GST_send_operation_fail_msg (client, op_id, emsg);
GST_send_operation_success_msg (client, op_id);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
GST_send_operation_fail_msg (client, op_id, emsg);
GST_send_operation_success_msg (client, op_id);
GNUNET_SERVER_receive_done (client, GNUNET_OK);