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Fix preemptive connection dropping during shutdown process (#8546)

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Denery 2022-11-27 20:20:31 +03:00 committed by GitHub
parent 28b4027d45
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LICENSE.md
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@ -53,4 +53,5 @@ Nick Hensel <nickhensel25@icloud.com>
vytskalt <vytskalt@protonmail.com>
TheFruxz <cedricspitzer@outlook.de>
Kieran Wallbanks <kieran.wallbanks@gmail.com>
Denery <dorofeevij@gmail.com>
```

23
patches/server/0949-Fix-player-kick-on-shutdown.patch Normal file
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@ -0,0 +1,23 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Denery <dorofeevij@gmail.com>
Date: Sun, 6 Nov 2022 02:02:46 +0300
Subject: [PATCH] Fix player kick on shutdown
Fix preemptive player kick on a server shutdown.
If you update minecraft version / upstream and something is changed in this method make sure that a server doesn't disconnect a player preemptively,
also check if all packets are ignored during the shutdown process.
See net.minecraft.network.Connection#channelRead0(ChannelHandlerContext, Packet) and net.minecraft.util.thread.BlockableEventLoop#executeIfPossible(Runnable)
diff --git a/src/main/java/net/minecraft/network/protocol/PacketUtils.java b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
index 8bc0cb9ad5bb4e76d962ff54305e2c08e279a17b..edefab4e22ee7217e17eb036165ce58788d4c782 100644
--- a/src/main/java/net/minecraft/network/protocol/PacketUtils.java
+++ b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
@@ -41,7 +41,7 @@ public class PacketUtils {
public static <T extends PacketListener> void ensureRunningOnSameThread(Packet<T> packet, T listener, BlockableEventLoop<?> engine) throws RunningOnDifferentThreadException {
if (!engine.isSameThread()) {
- engine.executeIfPossible(() -> {
+ engine.execute(() -> { // Paper - Fix preemptive player kick on a server shutdown.
packetProcessing.push(listener); // Paper - detailed watchdog information
try { // Paper - detailed watchdog information
if (MinecraftServer.getServer().hasStopped() || (listener instanceof ServerGamePacketListenerImpl && ((ServerGamePacketListenerImpl) listener).processedDisconnect)) return; // CraftBukkit, MC-142590