- /**
- * Combine a key with the namespace.
- * Memcache can only accept <250 char key. If the given key is too long it is shortened.
- *
- * @param string $key The key
- * @return string The new key.
- */
- private function make_memcache_key($key) {
- $prefix = $this->getNamespace() . ":";
-
- if (strlen($prefix.$key)> 250) {
- $key = md5($key);
- }
-
- return $prefix.$key;
- }
-
- public function save($key, $data) {
- $key = $this->make_memcache_key($key);
-
- $result = $this->memcache->set($key, $data, null, $this->expires);
- if (!$result) {
- elgg_log("MEMCACHE: FAILED TO SAVE $key", 'ERROR');
- }
-
- return $result;
- }
-
- public function load($key, $offset = 0, $limit = null) {
- $key = $this->make_memcache_key($key);
-
- $result = $this->memcache->get($key);
- if (!$result) {
- elgg_log("MEMCACHE: FAILED TO LOAD $key", 'ERROR');
- }
-
- return $result;
- }
-
- public function delete($key) {
- $key = $this->make_memcache_key($key);
-
- return $this->memcache->delete($key, 0);
- }
-
- public function clear() {
- // DISABLE clearing for now - you must use delete on a specific key.
- return true;
-
- // @todo Namespaces as in #532
- }
-}
+require_once dirname(dirname(__FILE__)).'/classes/ElggMemcache.php';
/**
* Return true if memcache is available and configured.