diff --git a/Spigot-Server-Patches/0347-Optimize-Hoppers.patch b/Spigot-Server-Patches/0347-Optimize-Hoppers.patch new file mode 100644 index 000000000..b49881507 --- /dev/null +++ b/Spigot-Server-Patches/0347-Optimize-Hoppers.patch @@ -0,0 +1,303 @@ +From 7f3ca691279fafa7f54168bc9ac43b491196285b Mon Sep 17 00:00:00 2001 +From: Aikar +Date: Wed, 27 Apr 2016 22:09:52 -0400 +Subject: [PATCH] Optimize Hoppers + +* Removes unnecessary extra calls to .update() that are very expensive +* Lots of itemstack cloning removed. Only clone if the item is actually moved +* Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items. + However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on. +* Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory +* Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration + +diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java +index 458baf4442..a87258bbed 100644 +--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java ++++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java +@@ -404,6 +404,15 @@ public class PaperWorldConfig { + squidMaxSpawnHeight = getDouble("squid-spawn-height.maximum", 0.0D); + } + ++ public boolean cooldownHopperWhenFull = true; ++ public boolean disableHopperMoveEvents = false; ++ private void hopperOptimizations() { ++ cooldownHopperWhenFull = getBoolean("hopper.cooldown-when-full", cooldownHopperWhenFull); ++ log("Cooldown Hoppers when Full: " + (cooldownHopperWhenFull ? "enabled" : "disabled")); ++ disableHopperMoveEvents = getBoolean("hopper.disable-move-event", disableHopperMoveEvents); ++ log("Hopper Move Item Events: " + (disableHopperMoveEvents ? "disabled" : "enabled")); ++ } ++ + public boolean disableSprintInterruptionOnAttack; + private void disableSprintInterruptionOnAttack() { + disableSprintInterruptionOnAttack = getBoolean("game-mechanics.disable-sprint-interruption-on-attack", false); +diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java +index da11ec1672..d96fdad668 100644 +--- a/src/main/java/net/minecraft/server/ItemStack.java ++++ b/src/main/java/net/minecraft/server/ItemStack.java +@@ -459,8 +459,9 @@ public final class ItemStack { + return this.getItem().a(this, entityhuman, entityliving, enumhand); + } + +- public ItemStack cloneItemStack() { +- ItemStack itemstack = new ItemStack(this.getItem(), this.count); ++ public ItemStack cloneItemStack() { return cloneItemStack(false); } // Paper ++ public ItemStack cloneItemStack(boolean origItem) { // Paper ++ ItemStack itemstack = new ItemStack(origItem ? this.item : this.getItem(), this.count); // Paper + + itemstack.d(this.B()); + if (this.tag != null) { +diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java +index 5fdd65b083..f8a1c3b8fa 100644 +--- a/src/main/java/net/minecraft/server/MinecraftServer.java ++++ b/src/main/java/net/minecraft/server/MinecraftServer.java +@@ -1023,6 +1023,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati + + if (true || i == 0 || this.getAllowNether()) { // CraftBukkit + WorldServer worldserver = this.worlds.get(i); ++ TileEntityHopper.skipHopperEvents = worldserver.paperConfig.disableHopperMoveEvents || org.bukkit.event.inventory.InventoryMoveItemEvent.getHandlerList().getRegisteredListeners().length == 0; // Paper + + this.methodProfiler.a(() -> { + return worldserver.getWorldData().getName(); +diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java +index 536fd37254..d2359a30f8 100644 +--- a/src/main/java/net/minecraft/server/TileEntity.java ++++ b/src/main/java/net/minecraft/server/TileEntity.java +@@ -52,6 +52,7 @@ public abstract class TileEntity implements KeyedObject { // Paper + public void setCurrentChunk(Chunk chunk) { + this.currentChunk = chunk != null ? new java.lang.ref.WeakReference<>(chunk) : null; + } ++ static boolean IGNORE_TILE_UPDATES = false; + // Paper end + + @Nullable +@@ -124,6 +125,7 @@ public abstract class TileEntity implements KeyedObject { // Paper + + public void update() { + if (this.world != null) { ++ if (IGNORE_TILE_UPDATES) return; // Paper + this.f = this.world.getType(this.position); + this.world.b(this.position, this); + if (!this.f.isAir()) { +diff --git a/src/main/java/net/minecraft/server/TileEntityHopper.java b/src/main/java/net/minecraft/server/TileEntityHopper.java +index bb41d4780f..ef0f8d5c27 100644 +--- a/src/main/java/net/minecraft/server/TileEntityHopper.java ++++ b/src/main/java/net/minecraft/server/TileEntityHopper.java +@@ -190,6 +190,154 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + return false; + } + ++ // Paper start - Optimize Hoppers ++ private static boolean skipPullModeEventFire = false; ++ private static boolean skipPushModeEventFire = false; ++ static boolean skipHopperEvents = false; ++ ++ private boolean hopperPush(IInventory iinventory, EnumDirection enumdirection) { ++ skipPushModeEventFire = skipHopperEvents; ++ boolean foundItem = false; ++ for (int i = 0; i < this.getSize(); ++i) { ++ if (!this.getItem(i).isEmpty()) { ++ foundItem = true; ++ ItemStack origItemStack = this.getItem(i); ++ ItemStack itemstack = origItemStack; ++ ++ final int origCount = origItemStack.getCount(); ++ final int moved = Math.min(world.spigotConfig.hopperAmount, origCount); ++ origItemStack.setCount(moved); ++ ++ // We only need to fire the event once to give protection plugins a chance to cancel this event ++ // Because nothing uses getItem, every event call should end up the same result. ++ if (!skipPushModeEventFire) { ++ itemstack = callPushMoveEvent(iinventory, itemstack); ++ if (itemstack == null) { // cancelled ++ origItemStack.setCount(origCount); ++ return false; ++ } ++ } ++ final ItemStack itemstack2 = addItem(this, iinventory, itemstack, enumdirection); ++ final int remaining = itemstack2.getCount(); ++ if (remaining != moved) { ++ origItemStack = origItemStack.cloneItemStack(true); ++ origItemStack.setCount(origCount - moved + remaining); ++ this.setItem(i, origItemStack); ++ iinventory.update(); ++ return true; ++ } ++ origItemStack.setCount(origCount); ++ } ++ } ++ if (foundItem && world.paperConfig.cooldownHopperWhenFull) { // Inventory was full - cooldown ++ this.setCooldown(world.spigotConfig.hopperTransfer); ++ } ++ return false; ++ } ++ ++ private static boolean hopperPull(IHopper ihopper, IInventory iinventory, int i) { ++ ItemStack origItemStack = iinventory.getItem(i); ++ ItemStack itemstack = origItemStack; ++ final int origCount = origItemStack.getCount(); ++ final World world = ihopper.getWorld(); ++ final int moved = Math.min(world.spigotConfig.hopperAmount, origCount); ++ itemstack.setCount(moved); ++ ++ if (!skipPullModeEventFire) { ++ itemstack = callPullMoveEvent(ihopper, iinventory, itemstack); ++ if (itemstack == null) { // cancelled ++ origItemStack.setCount(origCount); ++ // Drastically improve performance by returning true. ++ // No plugin could of relied on the behavior of false as the other call ++ // site for IMIE did not exhibit the same behavior ++ return true; ++ } ++ } ++ ++ final ItemStack itemstack2 = addItem(iinventory, ihopper, itemstack, null); ++ final int remaining = itemstack2.getCount(); ++ if (remaining != moved) { ++ origItemStack = origItemStack.cloneItemStack(true); ++ origItemStack.setCount(origCount - moved + remaining); ++ IGNORE_TILE_UPDATES = true; ++ iinventory.setItem(i, origItemStack); ++ IGNORE_TILE_UPDATES = false; ++ iinventory.update(); ++ return true; ++ } ++ origItemStack.setCount(origCount); ++ ++ if (world.paperConfig.cooldownHopperWhenFull) { ++ cooldownHopper(ihopper); ++ } ++ ++ return false; ++ } ++ ++ private ItemStack callPushMoveEvent(IInventory iinventory, ItemStack itemstack) { ++ Inventory destinationInventory = getInventory(iinventory); ++ InventoryMoveItemEvent event = new InventoryMoveItemEvent(this.getOwner(false).getInventory(), ++ CraftItemStack.asCraftMirror(itemstack), destinationInventory, true); ++ boolean result = event.callEvent(); ++ if (!event.calledGetItem && !event.calledSetItem) { ++ skipPushModeEventFire = true; ++ } ++ if (!result) { ++ cooldownHopper(this); ++ return null; ++ } ++ ++ if (event.calledSetItem) { ++ return CraftItemStack.asNMSCopy(event.getItem()); ++ } else { ++ return itemstack; ++ } ++ } ++ ++ private static ItemStack callPullMoveEvent(IHopper hopper, IInventory iinventory, ItemStack itemstack) { ++ Inventory sourceInventory = getInventory(iinventory); ++ Inventory destination = getInventory(hopper); ++ ++ InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, ++ // Mirror is safe as we no plugins ever use this item ++ CraftItemStack.asCraftMirror(itemstack), destination, false); ++ boolean result = event.callEvent(); ++ if (!event.calledGetItem && !event.calledSetItem) { ++ skipPullModeEventFire = true; ++ } ++ if (!result) { ++ cooldownHopper(hopper); ++ return null; ++ } ++ ++ if (event.calledSetItem) { ++ return CraftItemStack.asNMSCopy(event.getItem()); ++ } else { ++ return itemstack; ++ } ++ } ++ ++ private static Inventory getInventory(IInventory iinventory) { ++ Inventory sourceInventory;// Have to special case large chests as they work oddly ++ if (iinventory instanceof InventoryLargeChest) { ++ sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory); ++ } else if (iinventory instanceof TileEntity) { ++ sourceInventory = ((TileEntity) iinventory).getOwner(false).getInventory(); ++ } else { ++ sourceInventory = iinventory.getOwner().getInventory(); ++ } ++ return sourceInventory; ++ } ++ ++ private static void cooldownHopper(IHopper hopper) { ++ if (hopper instanceof TileEntityHopper) { ++ ((TileEntityHopper) hopper).setCooldown(hopper.getWorld().spigotConfig.hopperTransfer); ++ } else if (hopper instanceof EntityMinecartHopper) { ++ ((EntityMinecartHopper) hopper).setCooldown(hopper.getWorld().spigotConfig.hopperTransfer / 2); ++ } ++ } ++ ++ // Paper end + private boolean s() { + IInventory iinventory = this.D(); + +@@ -201,6 +349,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + if (this.a(iinventory, enumdirection)) { + return false; + } else { ++ return hopperPush(iinventory, enumdirection); /* // Paper - disable rest + for (int i = 0; i < this.getSize(); ++i) { + if (!this.getItem(i).isEmpty()) { + ItemStack itemstack = this.getItem(i).cloneItemStack(); +@@ -242,7 +391,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + } + } + +- return false; ++ return false;*/ // Paper - end commenting out replaced block for Hopper Optimizations + } + } + } +@@ -313,6 +462,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + if (b(iinventory, enumdirection)) { + return false; + } ++ skipPullModeEventFire = skipHopperEvents; // Paper + + if (iinventory instanceof IWorldInventory) { + IWorldInventory iworldinventory = (IWorldInventory) iinventory; +@@ -355,6 +505,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + ItemStack itemstack = iinventory.getItem(i); + + if (!itemstack.isEmpty() && b(iinventory, itemstack, i, enumdirection)) { ++ return hopperPull(ihopper, iinventory, i); /* // Paper - disable rest + ItemStack itemstack1 = itemstack.cloneItemStack(); + // ItemStack itemstack2 = addItem(iinventory, ihopper, iinventory.splitStack(i, 1), (EnumDirection) null); + // CraftBukkit start - Call event on collection of items from inventories into the hopper +@@ -395,7 +546,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + } + + itemstack1.subtract(origCount - itemstack2.getCount()); // Spigot +- iinventory.setItem(i, itemstack1); ++ iinventory.setItem(i, itemstack1);*/ // Paper - end commenting out replaced block for Hopper Optimizations + } + + return false; +@@ -404,7 +555,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + public static boolean a(IInventory iinventory, EntityItem entityitem) { + boolean flag = false; + // CraftBukkit start +- InventoryPickupItemEvent event = new InventoryPickupItemEvent(iinventory.getOwner().getInventory(), (org.bukkit.entity.Item) entityitem.getBukkitEntity()); ++ InventoryPickupItemEvent event = new InventoryPickupItemEvent(getInventory(iinventory), (org.bukkit.entity.Item) entityitem.getBukkitEntity()); // Paper - use getInventory() to avoid snapshot creation + entityitem.world.getServer().getPluginManager().callEvent(event); + if (event.isCancelled()) { + return false; +@@ -458,7 +609,9 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi + boolean flag1 = iinventory1.P_(); + + if (itemstack1.isEmpty()) { ++ IGNORE_TILE_UPDATES = true; // Paper + iinventory1.setItem(i, itemstack); ++ IGNORE_TILE_UPDATES = false; // Paper + itemstack = ItemStack.a; + flag = true; + } else if (a(itemstack1, itemstack)) { +-- +2.18.0 +