Paper/patches/server/0684-Improve-and-expand-AsyncCatcher.patch

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 92d447b938592cabad2e09d0893165b9f043d5b4..f6d42ce7b0c058424e88c89dc1d0d0977c55c893 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1653,6 +1653,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
     }
 
     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
         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 090d256dc5594edf1b053cc072b177cbf92143bb..27da81c4577ea3c4efaf4e719c2b8256d4707920 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1120,7 +1120,7 @@ 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 47bab513feec217d875192afef61f3af95b93d24..d3fb277878adb26c7d80cf21f27070380fdfacd1 100644
--- a/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
+++ b/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
@@ -77,6 +77,7 @@ 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;
@@ -90,6 +91,7 @@ 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.
@@ -145,19 +147,23 @@ 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);
     }
@@ -169,6 +175,7 @@ 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) {
@@ -213,6 +220,7 @@ 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) {
@@ -257,6 +265,7 @@ 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);
@@ -270,6 +279,7 @@ 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
@@ -294,6 +304,7 @@ 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) {
@@ -310,6 +321,7 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
     }
 
     public void tick() {
+        org.spigotmc.AsyncCatcher.catchOp("Entity manager tick"); // Paper
         this.processPendingLoads();
         this.processUnloads();
     }
@@ -330,6 +342,7 @@ 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;
 
@@ -344,6 +357,7 @@ 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()) {
@@ -446,6 +460,7 @@ 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)) {
@@ -500,6 +515,7 @@ 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/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 1973a8ed75f9bacebebfa74dd2d06bf7d840ea4a..8b6cae9a005a6db608be85805382704ff5dc6669 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -455,6 +455,7 @@ 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(new MobEffectInstance(MobEffect.byId(effect.getType().getId()), effect.getDuration(), effect.getAmplifier(), effect.isAmbient(), effect.hasParticles(), effect.hasIcon()), 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 5409f230fdd53b70fc03c58177438534731ad4e6..c02a04d284734b5f545b64307ed4aea337c1465f 100644
--- a/src/main/java/org/spigotmc/AsyncCatcher.java
+++ b/src/main/java/org/spigotmc/AsyncCatcher.java
@@ -12,6 +12,7 @@ public class AsyncCatcher
     {
         if ( !io.papermc.paper.util.TickThread.isTickThread() ) // Paper // Paper - rewrite chunk system
         {
+            MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); // Paper
             throw new IllegalStateException( "Asynchronous " + reason + "!" );
         }
     }