protected function Redis_Cache_Predis::clearWithEval in Redis 7.2

1 call to Redis_Cache_Predis::clearWithEval()

Redis_Cache_Predis::clear in lib/Redis/Cache/Predis.php

Expires data from the cache.

File

lib/Redis/Cache/Predis.php, line 132

Class

Redis_Cache_Predis

Predis cache backend.

Code

protected function clearWithEval($cid = NULL, $wildcard = FALSE) {
  $client = Redis_Client::getClient();

  // @todo Should I restore the clear mode?
  if (NULL === $cid && FALSE === $wildcard) {

    // Flush volatile keys.
    // Per Drupal core definition, do not expire volatile keys
    // when a default cache lifetime is set.
    if (Redis_Cache_Base::LIFETIME_INFINITE == variable_get('cache_lifetime', Redis_Cache_Base::LIFETIME_DEFAULT)) {
      $ret = $client
        ->eval(self::EVAL_DELETE_VOLATILE, 0, $this
        ->getKey('*'));
      if (1 != $ret) {
        trigger_error(sprintf("EVAL failed: %s", $client
          ->getLastError()), E_USER_ERROR);
      }
    }
  }
  else {
    if ('*' !== $cid && $wildcard) {

      // Flush by prefix.
      $ret = $client
        ->eval(self::EVAL_DELETE_PREFIX, 0, $this
        ->getKey($cid . '*'));
      if (1 != $ret) {
        trigger_error(sprintf("EVAL failed: %s", $client
          ->getLastError()), E_USER_ERROR);
      }
    }
    else {
      if ('*' === $cid) {

        // Flush everything.
        $ret = $client
          ->eval(self::EVAL_DELETE_PREFIX, 0, $this
          ->getKey('*'));
        if (1 != $ret) {
          trigger_error(sprintf("EVAL failed: %s", $client
            ->getLastError()), E_USER_ERROR);
        }
      }
      else {
        if (!$wildcard) {
          $client
            ->del($this
            ->getKey($cid));
        }
      }
    }
  }
}