void sendMultipleUdpMessages(Message msg, Vector dests) { Address dest; for (int i = 0; i < dests.size(); i++) { dest = (Address) dests.elementAt(i); msg.setDest(dest); try { sendUdpMessage(msg); } catch (Exception e) { Trace.debug("UDP.sendMultipleUdpMessages()", "exception=" + e); } } }
/** * Caller by the layer above this layer. Usually we just put this Message into the send queue and * let one or more worker threads handle it. A worker thread then removes the Message from the * send queue, performs a conversion and adds the modified Message to the send queue of the layer * below it, by calling Down). */ public void down(Event evt) { Message msg; Object dest_addr; if (evt.getType() != Event.MSG) { // unless it is a message handle it and respond handleDownEvent(evt); return; } // ****************** profiling ****************** /*if(num_msgs == 0) { start=System.currentTimeMillis(); num_msgs++; } else if(num_msgs >= 1000) { stop=System.currentTimeMillis(); long total_time=stop-start; double msgs_per_msec=num_msgs / (double)total_time; if(Trace.trace) Trace.info("UDP.down.profile()", "total_time=" + total_time + ", msgs/ms=" + msgs_per_msec); num_msgs=0; } else { num_msgs++; }*/ // ****************** profiling ****************** msg = (Message) evt.getArg(); if (udp_hdr != null && udp_hdr.group_addr != null) { // added patch by Roland Kurmann (March 20 2003) msg.putHeader(name, udp_hdr); } dest_addr = msg.getDest(); // Because we don't call Protocol.passDown(), we notify the observer directly (e.g. // PerfObserver). // This way, we still have performance numbers for UDP if (observer != null) { observer.passDown(evt); } if (dest_addr == null) { // 'null' means send to all group members if (ip_mcast) { if (mcast_addr == null) { Trace.error( "UDP.down()", "dest address of message is null, and " + "sending to default address fails as mcast_addr is null, too !" + " Discarding message " + Util.printEvent(evt)); return; } // if we want to use IP multicast, then set the destination of the message msg.setDest(mcast_addr); } else { // sends a separate UDP message to each address sendMultipleUdpMessages(msg, members); return; } } try { sendUdpMessage(msg); } catch (Exception e) { Trace.error("UDP.down()", "exception=" + e + ", msg=" + msg + ", mcast_addr=" + mcast_addr); } }