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Rework async chunk api implementation

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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.
This commit is contained in:
Spottedleaf 2024-11-18 22:34:32 -08:00
parent de6173b061
commit 8c5b837e05
720 changed files with 978 additions and 1034 deletions
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4
patches/server/0301-Optimise-EntityGetter-getPlayerByUUID.patch
View file

@ -6,10 +6,10 @@ Subject: [PATCH] Optimise EntityGetter#getPlayerByUUID
Use the PlayerList map instead of iterating over all players
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 91e462544b82e0fe41851fa0fa3f6d6f08ac490d..800dd7338d77289b7d0e6e126342eaea184d3e43 100644
index ddff9f9f5322f62286f32161888e1b6a160fddfd..32117fe89ca946658a7d292b4a470736a09bfa62 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -331,6 +331,15 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
@@ -336,6 +336,15 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
}
// Paper end