Replacing Networking (#271)

- [X] Removing Kestrel & Libuv
- [X] Cleaning up NetState
- [X] Removing System.IO.Pipelines
- [X] Cleaning up packet reading
- [X] Adds a maximum of 5000 sockets (configurable) to prevent OOM
- [X] Replaces the AsyncState with a thread-safe wrapped boolean called NetworkState
- [X] Removes Parallel.ForEach (no perf gain)
- [X] Removes custom houses compression on another thread
- [X] Test high load scenarios

Bumps release version

Projects/Server.Tests/Network/Packets/Old/Outgoing/AccountPacketTests.cs

@@ -1,11 +1,7 @@
 using System;
 using System.Buffers;
-using System.Collections.Generic;
-using System.IO.Pipelines;
 using System.Linq;
 using System.Net;
-using Microsoft.AspNetCore.Connections;
-using Microsoft.AspNetCore.Http.Features;
 using Server.Accounting;
 using Server.Network;
 using Xunit;
@@ -111,12 +107,7 @@ namespace Server.Tests.Network.Packets
 
             var account = new TestAccount(new[] { firstMobile, null, null, null, null });
 
-            var ns = new NetState(
-                new TestConnectionContext
-                {
-                    RemoteEndPoint = IPEndPoint.Parse("127.0.0.1")
-                }
-            )
+            var ns = new NetState(null)
             {
                 Account = account,
                 ProtocolChanges = protocolChanges
@@ -653,13 +644,5 @@ namespace Server.Tests.Network.Packets
 
             public int CompareTo(TestAccount other) => other == null ? 1 : Username.CompareTo(other.Username);
         }
-
-        internal class TestConnectionContext : ConnectionContext
-        {
-            public override string ConnectionId { get; set; }
-            public override IFeatureCollection Features { get; }
-            public override IDictionary<object, object> Items { get; set; }
-            public override IDuplexPipe Transport { get; set; }
-        }
     }
 }

Projects/Server.Tests/Network/Packets/Old/Outgoing/GumpPacketTests.cs

@@ -59,12 +59,7 @@ namespace Server.Tests.Network.Packets
         [Fact]
         public void TestFastGumpPacket()
         {
-            var ns = new NetState(
-                new AccountPacketTests.TestConnectionContext
-                {
-                    RemoteEndPoint = IPEndPoint.Parse("127.0.0.1")
-                }
-            );
+            var ns = new NetState(null);
 
             var gump = new ResurrectGump(2);
 
@@ -134,12 +129,7 @@ namespace Server.Tests.Network.Packets
         [Fact]
         public void TestPackedGumpPacket()
         {
-            var ns = new NetState(
-                new AccountPacketTests.TestConnectionContext
-                {
-                    RemoteEndPoint = IPEndPoint.Parse("127.0.0.1")
-                }
-            )
+            var ns = new NetState(null)
             {
                 ProtocolChanges = ProtocolChanges.Unpack
             };
@@ -194,9 +184,8 @@ namespace Server.Tests.Network.Packets
                 layoutList.Add(str);
             }
 
-            var memOwner = SlabMemoryPool.Shared.Rent(bufferLength);
-
-            var buffer = memOwner.Memory.Span;
+            var rawBuffer = ArrayPool<byte>.Shared.Rent(bufferLength);
+            Span<byte> buffer = rawBuffer;
             var bufferPos = 0;
 
             foreach (var layout in layoutList)
@@ -211,12 +200,12 @@ namespace Server.Tests.Network.Packets
 #endif
 
             expectedData.WritePacked(ref pos, buffer.Slice(0, bufferPos));
-            memOwner.Dispose();
+            ArrayPool<byte>.Shared.Return(rawBuffer);
 
             expectedData.Write(ref pos, gump.Strings.Count);
             bufferLength = gump.Strings.Sum(str => 2 + str.Length * 2);
-            memOwner = SlabMemoryPool.Shared.Rent(bufferLength);
-            buffer = memOwner.Memory.Span;
+            rawBuffer = ArrayPool<byte>.Shared.Rent(bufferLength);
+            buffer = rawBuffer;
             bufferPos = 0;
 
             foreach (var str in gump.Strings)
@@ -225,6 +214,7 @@ namespace Server.Tests.Network.Packets
             }
 
             expectedData.WritePacked(ref pos, buffer.Slice(0, bufferPos));
+            ArrayPool<byte>.Shared.Return(rawBuffer);
 
             // Length
             expectedData.Slice(1, 2).Write((ushort)pos);

Projects/Server.Tests/Network/Packets/Old/Outgoing/MobilePacketTests.cs

@@ -154,7 +154,7 @@ namespace Server.Tests.Network.Packets
             Span<byte> expectedData = stackalloc byte[14];
             var pos = 0;
 
-            expectedData.Write(ref pos, (byte)0x6E);
+            expectedData.Write(ref pos, (byte)0x6E); // Packet ID
             expectedData.Write(ref pos, mobile);
             expectedData.Write(ref pos, (ushort)action);
             expectedData.Write(ref pos, (ushort)frameCount);
@@ -240,12 +240,7 @@ namespace Server.Tests.Network.Packets
             };
             beheld.DefaultMobileInit();
 
-            var ns = new NetState(
-                new AccountPacketTests.TestConnectionContext
-                {
-                    RemoteEndPoint = IPEndPoint.Parse("127.0.0.1")
-                }
-            )
+            var ns = new NetState(null)
             {
                 ProtocolChanges = changes
             };
@@ -642,12 +637,7 @@ namespace Server.Tests.Network.Packets
             beheld.FacialHairItemID = facialHairItemId;
             beheld.FacialHairHue = facialHairHue;
 
-            var ns = new NetState(
-                new AccountPacketTests.TestConnectionContext
-                {
-                    RemoteEndPoint = IPEndPoint.Parse("127.0.0.1")
-                }
-            )
+            var ns = new NetState(null)
             {
                 ProtocolChanges = protocolChanges
             };