protected void sendNAK(List <long> sequenceNumbers)
{
try
{
if (sequenceNumbers.Count == 0)
{
return;
}
NegativeAcknowledgement nAckPacket = new NegativeAcknowledgement();
nAckPacket.addLossInfo(sequenceNumbers);
nAckPacket.setSession(session);
nAckPacket.setDestinationID(session.getDestination().getSocketID());
endpoint.doSend(nAckPacket);
statistics.incNumberOfNAKSent();
}
catch (Exception exc)
{
Log.Write(this.ToString(), exc);
}
}
/**
* write a NAK triggered by a received sequence number that is larger than
* the largestReceivedSeqNumber + 1
* @param currentSequenceNumber - the currently received sequence number
* @throws IOException
*/
protected void sendNAK(long currentSequenceNumber)
{
try
{
NegativeAcknowledgement nAckPacket = new NegativeAcknowledgement();
nAckPacket.addLossInfo(largestReceivedSeqNumber + 1, currentSequenceNumber);
nAckPacket.setSession(session);
nAckPacket.setDestinationID(session.getDestination().getSocketID());
//put all the sequence numbers between (but excluding) these two values into the
//receiver loss list
for (long i = largestReceivedSeqNumber + 1; i < currentSequenceNumber; i++)
{
ReceiverLossListEntry detectedLossSeqNumber = new ReceiverLossListEntry(i);
receiverLossList.insert(detectedLossSeqNumber);
}
endpoint.doSend(nAckPacket);
//logger.info("NAK for "+currentSequenceNumber);
statistics.incNumberOfNAKSent();
}
catch (Exception exc)
{
Log.Write(this.ToString(), exc);
}
}