/* Set the last frame of a circuit, if it's not already known, "closing" the circuit.  */
void close_circuit(circuit_t *circuit, guint32 last_frame)
/* Set the last frame of a circuit, if it's not already known, "closing" the circuit.  */
void close_circuit(circuit_t *circuit, guint32 last_frame)
{
	if (circuit->last_frame == 0)
		circuit->last_frame = last_frame;
}