/// <summary>
/// request retransmission of lost sequences
/// </summary>
/// <param name="rcvdSeq">the sequence of the packet that was just received.</param>
private void DoRequestForRetransmission(uint rcvdSeq)
{
var desiredSeq = lastReceivedPacketSequence + 1;
List <uint> needSeq = new List <uint>();
needSeq.Add(desiredSeq);
uint bottom = desiredSeq + 1;
for (uint a = bottom; a < rcvdSeq; a++)
{
if (!outOfOrderPackets.ContainsKey(a))
{
needSeq.Add(a);
}
}
ServerPacket reqPacket = new ServerPacket();
byte[] reqData = new byte[4 + (needSeq.Count * 4)];
MemoryStream msReqData = new MemoryStream(reqData);
msReqData.Write(BitConverter.GetBytes((uint)needSeq.Count), 0, 4);
needSeq.ForEach(k => msReqData.Write(BitConverter.GetBytes(k), 0, 4));
reqPacket.Data = msReqData;
reqPacket.Header.Flags = PacketHeaderFlags.RequestRetransmit;
EnqueueSend(reqPacket);
LastRequestForRetransmitTime = DateTime.Now;
packetLog.DebugFormat("[{0}] Requested retransmit of {1}", session.LoggingIdentifier, needSeq.Select(k => k.ToString()).Aggregate((a, b) => a + ", " + b));
NetworkStatistics.S2C_RequestsForRetransmit_Aggregate_Increment();
}
const uint MaxNumNakSeqIds = 115; //464 + header = 484; (464 - 4) / 4
/// <summary>
/// request retransmission of lost sequences
/// </summary>
/// <param name="rcvdSeq">the sequence of the packet that was just received.</param>
private void DoRequestForRetransmission(uint rcvdSeq)
{
var desiredSeq = lastReceivedPacketSequence + 1;
List <uint> needSeq = new List <uint>();
needSeq.Add(desiredSeq);
uint bottom = desiredSeq + 1;
if (rcvdSeq < bottom || rcvdSeq - bottom > CryptoSystem.MaximumEffortLevel)
{
session.Terminate(SessionTerminationReason.AbnormalSequenceReceived);
return;
}
uint seqIdCount = 1;
for (uint a = bottom; a < rcvdSeq; a++)
{
if (!outOfOrderPackets.ContainsKey(a))
{
needSeq.Add(a);
seqIdCount++;
if (seqIdCount >= MaxNumNakSeqIds)
{
break;
}
}
}
ServerPacket reqPacket = new ServerPacket();
byte[] reqData = new byte[4 + (needSeq.Count * 4)];
MemoryStream msReqData = new MemoryStream(reqData, 0, reqData.Length, true, true);
msReqData.Write(BitConverter.GetBytes((uint)needSeq.Count), 0, 4);
needSeq.ForEach(k => msReqData.Write(BitConverter.GetBytes(k), 0, 4));
reqPacket.Data = msReqData;
reqPacket.Header.Flags = PacketHeaderFlags.RequestRetransmit;
EnqueueSend(reqPacket);
LastRequestForRetransmitTime = DateTime.UtcNow;
packetLog.DebugFormat("[{0}] Requested retransmit of {1}", session.LoggingIdentifier, needSeq.Select(k => k.ToString()).Aggregate((a, b) => a + ", " + b));
NetworkStatistics.S2C_RequestsForRetransmit_Aggregate_Increment();
}