PaperMC/Spigot-Server-Patches/Avoid-blocking-on-Network-Manager-creation.patch
Shane Freeder 93a7205ba8 NOT FINISHED!!! More progress on 1.13-pre7
This work is unfinished, keep your paws off this branch!
2018-07-16 16:34:55 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 16 May 2016 23:19:16 -0400
Subject: [PATCH] Avoid blocking on Network Manager creation
Per Paper issue 294
diff --git a/src/main/java/net/minecraft/server/ServerConnection.java b/src/main/java/net/minecraft/server/ServerConnection.java
index be8d07f41..ad49673c1 100644
--- a/src/main/java/net/minecraft/server/ServerConnection.java
+++ b/src/main/java/net/minecraft/server/ServerConnection.java
@@ -0,0 +0,0 @@ public class ServerConnection {
public volatile boolean c;
private final List<ChannelFuture> f = Collections.synchronizedList(Lists.newArrayList());
private final List<NetworkManager> g = Collections.synchronizedList(Lists.newArrayList());
+ // Paper start - prevent blocking on adding a new network manager while the server is ticking
+ private final List<NetworkManager> pending = Collections.synchronizedList(Lists.<NetworkManager>newArrayList());
+ private void addPending() {
+ synchronized (pending) {
+ this.g.addAll(pending); // Paper - OBFHELPER - List of network managers
+ pending.clear();
+ }
+ }
+ // Paper end
public ServerConnection(MinecraftServer minecraftserver) {
this.e = minecraftserver;
@@ -0,0 +0,0 @@ public class ServerConnection {
NetworkManager networkmanager = new NetworkManager(EnumProtocolDirection.SERVERBOUND);
ServerConnection.this.g.add(networkmanager);
+ pending.add(networkmanager); // Paper
channel.pipeline().addLast("packet_handler", networkmanager);
networkmanager.setPacketListener(new HandshakeListener(ServerConnection.this.e, networkmanager));
}
@@ -0,0 +0,0 @@ public class ServerConnection {
synchronized (this.g) {
// Spigot Start
+ addPending(); // Paper
// This prevents players from 'gaming' the server, and strategically relogging to increase their position in the tick order
if ( org.spigotmc.SpigotConfig.playerShuffle > 0 && MinecraftServer.currentTick % org.spigotmc.SpigotConfig.playerShuffle == 0 )
{
--