Example usage for java.net DatagramSocket setTrafficClass

Introduction

In this page you can find the example usage for java.net DatagramSocket setTrafficClass.

Prototype

public synchronized void setTrafficClass(int tc) throws SocketException 

Source Link

Document

Sets traffic class or type-of-service octet in the IP datagram header for datagrams sent from this DatagramSocket.

Usage

From source file:Main.java

public static void main(String args[]) {
    try {// ww  w .j av a 2s .  c o m

        InetAddress ia = InetAddress.getByName("www.java2s.com");

        DatagramSocket ds = new DatagramSocket();

        byte buffer[] = "hello".getBytes();
        DatagramPacket dp = new DatagramPacket(buffer, buffer.length, ia, 80);
        ds.setTrafficClass(1);
        ds.send(dp);

    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:net.fenyo.gnetwatch.actions.ActionFlood.java

/**
 * Floods the target.//  w  w w. j  a v a 2  s.co m
 * @param none.
 * @return void.
 * @throws IOException IO exception.
 * @throws InterruptedException exception.
 */
public void invoke() throws IOException, InterruptedException {
    if (isDisposed() == true)
        return;

    try {
        super.invoke();

        // il faudrait copier les queriers  la cration de l'action
        final IPQuerier querier;

        DatagramSocket socket;
        final byte[] buf;
        final DatagramPacket packet;
        // on invoque un champ persistent depuis potentiellement un thread autre que celui qu gre une session qui rend cet objet persistent, on doit viter cet accs concurrent (les sessions ne sont pas thread safe)
        synchronized (getGUI().getSynchro()) {
            if (TargetIPv4.class.isInstance(getTarget())) {
                querier = ((TargetIPv4) getTarget()).getIPQuerier();
            } else if (TargetIPv6.class.isInstance(getTarget())) {
                querier = ((TargetIPv6) getTarget()).getIPQuerier();
            } else
                return;

            socket = new DatagramSocket(querier.getPortSrc());
            socket.setTrafficClass(querier.getTos() << 2);
            socket.setBroadcast(true);

            buf = new byte[querier.getPDUMaxSize()];
            Arrays.fill(buf, (byte) 0);
            packet = new DatagramPacket(buf, buf.length,
                    new InetSocketAddress(querier.getAddress(), querier.getPortDst()));
        }

        long last_time = System.currentTimeMillis();
        int bytes_sent = 0;
        while (true) {
            socket.send(packet);
            bytes_sent += buf.length;

            if (System.currentTimeMillis() - last_time > 1000) {

                synchronized (getGUI().getSynchro()) {
                    synchronized (getGUI().sync_tree) {
                        final Session session = getGUI().getSynchro().getSessionFactory().getCurrentSession();
                        session.beginTransaction();
                        try {
                            session.update(this);

                            getTarget().addEvent(new EventFlood(new Double(
                                    ((double) 8 * 1000 * bytes_sent) / (System.currentTimeMillis() - last_time))
                                            .intValue()));

                            setDescription(
                                    GenericTools.formatNumericString(getGUI().getConfig(),
                                            "" + new Double(((double) 8 * 1000 * bytes_sent)
                                                    / (System.currentTimeMillis() - last_time)).intValue())
                                            + " bit/s");

                            session.getTransaction().commit();
                        } catch (final Exception ex) {
                            log.error("Exception", ex);
                            session.getTransaction().rollback();
                        }
                    }
                }

                synchronized (getGUI().getSynchro()) {
                    getGUI().setStatus(getGUI().getConfig().getPattern("bytes_flooded", bytes_sent,
                            querier.getAddress().toString().substring(1)));
                }

                last_time = System.currentTimeMillis();
                bytes_sent = 0;
            }

            if (interrupted == true) {
                socket.close();
                return;
            }
        }
    } catch (final InterruptedException ex) {
    }
}

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