private void SendUpdateStatePacket(UpdateState state, User user, IPAddress brdIp)
{
UdpPacket packet = new UdpPacket();
packet.Address = user.Address;
packet.Port = user.Port;
packet.ToMAC = "";
packet.FromMAC = user.ID;
packet.Command = UdpPacket.CMD_STATE;
UdpPacketUserStateExtend entryExtend = new UdpPacketUserStateExtend();
entryExtend.User = user;
entryExtend.UpdateState = state;
packet.Extend = entryExtend;
UdpPacket packetWrap = new UdpPacket();
packetWrap.Address = brdIp;
packetWrap.Port = this.Port;
packetWrap.ToMAC = "";
packetWrap.FromMAC = this.MAC;
packetWrap.Command = UdpPacket.CMD_RETRANSMIT;
IPacketEncoder encoder = PacketEncoderFactory.CreateEncoder(packet);
EncodeResult result = encoder.Encode();
UdpPacketRetransExtend extend = new UdpPacketRetransExtend(result.Fragments[0]);
packetWrap.Extend = extend;
_client.Send(packetWrap);
}
private static void EncodeRetransmitExtend(BinaryWriter wtr, object extendObj)
{
UdpPacketRetransExtend extend = extendObj as UdpPacketRetransExtend;
wtr.Write(extend.PacketID);
wtr.Write(extend.Address.ToString());
wtr.Write(extend.Port);
wtr.Write(extend.Length);
wtr.Write(extend.PacketBuf);
}
private static UdpPacketRetransExtend ResolveRetransmitExtend(BinaryReader rdr)
{
long pktId = rdr.ReadInt64();
string strIp = rdr.ReadString();
int port = rdr.ReadInt32();
int len = rdr.ReadInt32();
byte[] buf = rdr.ReadBytes(len);
UdpPacketRetransExtend extend = new UdpPacketRetransExtend(buf);
extend.PacketID = pktId;
extend.Address = IPAddress.Parse(strIp);
extend.Port = port;
return(extend);
}
private void RetransPacket(UdpPacket packet)
{
if (packet.CheckSendResponse)
{
#region 需要回应收到包
if (packet.Version == Packet.VERSION)
{
UdpPacket packetRsp = new UdpPacket();
packetRsp.Address = packet.Address;
packetRsp.Port = packet.Port;
packet.ToMAC = packet.ToMAC;
packetRsp.FromMAC = this.MAC;
packetRsp.Command = UdpPacket.CMD_RESPONSE;
UdpPacketResponseExtend extendRsp = new UdpPacketResponseExtend();
extendRsp.ID = packet.ID;
packetRsp.Extend = extendRsp;
_client.Send(packetRsp);
}
#endregion
}
UdpPacketRetransExtend extend = packet.Extend as UdpPacketRetransExtend;
//修改目的地后转送
UdpPacket retransPacket = new UdpPacket();
retransPacket.Address = extend.Address;//传送目的地
retransPacket.Port = extend.Port;
retransPacket.FromMAC = this.MAC;
retransPacket.Command = UdpPacket.CMD_RETRANSMIT | UdpPacket.CMD_OPTION_NEED_RESPONSE;
UdpPacketRetransExtend retransExtend = new UdpPacketRetransExtend(extend.PacketBuf);
//更改来源地址
retransExtend.PacketID = packet.ID;
retransExtend.Address = packet.Address;
retransExtend.Port = packet.Port;
retransPacket.Extend = extend;
_client.Send(retransPacket);
LoggerFactory.Debug("retrans:{0}", retransPacket);
}
