mirror of
https://github.com/PaperMC/Paper.git
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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
244 lines
13 KiB
Diff
244 lines
13 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: JRoy <joshroy126@gmail.com>
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Date: Wed, 1 Jul 2020 18:01:49 -0400
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Subject: [PATCH] Remove streams from hot code
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Co-authored-by: Bjarne Koll <lynxplay101@gmail.com>
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Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
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diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
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index 4b31a91a8d8a3b231e323692d0a0f7ae04dc7e89..79e7a7adf9f9d8b9fee7ae3bb3bebab86fa7fd72 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
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@@ -52,7 +52,7 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
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if (this.hasRequiredMemories(entity)) {
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this.status = Behavior.Status.RUNNING;
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this.orderPolicy.apply(this.behaviors);
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- this.runningPolicy.apply(this.behaviors.stream(), world, entity, time);
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+ this.runningPolicy.apply(this.behaviors, world, entity, time); // Paper - Perf: Remove streams from hot code
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return true;
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} else {
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return false;
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@@ -61,11 +61,13 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
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@Override
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public final void tickOrStop(ServerLevel world, E entity, long time) {
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- this.behaviors.stream().filter((task) -> {
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- return task.getStatus() == Behavior.Status.RUNNING;
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- }).forEach((task) -> {
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- task.tickOrStop(world, entity, time);
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- });
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+ // Paper start - Perf: Remove streams from hot code
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+ for (final BehaviorControl<? super E> task : this.behaviors) {
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+ if (task.getStatus() == Behavior.Status.RUNNING) {
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+ task.tickOrStop(world, entity, time);
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+ }
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+ }
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+ // Paper end - Perf: Remove streams from hot code
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if (this.behaviors.stream().noneMatch((task) -> {
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return task.getStatus() == Behavior.Status.RUNNING;
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})) {
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@@ -77,12 +79,16 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
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@Override
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public final void doStop(ServerLevel world, E entity, long time) {
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this.status = Behavior.Status.STOPPED;
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- this.behaviors.stream().filter((task) -> {
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- return task.getStatus() == Behavior.Status.RUNNING;
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- }).forEach((task) -> {
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- task.doStop(world, entity, time);
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- });
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- this.exitErasedMemories.forEach(entity.getBrain()::eraseMemory);
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+ // Paper start - Perf: Remove streams from hot code
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+ for (final BehaviorControl<? super E> task : this.behaviors) {
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+ if (task.getStatus() == Behavior.Status.RUNNING) {
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+ task.doStop(world, entity, time);
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+ }
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+ }
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+ for (final MemoryModuleType<?> exitErasedMemory : this.exitErasedMemories) {
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+ entity.getBrain().eraseMemory(exitErasedMemory);
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+ }
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+ // Paper end - Perf: Remove streams from hot code
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}
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@Override
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@@ -116,26 +122,30 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
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public static enum RunningPolicy {
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RUN_ONE {
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+ // Paper start - Perf: Remove streams from hot code
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@Override
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- public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
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- tasks.filter((task) -> {
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- return task.getStatus() == Behavior.Status.STOPPED;
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- }).filter((task) -> {
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- return task.tryStart(world, entity, time);
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- }).findFirst();
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+ public <E extends LivingEntity> void apply(ShufflingList<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
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+ for (final BehaviorControl<? super E> task : tasks) {
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+ if (task.getStatus() == Behavior.Status.STOPPED && task.tryStart(world, entity, time)) {
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+ break;
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+ }
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+ }
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+ // Paper end - Perf: Remove streams from hot code
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}
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},
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TRY_ALL {
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+ // Paper start - Perf: Remove streams from hot code
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@Override
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- public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
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- tasks.filter((task) -> {
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- return task.getStatus() == Behavior.Status.STOPPED;
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- }).forEach((task) -> {
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- task.tryStart(world, entity, time);
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- });
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+ public <E extends LivingEntity> void apply(ShufflingList<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
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+ for (final BehaviorControl<? super E> task : tasks) {
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+ if (task.getStatus() == Behavior.Status.STOPPED) {
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+ task.tryStart(world, entity, time);
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+ }
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+ }
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+ // Paper end - Perf: Remove streams from hot code
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}
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};
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- public abstract <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time);
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+ public abstract <E extends LivingEntity> void apply(ShufflingList<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time); // Paper - Perf: Remove streams from hot code
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java b/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java
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index f1e717dc8320a00c0cc0ff53d97b74e7c1e109fe..2240fc6d5ba9530fcd62d6b560c17a275d4f164a 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java
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@@ -61,8 +61,22 @@ public class GossipContainer {
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});
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}
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+ // Paper start - Perf: Remove streams from hot code
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+ private List<GossipContainer.GossipEntry> decompress() {
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+ List<GossipContainer.GossipEntry> list = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>();
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+ for (Map.Entry<UUID, GossipContainer.EntityGossips> entry : this.gossips.entrySet()) {
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+ for (GossipContainer.GossipEntry cur : entry.getValue().decompress(entry.getKey())) {
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+ if (cur.weightedValue() != 0) {
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+ list.add(cur);
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+ }
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+ }
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+ }
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+ return list;
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+ }
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+ // Paper end - Perf: Remove streams from hot code
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+
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private Collection<GossipContainer.GossipEntry> selectGossipsForTransfer(RandomSource random, int count) {
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- List<GossipContainer.GossipEntry> list = this.unpack().toList();
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+ List<GossipContainer.GossipEntry> list = this.decompress(); // Paper - Perf: Remove streams from hot code
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if (list.isEmpty()) {
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return Collections.emptyList();
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} else {
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@@ -156,7 +170,7 @@ public class GossipContainer {
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}
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public <T> T store(DynamicOps<T> ops) {
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- return GossipContainer.GossipEntry.LIST_CODEC.encodeStart(ops, this.unpack().toList()).resultOrPartial((error) -> {
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+ return GossipContainer.GossipEntry.LIST_CODEC.encodeStart(ops, this.decompress()).resultOrPartial((error) -> { // Paper - Perf: Remove streams from hot code
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LOGGER.warn("Failed to serialize gossips: {}", (Object)error);
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}).orElseGet(ops::emptyList);
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}
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@@ -184,11 +198,23 @@ public class GossipContainer {
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final Object2IntMap<GossipType> entries = new Object2IntOpenHashMap<>();
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public int weightedValue(Predicate<GossipType> gossipTypeFilter) {
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- return this.entries.object2IntEntrySet().stream().filter((entry) -> {
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- return gossipTypeFilter.test(entry.getKey());
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- }).mapToInt((entry) -> {
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- return entry.getIntValue() * (entry.getKey()).weight;
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- }).sum();
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+ // Paper start - Perf: Remove streams from hot code
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+ int weight = 0;
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+ for (Object2IntMap.Entry<GossipType> entry : entries.object2IntEntrySet()) {
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+ if (gossipTypeFilter.test(entry.getKey())) {
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+ weight += entry.getIntValue() * entry.getKey().weight;
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+ }
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+ }
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+ return weight;
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+ }
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+
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+ public List<GossipContainer.GossipEntry> decompress(UUID uuid) {
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+ List<GossipContainer.GossipEntry> list = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>();
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+ for (Object2IntMap.Entry<GossipType> entry : entries.object2IntEntrySet()) {
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+ list.add(new GossipContainer.GossipEntry(uuid, entry.getKey(), entry.getIntValue()));
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+ }
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+ return list;
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+ // Paper end - Perf: Remove streams from hot code
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}
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public Stream<GossipContainer.GossipEntry> unpack(UUID target) {
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diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
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index a41c3365db8e9999b686f5bf4bd888458cee43a5..18e2fd705fe0db7cb9e3afe1ce7c8dcfaf93b1a5 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
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@@ -25,14 +25,18 @@ public class NearestItemSensor extends Sensor<Mob> {
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protected void doTick(ServerLevel world, Mob entity) {
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Brain<?> brain = entity.getBrain();
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List<ItemEntity> list = world.getEntitiesOfClass(ItemEntity.class, entity.getBoundingBox().inflate(32.0D, 16.0D, 32.0D), (itemEntity) -> {
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- return true;
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+ return itemEntity.closerThan(entity, MAX_DISTANCE_TO_WANTED_ITEM) && entity.wantsToPickUp(itemEntity.getItem()); // Paper - Perf: Move predicate into getEntities
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});
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list.sort(Comparator.comparingDouble(entity::distanceToSqr));
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- Optional<ItemEntity> optional = list.stream().filter((itemEntity) -> {
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- return entity.wantsToPickUp(itemEntity.getItem());
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- }).filter((itemEntity) -> {
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- return itemEntity.closerThan(entity, 32.0D);
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- }).filter(entity::hasLineOfSight).findFirst();
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- brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_WANTED_ITEM, optional);
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+ // Paper start - Perf: remove streams from hot code
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+ ItemEntity nearest = null;
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+ for (ItemEntity entityItem : list) {
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+ if (entity.hasLineOfSight(entityItem)) { // Paper - Perf: Move predicate into getEntities
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+ nearest = entityItem;
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+ break;
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+ }
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+ }
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+ brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_WANTED_ITEM, Optional.ofNullable(nearest));
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+ // Paper end - Perf: remove streams from hot code
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}
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}
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diff --git a/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java b/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
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index bb8d8edb47621665872a5e8fc01512ba40c1b913..dcb62d768d234f60af77ffb589ac2011afcfae4b 100644
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--- a/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
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+++ b/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
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@@ -36,9 +36,10 @@ public class Beardifier implements DensityFunctions.BeardifierOrMarker {
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int j = pos.getMinBlockZ();
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ObjectList<Beardifier.Rigid> objectList = new ObjectArrayList<>(10);
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ObjectList<JigsawJunction> objectList2 = new ObjectArrayList<>(32);
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- world.startsForStructure(pos, (structure) -> {
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+ // Paper start - Perf: Remove streams from hot code
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+ for (net.minecraft.world.level.levelgen.structure.StructureStart start : world.startsForStructure(pos, (structure) -> {
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return structure.terrainAdaptation() != TerrainAdjustment.NONE;
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- }).forEach((start) -> {
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+ })) { // Paper end - Perf: Remove streams from hot code
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TerrainAdjustment terrainAdjustment = start.getStructure().terrainAdaptation();
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for(StructurePiece structurePiece : start.getPieces()) {
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@@ -51,9 +52,11 @@ public class Beardifier implements DensityFunctions.BeardifierOrMarker {
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}
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for(JigsawJunction jigsawJunction : poolElementStructurePiece.getJunctions()) {
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- int i = jigsawJunction.getSourceX();
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- int j = jigsawJunction.getSourceZ();
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- if (i > i - 12 && j > j - 12 && i < i + 15 + 12 && j < j + 15 + 12) {
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+ // Paper start - decompile fix
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+ int i2 = jigsawJunction.getSourceX();
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+ int j2 = jigsawJunction.getSourceZ();
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+ if (i2 > i - 12 && j2 > j - 12 && i2 < i + 15 + 12 && j2 < j + 15 + 12) {
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+ // Paper end - decompile fix
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objectList2.add(jigsawJunction);
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}
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}
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@@ -63,7 +66,7 @@ public class Beardifier implements DensityFunctions.BeardifierOrMarker {
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}
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}
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- });
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+ } // Paper - Perf: Remove streams from hot code
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return new Beardifier(objectList.iterator(), objectList2.iterator());
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}
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