49 lines
2.8 KiB
Diff
49 lines
2.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Tue, 22 Mar 2022 12:44:30 -0700
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Subject: [PATCH] Throw exception on world create while being ticked
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There are no plans to support creating worlds while worlds are
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being ticked themselvess.
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 869e0b6c8588d751a9b38b713119f888778d3387..5a642dc7cd2fed59c3e5b6ff4ac9ea2f11b401da 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -294,6 +294,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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public volatile Thread shutdownThread; // Paper
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public volatile boolean abnormalExit = false; // Paper
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+ public boolean isIteratingOverLevels = false; // Paper
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public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
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AtomicReference<S> atomicreference = new AtomicReference();
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@@ -1525,6 +1526,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// Paper end
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MinecraftTimings.timeUpdateTimer.stopTiming(); // Spigot // Paper
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+ this.isIteratingOverLevels = true; // Paper
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while (iterator.hasNext()) {
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ServerLevel worldserver = (ServerLevel) iterator.next();
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worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper
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@@ -1572,6 +1574,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.profiler.pop();
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worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
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}
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+ this.isIteratingOverLevels = false; // Paper
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this.profiler.popPush("connection");
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MinecraftTimings.connectionTimer.startTiming(); // Spigot
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 88eac456dbcd53484109692d9aa898e174bff145..e161d79ee33a4d1e6bd8182d4e8acefeb4e0ae6d 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -1129,6 +1129,7 @@ public final class CraftServer implements Server {
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@Override
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public World createWorld(WorldCreator creator) {
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Preconditions.checkState(!console.levels.isEmpty(), "Cannot create additional worlds on STARTUP");
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+ Preconditions.checkState(!this.console.isIteratingOverLevels, "Cannot create a world while worlds are being ticked"); // Paper
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Validate.notNull(creator, "Creator may not be null");
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String name = creator.name();
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