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feat: Adds a memory mirrored ring buffer for networking. (#1533)

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## Breaking Changes

Incoming packet registration signature has changed to:
```cs
delegate* void OnReceiveCallback(NetState state, SpanReader reader, int packetLength);

IncomingPackets.Register(int packetID, int length, bool ingame, OnReceiveCallback onReceive);
```

For example, an incoming packet handler signature would now look like this:
```cs
public static void SomeIncomingPacket(NetState state, SpanReader reader, int packetLength)
{
    // Parse the data
}
```

## Summary

Updates the network Pipe class to use a mirrored memory technique. This technique involves mapping the same physical memory to two contiguous virtual memory spaces so the byte buffer appears duplicated. This allows writing to a double-sized array to wrap around without the need for the `CircularBuffer` classes.

In practice this allows us to use `Span<byte>` as if the buffer was a regular array.


### Bug Fixes

- [X] Fixes bad fixed length string parsing
This commit is contained in:
Kamron Batman 2023-10-09 00:57:53 -07:00 • committed by GitHub
parent 629a5008c3
commit 10a69bf754
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GPG key ID: 4AEE18F83AFDEB23
83 changed files with 958 additions and 2432 deletions
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44
Projects/Server.Tests/Tests/Network/Packets/Outgoing/ContainerPacketTests.cs
View file

@ -20,8 +20,8 @@ namespace Server.Tests.Network
var ns = PacketTestUtilities.CreateTestNetState();
ns.SendDisplayContainer(serial, gumpId);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -36,8 +36,8 @@ namespace Server.Tests.Network
ns.ProtocolChanges = ns.ProtocolChanges | ProtocolChanges.ContainerGridLines | ProtocolChanges.HighSeas;
ns.SendDisplayContainer(serial, gumpId);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -50,8 +50,8 @@ namespace Server.Tests.Network
var ns = PacketTestUtilities.CreateTestNetState();
ns.SendDisplaySpellbook(serial);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -65,8 +65,8 @@ namespace Server.Tests.Network
ns.ProtocolChanges = ns.ProtocolChanges | ProtocolChanges.ContainerGridLines | ProtocolChanges.HighSeas;
ns.SendDisplaySpellbook(serial);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -86,8 +86,8 @@ namespace Server.Tests.Network
ns.SendSpellbookContent(serial, graphic, offset, content);
ObjectPropertyList.Enabled = opl;
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -103,8 +103,8 @@ namespace Server.Tests.Network
var ns = PacketTestUtilities.CreateTestNetState();
ns.SendSpellbookContent(serial, graphic, offset, content);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -121,8 +121,8 @@ namespace Server.Tests.Network
ns.ProtocolChanges |= ProtocolChanges.ContainerGridLines;
ns.SendSpellbookContent(serial, graphic, offset, content);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -136,8 +136,8 @@ namespace Server.Tests.Network
var ns = PacketTestUtilities.CreateTestNetState();
ns.SendContainerContentUpdate(item);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -152,8 +152,8 @@ namespace Server.Tests.Network
ns.ProtocolChanges |= ProtocolChanges.ContainerGridLines;
ns.SendContainerContentUpdate(item);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -173,8 +173,8 @@ namespace Server.Tests.Network
var ns = PacketTestUtilities.CreateTestNetState();
ns.SendContainerContent(m, cont);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
[Fact]
@ -195,8 +195,8 @@ namespace Server.Tests.Network
ns.ProtocolChanges |= ProtocolChanges.ContainerGridLines;
ns.SendContainerContent(m, cont);
var result = ns.SendPipe.Reader.TryRead();
AssertThat.Equal(result.Buffer[0].AsSpan(0), expected);
var result = ns.SendPipe.Reader.AvailableToRead();
AssertThat.Equal(result, expected);
}
}
}