Someone

void process_data(void *data)
{
    BPSK_XMT_i *tx = (BPSK_XMT_i *) data;

    CORBA::ULong packet_size = (CORBA::ULong) 16;

    PortTypes::ShortSequence I;
    PortTypes::ShortSequence Q;

    I.length(packet_size);
    Q.length(packet_size);

    while(tx->tx_active){
        for (unsigned int i = 0; i < packet_size * 2; i += 2) {
            I[i/2] = (CORBA::Short) i;
            Q[i/2] = (CORBA::Short) i*2;
         cout << "I data: " << I[i] <<"  " << Q[i] << endl;
        }

        tx->outPort0_servant->send_data(I,Q);
        sleep(1);

    }
    tx->output_thread->exit();
}


this is what I get when I run the program
start BPSK XMT program!!!
I data: 0  0
I data: 0  0
I data: 0  0
I data: 0  0
I data: 0  0
I data: 0  0
I data: 0  0
I data: 0  0
terminate called after throwing an instance of 'CORBA::BAD_PARAM'