ModernUO/Projects/UOContent/Network/ProtocolExtensions.cs
Stefano Merotta f24b98f8e2
fix: Replaces throttlers and packet callbacks with function pointers (#1063)
Replaces multi-cast delegates with function pointers to gain 25% in performance and lower allocations.
2022-06-15 12:48:43 -07:00

62 lines
2.4 KiB
C#

/*************************************************************************
* ModernUO *
* Copyright (C) 2019-2021 - ModernUO Development Team *
* Email: hi@modernuo.com *
* File: ProtocolExtension.cs *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
namespace Server.Network
{
public interface IProtocolExtensionsInfo
{
public int PacketId { get; }
}
public static class ProtocolExtensions<T> where T : struct, IProtocolExtensionsInfo
{
private static readonly PacketHandler[] packetHandlers = new PacketHandler[0x100];
private static int packetId;
public static unsafe PacketHandler[] Register(T info)
{
packetId = info.PacketId;
IncomingPackets.Register(packetId, 0, false, &DecodeBundledPacket);
return packetHandlers;
}
private static unsafe void DecodeBundledPacket(NetState state, CircularBufferReader reader, int packetLength)
{
int cmd = reader.ReadByte();
PacketHandler ph = packetHandlers[cmd];
if (ph == null)
{
return;
}
if (ph.Ingame && state.Mobile == null)
{
state.LogInfo($"Sent in-game packet (0x{packetId:X2}x{cmd:X2}) before having been attached to a mobile");
state.Disconnect("Sent in-game packet before being attached to a mobile.");
}
else if (ph.Ingame && state.Mobile.Deleted)
{
state.Disconnect(string.Empty);
}
else
{
ph.OnReceive(state, reader, packetLength);
}
}
}
}