/*
 *  call-seq:
 *     index_reader.close -> index_reader
 *
 *  Close the IndexReader. This method also commits any deletions made by this
 *  IndexReader. This method will be called explicitly by the garbage
 *  collector but you should call it explicitly to commit any changes as soon
 *  as possible and to close any locks held by the object to prevent locking
 *  errors.
 */
static VALUE
frt_ir_close(VALUE self)
{
    IndexReader *ir = (IndexReader *)DATA_PTR(self);
    object_del(ir);
    Frt_Unwrap_Struct(self);
    ir_close(ir);
    return self;
}