Paper/Spigot-Server-Patches/0182-handle-PacketPlayInKeepAlive-async.patch
Zach Brown 70ce6ce831
Move version command update checking to the implementation
This makes it easier for downstream projects (forks) to replace the
version fetching system with their own. It is as simple as implementing
an interface and overriding the default implementation of
org.bukkit.UnsafeValues#getVersionFetcher()

It also makes it easier for us to organize things like the version
history feature.

Lastly I have updated the paper implementation to check against the site
API rather than against jenkins.
2019-05-27 04:13:41 -05:00

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From 330817dca764349bb50c946483075807774e49e8 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 5 Oct 2017 01:54:07 +0100
Subject: [PATCH] handle PacketPlayInKeepAlive async
In 1.12.2, Mojang moved the processing of PacketPlayInKeepAlive off the main
thread, while entirely correct for the server, this causes issues with
plugins which are expecting the PlayerQuitEvent on the main thread.
In order to counteract some bad behavior, we will post handling of the
disconnection to the main thread, but leave the actual processing of the packet
off the main thread.
also adding some additional logging in order to help work out what is causing
random disconnections for clients.
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 572da14f9..61793dd1d 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2503,14 +2503,18 @@ public class PlayerConnection implements PacketListenerPlayIn {
@Override
public void a(PacketPlayInKeepAlive packetplayinkeepalive) {
- PlayerConnectionUtils.ensureMainThread(packetplayinkeepalive, this, this.player.getWorldServer()); // CraftBukkit
+ //PlayerConnectionUtils.ensureMainThread(packetplayinkeepalive, this, this.player.getWorldServer()); // CraftBukkit // Paper - This shouldn't be on the main thread
if (this.awaitingKeepAlive && packetplayinkeepalive.b() == this.h) {
int i = (int) (SystemUtils.getMonotonicMillis() - this.lastKeepAlive);
this.player.ping = (this.player.ping * 3 + i) / 4;
this.awaitingKeepAlive = false;
} else if (!this.isExemptPlayer()) {
- this.disconnect(new ChatMessage("disconnect.timeout", new Object[0]));
+ // Paper start - This needs to be handled on the main thread for plugins
+ minecraftServer.scheduleOnMain(() -> {
+ this.disconnect(new ChatMessage("disconnect.timeout"));
+ });
+ // Paper end
}
}
--
2.21.0