Synnefo » snf-ganeti

      except (KeyError):

        raise errors.LockError('non-existing lock in set (%s)' % lname)

    # Now acquire_list contains a sorted list of resources and locks we want.

    # In order to get them we loop on this (private) list and acquire() them.

    # We gave no real guarantee they will still exist till this is done but

        try:

          # now the lock cannot be deleted, we have it!

          self._add_owned(lname)

        except:

          # We shouldn't have problems adding the lock to the owners list, but

          # if we did we'll try to release this lock and re-raise exception.

          self._del_owned(lname)

        raise errors.LockError('non-existing lock in set (%s)' % name_fail)

  def release(self, names=None):

    """Release a set of resource locks, at the same level.