Paper/Spigot-Server-Patches/0561-Buffer-joins-to-world.patch
Mariell e38eceb42a
Updated Upstream (Spigot) (#4745)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Spigot Changes:
a19903d2 SPIGOT-520: Add option to disable player data saving
2020-11-08 10:00:43 +00:00

51 lines
2.4 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/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index ef9ca88522922948d9a6a09f2d6a6bad86ee5135..f21f1e1f815a7beccad456b07568bca117adbf1e 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -443,4 +443,9 @@ public class PaperConfig {
maxPlayerAutoSavePerTick = (playerAutoSaveRate == -1 || playerAutoSaveRate > 100) ? 10 : 20;
}
}
+
+ public static int maxJoinsPerTick;
+ private static void maxJoinsPerTick() {
+ maxJoinsPerTick = getInt("settings.max-joins-per-tick", 3);
+ }
}
diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
index 4ddd3a819648fe5418a19d4496a18dc20c4e086e..7a84ea4116be070ab878e55b0cd919f3f3688f30 100644
--- a/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/src/main/java/net/minecraft/server/NetworkManager.java
@@ -363,10 +363,22 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
}
// Paper end
+ private static final int MAX_PER_TICK = com.destroystokyo.paper.PaperConfig.maxJoinsPerTick; // Paper
+ private static int joinAttemptsThisTick; // Paper
+ private static int currTick; // Paper
public void a() {
this.p();
+ // Paper start
+ if (currTick != MinecraftServer.currentTick) {
+ currTick = MinecraftServer.currentTick;
+ joinAttemptsThisTick = 0;
+ }
+ // Paper end
if (this.packetListener instanceof LoginListener) {
+ if ( ((LoginListener) this.packetListener).getLoginState() != LoginListener.EnumProtocolState.READY_TO_ACCEPT // Paper
+ || (joinAttemptsThisTick++ < MAX_PER_TICK)) { // Paper - limit the number of joins which can be processed each tick
((LoginListener) this.packetListener).tick();
+ } // Paper
}
if (this.packetListener instanceof PlayerConnection) {