Paper/Spigot-Server-Patches/0028-Lighting-Queue.patch
Aikar 459987d69f
More improvements to activation range, improve turtles
improved the water code so that immunity wont trigger if the entity
has the water pathfinder system active, so this improves support
for all entities that know how to behave in water.

Merged 2 EAR patches together, and removed an MCUtil method that
doesnt have a purpose anymore
2018-10-04 23:18:46 -04:00

325 lines
13 KiB
Diff

From 6c6649b7448fdcb1a1d3235b41294da22a232603 Mon Sep 17 00:00:00 2001
From: Byteflux <byte@byteflux.net>
Date: Wed, 2 Mar 2016 00:52:31 -0600
Subject: [PATCH] Lighting Queue
This provides option to queue lighting updates to ensure they do not cause the server lag
diff --git a/src/main/java/co/aikar/timings/WorldTimingsHandler.java b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
index 145cb274b0..eff9dcf54f 100644
--- a/src/main/java/co/aikar/timings/WorldTimingsHandler.java
+++ b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
@@ -50,6 +50,8 @@ public class WorldTimingsHandler {
public final Timing worldSaveLevel;
public final Timing chunkSaveData;
+ public final Timing lightingQueueTimer;
+
public WorldTimingsHandler(World server) {
String name = server.worldData.getName() +" - ";
@@ -96,6 +98,8 @@ public class WorldTimingsHandler {
tracker2 = Timings.ofSafe(name + "tracker stage 2");
doTick = Timings.ofSafe(name + "doTick");
tickEntities = Timings.ofSafe(name + "tickEntities");
+
+ lightingQueueTimer = Timings.ofSafe(name + "Lighting Queue");
}
public static Timing getTickList(WorldServer worldserver, String timingsType) {
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 6ab2eaa169..27775476f9 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -184,6 +184,11 @@ public class PaperConfig {
return config.getString(path, config.getString(path));
}
+ public static int maxTickMsLostLightQueue;
+ private static void lightQueue() {
+ maxTickMsLostLightQueue = getInt("queue-light-updates-max-loss", 10);
+ }
+
private static void timings() {
boolean timings = getBoolean("timings.enabled", true);
boolean verboseTimings = getBoolean("timings.verbose", true);
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 39d565db1f..8f6f0288be 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -130,4 +130,12 @@ public class PaperWorldConfig {
netherVoidTopDamage = getBoolean( "nether-ceiling-void-damage", false );
log("Top of the nether void damage: " + netherVoidTopDamage);
}
+
+ public boolean queueLightUpdates;
+ private void queueLightUpdates() {
+ queueLightUpdates = getBoolean("queue-light-updates", false);
+ log("Lighting Queue enabled: " + queueLightUpdates);
+ log("Warning: This feature may help reduce TPS loss from light, but comes at the cost of buggy light data");
+ log("We are working to improve this feature.");
+ }
}
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index af181d4bd7..4ec5fe739f 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -38,7 +38,7 @@ public class Chunk implements IChunkAccess {
public final Map<HeightMap.Type, HeightMap> heightMap;
public final int locX;
public final int locZ;
- private boolean l;
+ private boolean l; public boolean needsGapCheck() { return l; } // Paper - OBFHELPER
private final ChunkConverter m;
public final Map<BlockPosition, TileEntity> tileEntities;
public final List<Entity>[] entitySlices; // Spigot
@@ -90,6 +90,7 @@ public class Chunk implements IChunkAccess {
return removed;
}
}
+ final PaperLightingQueue.LightingQueue lightingQueue = new PaperLightingQueue.LightingQueue(this);
// Paper end
public boolean areNeighborsLoaded(final int radius) {
switch (radius) {
@@ -277,9 +278,10 @@ public class Chunk implements IChunkAccess {
this.l = true;
}
+ private void recheckGaps(boolean flag) { g(flag); } // Paper - OBFHELPER
private void g(boolean flag) {
this.world.methodProfiler.a("recheckGaps");
- if (this.world.areChunksLoaded(new BlockPosition(this.locX * 16 + 8, 0, this.locZ * 16 + 8), 16)) {
+ if (this.areNeighborsLoaded(1)) { // Paper
for (int i = 0; i < 16; ++i) {
for (int j = 0; j < 16; ++j) {
if (this.g[i + j * 16]) {
@@ -330,7 +332,7 @@ public class Chunk implements IChunkAccess {
}
private void a(int i, int j, int k, int l) {
- if (l > k && this.world.areChunksLoaded(new BlockPosition(i, 0, j), 16)) {
+ if (l > k && this.areNeighborsLoaded(1)) { // Paper
for (int i1 = k; i1 < l; ++i1) {
this.world.c(EnumSkyBlock.SKY, new BlockPosition(i, i1, j));
}
@@ -530,6 +532,7 @@ public class Chunk implements IChunkAccess {
if (flag1) {
this.initLighting();
} else {
+ this.runOrQueueLightUpdate(() -> { // Paper - Queue light update
int i1 = iblockdata.b(this.world, blockposition);
int j1 = iblockdata1.b(this.world, blockposition);
@@ -537,6 +540,7 @@ public class Chunk implements IChunkAccess {
if (i1 != j1 && (i1 < j1 || this.getBrightness(EnumSkyBlock.SKY, blockposition) > 0 || this.getBrightness(EnumSkyBlock.BLOCK, blockposition) > 0)) {
this.c(i, k);
}
+ }); // Paper
}
TileEntity tileentity;
@@ -1011,10 +1015,16 @@ public class Chunk implements IChunkAccess {
return false;
}
- public void d(boolean flag) {
- if (this.l && this.world.worldProvider.g() && !flag) {
- this.g(this.world.isClientSide);
+ // Paper start
+ private boolean shouldRecheckGaps = false;
+ public void doGapCheck() {
+ if (shouldRecheckGaps) {
+ this.recheckGaps(false);
+ shouldRecheckGaps = false;
}
+ }
+ public void d(boolean flag) {
+ shouldRecheckGaps = this.needsGapCheck() && this.world.worldProvider.hasNaturalLight() && !flag; // Paper
this.u = true;
@@ -1374,6 +1384,16 @@ public class Chunk implements IChunkAccess {
return this.D == 8;
}
+ // Paper start
+ public void runOrQueueLightUpdate(Runnable runnable) {
+ if (this.world.paperConfig.queueLightUpdates) {
+ lightingQueue.add(runnable);
+ } else {
+ runnable.run();
+ }
+ }
+ // Paper end
+
public static enum EnumTileEntityState {
IMMEDIATE, QUEUED, CHECK;
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 31ed3e43a5..0b03c6266a 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -314,6 +314,7 @@ public class ChunkProviderServer implements IChunkProvider {
return false;
}
save = event.isSaveChunk();
+ chunk.lightingQueue.processUnload(); // Paper
// Update neighbor counts
for (int x = -2; x < 3; x++) {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index d6ea4ae532..5086fe4027 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -894,7 +894,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
protected void a(BooleanSupplier booleansupplier) {
co.aikar.timings.TimingsManager.FULL_SERVER_TICK.startTiming(); // Paper
this.slackActivityAccountant.tickStarted(); // Spigot
- long i = SystemUtils.c();
+ long i = SystemUtils.c(); long startTime = i; // Paper
++this.ticks;
if (this.S) {
@@ -952,6 +952,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
this.methodProfiler.e();
this.methodProfiler.e();
org.spigotmc.WatchdogThread.tick(); // Spigot
+ PaperLightingQueue.processQueue(startTime); // Paper
this.slackActivityAccountant.tickEnded(l); // Spigot
co.aikar.timings.TimingsManager.FULL_SERVER_TICK.stopTiming(); // Paper
}
diff --git a/src/main/java/net/minecraft/server/PaperLightingQueue.java b/src/main/java/net/minecraft/server/PaperLightingQueue.java
new file mode 100644
index 0000000000..d207266db3
--- /dev/null
+++ b/src/main/java/net/minecraft/server/PaperLightingQueue.java
@@ -0,0 +1,99 @@
+package net.minecraft.server;
+
+import co.aikar.timings.Timing;
+import com.destroystokyo.paper.PaperConfig;
+import it.unimi.dsi.fastutil.objects.ObjectCollection;
+
+import java.util.ArrayDeque;
+
+class PaperLightingQueue {
+ private static final long MAX_TIME = (long) (1000000 * (50 + PaperConfig.maxTickMsLostLightQueue));
+
+ static void processQueue(long curTime) {
+ final long startTime = System.nanoTime();
+ final long maxTickTime = MAX_TIME - (startTime - curTime);
+
+ if (maxTickTime <= 0) {
+ return;
+ }
+
+ START:
+ for (World world : MinecraftServer.getServer().getWorlds()) {
+ if (!world.paperConfig.queueLightUpdates) {
+ continue;
+ }
+
+ ObjectCollection<Chunk> loadedChunks = ((WorldServer) world).getChunkProviderServer().chunks.values();
+ for (Chunk chunk : loadedChunks.toArray(new Chunk[0])) {
+ if (chunk.lightingQueue.processQueue(startTime, maxTickTime)) {
+ break START;
+ }
+ chunk.doGapCheck();
+ }
+ }
+ }
+
+ static class LightingQueue extends ArrayDeque<Runnable> {
+ final private Chunk chunk;
+
+ LightingQueue(Chunk chunk) {
+ super();
+ this.chunk = chunk;
+ }
+
+ /**
+ * Processes the lighting queue for this chunk
+ *
+ * @param startTime If start Time is 0, we will not limit execution time
+ * @param maxTickTime Maximum time to spend processing lighting updates
+ * @return true to abort processing furthur lighting updates
+ */
+ private boolean processQueue(long startTime, long maxTickTime) {
+ if (this.isEmpty()) {
+ return false;
+ }
+ if (isOutOfTime(maxTickTime, startTime)) {
+ return true;
+ }
+ try (Timing ignored = chunk.world.timings.lightingQueueTimer.startTiming()) {
+ Runnable lightUpdate;
+ while ((lightUpdate = this.poll()) != null) {
+ lightUpdate.run();
+ if (isOutOfTime(maxTickTime, startTime)) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Flushes lighting updates to unload the chunk
+ */
+ void processUnload() {
+ if (!chunk.world.paperConfig.queueLightUpdates) {
+ return;
+ }
+ processQueue(0, 0); // No timeout
+
+ final int radius = 1;
+ for (int x = chunk.locX - radius; x <= chunk.locX + radius; ++x) {
+ for (int z = chunk.locZ - radius; z <= chunk.locZ + radius; ++z) {
+ if (x == chunk.locX && z == chunk.locZ) {
+ continue;
+ }
+
+ Chunk neighbor = chunk.world.getChunkIfLoaded(x, z);
+ if (neighbor != null) {
+ neighbor.lightingQueue.processQueue(0, 0); // No timeout
+ }
+ }
+ }
+ }
+ }
+
+ private static boolean isOutOfTime(long maxTickTime, long startTime) {
+ return startTime > 0 && System.nanoTime() - startTime > maxTickTime;
+ }
+}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 499d64ea2c..e06da6bef9 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -335,7 +335,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
if (iblockdata2.b(this, blockposition) != iblockdata1.b(this, blockposition) || iblockdata2.e() != iblockdata1.e()) {
this.methodProfiler.a("checkLight");
- this.r(blockposition);
+ chunk.runOrQueueLightUpdate(() -> this.r(blockposition)); // Paper - Queue light update
this.methodProfiler.e();
}
diff --git a/src/main/java/net/minecraft/server/WorldProvider.java b/src/main/java/net/minecraft/server/WorldProvider.java
index 517b1e7124..53ce7d5e11 100644
--- a/src/main/java/net/minecraft/server/WorldProvider.java
+++ b/src/main/java/net/minecraft/server/WorldProvider.java
@@ -7,7 +7,7 @@ public abstract class WorldProvider {
protected World b;
protected boolean c;
protected boolean d;
- protected boolean e;
+ protected boolean e; public boolean hasNaturalLight() { return e; } // Paper - OBFHELPER
protected final float[] f = new float[16];
private final float[] g = new float[4];
--
2.19.0