How to use

getMissing

method

in

org.jgroups.util.Table

/**
 * Returns a list of missing (= null) elements
 * @return A SeqnoList of missing messages, or null if no messages are missing
 */
public SeqnoList getMissing() {
  return getMissing(0);
}

@ManagedOperation(description="Triggers the retransmission task, asking all senders for missing messages")
public void triggerXmit() {
  SeqnoList missing;
  for(Map.Entry<Address,Table<Message>> entry: xmit_table.entrySet()) {
    Address target=entry.getKey(); // target to send retransmit requests to
    Table<Message> buf=entry.getValue();
    if(buf != null && buf.getNumMissing() > 0 && (missing=buf.getMissing(max_xmit_req_size)) != null) { // getNumMissing() is fast
      long highest=missing.getLast();
      Long prev_seqno=xmit_task_map.get(target);
      if(prev_seqno == null) {
        xmit_task_map.put(target, highest); // no retransmission
      }
      else {
        missing.removeHigherThan(prev_seqno); // we only retransmit the 'previous batch'
        if(highest > prev_seqno)
          xmit_task_map.put(target, highest);
        if(!missing.isEmpty())
          retransmit(missing, target, false);
      }
    }
    else if(!xmit_task_map.isEmpty())
      xmit_task_map.remove(target); // no current gaps for target
  }
  if(resend_last_seqno && last_seqno_resender != null)
    last_seqno_resender.execute(seqno.get());
}

if(win != null && win.getNumMissing() > 0 && (missing=win.getMissing(max_xmit_req_size)) != null) {
  long highest=missing.getLast();
  Long prev_seqno=xmit_task_map.get(target);

/**
 * Returns a list of missing (= null) elements
 * @return A SeqnoList of missing messages, or null if no messages are missing
 */
public SeqnoList getMissing() {
  return getMissing(0);
}

@ManagedOperation(description="Triggers the retransmission task, asking all senders for missing messages")
public void triggerXmit() {
  SeqnoList missing;
  for(Map.Entry<Address,Table<Message>> entry: xmit_table.entrySet()) {
    Address target=entry.getKey(); // target to send retransmit requests to
    Table<Message> buf=entry.getValue();
    if(buf != null && buf.getNumMissing() > 0 && (missing=buf.getMissing(max_xmit_req_size)) != null) { // getNumMissing() is fast
      long highest=missing.getLast();
      Long prev_seqno=xmit_task_map.get(target);
      if(prev_seqno == null) {
        xmit_task_map.put(target, highest); // no retransmission
      }
      else {
        missing.removeHigherThan(prev_seqno); // we only retransmit the 'previous batch'
        if(highest > prev_seqno)
          xmit_task_map.put(target, highest);
        if(!missing.isEmpty())
          retransmit(missing, target, false);
      }
    }
    else if(!xmit_task_map.isEmpty())
      xmit_task_map.remove(target); // no current gaps for target
  }
  if(resend_last_seqno && last_seqno_resender != null)
    last_seqno_resender.execute(seqno.get());
}

if(win != null && win.getNumMissing() > 0 && (missing=win.getMissing(max_xmit_req_size)) != null) {
  long highest=missing.getLast();
  Long prev_seqno=xmit_task_map.get(target);