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Improve chunk unload queue to maintain some previous expectations

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While the previous logic was logically correct, some CB API's before
would request a chunk without removing it from the unload queue.

While this is logically wrong, some plugins seem to be causing unload issues.

This change will make anything using that one API that use to not remove from
queue, no longer remove from queue.

Hopefully other activities on the server will touch the chunk if it REALLY is in use.
This commit is contained in:
Aikar 2016-03-20 00:13:20 -04:00
parent 86800546bf
commit db0f31134f
2 changed files with 57 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
Spigot-Server-Patches/Add-World-Util-Methods.patch
View file

@ -15,12 +15,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ // Paper start
+ public Chunk getChunkIfLoaded(BlockPosition blockposition) {
+ return ((ChunkProviderServer) this.chunkProvider).getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ return this.chunkProvider.getLoadedChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ }
+ // Paper end
+
public Chunk getChunkIfLoaded(int x, int z) {
return ((ChunkProviderServer) this.chunkProvider).getChunkIfLoaded(x, z);
return ((ChunkProviderServer) this.chunkProvider).getLoadedChunkAtWithoutMarkingActive(x, z); // Paper - This is added by CB, and will not mark as active. Simply an alias
}
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
}

63
Spigot-Server-Patches/Optimize-Chunk-Unload-Queue.patch
View file

@ -69,19 +69,23 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
- Chunk chunk = chunks.get(LongHash.toLong(x, z));
- return (chunk == null) ? getChunkAt(x, z) : chunk;
+ return getChunkAt(x, z); // Paper
}
+ }
+
+ // Paper start
+ public Chunk getLoadedChunkAtWithoutMarkingActive(int i, int j) {
+ return chunks.get(LongHash.toLong(i, j));
+ }
+ // Paper end
+
public Chunk getChunkIfLoaded(int x, int z) {
- return chunks.get(LongHash.toLong(x, z));
+ return getLoadedChunkAt(x, z); // Paper - Bukkit has a duplicate method now.
}
- public Chunk getChunkIfLoaded(int x, int z) {
- return chunks.get(LongHash.toLong(x, z));
+ // getChunkIfLoaded -> getChunkIfActive
+ // this is only used by CraftBukkit now, and plugins shouldnt mark things active
+ public Chunk getChunkIfActive(int x, int z) {
+ Chunk chunk = chunks.get(LongHash.toLong(x, z));
+ return (chunk != null && chunk.isChunkActive) ? chunk : null;
}
+ // Paper end
public Chunk getLoadedChunkAt(int i, int j) {
Chunk chunk = chunks.get(LongHash.toLong(i, j)); // CraftBukkit
@ -174,10 +178,40 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
{
i += server.getChunkAt( x, z ).entityCount.get( oClass );
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
}
public Chunk getChunkIfLoaded(int x, int z) {
- return ((ChunkProviderServer) this.chunkProvider).getChunkIfLoaded(x, z);
+ return ((ChunkProviderServer) this.chunkProvider).getLoadedChunkAtWithoutMarkingActive(x, z); // Paper - This is added by CB, and will not mark as active. Simply an alias
}
+ // Paper start
+ public Chunk getChunkIfActive(int x, int z) {
+ return ((ChunkProviderServer) this.chunkProvider).getChunkIfActive(x, z);
+ }
+ // Paper end
+
protected World(IDataManager idatamanager, WorldData worlddata, WorldProvider worldprovider, MethodProfiler methodprofiler, boolean flag, ChunkGenerator gen, org.bukkit.World.Environment env) {
this.spigotConfig = new org.spigotmc.SpigotWorldConfig( worlddata.getName() ); // Spigot
this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig(worlddata.getName(), this.spigotConfig); // Paper
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 implements World {
}
// Paper start - Don't create a chunk just to unload it
- net.minecraft.server.Chunk chunk = world.getChunkProviderServer().getChunkIfLoaded(x, z);
+ net.minecraft.server.Chunk chunk = world.getChunkProviderServer().getChunkIfActive(x, z); // Paper
if (chunk == null) {
return false;
}
@@ -0,0 +0,0 @@ public class CraftWorld implements World {
continue;
}
@ -227,4 +261,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
if (neighbor != null) {
neighbor.setNeighborLoaded(-x, -z);
chunk.setNeighborLoaded(x, z);
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -0,0 +0,0 @@ public class ActivationRange
int x = MathHelper.floor( entity.locX );
int z = MathHelper.floor( entity.locZ );
// Make sure not on edge of unloaded chunk
- Chunk chunk = entity.world.getChunkIfLoaded( x >> 4, z >> 4 );
+ Chunk chunk = entity.world.getChunkIfActive( x >> 4, z >> 4 ); // Paper
if ( isActive && !( chunk != null && chunk.areNeighborsLoaded( 1 ) ) )
{
isActive = false;
--