PaperMC/patches/server/0472-Buffer-joins-to-world.patch
Jake Potrebic b3b04f2ca1
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#8515)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
9a4de097 SPIGOT-7171: Ability to get the IP/hostname players are requesting status of

CraftBukkit Changes:
f43634ae4 SPIGOT-7170: Cannot set slots in custom smithing inventory
48f3a2258 SPIGOT-7171: Ability to get the IP/hostname players are requesting status of
30e31b4d1 SPIGOT-7177: Certain blocks don't call BlockCanBuildEvent
982364797 SPIGOT-7174: Avoid adding air to CraftMetaBundle

Spigot Changes:
6198b5ae PR-122: Add missing parentheses to pumpkin and melon growth modifier
1aec3fc1 Rebuild patches
2022-10-30 19:44:25 -07:00

37 lines
2 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 bbedcdb71a326b3286805d0081e71c54a4312622..22e2e314a4bb1b22758130d4e9065f9b87b0116e 100644
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
@@ -426,8 +426,23 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
}
// Paper end
+ private static final int MAX_PER_TICK = io.papermc.paper.configuration.GlobalConfiguration.get().misc.maxJoinsPerTick; // Paper
+ private static int joinAttemptsThisTick; // Paper
+ private static int currTick; // Paper
public void tick() {
this.flushQueue();
+ // Paper start
+ if (currTick != net.minecraft.server.MinecraftServer.currentTick) {
+ currTick = net.minecraft.server.MinecraftServer.currentTick;
+ joinAttemptsThisTick = 0;
+ }
+ // Paper end
+ if (this.packetListener instanceof net.minecraft.server.network.ServerLoginPacketListenerImpl) {
+ if ( ((net.minecraft.server.network.ServerLoginPacketListenerImpl) this.packetListener).state != net.minecraft.server.network.ServerLoginPacketListenerImpl.State.READY_TO_ACCEPT // Paper
+ || (joinAttemptsThisTick++ < MAX_PER_TICK)) { // Paper - limit the number of joins which can be processed each tick
+ ((net.minecraft.server.network.ServerLoginPacketListenerImpl) this.packetListener).tick();
+ } // Paper
+ }
PacketListener packetlistener = this.packetListener;
if (packetlistener instanceof TickablePacketListener) {