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Paper/Spigot-Server-Patches/0475-Prevent-opening-inventories-when-frozen.patch

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Optimize Network Manager to not need synchronization 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.
2020-05-06 11:22:03 +02:00
From cee5ee79b0e47a740b0544e662839b17dd0b1009 Mon Sep 17 00:00:00 2001
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
From: Shane Freeder <theboyetronic@gmail.com>
Date: Mon, 13 Apr 2020 07:31:44 +0100
Subject: [PATCH] Prevent opening inventories when frozen
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
Optimize Network Manager to not need synchronization 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.
2020-05-06 11:22:03 +02:00
index d51af68a920..f453ccdb020 100644
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
Use distance map to optimise entity tracker / Misc Utils Use the distance map to find candidate players for tracking. This also ports a few utility changes from Tuinity
2020-05-06 09:44:47 +02:00
@@ -380,7 +380,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
Improve blocking players from opening inventories while sleeping This is friendlier to plugins as far as the plugin is concerned, the inventory did open and immediately closed. We avoid sending the packet to client so they don't see the window flash either. If a plugin wants to avoid wasteful fake opens, they should check that the player is not sleeping before opening the inventory.
2020-04-26 09:26:21 +02:00
containerUpdateDelay = world.paperConfig.containerUpdateTickRate;
}
// Paper end
- if (!this.world.isClientSide && !this.activeContainer.canUse(this)) {
+ if (!this.world.isClientSide && this.activeContainer != this.defaultContainer && (isFrozen() || !this.activeContainer.canUse(this))) { // Paper - auto close while frozen
this.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.CANT_USE); // Paper
this.activeContainer = this.defaultContainer;
}
Use distance map to optimise entity tracker / Misc Utils Use the distance map to find candidate players for tracking. This also ports a few utility changes from Tuinity
2020-05-06 09:44:47 +02:00
@@ -1170,7 +1170,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
Improve blocking players from opening inventories while sleeping This is friendlier to plugins as far as the plugin is concerned, the inventory did open and immediately closed. We avoid sending the packet to client so they don't see the window flash either. If a plugin wants to avoid wasteful fake opens, they should check that the player is not sleeping before opening the inventory.
2020-04-26 09:26:21 +02:00
} else {
// CraftBukkit start
this.activeContainer = container;
- this.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, container.getType(), container.getTitle()));
+ if (!isFrozen()) this.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, container.getType(), container.getTitle())); // Paper
// CraftBukkit end
container.addSlotListener(this);
return OptionalInt.of(this.containerCounter);
Use distance map to optimise entity tracker / Misc Utils Use the distance map to find candidate players for tracking. This also ports a few utility changes from Tuinity
2020-05-06 09:44:47 +02:00
@@ -1908,7 +1908,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
}
@Override
- protected boolean isFrozen() {
+ public boolean isFrozen() { // Paper - protected > public
return super.isFrozen() || (this.playerConnection != null && this.playerConnection.isDisconnected()); // Paper
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
Optimize Network Manager to not need synchronization 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.
2020-05-06 11:22:03 +02:00
index a6d75c0e07a..a5e9fc90ffa 100644
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
Improve blocking players from opening inventories while sleeping This is friendlier to plugins as far as the plugin is concerned, the inventory did open and immediately closed. We avoid sending the packet to client so they don't see the window flash either. If a plugin wants to avoid wasteful fake opens, they should check that the player is not sleeping before opening the inventory.
2020-04-26 09:26:21 +02:00
@@ -350,7 +350,7 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
Improve blocking players from opening inventories while sleeping This is friendlier to plugins as far as the plugin is concerned, the inventory did open and immediately closed. We avoid sending the packet to client so they don't see the window flash either. If a plugin wants to avoid wasteful fake opens, they should check that the player is not sleeping before opening the inventory.
2020-04-26 09:26:21 +02:00
String title = container.getBukkitView().getTitle();
- player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, new ChatComponentText(title)));
+ if (!player.isFrozen()) player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, new ChatComponentText(title))); // Paper
getHandle().activeContainer = container;
getHandle().activeContainer.addSlotListener(player);
}
@@ -420,7 +420,7 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
// Now open the window
Containers<?> windowType = CraftContainer.getNotchInventoryType(inventory.getTopInventory());
String title = inventory.getTitle();
- player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, new ChatComponentText(title)));
+ if (!player.isFrozen()) player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, new ChatComponentText(title))); // Paper
player.activeContainer = container;
player.activeContainer.addSlotListener(player);
}
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
--
Optimize Network Manager to not need synchronization 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.
2020-05-06 11:22:03 +02:00
2.26.2
Prevent opening inventories when frozen
2020-04-13 08:33:46 +02:00
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