优化网络反序列化，每个消息不再需要new一个MemoryStream，大大减少GC

Server/Hotfix/Module/Message/InnerMessageDispatcher.cs

@@ -11,7 +11,7 @@ namespace ETHotfix
 			try
 			{
 				Type messageType = Game.Scene.GetComponent<OpcodeTypeComponent>().GetType(packet.Opcode);
-				message = (IMessage)session.Network.MessagePacker.DeserializeFrom(messageType, packet.Bytes, packet.Offset, packet.Length);
+				message = (IMessage)session.Network.MessagePacker.DeserializeFrom(messageType, packet.Stream);
 			}
 			catch (Exception e)
 			{

Server/Hotfix/Module/Message/NetOuterComponentSystem.cs

@@ -8,7 +8,7 @@ namespace ETHotfix
 	{
 		public override void Awake(NetOuterComponent self)
 		{
-			self.Awake(NetworkProtocol.TCP);
+			self.Awake(NetworkProtocol.KCP);
 			self.MessagePacker = new ProtobufPacker();
 			self.MessageDispatcher = new OuterMessageDispatcher();
 		}
@@ -19,7 +19,7 @@ namespace ETHotfix
 	{
 		public override void Awake(NetOuterComponent self, IPEndPoint ipEndPoint)
 		{
-			self.Awake(NetworkProtocol.TCP, ipEndPoint);
+			self.Awake(NetworkProtocol.KCP, ipEndPoint);
 			self.MessagePacker = new ProtobufPacker();
 			self.MessageDispatcher = new OuterMessageDispatcher();
 		}

Server/Hotfix/Module/Message/OuterMessageDispatcher.cs

@@ -11,7 +11,7 @@ namespace ETHotfix
 			try
 			{
 				Type messageType = session.Network.Entity.GetComponent<OpcodeTypeComponent>().GetType(packet.Opcode);
-				message = session.Network.MessagePacker.DeserializeFrom(messageType, packet.Bytes, packet.Offset, packet.Length);
+				message = session.Network.MessagePacker.DeserializeFrom(messageType, packet.Stream);
 				
 			}
 			catch (Exception e)

Server/Model/Base/Helper/MongoHelper.cs

@@ -65,6 +65,11 @@ namespace ETModel
 				return BsonSerializer.Deserialize(memoryStream, type);
 			}
 		}
+		
+		public static object FromStream(Type type, Stream stream)
+		{
+			return BsonSerializer.Deserialize(stream, type);
+		}
 
 		public static T FromBson<T>(byte[] bytes)
 		{

Server/Model/Module/Message/MongoPacker.cs

 using System;
+using System.IO;
 
 namespace ETModel
 {
@@ -19,6 +20,11 @@ namespace ETModel
 			return MongoHelper.FromBson(type, bytes);
 		}
 
+		public object DeserializeFrom(Type type, Stream stream)
+		{
+			return MongoHelper.FromStream(type, stream);
+		}
+
 		public object DeserializeFrom(Type type, byte[] bytes, int index, int count)
 		{
 			return MongoHelper.FromBson(type, bytes, index, count);

Unity/Assets/Scripts/Base/Helper/ProtobufHelper.cs

@@ -82,5 +82,17 @@ namespace ETModel
 			iSupportInitialize.EndInit();
 			return t;
 		}
+		
+		public static object FromStream(Type type, Stream stream)
+		{
+			object t = Serializer.NonGeneric.Deserialize(type, stream);
+			ISupportInitialize iSupportInitialize = t as ISupportInitialize;
+			if (iSupportInitialize == null)
+			{
+				return t;
+			}
+			iSupportInitialize.EndInit();
+			return t;
+		}
 	}
 }
\ No newline at end of file

Unity/Assets/Scripts/Module/Message/ClientDispatcher.cs

@@ -17,7 +17,7 @@ namespace ETModel
 
 				OpcodeTypeComponent opcodeTypeComponent = session.Network.Entity.GetComponent<OpcodeTypeComponent>();
 				Type responseType = opcodeTypeComponent.GetType(packet.Opcode);
-				message = session.Network.MessagePacker.DeserializeFrom(responseType, packet.Bytes, packet.Offset, packet.Length);
+				message = session.Network.MessagePacker.DeserializeFrom(responseType, packet.Stream);
 			}
 			catch (Exception e)
 			{

Unity/Assets/Scripts/Module/Message/ErrorCode.cs

@@ -25,6 +25,8 @@ namespace ETModel
 		public const int ERR_SocketDisconnected = 202002;
 		public const int ERR_ReloadFail = 202003;
 		public const int ERR_ActorLocationNotFound = 202004;
+		public const int ERR_KcpConnectFail = 202005;
+		public const int ERR_KcpTimeout = 202006;
 
 		public static bool IsRpcNeedThrowException(int error)
 		{

Unity/Assets/Scripts/Module/Message/IMessagePacker.cs

 using System;
+using System.IO;
 
 namespace ETModel
 {
@@ -8,6 +9,7 @@ namespace ETModel
 		string SerializeToText(object obj);
 
 		object DeserializeFrom(Type type, byte[] bytes);
+		object DeserializeFrom(Type type, Stream stream);
 		object DeserializeFrom(Type type, byte[] bytes, int index, int count);
 		T DeserializeFrom<T>(byte[] bytes);
 		T DeserializeFrom<T>(byte[] bytes, int index, int count);

Unity/Assets/Scripts/Module/Message/NetOuterComponent.cs

@@ -22,7 +22,7 @@
 	{
 		public void Awake()
 		{
-			this.Awake(NetworkProtocol.TCP);
+			this.Awake(NetworkProtocol.KCP);
 			this.MessagePacker = new ProtobufPacker();
 			this.MessageDispatcher = new ClientDispatcher();
 		}

Unity/Assets/Scripts/Module/Message/Network/KCP/KChannel.cs

 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Net;
 using System.Net.Sockets;
@@ -33,11 +34,11 @@ namespace ETModel
 
 		private uint lastRecvTime;
 
-		private readonly byte[] cacheBytes = new byte[ushort.MaxValue];
-
 		public uint Conn;
 
 		public uint RemoteConn;
+		
+		public Packet packet = new Packet(ushort.MaxValue);
 
 		// accept
 		public KChannel(uint conn, uint remoteConn, Socket socket, IPEndPoint remoteEndPoint, KService kService) : base(kService, ChannelType.Accept)
@@ -50,6 +51,8 @@ namespace ETModel
 			kcp = new KCP(this.RemoteConn, this);
 			kcp.SetOutput(this.Output);
 			kcp.NoDelay(1, 10, 2, 1);  //fast
+			kcp.SetMTU(470);
+			kcp.WndSize(256, 256);
 			this.isConnected = true;
 
 			this.lastRecvTime = kService.TimeNow;
@@ -100,7 +103,8 @@ namespace ETModel
 			this.kcp = new KCP(responseConn, this);
 			kcp.SetOutput(this.Output);
 			kcp.NoDelay(1, 10, 2, 1);  //fast
-
+			kcp.SetMTU(470);
+			kcp.WndSize(256, 256);
 			this.lastRecvTime = this.GetService().TimeNow;
 
 			HandleSend();
@@ -108,10 +112,10 @@ namespace ETModel
 
 		public void HandleAccept(uint requestConn)
 		{
-			cacheBytes.WriteTo(0, KcpProtocalType.ACK);
-			cacheBytes.WriteTo(4, requestConn);
-			cacheBytes.WriteTo(8, this.Conn);
-			this.socket.SendTo(cacheBytes, 0, 12, SocketFlags.None, remoteEndPoint);
+			packet.Bytes.WriteTo(0, KcpProtocalType.ACK);
+			packet.Bytes.WriteTo(4, requestConn);
+			packet.Bytes.WriteTo(8, this.Conn);
+			this.socket.SendTo(packet.Bytes, 0, 12, SocketFlags.None, remoteEndPoint);
 		}
 
 		/// <summary>
@@ -119,9 +123,9 @@ namespace ETModel
 		/// </summary>
 		private void Connect(uint timeNow)
 		{
-			cacheBytes.WriteTo(0, KcpProtocalType.SYN);
-			cacheBytes.WriteTo(4, this.Conn);
-			this.socket.SendTo(cacheBytes, 0, 8, SocketFlags.None, remoteEndPoint);
+			packet.Bytes.WriteTo(0, KcpProtocalType.SYN);
+			packet.Bytes.WriteTo(4, this.Conn);
+			this.socket.SendTo(packet.Bytes, 0, 8, SocketFlags.None, remoteEndPoint);
 
 			// 200毫秒后再次update发送connect请求
 			this.GetService().AddToNextTimeUpdate(timeNow + 200, this.Id);
@@ -129,11 +133,11 @@ namespace ETModel
 
 		private void DisConnect()
 		{
-			cacheBytes.WriteTo(0, KcpProtocalType.FIN);
-			cacheBytes.WriteTo(4, this.Conn);
-			cacheBytes.WriteTo(8, this.RemoteConn);
+			packet.Bytes.WriteTo(0, KcpProtocalType.FIN);
+			packet.Bytes.WriteTo(4, this.Conn);
+			packet.Bytes.WriteTo(8, this.RemoteConn);
 			//Log.Debug($"client disconnect: {this.Conn}");
-			this.socket.SendTo(cacheBytes, 0, 12, SocketFlags.None, remoteEndPoint);
+			this.socket.SendTo(packet.Bytes, 0, 12, SocketFlags.None, remoteEndPoint);
 		}
 
 		public void Update(uint timeNow)
@@ -144,7 +148,7 @@ namespace ETModel
 				// 5秒连接不上，报错
 				if (timeNow - this.lastRecvTime > 5 * 1000)
 				{
-					this.OnError((int)SocketError.ConnectionRefused);
+					this.OnError(ErrorCode.ERR_KcpConnectFail);
 					return;
 				}
 				Connect(timeNow);
@@ -152,9 +156,9 @@ namespace ETModel
 			}
 			
 			// 超时断开连接
-			if (timeNow - this.lastRecvTime > 20 * 1000)
+			if (timeNow - this.lastRecvTime > 40 * 1000)
 			{
-				this.OnError((int)SocketError.Disconnecting);
+				this.OnError(ErrorCode.ERR_KcpTimeout);
 				return;
 			}
 			this.kcp.Update(timeNow);
@@ -189,7 +193,8 @@ namespace ETModel
 					this.OnError((int)SocketError.NetworkReset);
 					return;
 				}
-				int count = this.kcp.Recv(this.cacheBytes, 0, this.cacheBytes.Length);
+				this.packet.Stream.SetLength(ushort.MaxValue);
+				int count = this.kcp.Recv(this.packet.Bytes, 0, ushort.MaxValue);
 				if (count <= 0)
 				{
 					return;
@@ -197,17 +202,14 @@ namespace ETModel
 
 				lastRecvTime = timeNow;
 
-				this.packet.Flag = this.cacheBytes[0];
-				this.packet.Opcode = BitConverter.ToUInt16(this.cacheBytes, 1);
-				this.packet.Bytes = this.cacheBytes;
-				this.packet.Offset = Packet.Index;
-				this.packet.Length = (ushort) (count - Packet.Index);
+				this.packet.Flag = this.packet.Bytes[0];
+				this.packet.Opcode = BitConverter.ToUInt16(this.packet.Bytes, 1);
+				this.packet.Stream.SetLength(count);
+				this.packet.Stream.Seek(Packet.Index, SeekOrigin.Begin);
 				this.OnRead(packet);
 			}
 		}
 		
-		public Packet packet = new Packet();
-
 		public void Output(byte[] bytes, int count, object user)
 		{
 			this.socket.SendTo(bytes, 0, count, SocketFlags.None, this.remoteEndPoint);
@@ -240,7 +242,7 @@ namespace ETModel
 			byte[] bytes;
 			if (this.isConnected)
 			{
-				bytes = this.cacheBytes;
+				bytes = this.packet.Bytes;
 			}
 			else
 			{

Unity/Assets/Scripts/Module/Message/Network/TCP/PacketParser.cs

 using System;
+using System.IO;
 
 namespace ETModel
 {
@@ -15,30 +16,30 @@ namespace ETModel
 		public const int FlagIndex = 0;
 		public const int OpcodeIndex = 1;
 		public const int Index = 3;
-		
+
 		/// <summary>
 		/// 只读，不允许修改
 		/// </summary>
-		public byte[] Bytes { get; set; }
-		public ushort Offset { get; set; }
-		public ushort Length { get; set; }
-		public byte Flag { get; set; }
-		public ushort Opcode { get; set; }
-
-		public Packet()
+		public byte[] Bytes
 		{
+			get
+			{
+				return this.Stream.GetBuffer();
+			}
 		}
+		
+		public byte Flag { get; set; }
+		public ushort Opcode { get; set; }
+		public MemoryStream Stream { get; }
 
 		public Packet(int length)
 		{
-			this.Length = 0;
-			this.Bytes = new byte[length];
+			this.Stream = new MemoryStream(length);
 		}
 
 		public Packet(byte[] bytes)
 		{
-			this.Bytes = bytes;
-			this.Length = (ushort)bytes.Length;
+			this.Stream = new MemoryStream(bytes);
 		}
 	}
 
@@ -95,9 +96,10 @@ namespace ETModel
 							this.packet.Flag = this.cache[0];
 							this.buffer.Read(this.cache, 0, 2);
 							this.packet.Opcode = BitConverter.ToUInt16(this.cache, 0);
-							this.buffer.Read(this.packet.Bytes, 0, this.packetSize - Packet.Index);
-							this.packet.Length = (ushort) (this.packetSize - Packet.Index);
-							this.packet.Offset = 0;
+							
+							this.packet.Stream.Seek(0, SeekOrigin.Begin);
+							this.packet.Stream.SetLength(this.packetSize - Packet.Index);
+							this.buffer.Read(this.packet.Stream.GetBuffer(), 0, this.packetSize - Packet.Index);
 							
 							this.isOK = true;
 							this.state = ParserState.PacketSize;

Unity/Assets/Scripts/Module/Message/ProtobufPacker.cs

 using System;
+using System.IO;
 
 namespace ETModel
 {
@@ -19,6 +20,11 @@ namespace ETModel
 			return ProtobufHelper.FromBytes(type, bytes);
 		}
 
+		public object DeserializeFrom(Type type, Stream stream)
+		{
+			return ProtobufHelper.FromStream(type, stream);
+		}
+
 		public object DeserializeFrom(Type type, byte[] bytes, int index, int count)
 		{
 			return ProtobufHelper.FromBytes(type, bytes, index, count);

Unity/Assets/Scripts/Module/Message/Session.cs

 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Net;
 using System.Net.Sockets;
@@ -64,7 +65,12 @@ namespace ETModel
 			{
 				action.Invoke(new ResponseMessage { Error = this.Error });
 			}
-			
+
+			if (this.Error != 0)
+			{
+				Log.Error($"session dispose: {this.Id} {this.Error}");
+			}
+
 			this.Error = 0;
 			this.channel.Dispose();
 			this.Network.Remove(id);
@@ -124,7 +130,7 @@ namespace ETModel
 			{
 				OpcodeTypeComponent opcodeTypeComponent = this.Network.Entity.GetComponent<OpcodeTypeComponent>();
 				Type responseType = opcodeTypeComponent.GetType(opcode);
-				message = this.Network.MessagePacker.DeserializeFrom(responseType, packet.Bytes, packet.Offset, packet.Length);
+				message = this.Network.MessagePacker.DeserializeFrom(responseType, packet.Stream);
 				//Log.Debug($"recv: {JsonHelper.ToJson(message)}");
 			}
 			catch (Exception e)
@@ -249,12 +255,11 @@ namespace ETModel
 
 				Packet packet = ((TChannel)this.channel).parser.packet;
 
-				Array.Copy(bytes, 0, packet.Bytes, 0, bytes.Length);
-
-				packet.Offset = 0;
-				packet.Length = (ushort)bytes.Length;
 				packet.Flag = flag;
 				packet.Opcode = opcode;
+				packet.Stream.Seek(0, SeekOrigin.Begin);
+				packet.Stream.SetLength(bytes.Length);
+				Array.Copy(bytes, 0, packet.Bytes, 0, bytes.Length);
 				session.Run(packet);
 				return;
 			}

Unity/Assets/ThirdParty/ILRuntime/Generated/CLRBindings.cs

@@ -78,7 +78,6 @@ namespace ILRuntime.Runtime.Generated
             ETModel_SessionCallbackComponent_Binding.Register(app);
             System_Collections_Generic_Dictionary_2_Int32_Action_1_ILTypeInstance_Binding.Register(app);
             ETModel_Component_Binding.Register(app);
-            ETModel_Packet_Binding.Register(app);
             ETModel_ProtobufHelper_Binding.Register(app);
             ETModel_MessageInfo_Binding.Register(app);
             System_Threading_Tasks_TaskCompletionSource_1_ILTypeInstance_Binding.Register(app);

Unity/Assets/ThirdParty/ILRuntime/Generated/ETModel_Packet_Binding.cs

@@ -15,116 +15,6 @@ namespace ILRuntime.Runtime.Generated
 {
     unsafe class ETModel_Packet_Binding
     {
-        public static void Register(ILRuntime.Runtime.Enviorment.AppDomain app)
-        {
-            BindingFlags flag = BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static | BindingFlags.DeclaredOnly;
-            MethodBase method;
-            Type[] args;
-            Type type = typeof(ETModel.Packet);
-            args = new Type[]{};
-            method = type.GetMethod("get_Opcode", flag, null, args, null);
-            app.RegisterCLRMethodRedirection(method, get_Opcode_0);
-            args = new Type[]{};
-            method = type.GetMethod("get_Flag", flag, null, args, null);
-            app.RegisterCLRMethodRedirection(method, get_Flag_1);
-            args = new Type[]{};
-            method = type.GetMethod("get_Bytes", flag, null, args, null);
-            app.RegisterCLRMethodRedirection(method, get_Bytes_2);
-            args = new Type[]{};
-            method = type.GetMethod("get_Offset", flag, null, args, null);
-            app.RegisterCLRMethodRedirection(method, get_Offset_3);
-            args = new Type[]{};
-            method = type.GetMethod("get_Length", flag, null, args, null);
-            app.RegisterCLRMethodRedirection(method, get_Length_4);
-
-
-        }
-
-
-        static StackObject* get_Opcode_0(ILIntepreter __intp, StackObject* __esp, IList<object> __mStack, CLRMethod __method, bool isNewObj)
-        {
-            ILRuntime.Runtime.Enviorment.AppDomain __domain = __intp.AppDomain;
-            StackObject* ptr_of_this_method;
-            StackObject* __ret = ILIntepreter.Minus(__esp, 1);
-
-            ptr_of_this_method = ILIntepreter.Minus(__esp, 1);
-            ETModel.Packet instance_of_this_method = (ETModel.Packet)typeof(ETModel.Packet).CheckCLRTypes(StackObject.ToObject(ptr_of_this_method, __domain, __mStack));
-            __intp.Free(ptr_of_this_method);
-
-            var result_of_this_method = instance_of_this_method.Opcode;
-
-            __ret->ObjectType = ObjectTypes.Integer;
-            __ret->Value = result_of_this_method;
-            return __ret + 1;
-        }
-
-        static StackObject* get_Flag_1(ILIntepreter __intp, StackObject* __esp, IList<object> __mStack, CLRMethod __method, bool isNewObj)
-        {
-            ILRuntime.Runtime.Enviorment.AppDomain __domain = __intp.AppDomain;
-            StackObject* ptr_of_this_method;
-            StackObject* __ret = ILIntepreter.Minus(__esp, 1);
-
-            ptr_of_this_method = ILIntepreter.Minus(__esp, 1);
-            ETModel.Packet instance_of_this_method = (ETModel.Packet)typeof(ETModel.Packet).CheckCLRTypes(StackObject.ToObject(ptr_of_this_method, __domain, __mStack));
-            __intp.Free(ptr_of_this_method);
-
-            var result_of_this_method = instance_of_this_method.Flag;
-
-            __ret->ObjectType = ObjectTypes.Integer;
-            __ret->Value = result_of_this_method;
-            return __ret + 1;
-        }
-
-        static StackObject* get_Bytes_2(ILIntepreter __intp, StackObject* __esp, IList<object> __mStack, CLRMethod __method, bool isNewObj)
-        {
-            ILRuntime.Runtime.Enviorment.AppDomain __domain = __intp.AppDomain;
-            StackObject* ptr_of_this_method;
-            StackObject* __ret = ILIntepreter.Minus(__esp, 1);
-
-            ptr_of_this_method = ILIntepreter.Minus(__esp, 1);
-            ETModel.Packet instance_of_this_method = (ETModel.Packet)typeof(ETModel.Packet).CheckCLRTypes(StackObject.ToObject(ptr_of_this_method, __domain, __mStack));
-            __intp.Free(ptr_of_this_method);
-
-            var result_of_this_method = instance_of_this_method.Bytes;
-
-            return ILIntepreter.PushObject(__ret, __mStack, result_of_this_method);
-        }
-
-        static StackObject* get_Offset_3(ILIntepreter __intp, StackObject* __esp, IList<object> __mStack, CLRMethod __method, bool isNewObj)
-        {
-            ILRuntime.Runtime.Enviorment.AppDomain __domain = __intp.AppDomain;
-            StackObject* ptr_of_this_method;
-            StackObject* __ret = ILIntepreter.Minus(__esp, 1);
-
-            ptr_of_this_method = ILIntepreter.Minus(__esp, 1);
-            ETModel.Packet instance_of_this_method = (ETModel.Packet)typeof(ETModel.Packet).CheckCLRTypes(StackObject.ToObject(ptr_of_this_method, __domain, __mStack));
-            __intp.Free(ptr_of_this_method);
-
-            var result_of_this_method = instance_of_this_method.Offset;
-
-            __ret->ObjectType = ObjectTypes.Integer;
-            __ret->Value = result_of_this_method;
-            return __ret + 1;
-        }
-
-        static StackObject* get_Length_4(ILIntepreter __intp, StackObject* __esp, IList<object> __mStack, CLRMethod __method, bool isNewObj)
-        {
-            ILRuntime.Runtime.Enviorment.AppDomain __domain = __intp.AppDomain;
-            StackObject* ptr_of_this_method;
-            StackObject* __ret = ILIntepreter.Minus(__esp, 1);
-
-            ptr_of_this_method = ILIntepreter.Minus(__esp, 1);
-            ETModel.Packet instance_of_this_method = (ETModel.Packet)typeof(ETModel.Packet).CheckCLRTypes(StackObject.ToObject(ptr_of_this_method, __domain, __mStack));
-            __intp.Free(ptr_of_this_method);
-
-            var result_of_this_method = instance_of_this_method.Length;
-
-            __ret->ObjectType = ObjectTypes.Integer;
-            __ret->Value = result_of_this_method;
-            return __ret + 1;
-        }
-
-
 
     }
 }

Unity/Hotfix/Module/Message/Session.cs

@@ -55,7 +55,7 @@ namespace ETHotfix
 
 			OpcodeTypeComponent opcodeTypeComponent = Game.Scene.GetComponent<OpcodeTypeComponent>();
 			Type responseType = opcodeTypeComponent.GetType(opcode);
-			object message = ProtobufHelper.FromBytes(responseType, packet.Bytes, packet.Offset, packet.Length);
+			object message = this.session.Network.MessagePacker.DeserializeFrom(responseType, packet.Stream);
 
 			if ((flag & 0x01) > 0)
 			{