Make the recheckGaps method async like other lighting updates

Spigot-Server-Patches/0041-Configurable-async-light-updates.patch

@@ -1,11 +1,11 @@
-From d07732a069908d93da75d3a248da456f696dd8a8 Mon Sep 17 00:00:00 2001
+From 91555b67e652b6e5797f45ddc4090b0f01f81371 Mon Sep 17 00:00:00 2001
 From: Byteflux <byte@byteflux.net>
 Date: Wed, 1 Jul 2015 00:18:10 -0700
 Subject: [PATCH] Configurable async light updates
 
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 7242d45..ab4de94 100644
+index 7242d45..5a3b22a 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -11,6 +11,8 @@ import java.util.Map;
@@ -37,6 +37,39 @@ index 7242d45..ab4de94 100644
              }
  
              this.q = true;
+@@ -1044,7 +1050,7 @@ public class Chunk {
+ 
+     public void b(boolean flag) {
+         if (this.k && !this.world.worldProvider.o() && !flag) {
+-            this.h(this.world.isClientSide);
++            this.recheckGaps(this.world.isClientSide); // PaperSpigot - Asynchronous lighting updates
+         }
+ 
+         this.p = true;
+@@ -1065,6 +1071,23 @@ public class Chunk {
+ 
+     }
+ 
++    /**
++     * PaperSpigot - Recheck gaps asynchronously.
++     */
++    public void recheckGaps(final boolean isClientSide) {
++        if (!world.paperSpigotConfig.useAsyncLighting) {
++            this.h(isClientSide);
++            return;
++        }
++
++        world.lightingExecutor.submit(new Runnable() {
++            @Override
++            public void run() {
++                Chunk.this.h(isClientSide);
++            }
++        });
++    }
++
+     public boolean isReady() {
+         // Spigot Start
+         /*
 diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
 index 975d666..ae0f276 100644
 --- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -55,7 +88,7 @@ index 975d666..ae0f276 100644
              if (!this.world.c(i, j)) {
                  // CraftBukkit start
 diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
-index 915a02d..e0a7161 100644
+index 915a02d..ed0b63d 100644
 --- a/src/main/java/net/minecraft/server/World.java
 +++ b/src/main/java/net/minecraft/server/World.java
 @@ -18,6 +18,12 @@ import org.bukkit.generator.ChunkGenerator;
@@ -75,7 +108,7 @@ index 915a02d..e0a7161 100644
      public static boolean haveWeSilencedAPhysicsCrash;
      public static String blockLocation;
      private int tileTickPosition;
-+    private ExecutorService lightingExecutor; // PaperSpigot - Asynchronous lighting updates
++    public ExecutorService lightingExecutor; // PaperSpigot - Asynchronous lighting updates
  
      public static long chunkToKey(int x, int z)
      {
@@ -115,7 +148,7 @@ index 915a02d..e0a7161 100644
              // CraftBukkit end
              return false;
          } else {
-@@ -2479,11 +2486,66 @@ public abstract class World implements IBlockAccess {
+@@ -2479,11 +2486,70 @@ public abstract class World implements IBlockAccess {
                  }
              }
  
@@ -170,6 +203,10 @@ index 915a02d..e0a7161 100644
 +            }
 +        }
 +
++        if (!Bukkit.isPrimaryThread()) {
++            return this.c(enumskyblock, position, chunk, neighbors);
++        }
++
 +        lightingExecutor.submit(new Runnable() {
 +            @Override
 +            public void run() {
@@ -199,5 +236,5 @@ index bcd8b65..fa9ae6c 100644
 +    }
  }
 -- 
-1.9.5.msysgit.1
+2.4.6.windows.1
 

Spigot-Server-Patches/0054-Optimize-explosions.patch

@@ -128,7 +128,7 @@ index b3e77d5..39cf1a3 100644
 @@ -133,6 +133,7 @@ public abstract class World implements IBlockAccess {
      public static String blockLocation;
      private int tileTickPosition;
-     private ExecutorService lightingExecutor; // PaperSpigot - Asynchronous lighting updates
+     public ExecutorService lightingExecutor; // PaperSpigot - Asynchronous lighting updates
 +    public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<Explosion.CacheKey, Float>(); // PaperSpigot - Optimize explosions
  
      public static long chunkToKey(int x, int z)