user_data->data = c;
ts.tv_sec = interval;
ts.tv_nsec = (interval - ts.tv_sec) * 1000000000;
- plugin_register_complex_read(buf, cpy_read_callback, &ts, user_data);
+ plugin_register_complex_read(/* group = */ NULL, buf,
+ cpy_read_callback, &ts, user_data);
return cpy_string_to_unicode_or_bytes(buf);
}