f37381ea8a
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
- Keep Alive
- Chat
- Kick
- All of the packets during the Player Joined World event
Hoping that latter one helps join timeout issues more too for slow connections.
Removes processing packet queue off of main thread
- for the few cases where it is allowed, order is not necessary nor
should it even be happening concurrently in first place (handshaking/login/status)
Ensures packets sent asynchronously are dispatched on main thread
This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.
This should solve some deadlock risks
This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
38 lines
1.8 KiB
Diff
38 lines
1.8 KiB
Diff
From ee57e7fe0f18155f1f8cf5c41e5c909b39f50bc4 Mon Sep 17 00:00:00 2001
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From: Lukasz Derlatka <toranktto@gmail.com>
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Date: Mon, 11 Nov 2019 16:08:13 +0100
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Subject: [PATCH] Fix AssertionError when player hand set to empty type
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Fixes an AssertionError when setting the player's item in hand to null or a new ItemStack of Air in PlayerInteractEvent
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Fixes GH-2718
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diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
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index 24594aa0e9b..aada8d3b08b 100644
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--- a/src/main/java/net/minecraft/server/EntityLiving.java
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+++ b/src/main/java/net/minecraft/server/EntityLiving.java
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@@ -1891,6 +1891,7 @@ public abstract class EntityLiving extends Entity {
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return this.getEquipment(EnumItemSlot.OFFHAND);
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}
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+ public ItemStack getItemInHand(EnumHand enumhand) { return this.b(enumhand); } // Paper - OBFHELPER
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public ItemStack b(EnumHand enumhand) {
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if (enumhand == EnumHand.MAIN_HAND) {
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return this.getEquipment(EnumItemSlot.MAINHAND);
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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 f00653dfe7a..71d045ee00d 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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@@ -1430,6 +1430,10 @@ public class PlayerConnection implements PacketListenerPlayIn {
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if (cancelled) {
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this.player.getBukkitEntity().updateInventory(); // SPIGOT-2524
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} else {
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+ // Paper start
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+ itemstack = this.player.getItemInHand(enumhand);
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+ if (itemstack.isEmpty()) return;
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+ // Paper end
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this.player.playerInteractManager.a(this.player, worldserver, itemstack, enumhand);
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}
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// CraftBukkit end
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--
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2.26.2
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