/**
* Get site default global prefix
*
* @return string
*/
public static function getGlobalPrefix()
{
// Provide a fallback for multisite. This is on purpose not inside the
// getPrefixForBin() function in order to decouple the unified prefix
// variable logic and custom module related security logic, that is not
// necessary for all backends. We can't just use HTTP_HOST, as multiple
// hosts might be using the same database. Or, more commonly, a site
// might not be a multisite at all, but might be using Drush leading to
// a separate HTTP_HOST of 'default'. Likewise, we can't rely on
// conf_path(), as settings.php might be modifying what database to
// connect to. To mirror what core does with database caching we use
// the DB credentials to inform our cache key.
if (null === self::$globalPrefix) {
if (isset($GLOBALS['db_url'])) {
// Drupal 6 specifics when using the cache_backport module, we
// therefore cannot use \Database class to determine database
// settings.
self::$globalPrefix = md5($GLOBALS['db_url']);
} else {
require_once DRUPAL_ROOT . '/includes/database/database.inc';
$dbInfo = Database::getConnectionInfo();
$active = $dbInfo['default'];
self::$globalPrefix = md5($active['host'] . $active['database'] . $active['prefix']['default']);
}
}
return self::$globalPrefix;
}
/**
* Generate a redis key name for the current lock name
*/
public function getKey($name = null)
{
if (null === $name) {
return parent::getKey('lock');
} else {
return parent::getKey(array('lock', $name));
}
}
public function __construct($namespace)
{
parent::__construct($namespace);
$className = Redis_Client::getClass(Redis_Client::REDIS_IMPL_CACHE);
$this->backend = new $className($this->getKey());
$this->refreshClearMode();
$this->refreshPermTtl();
$this->refreshMaxTtl();
}
public function getKey($cid = null)
{
if (null === $cid) {
return parent::getKey($this->bin);
} else {
return parent::getKey($this->bin . ':' . $cid);
}
}
/**
* Default contructor
*
* Beware that DrupalQueueInterface does not defines the __construct
* method in the interface yet is being used from DrupalQueue::get()
*
* @param mixed $client
* @param string $name
*/
public function __construct($client, $name)
{
parent::__construct($client, self::QUEUE_KEY_PREFIX . $name);
}