internal async Task RunAsync()
{
// 첫 접속 패킷을 보내자
NetPacket sendPacket = NetPool.PacketPool.Alloc(PacketProperty.ResponseConnection, 8);
sendPacket.SessionIdForConnection = SessionId;
FastBitConverter.GetBytes(sendPacket.RawData, 5, _connectId);
SendRawAsync(sendPacket, DeliveryMethod.Tcp);
_isPossibleUpdate = true;
try
{
await ProcessPacketAsync();
}
finally
{
_isPossibleUpdate = false;
Close();
}
}
internal void OnReceivedRawUdpData(byte[] data, int size, NetPacket cachedPacket, SocketError error, IPEndPoint endPoint)
{
//Console.WriteLine($"buffer size : {size} packet size : {BitConverter.ToUInt16(data, 0)}");
if (size < NetPacket.HeaderSize)
return;
try
{
PacketProperty property = cachedPacket.Property;
DeliveryMethod deliveryMethod = cachedPacket.DeliveryMethod;
switch (property)
{
case PacketProperty.MtuCheck:
{
NetPacket packet = NetPool.PacketPool.Alloc(NetPacket.GetHeaderSize(PacketProperty.MtuOk));
try
{
byte getMtuId = data[3];
packet.Property = PacketProperty.MtuOk;
packet.DeliveryMethod = DeliveryMethod.Unreliable;
packet.RawData[3] = getMtuId;
SendTo(packet.RawData, 0, packet.Size, SendMode.Immediately);
}
catch (Exception ex)
{
_logger.LogError(ex, "Exception happened in MtuCheck");
}
finally
{
NetPool.PacketPool.Free(packet);
}
}
break;
case PacketProperty.MtuOk:
{
try
{
byte getMtuId = data[3];
if (getMtuId >= _mtuId)
{
_mtuId = getMtuId;
_mtu = NetPacket.PossibleMtu[getMtuId];
if (_mtuId >= NetPacket.PossibleMtu.Length)
_finishMtu = true;
//Console.WriteLine($"SetMtu : {_mtu}");
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Exception happened in MtuOk");
}
}
break;
case PacketProperty.Ping:
{
ushort sequence = BitConverter.ToUInt16(data, 3);
if (NetUtil.RelativeSequenceNumber(sequence, _pongPacket.Sequence) > 0)
{
FastBitConverter.GetBytes(_pongPacket.RawData, 5, DateTime.UtcNow.Ticks);
_pongPacket.Sequence = sequence;
SendTo(_pongPacket.RawData, 0, _pongPacket.Size, SendMode.Immediately);
}
}
break;
case PacketProperty.Pong:
{
ushort sequence = BitConverter.ToUInt16(data, 3);
if (sequence == _pingPacket.Sequence)
{
_pingTimer.Stop();
int elapsedMs = (int)_pingTimer.ElapsedMilliseconds;
_remoteTickDelta = BitConverter.ToInt64(data, 5) + (elapsedMs * TimeSpan.TicksPerMillisecond) / 2 - DateTime.UtcNow.Ticks;
UpdateRoundTripTime(elapsedMs);
//Console.WriteLine($"Pong sequence : {sequence} {elapsedMs} ms {_remoteTickDelta} microseconds");
}
}
break;
default:
{
ReadPacket(data, size, _channelOption.PacketFilter);
}
break;
}
}
catch (Exception e)
{
_logger.LogError(e, "Exception happened in OnReceivedRawUdpData");
Close();
}
}
private void IncreaseRequestRpc(byte[] data, int offset, int length)
{
_statistic.IncreaseRequestRpc(FastBitConverter.ToInt32(data, offset + 1), length);
}
public static void SetP2pSessionId(byte[] data, ushort relaySessionId)
{
FastBitConverter.GetBytes(data, 5, relaySessionId);
}
