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Merge pull request #2296 from Spottedleaf/fix-loadchunk-again

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This commit is contained in:
Riley Park 2019-07-13 13:19:48 -07:00
commit bf5ad877a2
4 changed files with 103 additions and 46 deletions
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2
Spigot-Server-Patches/Anti-Xray.patch
View file

@ -1565,7 +1565,7 @@ index 761cd1355..956a47132 100644
this.a(new PacketPlayOutMultiBlockChange(this.dirtyCount, this.dirtyBlocks, chunk), false);
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index f21961d3a..f5b35b95b 100644
index 7cb5438e4..a43927781 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -0,0 +0,0 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {

2
Spigot-Server-Patches/Fix-MC-154214.patch
View file

@ -6,7 +6,7 @@ Subject: [PATCH] Fix MC-154214
Avoid adding player tickets when they're out of range of the closest player
diff --git a/src/main/java/net/minecraft/server/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java
index 99c7537ef..757b505ea 100644
index 99c7537ef2..757b505eaf 100644
--- a/src/main/java/net/minecraft/server/ChunkMapDistance.java
+++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java
@@ -0,0 +0,0 @@ public abstract class ChunkMapDistance {

141
Spigot-Server-Patches/Fix-World-isChunkGenerated-calls.patch
View file

@ -8,7 +8,7 @@ This patch also adds a chunk status cache on region files (note that
its only purpose is to cache the status on DISK)
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index bff81bdb8..dab86960a 100644
index fef44094b..539c65f85 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -0,0 +0,0 @@ public class ChunkProviderServer extends IChunkProvider {
@ -134,7 +134,7 @@ index 0daf5f99e..761cd1355 100644
public CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> getStatusFutureUnchecked(ChunkStatus chunkstatus) {
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 884c8a908..e0798c1c8 100644
index 884c8a908..e2f8b18d9 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -0,0 +0,0 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
@ -156,15 +156,48 @@ index 884c8a908..e0798c1c8 100644
+ return null;
+ }
+
+ this.getRegionFile(chunkcoordintpair, false).setStatus(chunkcoordintpair.x, chunkcoordintpair.z, ChunkRegionLoader.getStatus(nbttagcompound));
+ this.updateChunkStatusOnDisk(chunkcoordintpair, nbttagcompound);
+
+ return nbttagcompound;
+ // Paper end
+ }
+
+ // Paper start - chunk status cache "api"
+ public ChunkStatus getChunkStatusOnDiskIfCached(ChunkCoordIntPair chunkPos) {
+ RegionFile regionFile = this.getRegionFileIfLoaded(chunkPos);
+
+ return regionFile == null ? null : regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
+ }
+
+ public ChunkStatus getChunkStatusOnDisk(ChunkCoordIntPair chunkPos) throws IOException {
+ RegionFile regionFile = this.getRegionFile(chunkPos, false);
+
+ if (!regionFile.chunkExists(chunkPos)) {
+ return null;
+ }
+
+ ChunkStatus status = regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
+
+ if (status != null) {
+ return status;
+ }
+
+ this.readChunkData(chunkPos);
+
+ return regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
+ }
+
+ public void updateChunkStatusOnDisk(ChunkCoordIntPair chunkPos, @Nullable NBTTagCompound compound) throws IOException {
+ RegionFile regionFile = this.getRegionFile(chunkPos, false);
+
+ regionFile.setStatus(chunkPos.x, chunkPos.z, ChunkRegionLoader.getStatus(compound));
}
+ // Paper end
// Spigot Start
boolean isOutsideOfRange(ChunkCoordIntPair chunkcoordintpair, boolean reducedRange) {
diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
index 2e14d8465..d610253b9 100644
index 2e14d8465..66c8b0307 100644
--- a/src/main/java/net/minecraft/server/RegionFile.java
+++ b/src/main/java/net/minecraft/server/RegionFile.java
@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
@ -193,28 +226,19 @@ index 2e14d8465..d610253b9 100644
+ final int location = this.getChunkLocation(new ChunkCoordIntPair(x, z));
+ return this.statuses[location];
+ }
+
+ public ChunkStatus getStatus(int x, int z, PlayerChunkMap playerChunkMap) throws IOException {
+ if (this.closed) {
+ // We've used an invalid region file.
+ throw new java.io.EOFException("RegionFile is closed");
+ }
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
+ int location = this.getChunkLocation(chunkPos);
+ ChunkStatus cached = this.statuses[location];
+ if (cached != null) {
+ return cached;
+ }
+
+ playerChunkMap.readChunkData(chunkPos); // This will set our status (yes it's disgusting)
+
+ return this.statuses[location];
+ }
+ // Paper end
+
public RegionFile(File file) throws IOException {
this.b = new RandomAccessFile(file, "rw");
this.file = file; // Spigot // Paper - We need this earlier
@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
return this.c[this.f(chunkcoordintpair)];
}
+ public final boolean chunkExists(ChunkCoordIntPair chunkPos) { return this.d(chunkPos); } // Paper - OBFHELPER
public boolean d(ChunkCoordIntPair chunkcoordintpair) {
return this.getOffset(chunkcoordintpair) != 0;
}
@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
this.writeInt(i); // Paper - Avoid 3 io write calls
}
@ -265,7 +289,7 @@ index 6f34d8aea..d2b328945 100644
printOversizedLog("ChunkTooLarge even after reduction. Trying in overzealous mode.", regionfile.file, chunkX, chunkZ);
// Eek, major fail. We have retry logic, so reduce threshholds and fall back
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index bb0f75f52..ece1a68c1 100644
index bb0f75f52..f01e8a87e 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 {
@ -284,8 +308,7 @@ index bb0f75f52..ece1a68c1 100644
+ }
try {
- return world.getChunkProvider().getChunkAtIfCachedImmediately(x, z) != null || world.getChunkProvider().playerChunkMap.chunkExists(new ChunkCoordIntPair(x, z)); // Paper
+ return world.getChunkProvider().playerChunkMap.getRegionFile(new ChunkCoordIntPair(x, z), false)
+ .getStatus(x, z, world.getChunkProvider().playerChunkMap) == ChunkStatus.FULL;
+ return world.getChunkProvider().playerChunkMap.getChunkStatusOnDisk(new ChunkCoordIntPair(x, z)) == ChunkStatus.FULL;
+ // Paper end
} catch (IOException ex) {
throw new RuntimeException(ex);
@ -295,32 +318,50 @@ index bb0f75f52..ece1a68c1 100644
public boolean loadChunk(int x, int z, boolean generate) {
org.spigotmc.AsyncCatcher.catchOp( "chunk load"); // Spigot
- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, generate || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true);
-
+ // Paper start - Optimize this method
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
- // If generate = false, but the chunk already exists, we will get this back.
- if (chunk instanceof ProtoChunkExtension) {
- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
- chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
- }
+ // Paper - Optimize this method
+ if (!generate) {
+ net.minecraft.server.RegionFile file = world.getChunkProvider().playerChunkMap.getRegionFileIfLoaded(new ChunkCoordIntPair(x, z));
+ if (file != null && file.getStatusIfCached(x, z) != ChunkStatus.FULL) {
+ return false;
+ IChunkAccess immediate = world.getChunkProvider().getChunkAtImmediately(x, z);
+ if (immediate != null) {
+ if (!(immediate instanceof ProtoChunkExtension) && !(immediate instanceof net.minecraft.server.Chunk)) {
+ return false; // not full status
+ }
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
+ world.getChunkAt(x, z); // make sure we're at ticket level 32 or lower
+ return true;
}
- if (chunk instanceof net.minecraft.server.Chunk) {
- world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
- return true;
+ if (!generate) {
+ net.minecraft.server.RegionFile file;
+ try {
+ file = world.getChunkProvider().playerChunkMap.getRegionFile(chunkPos, false);
+ } catch (IOException ex) {
+ throw new RuntimeException(ex);
+ }
+
+ ChunkStatus status = file.getStatusIfCached(x, z);
+ if (!file.chunkExists(chunkPos) || (status != null && status != ChunkStatus.FULL)) {
+ return false;
+ }
+
+ IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.EMPTY, true);
+ if (!(chunk instanceof ProtoChunkExtension) && !(chunk instanceof net.minecraft.server.Chunk)) {
+ return false;
+ }
+
+ // fall through to load
+ // we do this so we do not re-read the chunk data on disk
}
-
- return false;
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
+ world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
+ return true;
+ // Paper end
@ -334,31 +375,47 @@ index bb0f75f52..ece1a68c1 100644
- // copied from loadChunk()
- // this function is identical except we do not add a plugin ticket
- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, gen || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true);
-
+ // Note: Copied from loadChunk()
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
- // If generate = false, but the chunk already exists, we will get this back.
- if (chunk instanceof ProtoChunkExtension) {
- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
- chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
- }
-
+ IChunkAccess immediate = world.getChunkProvider().getChunkAtImmediately(x, z);
+ if (immediate != null) {
+ if (!(immediate instanceof ProtoChunkExtension) && !(immediate instanceof net.minecraft.server.Chunk)) {
+ return null; // not full status
+ }
+ return world.getChunkAt(x, z).bukkitChunk; // make sure we're at ticket level 32 or lower
}
- if (chunk instanceof net.minecraft.server.Chunk) {
- return ((net.minecraft.server.Chunk)chunk).bukkitChunk;
+ // Note: Copied from loadChunk()
+ if (!gen) {
+ net.minecraft.server.RegionFile file = world.getChunkProvider().playerChunkMap.getRegionFileIfLoaded(new ChunkCoordIntPair(x, z));
+ if (file != null && file.getStatusIfCached(x, z) != ChunkStatus.FULL) {
+ net.minecraft.server.RegionFile file;
+ try {
+ file = world.getChunkProvider().playerChunkMap.getRegionFile(chunkPos, false);
+ } catch (IOException ex) {
+ throw new RuntimeException(ex);
+ }
+
+ ChunkStatus status = file.getStatusIfCached(x, z);
+ if (!file.chunkExists(chunkPos) || (status != null && status != ChunkStatus.FULL)) {
+ return null;
+ }
+
+ IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.EMPTY, true);
+ if (!(chunk instanceof ProtoChunkExtension) && !(chunk instanceof net.minecraft.server.Chunk)) {
+ return null;
+ }
+
+ // fall through to load
+ // we do this so we do not re-read the chunk data on disk
+ // we load at empty so we don't double-load chunk data in this case
}
-
- return null;
+ return ((net.minecraft.server.Chunk)world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true)).bukkitChunk;
+ return world.getChunkAt(x, z).bukkitChunk;
}
@Override

4
Spigot-Server-Patches/Use-ChunkStatus-cache-when-saving-protochunks.patch
View file

@ -7,7 +7,7 @@ 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 e0798c1c8..f21961d3a 100644
index e2f8b18d9..7cb5438e4 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -0,0 +0,0 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
@ -17,7 +17,7 @@ index e0798c1c8..f21961d3a 100644
- 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);
+ ChunkStatus statusOnDisk = this.getChunkStatusOnDisk(chunkcoordintpair);
+ if (statusOnDisk != null && statusOnDisk.getType() == ChunkStatus.Type.LEVELCHUNK) {
+ // Paper end
return false;