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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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6
patches/server/0328-Prevent-Double-PlayerChunkMap-adds-crashing-server.patch
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@ -25,10 +25,10 @@ index 5f85d7f7ec57fc1b0375e62a8e8e3e8783f34193..396310a51480cf0d1ea4c0959d3f8e4e
EntityType<?> entitytypes = entity.getType();
int i = entitytypes.clientTrackingRange() * 16;
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index ecb9f6f0c9b24313b9e55b3a4c4f4bba40bc8fb3..0995a3a274df988a5c63c813de8213019a7c47c4 100644
index af3adf1bf771c2327b2972a4f9db9df4c4775f1a..161b556e5c5f3719b5623e71876a2250abc7f391 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2202,7 +2202,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
@@ -2207,7 +2207,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
public void onTrackingStart(Entity entity) {
org.spigotmc.AsyncCatcher.catchOp("entity register"); // Spigot
@ -37,7 +37,7 @@ index ecb9f6f0c9b24313b9e55b3a4c4f4bba40bc8fb3..0995a3a274df988a5c63c813de821301
if (entity instanceof ServerPlayer entityplayer) {
ServerLevel.this.players.add(entityplayer);
ServerLevel.this.updateSleepingPlayerList();
@@ -2232,6 +2232,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
@@ -2237,6 +2237,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
entity.updateDynamicGameEventListener(DynamicGameEventListener::add);
entity.inWorld = true; // CraftBukkit - Mark entity as in world
entity.valid = true; // CraftBukkit