Paper/patches/server/0444-Fix-bell-block-entity-memory-leak.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

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1.9 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: giacomo <32515303+giacomozama@users.noreply.github.com>
Date: Sat, 10 Oct 2020 12:15:33 +0200
Subject: [PATCH] Fix bell block entity memory leak
BellBlockEntity has a list of entities (entitiesAtRing) that was not being cleared at the right time, causing leaks whenever a bell would be rung near a crowd of entities.
diff --git a/src/main/java/net/minecraft/world/level/block/entity/BellBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BellBlockEntity.java
index 30e9d4b20005dc6d20baf578f2ae958bdfcea02a..d21f7e9712ac2d9088ce19d415e4ba7863d8cebf 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/BellBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/BellBlockEntity.java
@@ -63,6 +63,11 @@ public class BellBlockEntity extends BlockEntity {
if (blockEntity.ticks >= 50) {
blockEntity.shaking = false;
+ // Paper start - Fix bell block entity memory leak
+ if (!blockEntity.resonating) {
+ blockEntity.nearbyEntities.clear();
+ }
+ // Paper end - Fix bell block entity memory leak
blockEntity.ticks = 0;
}
@@ -76,6 +81,7 @@ public class BellBlockEntity extends BlockEntity {
++blockEntity.resonationTicks;
} else {
bellEffect.run(world, pos, blockEntity.nearbyEntities);
+ blockEntity.nearbyEntities.clear(); // Paper - Fix bell block entity memory leak
blockEntity.resonating = false;
}
}
@@ -125,6 +131,7 @@ public class BellBlockEntity extends BlockEntity {
}
}
+ this.nearbyEntities.removeIf(e -> !e.isAlive()); // Paper - Fix bell block entity memory leak
}
private static boolean areRaidersNearby(BlockPos pos, List<LivingEntity> hearingEntities) {