Example #1
0
 void closeMulticastSocket() {
   if (mcast_sock != null) {
     try {
       if (mcast_addr != null) {
         // by sending a dummy packet the thread will be awakened
         sendDummyPacket(mcast_addr.getIpAddress(), mcast_addr.getPort());
         Util.sleep(300);
         mcast_sock.leaveGroup(mcast_addr.getIpAddress());
       }
       mcast_sock.close(); // this will cause the mcast receiver thread to break out of its loop
       mcast_sock = null;
       if (Trace.trace) {
         Trace.info("UDP.closeMulticastSocket()", "multicast socket closed");
       }
     } catch (IOException ex) {
     }
     mcast_addr = null;
   }
 }
Example #2
0
    void bundleAndSend() {
      Map.Entry entry;
      IpAddress dest;
      ObjectOutputStream out;
      InetAddress addr;
      int port;
      byte[] data;
      List l;

      if (Trace.trace) {
        Trace.info(
            "UDP.BundlingOutgoingPacketHandler.bundleAndSend()",
            "\nsending msgs:\n" + dumpMessages(msgs));
      }
      synchronized (msgs) {
        stopTimer();

        if (msgs.size() == 0) {
          return;
        }

        for (Iterator it = msgs.entrySet().iterator(); it.hasNext(); ) {
          entry = (Map.Entry) it.next();
          dest = (IpAddress) entry.getKey();
          addr = dest.getIpAddress();
          port = dest.getPort();
          l = (List) entry.getValue();
          try {
            out_stream.reset();
            // BufferedOutputStream bos=new BufferedOutputStream(out_stream);
            out_stream.write(Version.version_id, 0, Version.version_id.length); // write the version
            // bos.write(Version.version_id, 0, Version.version_id.length); // write the version
            out = new ObjectOutputStream(out_stream);
            // out=new ObjectOutputStream(bos);
            l.writeExternal(out);
            out.close(); // needed if out buffers its output to out_stream
            data = out_stream.toByteArray();
            doSend(data, addr, port);
          } catch (IOException e) {
            Trace.error(
                "UDP.BundlingOutgoingPacketHandle.bundleAndSend()",
                "exception sending msg (to dest=" + dest + "): " + e);
          }
        }
        msgs.clear();
      }
    }
Example #3
0
 /** Internal method to serialize and send a message. This method is not reentrant */
 void send(Message msg) throws Exception {
   IpAddress dest = (IpAddress) msg.getDest();
   byte[] buf = messageToBuffer(msg);
   doSend(buf, dest.getIpAddress(), dest.getPort());
 }