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Paper-Old/Spigot-Server-Patches/0407-Use-ChunkStatus-cache-when-saving-protochunks.patch

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From 567cbbf93b099dd1731db47de6ccafdfe60bf142 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 22 Jun 2019 04:20:47 -0700
Subject: [PATCH] Use ChunkStatus cache when saving protochunks
The cache should contain the chunk status when saving. If not it
will load it.
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index e89738a08d..89649e73e5 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -720,8 +720,10 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
NBTTagCompound nbttagcompound;
if (chunkstatus.getType() != ChunkStatus.Type.LEVELCHUNK) {
- nbttagcompound = this.readChunkData(chunkcoordintpair);
- if (nbttagcompound != null && ChunkRegionLoader.a(nbttagcompound) == ChunkStatus.Type.LEVELCHUNK) {
+ // Paper start - Optimize save by using status cache
+ ChunkStatus statusOnDisk = this.getRegionFile(ichunkaccess.getPos(), false).getStatus(ichunkaccess.getPos().x, ichunkaccess.getPos().z, this);
+ if (statusOnDisk != null && statusOnDisk.getType() == ChunkStatus.Type.LEVELCHUNK) {
+ // Paper end
return false;
}
--
2.21.0