7141632abf
While Velocity supports BungeeCord-style IP forwarding, it is not secure. Users have a lot of problems setting up firewalls or setting up plugins like IPWhitelist. Further, the BungeeCord IP forwarding protocol still retains essentially its original form, when there is brand new support for custom login plugin messages in 1.13. Velocity's modern IP forwarding uses an HMAC-SHA256 code to ensure authenticity of messages, is packed into a binary format that is smaller than BungeeCord's forwarding, and is integrated into the Minecraft login process by using the 1.13 login plugin message packet.
281 lines
12 KiB
Diff
281 lines
12 KiB
Diff
From 4b74d1d81eccd51be3808fa01847b44a306ac04b Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 2 Mar 2016 00:52:31 -0600
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Subject: [PATCH] Lighting Queue
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This provides option to queue lighting updates to ensure they do not cause the server lag
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diff --git a/src/main/java/co/aikar/timings/WorldTimingsHandler.java b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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index 145cb274b..eff9dcf54 100644
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--- a/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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+++ b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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@@ -50,6 +50,8 @@ public class WorldTimingsHandler {
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public final Timing worldSaveLevel;
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public final Timing chunkSaveData;
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+ public final Timing lightingQueueTimer;
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+
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public WorldTimingsHandler(World server) {
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String name = server.worldData.getName() +" - ";
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@@ -96,6 +98,8 @@ public class WorldTimingsHandler {
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tracker2 = Timings.ofSafe(name + "tracker stage 2");
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doTick = Timings.ofSafe(name + "doTick");
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tickEntities = Timings.ofSafe(name + "tickEntities");
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+
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+ lightingQueueTimer = Timings.ofSafe(name + "Lighting Queue");
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}
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public static Timing getTickList(WorldServer worldserver, String timingsType) {
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 2f17e5219..aa920c469 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -191,6 +191,13 @@ public class PaperConfig {
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return config.getString(path, config.getString(path));
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}
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+ public static int maxTickMsLostLightQueue;
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+ private static void lightQueue() {
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+ int badSetting = config.getInt("queue-light-updates-max-loss", 10);
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+ config.set("queue-light-updates-max-loss", null);
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+ maxTickMsLostLightQueue = getInt("settings.queue-light-updates-max-loss", badSetting);
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+ }
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+
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private static void timings() {
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boolean timings = getBoolean("timings.enabled", true);
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boolean verboseTimings = getBoolean("timings.verbose", true);
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 39d565db1..8f6f0288b 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -130,4 +130,12 @@ public class PaperWorldConfig {
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netherVoidTopDamage = getBoolean( "nether-ceiling-void-damage", false );
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log("Top of the nether void damage: " + netherVoidTopDamage);
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}
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+
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+ public boolean queueLightUpdates;
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+ private void queueLightUpdates() {
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+ queueLightUpdates = getBoolean("queue-light-updates", false);
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+ log("Lighting Queue enabled: " + queueLightUpdates);
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+ log("Warning: This feature may help reduce TPS loss from light, but comes at the cost of buggy light data");
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+ log("We are working to improve this feature.");
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index af181d4bd..6fa379e58 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -90,6 +90,7 @@ public class Chunk implements IChunkAccess {
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return removed;
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}
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}
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+ final PaperLightingQueue.LightingQueue lightingQueue = new PaperLightingQueue.LightingQueue(this);
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// Paper end
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public boolean areNeighborsLoaded(final int radius) {
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switch (radius) {
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@@ -279,7 +280,7 @@ public class Chunk implements IChunkAccess {
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private void g(boolean flag) {
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this.world.methodProfiler.a("recheckGaps");
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- if (this.world.areChunksLoaded(new BlockPosition(this.locX * 16 + 8, 0, this.locZ * 16 + 8), 16)) {
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+ if (this.areNeighborsLoaded(1)) { // Paper
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for (int i = 0; i < 16; ++i) {
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for (int j = 0; j < 16; ++j) {
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if (this.g[i + j * 16]) {
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@@ -330,7 +331,7 @@ public class Chunk implements IChunkAccess {
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}
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private void a(int i, int j, int k, int l) {
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- if (l > k && this.world.areChunksLoaded(new BlockPosition(i, 0, j), 16)) {
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+ if (l > k && this.areNeighborsLoaded(1)) { // Paper
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for (int i1 = k; i1 < l; ++i1) {
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this.world.c(EnumSkyBlock.SKY, new BlockPosition(i, i1, j));
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}
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@@ -530,6 +531,7 @@ public class Chunk implements IChunkAccess {
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if (flag1) {
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this.initLighting();
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} else {
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+ this.runOrQueueLightUpdate(() -> { // Paper - Queue light update
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int i1 = iblockdata.b(this.world, blockposition);
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int j1 = iblockdata1.b(this.world, blockposition);
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@@ -537,6 +539,7 @@ public class Chunk implements IChunkAccess {
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if (i1 != j1 && (i1 < j1 || this.getBrightness(EnumSkyBlock.SKY, blockposition) > 0 || this.getBrightness(EnumSkyBlock.BLOCK, blockposition) > 0)) {
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this.c(i, k);
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}
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+ }); // Paper
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}
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TileEntity tileentity;
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@@ -1374,6 +1377,16 @@ public class Chunk implements IChunkAccess {
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return this.D == 8;
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}
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+ // Paper start
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+ public void runOrQueueLightUpdate(Runnable runnable) {
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+ if (this.world.paperConfig.queueLightUpdates) {
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+ lightingQueue.add(runnable);
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+ } else {
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+ runnable.run();
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+ }
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+ }
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+ // Paper end
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+
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public static enum EnumTileEntityState {
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IMMEDIATE, QUEUED, CHECK;
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diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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index 31ed3e43a..0b03c6266 100644
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--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
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+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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@@ -314,6 +314,7 @@ public class ChunkProviderServer implements IChunkProvider {
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return false;
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}
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save = event.isSaveChunk();
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+ chunk.lightingQueue.processUnload(); // Paper
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// Update neighbor counts
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for (int x = -2; x < 3; x++) {
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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 d6ea4ae53..5086fe402 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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@@ -894,7 +894,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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protected void a(BooleanSupplier booleansupplier) {
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co.aikar.timings.TimingsManager.FULL_SERVER_TICK.startTiming(); // Paper
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this.slackActivityAccountant.tickStarted(); // Spigot
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- long i = SystemUtils.c();
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+ long i = SystemUtils.c(); long startTime = i; // Paper
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++this.ticks;
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if (this.S) {
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@@ -952,6 +952,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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this.methodProfiler.e();
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this.methodProfiler.e();
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org.spigotmc.WatchdogThread.tick(); // Spigot
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+ PaperLightingQueue.processQueue(startTime); // Paper
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this.slackActivityAccountant.tickEnded(l); // Spigot
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co.aikar.timings.TimingsManager.FULL_SERVER_TICK.stopTiming(); // Paper
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}
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diff --git a/src/main/java/net/minecraft/server/PaperLightingQueue.java b/src/main/java/net/minecraft/server/PaperLightingQueue.java
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new file mode 100644
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index 000000000..5fabc5b55
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--- /dev/null
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+++ b/src/main/java/net/minecraft/server/PaperLightingQueue.java
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@@ -0,0 +1,98 @@
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+package net.minecraft.server;
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+
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+import co.aikar.timings.Timing;
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+import com.destroystokyo.paper.PaperConfig;
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+import it.unimi.dsi.fastutil.objects.ObjectCollection;
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+
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+import java.util.ArrayDeque;
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+
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+class PaperLightingQueue {
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+ private static final long MAX_TIME = (long) (1000000 * (50 + PaperConfig.maxTickMsLostLightQueue));
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+
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+ static void processQueue(long curTime) {
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+ final long startTime = System.nanoTime();
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+ final long maxTickTime = MAX_TIME - (startTime - curTime);
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+
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+ if (maxTickTime <= 0) {
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+ return;
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+ }
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+
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+ START:
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+ for (World world : MinecraftServer.getServer().getWorlds()) {
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+ if (!world.paperConfig.queueLightUpdates) {
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+ continue;
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+ }
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+
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+ ObjectCollection<Chunk> loadedChunks = ((WorldServer) world).getChunkProviderServer().chunks.values();
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+ for (Chunk chunk : loadedChunks.toArray(new Chunk[0])) {
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+ if (chunk.lightingQueue.processQueue(startTime, maxTickTime)) {
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+ break START;
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+ }
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+ }
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+ }
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+ }
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+
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+ static class LightingQueue extends ArrayDeque<Runnable> {
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+ final private Chunk chunk;
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+
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+ LightingQueue(Chunk chunk) {
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+ super();
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+ this.chunk = chunk;
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+ }
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+
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+ /**
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+ * Processes the lighting queue for this chunk
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+ *
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+ * @param startTime If start Time is 0, we will not limit execution time
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+ * @param maxTickTime Maximum time to spend processing lighting updates
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+ * @return true to abort processing furthur lighting updates
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+ */
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+ private boolean processQueue(long startTime, long maxTickTime) {
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+ if (this.isEmpty()) {
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+ return false;
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+ }
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+ if (isOutOfTime(maxTickTime, startTime)) {
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+ return true;
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+ }
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+ try (Timing ignored = chunk.world.timings.lightingQueueTimer.startTiming()) {
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+ Runnable lightUpdate;
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+ while ((lightUpdate = this.poll()) != null) {
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+ lightUpdate.run();
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+ if (isOutOfTime(maxTickTime, startTime)) {
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+ return true;
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+ }
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+ }
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+ }
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+
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+ return false;
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+ }
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+
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+ /**
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+ * Flushes lighting updates to unload the chunk
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+ */
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+ void processUnload() {
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+ if (!chunk.world.paperConfig.queueLightUpdates) {
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+ return;
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+ }
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+ processQueue(0, 0); // No timeout
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+
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+ final int radius = 1;
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+ for (int x = chunk.locX - radius; x <= chunk.locX + radius; ++x) {
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+ for (int z = chunk.locZ - radius; z <= chunk.locZ + radius; ++z) {
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+ if (x == chunk.locX && z == chunk.locZ) {
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+ continue;
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+ }
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+
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+ Chunk neighbor = chunk.world.getChunkIfLoaded(x, z);
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+ if (neighbor != null) {
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+ neighbor.lightingQueue.processQueue(0, 0); // No timeout
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+ }
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+ }
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+ }
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+ }
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+ }
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+
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+ private static boolean isOutOfTime(long maxTickTime, long startTime) {
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+ return startTime > 0 && System.nanoTime() - startTime > maxTickTime;
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 499d64ea2..e06da6bef 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -335,7 +335,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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if (iblockdata2.b(this, blockposition) != iblockdata1.b(this, blockposition) || iblockdata2.e() != iblockdata1.e()) {
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this.methodProfiler.a("checkLight");
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- this.r(blockposition);
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+ chunk.runOrQueueLightUpdate(() -> this.r(blockposition)); // Paper - Queue light update
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this.methodProfiler.e();
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}
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--
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2.19.1
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