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f37381ea8a
Paper/Spigot-Server-Patches/0357-Fire-event-on-GS4-query.patch
Aikar f37381ea8a
Optimize Network Manager to not need synchronization 
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
  - Keep Alive
  - Chat
  - Kick
  - All of the packets during the Player Joined World event

Hoping that latter one helps join timeout issues more too for slow connections.

Removes processing packet queue off of main thread
  - for the few cases where it is allowed, order is not necessary nor
    should it even be happening concurrently in first place (handshaking/login/status)

Ensures packets sent asynchronously are dispatched on main thread

This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.

This should solve some deadlock risks

This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
2020-05-06 05:28:47 -04:00

221 Zeilen
12 KiB
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Originalformat Blame Verlauf

From b66157b0e104e63060671da87f8b7070d77ec623 Mon Sep 17 00:00:00 2001
From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Date: Sun, 17 Mar 2019 21:46:56 +0200
Subject: [PATCH] Fire event on GS4 query
diff --git a/src/main/java/net/minecraft/server/RemoteConnectionThread.java b/src/main/java/net/minecraft/server/RemoteConnectionThread.java
index 66bfbcf02b5..d821ef9a757 100644
--- a/src/main/java/net/minecraft/server/RemoteConnectionThread.java
+++ b/src/main/java/net/minecraft/server/RemoteConnectionThread.java
@@ -15,7 +15,7 @@ public abstract class RemoteConnectionThread implements Runnable {
private static final Logger LOGGER = LogManager.getLogger();
private static final AtomicInteger i = new AtomicInteger(0);
protected boolean a;
- protected final IMinecraftServer b;
+ protected final IMinecraftServer b; protected IMinecraftServer getServer() { return this.b; } // Paper - OBFHELPER
protected final String c;
protected Thread d;
protected final int e = 5;
@@ -94,6 +94,7 @@ public abstract class RemoteConnectionThread implements Runnable {
this.b.g(s);
}
+ protected int getPlayerCount() { return this.d(); } // Paper - OBFHELPER
protected int d() {
return this.b.getPlayerCount();
}
diff --git a/src/main/java/net/minecraft/server/RemoteStatusListener.java b/src/main/java/net/minecraft/server/RemoteStatusListener.java
index f4f4e31d3c2..d5025938473 100644
--- a/src/main/java/net/minecraft/server/RemoteStatusListener.java
+++ b/src/main/java/net/minecraft/server/RemoteStatusListener.java
@@ -21,19 +21,19 @@ public class RemoteStatusListener extends RemoteConnectionThread {
private long h;
private final int i;
- private final int j;
- private final int k;
- private final String l;
- private final String m;
+ private final int j; private int getServerPort() { return this.j; } // Paper - OBFHELPER
+ private final int k; private int getMaxPlayers() { return this.k; } // Paper - OBFHELPER
+ private final String l; private String getMotd() { return this.l; } // Paper - OBFHELPER
+ private final String m; private String getWorldName() { return this.m; } // Paper - OBFHELPER
private DatagramSocket n;
private final byte[] o = new byte[1460];
private DatagramPacket p;
private final Map<SocketAddress, String> q;
- private String r;
+ private String r; private String getServerHost() { return this.r; } // Paper - OBFHELPER
private String s;
private final Map<SocketAddress, RemoteStatusListener.RemoteStatusChallenge> t;
private final long u;
- private final RemoteStatusReply v;
+ private final RemoteStatusReply v; private RemoteStatusReply getCachedFullResponse() { return this.v; } // Paper - OBFHELPER
private long w;
public RemoteStatusListener(IMinecraftServer iminecraftserver) {
@@ -91,6 +91,7 @@ public class RemoteStatusListener extends RemoteConnectionThread {
remotestatusreply.a((int) 0);
remotestatusreply.a(this.a(datagrampacket.getSocketAddress()));
+ /* Paper start - GS4 Query event
remotestatusreply.a(this.l);
remotestatusreply.a("SMP");
remotestatusreply.a(this.m);
@@ -98,6 +99,31 @@ public class RemoteStatusListener extends RemoteConnectionThread {
remotestatusreply.a(Integer.toString(this.k));
remotestatusreply.a((short) this.j);
remotestatusreply.a(this.r);
+ */
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.BASIC;
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
+ .motd(this.getMotd())
+ .map(this.getWorldName())
+ .currentPlayers(this.getPlayerCount())
+ .maxPlayers(this.getMaxPlayers())
+ .port(this.getServerPort())
+ .hostname(this.getServerHost())
+ .gameVersion(this.getServer().getVersion())
+ .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
+ .build();
+ com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
+ new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, datagrampacket.getAddress(), queryResponse);
+ queryEvent.callEvent();
+ queryResponse = queryEvent.getResponse();
+ remotestatusreply.writeString(queryResponse.getMotd());
+ remotestatusreply.writeString("SMP");
+ remotestatusreply.writeString(queryResponse.getMap());
+ remotestatusreply.writeString(Integer.toString(queryResponse.getCurrentPlayers()));
+ remotestatusreply.writeString(Integer.toString(queryResponse.getMaxPlayers()));
+ remotestatusreply.writeShort((short) queryResponse.getPort());
+ remotestatusreply.writeString(queryResponse.getHostname());
+ // Paper end
this.a(remotestatusreply.a(), datagrampacket);
this.a("Status [" + socketaddress + "]");
}
@@ -134,6 +160,7 @@ public class RemoteStatusListener extends RemoteConnectionThread {
this.v.a("splitnum");
this.v.a((int) 128);
this.v.a((int) 0);
+ /* Paper start - GS4 Query event
this.v.a("hostname");
this.v.a(this.l);
this.v.a("gametype");
@@ -169,6 +196,79 @@ public class RemoteStatusListener extends RemoteConnectionThread {
}
this.v.a((int) 0);
+ */
+ // Pack plugins
+ java.util.List<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> plugins = java.util.Collections.emptyList();
+ org.bukkit.plugin.Plugin[] bukkitPlugins;
+ if(((DedicatedServer) this.getServer()).server.getQueryPlugins() && (bukkitPlugins = org.bukkit.Bukkit.getPluginManager().getPlugins()).length > 0) {
+ plugins = java.util.stream.Stream.of(bukkitPlugins)
+ .map(plugin -> com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation.of(plugin.getName(), plugin.getDescription().getVersion()))
+ .collect(java.util.stream.Collectors.toList());
+ }
+
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
+ .motd(this.getMotd())
+ .map(this.getWorldName())
+ .currentPlayers(this.getPlayerCount())
+ .maxPlayers(this.getMaxPlayers())
+ .port(this.getServerPort())
+ .hostname(this.getServerHost())
+ .plugins(plugins)
+ .players(this.getServer().getPlayers())
+ .gameVersion(this.getServer().getVersion())
+ .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
+ .build();
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.FULL;
+ com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
+ new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, datagrampacket.getAddress(), queryResponse);
+ queryEvent.callEvent();
+ queryResponse = queryEvent.getResponse();
+ this.getCachedFullResponse().writeString("hostname");
+ this.getCachedFullResponse().writeString(queryResponse.getMotd());
+ this.getCachedFullResponse().writeString("gametype");
+ this.getCachedFullResponse().writeString("SMP");
+ this.getCachedFullResponse().writeString("game_id");
+ this.getCachedFullResponse().writeString("MINECRAFT");
+ this.getCachedFullResponse().writeString("version");
+ this.getCachedFullResponse().writeString(queryResponse.getGameVersion());
+ this.getCachedFullResponse().writeString("plugins");
+ java.lang.StringBuilder pluginsString = new java.lang.StringBuilder();
+ pluginsString.append(queryResponse.getServerVersion());
+ if(!queryResponse.getPlugins().isEmpty()) {
+ pluginsString.append(": ");
+ Iterator<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> iter = queryResponse.getPlugins().iterator();
+ while(iter.hasNext()) {
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation info = iter.next();
+ pluginsString.append(info.getName());
+ if (info.getVersion() != null) {
+ pluginsString.append(' ').append(info.getVersion().replaceAll(";", ","));
+ }
+ if (iter.hasNext()) {
+ pluginsString.append(';').append(' ');
+ }
+ }
+ }
+ this.getCachedFullResponse().writeString(pluginsString.toString());
+ this.getCachedFullResponse().writeString("map");
+ this.getCachedFullResponse().writeString(queryResponse.getMap());
+ this.getCachedFullResponse().writeString("numplayers");
+ this.getCachedFullResponse().writeString(Integer.toString(queryResponse.getCurrentPlayers()));
+ this.getCachedFullResponse().writeString("maxplayers");
+ this.getCachedFullResponse().writeString(Integer.toString(queryResponse.getMaxPlayers()));
+ this.getCachedFullResponse().writeString("hostport");
+ this.getCachedFullResponse().writeString(Integer.toString(queryResponse.getPort()));
+ this.getCachedFullResponse().writeString("hostip");
+ this.getCachedFullResponse().writeString(queryResponse.getHostname());
+ // The "meaningless data" start, copied from above
+ this.getCachedFullResponse().writeInt(0);
+ this.getCachedFullResponse().writeInt(1);
+ this.getCachedFullResponse().writeString("player_");
+ this.getCachedFullResponse().writeInt(0);
+ // "Meaningless data" end
+ queryResponse.getPlayers().forEach(this.getCachedFullResponse()::writeStringUnchecked);
+ this.getCachedFullResponse().writeInt(0);
+ // Paper end
return this.v.a();
}
}
diff --git a/src/main/java/net/minecraft/server/RemoteStatusReply.java b/src/main/java/net/minecraft/server/RemoteStatusReply.java
index 848b5c3f0e0..73efea7e135 100644
--- a/src/main/java/net/minecraft/server/RemoteStatusReply.java
+++ b/src/main/java/net/minecraft/server/RemoteStatusReply.java
@@ -18,15 +18,27 @@ public class RemoteStatusReply {
this.b.write(abyte, 0, abyte.length);
}
+ public void writeString(String string) throws IOException { this.a(string); } // Paper - OBFHELPER
public void a(String s) throws IOException {
this.b.writeBytes(s);
this.b.write(0);
}
+ // Paper start - unchecked exception variant to use in Stream API
+ public void writeStringUnchecked(String string) {
+ try {
+ writeString(string);
+ } catch (IOException e) {
+ com.destroystokyo.paper.util.SneakyThrow.sneaky(e);
+ }
+ }
+ // Paper end
+ public void writeInt(int i) throws IOException { this.a(i); } // Paper - OBFHELPER
public void a(int i) throws IOException {
this.b.write(i);
}
+ public void writeShort(short i) throws IOException { this.a(i); } // Paper - OBFHELPER
public void a(short short0) throws IOException {
this.b.writeShort(Short.reverseBytes(short0));
}
--
2.26.2
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