private void SendAcknowledgements(Peer peer, Buffer buffer, ref bool continueSending)
{
var currentAcknowledgement = peer.Acknowledgements.Begin;
while (currentAcknowledgement != peer.Acknowledgements.End)
{
if (Protocol.Acknowledge.SIZE > buffer.BytesLeft)
{
continueSending = true;
break;
}
var acknowledgement = currentAcknowledgement.Value;
currentAcknowledgement = currentAcknowledgement.Next;
var command = new Protocol.Acknowledge
{
ChannelID = acknowledgement.Command.ChannelID,
ReceivedReliableSequenceNumber = acknowledgement.Command.ReliableSequenceNumber,
ReceivedSentTime = (ushort)acknowledgement.SentTime,
};
command.Write(buffer, Version);
if (acknowledgement.Command is Protocol.Disconnect)
{
DispatchState(peer, PeerState.ZOMBIE);
}
acknowledgement.Node.Remove();
}
}
private int HandleAcknowledge(Event evnt, Peer peer, Protocol.Acknowledge command)
{
uint receivedSentTime = command.ReceivedSentTime;
receivedSentTime |= ServiceTime & 0xFFFF0000u;
if ((receivedSentTime & 0x8000u) > (ServiceTime & 0x8000u))
{
receivedSentTime -= 0x10000u;
}
if (Utils.TimeLess(ServiceTime, receivedSentTime))
{
return(0);
}
peer.LastReceiveTime = ServiceTime;
peer.EarliestTimeout = 0;
uint roundTripTime = Utils.TimeDiff(ServiceTime, receivedSentTime);
peer.Throttle(roundTripTime);
peer.RoundTripTimeVariance -= peer.RoundTripTimeVariance / 4u;
if (roundTripTime >= peer.RoundTripTime)
{
peer.RoundTripTime += (roundTripTime - peer.RoundTripTime) / 8u;
peer.RoundTripTimeVariance += (roundTripTime - peer.RoundTripTime) / 4u;
}
else
{
peer.RoundTripTime -= (peer.RoundTripTime - roundTripTime) / 8u;
peer.RoundTripTimeVariance += (peer.RoundTripTime - roundTripTime) / 4u;
}
if (peer.RoundTripTime < peer.LowestRoundTripTime)
{
peer.LowestRoundTripTime = peer.RoundTripTime;
}
if (peer.RoundTripTimeVariance > peer.HighestRoundTripTimeVariance)
{
peer.HighestRoundTripTimeVariance = peer.RoundTripTimeVariance;
}
if (peer.PacketThrottleEpoch == 0 ||
Utils.TimeDiff(ServiceTime, peer.PacketThrottleEpoch) >= peer.PacketThrottleInterval)
{
peer.LastRoundTripTime = peer.LowestRoundTripTime;
peer.LastRoundTripTimeVariance = peer.HighestRoundTripTimeVariance;
peer.LowestRoundTripTime = peer.RoundTripTime;
peer.HighestRoundTripTimeVariance = peer.RoundTripTimeVariance;
peer.PacketThrottleEpoch = ServiceTime;
}
uint receivedReliableSequenceNumber = command.ReceivedReliableSequenceNumber;
var commandNumber = RemoveSentReliableCommand(peer, (ushort)receivedReliableSequenceNumber, command.ChannelID);
switch (peer.State)
{
case PeerState.ACKNOWLEDGING_CONNECT:
if (commandNumber != ProtocolCommand.VERIFY_CONNECT)
{
return(-1);
}
NotifyConnect(peer, evnt);
break;
case PeerState.DISCONNECTING:
if (commandNumber != ProtocolCommand.DISCONNECT)
{
return(-1);
}
NotifyDisconnect(peer, evnt);
break;
case PeerState.DISCONNECT_LATER:
if (peer.OutgoingReliableCommands.Empty &&
peer.OutgoingUnreliableCommands.Empty &&
peer.SentReliableCommands.Empty)
{
peer.Disconnect(peer.DisconnectData);
}
break;
default:
break;
}
return(0);
}