At the time this was re-added, there was concern around how the JIT would handle the system property that enabled it. This shouldn't be a problem, and as such we no longer need to block access to it. The Vanilla Method Profiler will not provide much to most users however there is no harm in providing it as an option. For most users, the recommended and supported method for determining performance issues with Paper will continue to be Timings.
47 lines
2.3 KiB
Diff
47 lines
2.3 KiB
Diff
From 041fa5d77011eb2a6a790046228fa84d3afbaece Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Thu, 5 Oct 2017 01:54:07 +0100
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Subject: [PATCH] handle PacketPlayInKeepAlive async
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In 1.12.2, Mojang moved the processing of PacketPlayInKeepAlive off the main
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thread, while entirely correct for the server, this causes issues with
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plugins which are expecting the PlayerQuitEvent on the main thread.
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In order to counteract some bad behavior, we will post handling of the
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disconnection to the main thread, but leave the actual processing of the packet
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off the main thread.
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also adding some additional logging in order to help work out what is causing
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random disconnections for clients.
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diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index aa57ff8e..869a2b40 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -2230,14 +2230,20 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
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}
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public void a(PacketPlayInKeepAlive packetplayinkeepalive) {
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- PlayerConnectionUtils.ensureMainThread(packetplayinkeepalive, this, this.player.x()); // CraftBukkit
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+ //PlayerConnectionUtils.ensureMainThread(packetplayinkeepalive, this, this.player.x()); // CraftBukkit // Paper - This shouldn't be on the main thread
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if (this.g && packetplayinkeepalive.a() == this.h) {
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int i = (int) (this.d() - this.f);
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this.player.ping = (this.player.ping * 3 + i) / 4;
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this.g = false;
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} else if (!this.player.getName().equals(this.minecraftServer.Q())) {
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- this.disconnect(new ChatMessage("disconnect.timeout", new Object[0]));
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+ // Paper start - This needs to be handled on the main thread for plugins
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+ PlayerConnection.LOGGER.warn("{} sent an invalid keepalive! pending keepalive: {} got id: {} expected id: {}",
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+ this.player.getName(), this.isPendingPing(), packetplayinkeepalive.a(), this.getKeepAliveID());
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+ minecraftServer.postToMainThread(() -> {
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+ this.disconnect(new ChatMessage("disconnect.timeout", new Object[0]));
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+ });
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+ // Paper end
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}
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}
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--
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2.14.3
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