diff options
Diffstat (limited to 'engine/classes/ElggMemcache.php')
-rw-r--r-- | engine/classes/ElggMemcache.php | 302 |
1 files changed, 151 insertions, 151 deletions
diff --git a/engine/classes/ElggMemcache.php b/engine/classes/ElggMemcache.php index 5e898c26a..9f12fb73b 100644 --- a/engine/classes/ElggMemcache.php +++ b/engine/classes/ElggMemcache.php @@ -1,151 +1,151 @@ -<?php
-/**
- * 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
- }
-}
+<?php +/** + * 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 + } +} |