PaperMC/patches/server/0957-Fix-concurrenct-access-to-lookups-field-in-RegistryO.patch
Bjarne Koll 2873869bb1
Drop manual isEditable copy in CraftSign
Signs no longer have a specific isEdiable state, the entire API in this
regard needs updating/deprecation. The boolean field is completely gone,
replaced by a uuid (which will need a new setEditingPlayer(UUID) method
on the Sign interface), and the current upstream implementation of
setEdiable simply flips the is_waxed state.

This patch is hence not needed as it neither allows editing (which will
be redone in a later patch) nor is required to copy the is_waxed boolean
flag as it lives in the signs compound tag and is covered by applyTo.
2023-06-08 11:35:39 +02:00

30 lines
1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 15 May 2023 00:20:59 -0700
Subject: [PATCH] Fix concurrenct access to lookups field in RegistryOps
The concurrent access occurs on the Netty IO threads when
serializing packets. Thus, it seems it was an oversight of
the implementator of this function as there are typically
more than one Netty IO thread.
Fixes https://github.com/PaperMC/Folia/issues/11
diff --git a/src/main/java/net/minecraft/resources/RegistryOps.java b/src/main/java/net/minecraft/resources/RegistryOps.java
index 7709eeac907c4895a264cec0a3d453aa8b194c18..29182c49b30110809f786ae99b47fcc67976562f 100644
--- a/src/main/java/net/minecraft/resources/RegistryOps.java
+++ b/src/main/java/net/minecraft/resources/RegistryOps.java
@@ -19,11 +19,11 @@ public class RegistryOps<T> extends DelegatingOps<T> {
private static RegistryOps.RegistryInfoLookup memoizeLookup(final RegistryOps.RegistryInfoLookup registryInfoGetter) {
return new RegistryOps.RegistryInfoLookup() {
- private final Map<ResourceKey<? extends Registry<?>>, Optional<? extends RegistryOps.RegistryInfo<?>>> lookups = new HashMap<>();
+ private final Map<ResourceKey<? extends Registry<?>>, Optional<? extends RegistryOps.RegistryInfo<?>>> lookups = new java.util.concurrent.ConcurrentHashMap<>(); // Paper - fix concurrent access to lookups field
@Override
public <T> Optional<RegistryOps.RegistryInfo<T>> lookup(ResourceKey<? extends Registry<? extends T>> registryRef) {
- return this.lookups.computeIfAbsent(registryRef, registryInfoGetter::lookup);
+ return (Optional<RegistryOps.RegistryInfo<T>>)this.lookups.computeIfAbsent(registryRef, registryInfoGetter::lookup); // Paper - fix concurrent access to lookups field
}
};
}