Examples of agentj.nativeimp.util.DataPacket

agentj.nativeimp.util.DataPacket
This class is a simple container messages going back and forth between the native implementations. It also server for synchroniation for the incoming TCP packets. The fields and getters are the same as DatagramPacket so we don;t have to change much (except addressing of course).
Created by Ian Taylor Modified: 3/22/09

        } finally {
            // don't need
           // impl.releaseFD();
        }


        sp = new DataPacket(inputBuffer, off, n);
        cont.executeCallback(this);
    }

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        } else {
            logger.trace("No Data left, need to wait for data ...");
          offForRead=off;
          lengthForRead=length;


          DataPacket sp;
        
          // IAN: enable asynchronous callback for data - only read when ready 8:)
          sp = (DataPacket)waitForDataEvent();
        
          logger.debug("Socket ID = " + _socketid + ", Sync unlocked, reading data now ... ");


          if (isLocalDataConnection()) {
            logger.debug("SocketInputStream read: retrieving local data now... Socket ID = " + _socketid);


            System.arraycopy(localData,off,b,0,localData.length); // clean up data


            return localData.length;
          }
          logger.debug("SocketInputStream read: Got remote data, parsing now.... ");


          n = sp.getLength();


          byte buf[] = new byte[b.length];
          // acquire file descriptor and do the read


            logger.debug("SocketInputStream read: copying to read buffer.... ");


          System.arraycopy(sp.getData(),0,b,off,sp.getLength()); // copy data


            logger.debug("SocketInputStream read: copied ok.... ");


            /*
             * We receive a "connection reset" but there may be bytes still
             * buffered on the socket
             */
             if (gotReset) {
                 impl.setConnectionResetPending();
                 System.arraycopy(sp.getData(),0,b,off,sp.getLength()); // copy data
                 if (n > 0) {
                     return n;
                 }
             }
       }

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                if (fd != null && fd1 != null ) {
                    /* must be unbound or else bound to anyLocal */
                    return anyLocalBoundAddr;
                }
                //   InetAddressContainer in = new InetAddressContainer();
                DataPacket dp = new DataPacket();
                ret = socketGetOptionJava(opt,dp ); // need to fix
                return AgentJNameService.getIPAddress(dp.getAddress());
            case SO_SNDBUF:
            case SO_RCVBUF:
                ret = socketGetOptionJava(opt, null);
                return new Integer(ret);
            case IP_TOS:

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        return sync;
    }




    private void readRemote(DatagramPacket intoPacket) throws IOException {
        DataPacket data=makeDatapacket(intoPacket);


        AgentJAgent.getLock().lock();  // block until condition holds
        try {
            receive0(data);
        } finally {

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        logger.debug("Send: About to lock for send now");


        AgentJAgent.getLock().lock();  // block until condition holds


        try {
            DataPacket data=makeDatapacket(p);
            logger.debug("Native Java UPD IMplementation: Sending data now");
            send0(data);
            refillDataPacket(data, p);
        } finally {
            AgentJAgent.getLock().unlock();

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    }


    // to go in.


    private DataPacket makeDatapacket(DatagramPacket p) throws IOException {
        DataPacket data = new DataPacket(p.getData(),p.getOffset(),p.getLength());
        if (p.getAddress()!=null) {
            data.setAddress(AgentJNameService.getNSAddress(p.getAddress().getHostName()));
            data.setPort(p.getPort());
        }
        return data;
    }

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        AgentJAgent.getLock().lock();  // block until condition holds


        int bytes=0;


        try {
            DataPacket data=makeDatapacket(p);
            peekData(data);
            refillDataPacket(data, p);
            bytes=data.getData()[0];
        } finally {
            AgentJAgent.getLock().unlock();
        }


        return bytes;

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     * @see agentj.thread.AgentJEventQueue
     * @param payload
     * @throws IOException
     */
    public void doSend(Object payload) throws IOException {
        DataPacket data = (DataPacket)payload;
        sendEnabled =true;
        socketWrite(data.getData(), data.getOffset(), data.getLength());
        sendEnabled =false;
    }

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        logger.debug("Sending Data from : " + impl.getSocketLogInfo()
                        + ", Port " + impl.getMyLocalPort()
                + " to DAddr " +  impl.getDstAddress() + ", DPort " + impl.getDstPort());


        if ((!sendEnabled) && (isLocalDataConnection())) { // if not sending pop this send on the queue
            AgentJEventQueue.pushEvent(this, new DataPacket(b,off,len));
            return;
        }


        if (len <= 0 || off < 0 || off + len > b.length) {
            if (len == 0) {

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Related Classes of agentj.nativeimp.util.DataPacket

agentj.nativeimp.NsDatagramSocketImpl

agentj.nativeimp.NsSocketImpl

agentj.nativeimp.SocketInputStream

agentj.nativeimp.SocketOutputStream

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