Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-15 02:50:09 +01:00
897dd2c840
This commit doesn't do much on its own, but adds a new Java Cleaner API that lets us hook into Garbage Collector events to reclaim pooled objects and return them to the pool. Adds framework for Network Packets to know when a packet has finished dispatching to get an idea when a packet is done sending to players. Rewrites PooledObjects impl to properly respect max pool size and remove almost all risk of contention. Bumps the Paper Async Task Queue to use 2 threads, and properly shuts it down on shutdown.
263 Zeilen
11 KiB
Diff
263 Zeilen
11 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Minecrell <minecrell@minecrell.net>
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Date: Wed, 11 Oct 2017 15:56:26 +0200
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Subject: [PATCH] Implement extended PaperServerListPingEvent
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diff --git a/src/main/java/com/destroystokyo/paper/network/PaperServerListPingEventImpl.java b/src/main/java/com/destroystokyo/paper/network/PaperServerListPingEventImpl.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..c1a8e295b66501e0580bcfc041bca51e69109062
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/network/PaperServerListPingEventImpl.java
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@@ -0,0 +1,31 @@
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+package com.destroystokyo.paper.network;
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+
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+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
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+import net.minecraft.server.EntityPlayer;
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+import net.minecraft.server.MinecraftServer;
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+import org.bukkit.entity.Player;
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+import org.bukkit.util.CachedServerIcon;
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+
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+import javax.annotation.Nullable;
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+
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+class PaperServerListPingEventImpl extends PaperServerListPingEvent {
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+
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+ private final MinecraftServer server;
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+
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+ PaperServerListPingEventImpl(MinecraftServer server, StatusClient client, int protocolVersion, @Nullable CachedServerIcon icon) {
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+ super(client, server.getMotd(), server.getPlayerCount(), server.getMaxPlayers(),
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+ server.getServerModName() + ' ' + server.getVersion(), protocolVersion, icon);
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+ this.server = server;
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+ }
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+
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+ @Override
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+ protected final Object[] getOnlinePlayers() {
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+ return this.server.getPlayerList().players.toArray();
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+ }
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+
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+ @Override
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+ protected final Player getBukkitPlayer(Object player) {
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+ return ((EntityPlayer) player).getBukkitEntity();
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+ }
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+
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+}
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diff --git a/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java b/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..a2a409e635dde08f7c53e67164b967a000511e94
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java
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@@ -0,0 +1,11 @@
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+package com.destroystokyo.paper.network;
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+
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+import net.minecraft.server.NetworkManager;
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+
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+class PaperStatusClient extends PaperNetworkClient implements StatusClient {
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+
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+ PaperStatusClient(NetworkManager networkManager) {
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+ super(networkManager);
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+ }
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+
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+}
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diff --git a/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..a85466bc7e0a8aa54b9eff14077fe6c992ae2902
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
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@@ -0,0 +1,112 @@
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+package com.destroystokyo.paper.network;
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+
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+import com.destroystokyo.paper.profile.CraftPlayerProfile;
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+import com.destroystokyo.paper.profile.PlayerProfile;
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+import com.google.common.base.MoreObjects;
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+import com.google.common.base.Strings;
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+import com.mojang.authlib.GameProfile;
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+import net.minecraft.server.ChatComponentText;
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+import net.minecraft.server.MinecraftServer;
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+import net.minecraft.server.NetworkManager;
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+import net.minecraft.server.PacketStatusOutServerInfo;
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+import net.minecraft.server.ServerPing;
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+
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+import java.util.List;
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+import java.util.UUID;
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+
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+import javax.annotation.Nonnull;
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+
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+public final class StandardPaperServerListPingEventImpl extends PaperServerListPingEventImpl {
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+
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+ private static final GameProfile[] EMPTY_PROFILES = new GameProfile[0];
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+ private static final UUID FAKE_UUID = new UUID(0, 0);
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+
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+ private GameProfile[] originalSample;
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+
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+ private StandardPaperServerListPingEventImpl(MinecraftServer server, NetworkManager networkManager, ServerPing ping) {
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+ super(server, new PaperStatusClient(networkManager), ping.getServerData() != null ? ping.getServerData().getProtocolVersion() : -1, server.server.getServerIcon());
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+ this.originalSample = ping.getPlayers() == null ? null : ping.getPlayers().getSample(); // GH-1473 - pre-tick race condition NPE
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+ }
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+
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+ @Nonnull
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+ @Override
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+ public List<PlayerProfile> getPlayerSample() {
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+ List<PlayerProfile> sample = super.getPlayerSample();
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+
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+ if (this.originalSample != null) {
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+ for (GameProfile profile : this.originalSample) {
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+ sample.add(CraftPlayerProfile.asBukkitCopy(profile));
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+ }
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+ this.originalSample = null;
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+ }
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+
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+ return sample;
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+ }
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+
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+ private GameProfile[] getPlayerSampleHandle() {
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+ if (this.originalSample != null) {
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+ return this.originalSample;
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+ }
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+
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+ List<PlayerProfile> entries = super.getPlayerSample();
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+ if (entries.isEmpty()) {
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+ return EMPTY_PROFILES;
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+ }
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+
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+ GameProfile[] profiles = new GameProfile[entries.size()];
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+ for (int i = 0; i < profiles.length; i++) {
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+ /*
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+ * Avoid null UUIDs/names since that will make the response invalid
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+ * on the client.
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+ * Instead, fall back to a fake/empty UUID and an empty string as name.
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+ * This can be used to create custom lines in the player list that do not
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+ * refer to a specific player.
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+ */
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+
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+ PlayerProfile profile = entries.get(i);
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+ if (profile.getId() != null && profile.getName() != null) {
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+ profiles[i] = CraftPlayerProfile.asAuthlib(profile);
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+ } else {
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+ profiles[i] = new GameProfile(MoreObjects.firstNonNull(profile.getId(), FAKE_UUID), Strings.nullToEmpty(profile.getName()));
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+ }
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+ }
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+
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+ return profiles;
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+ }
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+
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+ @SuppressWarnings("deprecation")
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+ public static void processRequest(MinecraftServer server, NetworkManager networkManager) {
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+ StandardPaperServerListPingEventImpl event = new StandardPaperServerListPingEventImpl(server, networkManager, server.getServerPing());
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+ server.server.getPluginManager().callEvent(event);
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+
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+ // Close connection immediately if event is cancelled
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+ if (event.isCancelled()) {
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+ networkManager.close(null);
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+ return;
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+ }
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+
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+ // Setup response
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+ ServerPing ping = new ServerPing();
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+
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+ // Description
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+ ping.setMOTD(new ChatComponentText(event.getMotd()));
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+
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+ // Players
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+ if (!event.shouldHidePlayers()) {
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+ ping.setPlayerSample(new ServerPing.ServerPingPlayerSample(event.getMaxPlayers(), event.getNumPlayers()));
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+ ping.getPlayers().setSample(event.getPlayerSampleHandle());
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+ }
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+
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+ // Version
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+ ping.setServerInfo(new ServerPing.ServerData(event.getVersion(), event.getProtocolVersion()));
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+
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+ // Favicon
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+ if (event.getServerIcon() != null) {
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+ ping.setFavicon(event.getServerIcon().getData());
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+ }
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+
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+ // Send response
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+ networkManager.sendPacket(new PacketStatusOutServerInfo(ping));
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+ }
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+
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+}
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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 4a513aaea587414cf6abc1c136e52420d59688d8..d1667eba3398efecc8913c2778931030a90d6195 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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@@ -1,6 +1,9 @@
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package net.minecraft.server;
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import com.google.common.base.Splitter;
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+import co.aikar.timings.Timings;
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+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
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+import com.google.common.base.Stopwatch;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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import com.google.gson.JsonElement;
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@@ -1095,7 +1098,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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if (i - this.Z >= 5000000000L) {
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this.Z = i;
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this.serverPing.setPlayerSample(new ServerPing.ServerPingPlayerSample(this.getMaxPlayers(), this.getPlayerCount()));
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- GameProfile[] agameprofile = new GameProfile[Math.min(this.getPlayerCount(), 12)];
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+ GameProfile[] agameprofile = new GameProfile[Math.min(this.getPlayerCount(), org.spigotmc.SpigotConfig.playerSample)]; // Paper
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int j = MathHelper.nextInt(this.q, 0, this.getPlayerCount() - agameprofile.length);
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for (int k = 0; k < agameprofile.length; ++k) {
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diff --git a/src/main/java/net/minecraft/server/PacketStatusListener.java b/src/main/java/net/minecraft/server/PacketStatusListener.java
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index 658ea609cb4927b29a3d5303006f2adf2847e06b..4bb21c48bd50353370ec3c3546a00a5d20e4b9d8 100644
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--- a/src/main/java/net/minecraft/server/PacketStatusListener.java
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+++ b/src/main/java/net/minecraft/server/PacketStatusListener.java
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@@ -37,6 +37,8 @@ public class PacketStatusListener implements PacketStatusInListener {
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this.networkManager.close(PacketStatusListener.a);
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} else {
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this.d = true;
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+ // Paper start - Replace everything
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+ /*
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// CraftBukkit start
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// this.networkManager.sendPacket(new PacketStatusOutServerInfo(this.minecraftServer.getServerPing()));
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final Object[] players = minecraftServer.getPlayerList().players.toArray();
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@@ -132,6 +134,9 @@ public class PacketStatusListener implements PacketStatusInListener {
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ping.setServerInfo(new ServerPing.ServerData(minecraftServer.getServerModName() + " " + minecraftServer.getVersion(), version));
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this.networkManager.sendPacket(new PacketStatusOutServerInfo(ping));
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+ */
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+ com.destroystokyo.paper.network.StandardPaperServerListPingEventImpl.processRequest(this.minecraftServer, this.networkManager);
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+ // Paper end
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}
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// CraftBukkit end
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}
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diff --git a/src/main/java/net/minecraft/server/ServerPing.java b/src/main/java/net/minecraft/server/ServerPing.java
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index aa125a52dcdf4f137cfe17c5dc808b17d5e9de0b..ea52e89bd965afbd74f15b0e2974657319c28e4a 100644
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--- a/src/main/java/net/minecraft/server/ServerPing.java
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+++ b/src/main/java/net/minecraft/server/ServerPing.java
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@@ -29,6 +29,7 @@ public class ServerPing {
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this.a = ichatbasecomponent;
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}
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+ public ServerPingPlayerSample getPlayers() { return b(); } // Paper - OBFHELPER
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public ServerPing.ServerPingPlayerSample b() {
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return this.b;
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}
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@@ -160,10 +161,12 @@ public class ServerPing {
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return this.b;
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}
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+ public GameProfile[] getSample() { return c(); } // Paper - OBFHELPER
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public GameProfile[] c() {
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return this.c;
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}
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+ public void setSample(GameProfile[] sample) { a(sample); } // Paper - OBFHELPER
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public void a(GameProfile[] agameprofile) {
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this.c = agameprofile;
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}
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diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
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index 6d77bbc5aa98ec7c3977b1d36b13c96cc6582e01..1cf214eaca80feae283f6524605976022f856116 100644
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--- a/src/main/java/org/spigotmc/SpigotConfig.java
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+++ b/src/main/java/org/spigotmc/SpigotConfig.java
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@@ -285,7 +285,7 @@ public class SpigotConfig
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public static int playerSample;
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private static void playerSample()
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{
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- playerSample = getInt( "settings.sample-count", 12 );
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+ playerSample = Math.max( getInt( "settings.sample-count", 12 ), 0 ); // Paper - Avoid negative counts
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Bukkit.getLogger().log( Level.INFO, "Server Ping Player Sample Count: {0}", playerSample ); // Paper - Use logger
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}
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