WindowsAzureSessionHandler 的 gc 方法

windowsazuresessionhandler.php

/**
 * Callback function for session handler. It's invoked while the session garbage collection starts.
 *
 * @param $lifeTime Specify the expiry time for cleaning outdated sessions.
 *
 * @return boolean If the gc operation success.
 */
public function gc($lifeTime) {
  // search the entities that need to be deleted.
  $filter = 'PartitionKey eq\'' . $this->_sessionContainerPartition . '\' and expires lt ' . (time() - $lifeTime);
  try {
    $result = $this->_tableRestProxy->queryEntities($this->_sessionContainer, $filter);
    $entities = $result->getEntities();
    foreach ($entities as $entitiy) {
      $this->_tableRestProxy->deleteEntity($this->_sessionContainer, $this->_sessionContainerParition, $entity->getRowKey());
    }
    return TRUE;
  } catch (ServiceException $e) {
    return FALSE;
  }
}