Paper/patches/server/0443-Buffer-joins-to-world.patch
2024-01-20 23:41:26 +01:00

44 lines
2.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Wed, 19 Aug 2020 05:05:54 +0100
Subject: [PATCH] Buffer joins to world
This patch buffers the number of logins which will attempt to join
the world per tick, this attempts to reduce the impact that join floods
has on the server
diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
index 38650109c1d2683a27da5788dc6013d8d0db26ad..337010178db21cb71fde1a5a7b263bf3609a7f4c 100644
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
@@ -498,14 +498,29 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
}
// Paper end - Optimize network
+ private static final int MAX_PER_TICK = io.papermc.paper.configuration.GlobalConfiguration.get().misc.maxJoinsPerTick; // Paper - Buffer joins to world
+ private static int joinAttemptsThisTick; // Paper - Buffer joins to world
+ private static int currTick; // Paper - Buffer joins to world
public void tick() {
this.flushQueue();
+ // Paper start - Buffer joins to world
+ if (Connection.currTick != net.minecraft.server.MinecraftServer.currentTick) {
+ Connection.currTick = net.minecraft.server.MinecraftServer.currentTick;
+ Connection.joinAttemptsThisTick = 0;
+ }
+ // Paper end - Buffer joins to world
PacketListener packetlistener = this.packetListener;
if (packetlistener instanceof TickablePacketListener) {
TickablePacketListener tickablepacketlistener = (TickablePacketListener) packetlistener;
+ // Paper start - Buffer joins to world
+ if (!(this.packetListener instanceof net.minecraft.server.network.ServerLoginPacketListenerImpl loginPacketListener)
+ || loginPacketListener.state != net.minecraft.server.network.ServerLoginPacketListenerImpl.State.VERIFYING
+ || Connection.joinAttemptsThisTick++ < MAX_PER_TICK) {
tickablepacketlistener.tick();
+ }
+ // Paper end - Buffer joins to world
}
if (!this.isConnected() && !this.disconnectionHandled) {