예제 #1
0
파일: UDP.java 프로젝트: NZDIS/jgroups
  /** Stops unicast and multicast receiver threads */
  void stopThreads() {
    Thread tmp;

    // 1. Stop the multicast receiver thread
    if (mcast_receiver != null) {
      if (mcast_receiver.isAlive()) {
        tmp = mcast_receiver;
        mcast_receiver = null;
        closeMulticastSocket(); // will cause the multicast thread to terminate
        tmp.interrupt();
        try {
          tmp.join(100);
        } catch (Exception e) {
        }
        tmp = null;
      }
      mcast_receiver = null;
    }

    // 2. Stop the unicast receiver thread
    if (ucast_receiver != null) {
      ucast_receiver.stop();
      ucast_receiver = null;
    }

    // 3. Stop the in_packet_handler thread
    if (incoming_packet_handler != null) {
      incoming_packet_handler.stop();
    }
  }
예제 #2
0
    /**
     * @param views Guaranteed to be non-null and to have >= 2 members, or else this thread would
     *     not be started
     */
    public synchronized void start(Map<Address, View> views) {
      if (thread == null || thread.isAlive()) {
        this.coords.clear();

        // now remove all members which don't have us in their view, so RPCs won't block (e.g.
        // FLUSH)
        // https://jira.jboss.org/browse/JGRP-1061
        sanitizeViews(views);

        // Add all different coordinators of the views into the hashmap and sets their members:
        Collection<Address> coordinators = Util.determineMergeCoords(views);
        for (Address coord : coordinators) {
          View view = views.get(coord);
          if (view != null) this.coords.put(coord, new ArrayList<Address>(view.getMembers()));
        }

        // For the merge participants which are not coordinator, we simply add them, and the
        // associated
        // membership list consists only of themselves
        Collection<Address> merge_participants = Util.determineMergeParticipants(views);
        merge_participants.removeAll(coordinators);
        for (Address merge_participant : merge_participants) {
          Collection<Address> tmp = new ArrayList<Address>();
          tmp.add(merge_participant);
          coords.putIfAbsent(merge_participant, tmp);
        }

        thread = gms.getThreadFactory().newThread(this, "MergeTask");
        thread.setDaemon(true);
        thread.start();
      }
    }
예제 #3
0
파일: GMS.java 프로젝트: jtoerber/JGroups
 synchronized void start() {
   if (queue.closed()) queue.reset();
   if (thread == null || !thread.isAlive()) {
     thread = getThreadFactory().newThread(this, "ViewHandler");
     thread.setDaemon(
         false); // thread cannot terminate if we have tasks left, e.g. when we as coord leave
     thread.start();
   }
 }
예제 #4
0
파일: UDP.java 프로젝트: NZDIS/jgroups
 public void stop() {
   Thread tmp;
   if (thread != null && thread.isAlive()) {
     running = false;
     tmp = thread;
     thread = null;
     closeSocket(); // this will cause the thread to break out of its loop
     tmp.interrupt();
     tmp = null;
   }
   thread = null;
 }
예제 #5
0
  protected void stopFlusher() {
    flushing = false;
    Thread tmp = flusher;

    while (tmp != null && tmp.isAlive()) {
      tmp.interrupt();
      ack_promise.setResult(null);
      try {
        tmp.join();
      } catch (InterruptedException e) {
      }
    }
  }
예제 #6
0
파일: UDP.java 프로젝트: NZDIS/jgroups
  /** Starts the unicast and multicast receiver threads */
  void startThreads() throws Exception {
    if (ucast_receiver == null) {
      // start the listener thread of the ucast_recv_sock
      ucast_receiver = new UcastReceiver();
      ucast_receiver.start();
      if (Trace.trace) {
        Trace.info("UDP.startThreads()", "created unicast receiver thread");
      }
    }

    if (ip_mcast) {
      if (mcast_receiver != null) {
        if (mcast_receiver.isAlive()) {
          if (Trace.trace) {
            Trace.info(
                "UDP.createThreads()",
                "did not create new multicastreceiver thread as existing "
                    + "multicast receiver thread is still running");
          }
        } else {
          mcast_receiver = null; // will be created just below...
        }
      }

      if (mcast_receiver == null) {
        mcast_receiver = new Thread(this, "UDP mcast receiver");
        mcast_receiver.setPriority(Thread.MAX_PRIORITY); // needed ????
        mcast_receiver.setDaemon(true);
        mcast_receiver.start();
      }
    }
    if (use_outgoing_packet_handler) {
      outgoing_packet_handler.start();
    }
    if (use_incoming_packet_handler) {
      incoming_packet_handler.start();
    }
  }
예제 #7
0
 public synchronized void stop() {
   Thread tmp = thread;
   if (thread != null && thread.isAlive()) tmp.interrupt();
   thread = null;
 }
예제 #8
0
파일: Merger.java 프로젝트: wburns/JGroups
 public synchronized boolean isRunning() {
   return thread != null && thread.isAlive();
 }