PaperMC/patches/server/0731-Added-byte-array-serialization-deserialization-for-P.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

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1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nex <nex@bits.team>
Date: Thu, 24 Feb 2022 16:28:07 +0100
Subject: [PATCH] Added byte array serialization/deserialization for
PersistentDataContainers
diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
index 984e988a47aa55a3fd92198e379d0f92f511daef..5a4e7e7150b7c137b077e0b393f17ed35b5aec34 100644
--- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
+++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
@@ -184,4 +184,27 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
this.customDataTags.clear();
}
// Paper end
+
+ // Paper start - byte array serialization
+ @Override
+ public byte[] serializeToBytes() throws java.io.IOException {
+ final net.minecraft.nbt.CompoundTag root = this.toTagCompound();
+ final java.io.ByteArrayOutputStream byteArrayOutput = new java.io.ByteArrayOutputStream();
+ try (final java.io.DataOutputStream dataOutput = new java.io.DataOutputStream(byteArrayOutput)) {
+ net.minecraft.nbt.NbtIo.write(root, dataOutput);
+ return byteArrayOutput.toByteArray();
+ }
+ }
+
+ @Override
+ public void readFromBytes(final byte[] bytes, final boolean clear) throws java.io.IOException {
+ if (clear) {
+ this.clear();
+ }
+ try (final java.io.DataInputStream dataInput = new java.io.DataInputStream(new java.io.ByteArrayInputStream(bytes))) {
+ final net.minecraft.nbt.CompoundTag compound = net.minecraft.nbt.NbtIo.read(dataInput);
+ this.putAll(compound);
+ }
+ }
+ // Paper end - byte array serialization
}