From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Wed, 25 Aug 2021 20:17:12 -0700
Subject: [PATCH] Improve and expand AsyncCatcher

Log when the async catcher is tripped
  The chunk system can swallow the exception given it's all
  built with completablefuture, so ensure it is at least printed.

Add/move several async catchers

Async catch modifications to critical entity state
  These used to be here from Spigot, but were dropped with 1.17.
  Now in 1.17, this state is _even more_ critical than it was before,
  so these must exist to catch stupid plugins.

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
     }
 
     public void internalTeleport(double d0, double d1, double d2, float f, float f1, Set<RelativeMovement> set) { // Paper
+        org.spigotmc.AsyncCatcher.catchOp("teleport"); // Paper
         // Paper start - Prevent teleporting dead entities
         if (player.isRemoved()) {
             LOGGER.info("Attempt to teleport removed player {} restricted", player.getScoreboardName());
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
     }
 
     public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause) {
-        org.spigotmc.AsyncCatcher.catchOp("effect add"); // Spigot
+        // org.spigotmc.AsyncCatcher.catchOp("effect add"); // Spigot // Paper - move to API
         if (this.isTickingEffects) {
             this.effectsToProcess.add(new ProcessableEffect(mobeffect, cause));
             return true;
diff --git a/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java b/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
+++ b/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     private boolean addEntityUuid(T entity) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity add by UUID"); // Paper
         if (!this.knownUuids.add(entity.getUUID())) {
             PersistentEntitySectionManager.LOGGER.warn("UUID of added entity already exists: {}", entity);
             return false;
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     private boolean addEntity(T entity, boolean existing) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity add"); // Paper
         // Paper start - chunk system hooks
         if (existing) {
             // I don't want to know why this is a generic type.
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     void startTicking(T entity) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity start ticking"); // Paper
         this.callbacks.onTickingStart(entity);
     }
 
     void stopTicking(T entity) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity stop ticking"); // Paper
         this.callbacks.onTickingEnd(entity);
     }
 
     void startTracking(T entity) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity start tracking"); // Paper
         this.visibleEntityStorage.add(entity);
         this.callbacks.onTrackingStart(entity);
     }
 
     void stopTracking(T entity) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity stop tracking"); // Paper
         this.callbacks.onTrackingEnd(entity);
         this.visibleEntityStorage.remove(entity);
     }
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     public void updateChunkStatus(ChunkPos chunkPos, Visibility trackingStatus) {
+        org.spigotmc.AsyncCatcher.catchOp("Update chunk status"); // Paper
         long i = chunkPos.toLong();
 
         if (trackingStatus == Visibility.HIDDEN) {
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     public void ensureChunkQueuedForLoad(long chunkPos) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity chunk save"); // Paper
         PersistentEntitySectionManager.ChunkLoadStatus persistententitysectionmanager_b = (PersistentEntitySectionManager.ChunkLoadStatus) this.chunkLoadStatuses.get(chunkPos);
 
         if (persistententitysectionmanager_b == PersistentEntitySectionManager.ChunkLoadStatus.FRESH) {
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     private void requestChunkLoad(long chunkPos) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity chunk load request"); // Paper
         this.chunkLoadStatuses.put(chunkPos, PersistentEntitySectionManager.ChunkLoadStatus.PENDING);
         ChunkPos chunkcoordintpair = new ChunkPos(chunkPos);
         CompletableFuture completablefuture = this.permanentStorage.loadEntities(chunkcoordintpair);
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     private boolean processChunkUnload(long chunkPos) {
+        org.spigotmc.AsyncCatcher.catchOp("Entity chunk unload process"); // Paper
         boolean flag = this.storeChunkSections(chunkPos, (entityaccess) -> {
             entityaccess.getPassengersAndSelf().forEach(this::unloadEntity);
         }, true); // CraftBukkit - add boolean for event call
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     private void processPendingLoads() {
+        org.spigotmc.AsyncCatcher.catchOp("Entity chunk process pending loads"); // Paper
         ChunkEntities<T> chunkentities; // CraftBukkit - decompile error
 
         while ((chunkentities = (ChunkEntities) this.loadingInbox.poll()) != null) {
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     public void tick() {
+        org.spigotmc.AsyncCatcher.catchOp("Entity manager tick"); // Paper
         this.processPendingLoads();
         this.processUnloads();
     }
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     public void autoSave() {
+        org.spigotmc.AsyncCatcher.catchOp("Entity manager autosave"); // Paper
         this.getAllChunksToSave().forEach((java.util.function.LongConsumer) (i) -> { // CraftBukkit - decompile error
             boolean flag = this.chunkVisibility.get(i) == Visibility.HIDDEN;
 
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     public void saveAll() {
+        org.spigotmc.AsyncCatcher.catchOp("Entity manager save"); // Paper
         LongSet longset = this.getAllChunksToSave();
 
         while (!longset.isEmpty()) {
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
             long i = SectionPos.asLong(blockposition);
 
             if (i != this.currentSectionKey) {
+                org.spigotmc.AsyncCatcher.catchOp("Entity move"); // Paper
                 Visibility visibility = this.currentSection.getStatus();
 
                 if (!this.currentSection.remove(this.entity)) {
@@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
 
         @Override
         public void onRemove(Entity.RemovalReason reason) {
+            org.spigotmc.AsyncCatcher.catchOp("Entity remove"); // Paper
             if (!this.currentSection.remove(this.entity)) {
                 PersistentEntitySectionManager.LOGGER.warn("Entity {} wasn't found in section {} (destroying due to {})", new Object[]{this.entity, SectionPos.of(this.currentSectionKey), reason});
             }
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -0,0 +0,0 @@ public class CraftWorld extends CraftRegionAccessor implements World {
 
     @Override
     public void playSound(Location loc, Sound sound, org.bukkit.SoundCategory category, float volume, float pitch, long seed) {
+        org.spigotmc.AsyncCatcher.catchOp("play sound"); // Paper
         if (loc == null || sound == null || category == null) return;
 
         double x = loc.getX();
@@ -0,0 +0,0 @@ public class CraftWorld extends CraftRegionAccessor implements World {
 
     @Override
     public void playSound(Location loc, String sound, org.bukkit.SoundCategory category, float volume, float pitch, long seed) {
+        org.spigotmc.AsyncCatcher.catchOp("play sound"); // Paper
         if (loc == null || sound == null || category == null) return;
 
         double x = loc.getX();
@@ -0,0 +0,0 @@ public class CraftWorld extends CraftRegionAccessor implements World {
 
     @Override
     public void playSound(Entity entity, Sound sound, org.bukkit.SoundCategory category, float volume, float pitch, long seed) {
+        org.spigotmc.AsyncCatcher.catchOp("play sound"); // Paper
         if (!(entity instanceof CraftEntity craftEntity) || entity.getWorld() != this || sound == null || category == null) return;
 
         ClientboundSoundEntityPacket packet = new ClientboundSoundEntityPacket(CraftSound.bukkitToMinecraftHolder(sound), net.minecraft.sounds.SoundSource.valueOf(category.name()), craftEntity.getHandle(), volume, pitch, seed);
@@ -0,0 +0,0 @@ public class CraftWorld extends CraftRegionAccessor implements World {
 
     @Override
     public void playSound(Entity entity, String sound, org.bukkit.SoundCategory category, float volume, float pitch, long seed) {
+        org.spigotmc.AsyncCatcher.catchOp("play sound"); // Paper
         if (!(entity instanceof CraftEntity craftEntity) || entity.getWorld() != this || sound == null || category == null) return;
 
         ClientboundSoundEntityPacket packet = new ClientboundSoundEntityPacket(Holder.direct(SoundEvent.createVariableRangeEvent(new ResourceLocation(sound))), net.minecraft.sounds.SoundSource.valueOf(category.name()), craftEntity.getHandle(), volume, pitch, seed);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -0,0 +0,0 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
 
     @Override
     public boolean addPotionEffect(PotionEffect effect, boolean force) {
+        org.spigotmc.AsyncCatcher.catchOp("effect add"); // Paper
         this.getHandle().addEffect(org.bukkit.craftbukkit.potion.CraftPotionUtil.fromBukkit(effect), EntityPotionEffectEvent.Cause.PLUGIN); // Paper - Don't ignore icon
         return true;
     }
diff --git a/src/main/java/org/spigotmc/AsyncCatcher.java b/src/main/java/org/spigotmc/AsyncCatcher.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/spigotmc/AsyncCatcher.java
+++ b/src/main/java/org/spigotmc/AsyncCatcher.java
@@ -0,0 +0,0 @@ public class AsyncCatcher
     {
         if ( (AsyncCatcher.enabled || io.papermc.paper.util.TickThread.STRICT_THREAD_CHECKS) && Thread.currentThread() != MinecraftServer.getServer().serverThread ) // Paper
         {
+            MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); // Paper
             throw new IllegalStateException( "Asynchronous " + reason + "!" );
         }
     }
