private void HandleNak(PlayerNetworkSession session, byte[] receiveBytes)
{
if (session == null) return;
Player player = session.Player;
if (player == null) return;
Nak nak = Nak.CreateObject();
nak.Reset();
nak.Decode(receiveBytes);
var queue = session.WaitingForAcksQueue;
foreach (Tuple<int, int> range in nak.ranges)
{
ServerInfo.NumberOfNakReceive++;
int start = range.Item1;
int end = range.Item2;
for (int i = start; i <= end; i++)
{
session.ErrorCount++;
// HACK: Just to make sure we aren't getting unessecary load on the queue during heavy buffering.
if (ServerInfo.AvailableBytes > 1000) continue;
Datagram datagram;
if (queue.TryGetValue(i, out datagram))
{
// RTT = RTT * 0.875 + rtt * 0.125
// RTTVar = RTTVar * 0.875 + abs(RTT - rtt)) * 0.125
// RTO = RTT + 4 * RTTVar
long rtt = datagram.Timer.ElapsedMilliseconds;
long RTT = player.Rtt;
long RTTVar = player.RttVar;
player.Rtt = (long) (RTT*0.875 + rtt*0.125);
player.RttVar = (long) (RTTVar*0.875 + Math.Abs(RTT - rtt)*0.125);
player.Rto = player.Rtt + 4*player.RttVar + 100; // SYNC time in the end
//if (Log.IsDebugEnabled)
// Log.ErrorFormat("NAK, resending datagram #{0} for {1}, MTU: {2}", i, player.Username, session.Mtuize);
//SendDatagram(session, datagram, false);
}
else
{
if (Log.IsDebugEnabled)
//Log.WarnFormat("NAK, no datagram #{0} to resend for {1}", i, player.Username);
}
}
}
nak.PutPool();
}
private void HandleNak(PlayerNetworkSession session, byte[] receiveBytes)
{
if (session == null)
{
return;
}
Nak nak = Nak.CreateObject();
nak.Reset();
nak.Decode(receiveBytes);
var queue = session.WaitingForAcksQueue;
foreach (Tuple <int, int> range in nak.ranges)
{
Interlocked.Increment(ref ServerInfo.NumberOfNakReceive);
int start = range.Item1;
int end = range.Item2;
for (int i = start; i <= end; i++)
{
if (queue.TryGetValue(i, out var datagram))
{
CalculateRto(session, datagram);
datagram.RetransmitImmediate = true;
}
else
{
if (Log.IsDebugEnabled)
{
Log.WarnFormat("NAK, no datagram #{0} for {1}", i, session.Username);
}
}
}
}
nak.PutPool();
}
private void HandleNak(PlayerNetworkSession session, byte[] receiveBytes)
{
if (session == null)
{
return;
}
Nak nak = Nak.CreateObject();
nak.Reset();
nak.Decode(receiveBytes);
var queue = session.WaitingForAcksQueue;
foreach (Tuple <int, int> range in nak.ranges)
{
Interlocked.Increment(ref ServerInfo.NumberOfNakReceive);
int start = range.Item1;
int end = range.Item2;
for (int i = start; i <= end; i++)
{
session.ErrorCount++;
// HACK: Just to make sure we aren't getting unessecary load on the queue during heavy buffering.
//if (ServerInfo.AvailableBytes > 1000) continue;
Datagram datagram;
//if (queue.TryRemove(i, out datagram))
if (!session.Evicted && queue.TryRemove(i, out datagram))
{
// RTT = RTT * 0.875 + rtt * 0.125
// RTTVar = RTTVar * 0.875 + abs(RTT - rtt)) * 0.125
// RTO = RTT + 4 * RTTVar
long rtt = datagram.Timer.ElapsedMilliseconds;
long RTT = session.Rtt;
long RTTVar = session.RttVar;
session.Rtt = (long)(RTT * 0.875 + rtt * 0.125);
session.RttVar = (long)(RTTVar * 0.875 + Math.Abs(RTT - rtt) * 0.125);
session.Rto = session.Rtt + 4 * session.RttVar + 100; // SYNC time in the end
FastThreadPool.QueueUserWorkItem(delegate
{
var dgram = (Datagram)datagram;
if (Log.IsDebugEnabled)
{
Log.WarnFormat("NAK, resent datagram #{0} for {1}", dgram.Header.datagramSequenceNumber, session.Username);
}
SendDatagram(session, dgram);
Interlocked.Increment(ref ServerInfo.NumberOfResends);
});
}
else
{
if (Log.IsDebugEnabled)
{
Log.WarnFormat("NAK, no datagram #{0} for {1}", i, session.Username);
}
}
}
}
nak.PutPool();
}