Merge remote-tracking branch 'origin/main' into TNTLeague/finish

This commit is contained in:
2024-11-24 22:20:41 +01:00
3 changed files with 156 additions and 117 deletions
@@ -64,7 +64,6 @@ public class Border {
ghostBarriers.put(player.getUniqueId(), new HashSet<>());
lastLocation.put(player.getUniqueId(), player.getLocation());
FightSystem.getPlugin().getLogger().log(Level.INFO, () -> player.getName() + " was added to border " + name);
}
public boolean contains(Player player) {
@@ -72,7 +71,6 @@ public class Border {
}
public void removePlayer(Player player) {
FightSystem.getPlugin().getLogger().log(Level.INFO, () -> player.getName() + " was removed from border " + name);
lastLocation.remove(player.getUniqueId());
Set<Block> blocks = ghostBarriers.remove(player.getUniqueId());
if(blocks == null || !player.isOnline())
@@ -19,129 +19,22 @@
package de.steamwar.core;
import com.comphenix.tinyprotocol.Reflection;
import com.comphenix.tinyprotocol.TinyProtocol;
import com.viaversion.viaversion.api.Via;
import de.steamwar.sql.internal.Statement;
import io.netty.channel.ChannelFuture;
import org.bukkit.Bukkit;
import org.eclipse.openj9.criu.CRIUSupport;
import org.eclipse.openj9.criu.JVMCRIUException;
import sun.misc.Signal;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Comparator;
import java.util.List;
import java.util.logging.Level;
import java.util.stream.Stream;
public class CheckpointUtils {
private CheckpointUtils() {}
public static void signalHandler() {
Signal.handle(new Signal("USR1"), signal -> Bukkit.getScheduler().runTask(Core.getInstance(), CheckpointUtils::freeze));
try {
CheckpointUtilsJ9.signalHandler();
} catch (NoClassDefFoundError e) {
//ignore
}
}
public static void freeze() {
String checkpointFile = System.getProperty("checkpoint");
if(!CRIUSupport.isCheckpointAllowed() || checkpointFile == null) {
Bukkit.shutdown();
return;
}
Bukkit.getOnlinePlayers().forEach(player -> player.kickPlayer(null));
List<?> networkManagers = TinyProtocol.networkManagers.get(TinyProtocol.getServerConnection(Core.getInstance()));
if(!Bukkit.getOnlinePlayers().isEmpty() || !networkManagers.isEmpty()) {
Core.getInstance().getLogger().log(Level.INFO, "Waiting for players to disconnect for checkpointing");
Bukkit.getScheduler().runTaskLater(Core.getInstance(), CheckpointUtils::freeze, 1);
return;
}
Path path = FileSystems.getDefault().getPath(checkpointFile);
try {
freezeInternal(path);
} catch (Exception e) {
String message = e.getMessage() != null ? e.getMessage() : "";
if(message.contains("Connected TCP socket")) {
Core.getInstance().getLogger().log(Level.INFO, "Connected TCP socket, waiting for checkpointing");
Bukkit.getScheduler().runTaskLater(Core.getInstance(), CheckpointUtils::freeze, 1);
return;
}
Bukkit.shutdown();
if(!message.contains("Can't dump ghost file") && !message.contains("Can't create link remap")) // File/Jar has been updated
throw new SecurityException(e);
} finally {
// Delete checkpoint
try (Stream<Path> stream = Files.walk(path)) {
stream.sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete);
} catch (IOException e) {
//ignore
}
CheckpointUtilsJ9.freeze();
} catch (NoClassDefFoundError e) {
//ignore
}
}
private static final Reflection.FieldAccessor<List> channelFutures = Reflection.getField(TinyProtocol.serverConnection, List.class, 0, ChannelFuture.class);
private static final Reflection.MethodInvoker bind = Reflection.getMethod(TinyProtocol.serverConnection, null, InetAddress.class, int.class);
private static void freezeInternal(Path path) throws Exception {
Bukkit.getPluginManager().callEvent(new CRIUSleepEvent());
Bukkit.getWorlds().forEach(FlatteningWrapper.impl::syncSave);
Statement.closeAll();
// Close socket
Via.getManager().getInjector().uninject();
Object serverConnection = TinyProtocol.getServerConnection(Core.getInstance());
List<?> channels = channelFutures.get(serverConnection);
for(Object future : channels) {
((ChannelFuture) future).channel().close().syncUninterruptibly();
}
channels.clear();
System.runFinalization();
System.gc();
// Do the checkpoint
path.toFile().mkdirs();
CRIUSupport criu = new CRIUSupport(path);
criu.setAutoDedup(true);
criu.setFileLocks(true);
criu.setShellJob(true);
criu.setLogFile("criu.log");
try {
criu.checkpointJVM();
} catch (JVMCRIUException e) {
Path logfile = path.resolve("criu.log");
if(logfile.toFile().exists())
throw new IllegalStateException("Could not create checkpoint, criu log:\n" + new String(Files.readAllBytes(logfile)), e);
throw e;
}
// Get new port
int port;
try (DataInputStream stream = new DataInputStream(Files.newInputStream(path.resolve("port").toFile().toPath()))) {
port = stream.readInt();
}
// Reopen socket
bind.invoke(serverConnection, InetAddress.getLoopbackAddress(), port);
if(Core.getVersion() > 12) {
for(Object future : channels) {
((ChannelFuture) future).channel().config().setAutoRead(true);
}
}
Via.getManager().getInjector().inject();
Bukkit.getPluginManager().callEvent(new CRIUWakeupEvent());
Core.getInstance().getLogger().log(Level.INFO, "Checkpoint restored");
}
}
@@ -0,0 +1,148 @@
/*
* This file is a part of the SteamWar software.
*
* Copyright (C) 2024 SteamWar.de-Serverteam
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package de.steamwar.core;
import com.comphenix.tinyprotocol.Reflection;
import com.comphenix.tinyprotocol.TinyProtocol;
import com.viaversion.viaversion.api.Via;
import de.steamwar.sql.internal.Statement;
import io.netty.channel.ChannelFuture;
import org.bukkit.Bukkit;
import org.eclipse.openj9.criu.CRIUSupport;
import org.eclipse.openj9.criu.JVMCRIUException;
import sun.misc.Signal;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Comparator;
import java.util.List;
import java.util.logging.Level;
import java.util.stream.Stream;
class CheckpointUtilsJ9 {
private CheckpointUtilsJ9() {}
static void signalHandler() {
Signal.handle(new Signal("USR1"), signal -> Bukkit.getScheduler().runTask(Core.getInstance(), CheckpointUtils::freeze));
}
static void freeze() {
String checkpointFile = System.getProperty("checkpoint");
if(!CRIUSupport.isCheckpointAllowed() || checkpointFile == null) {
Bukkit.shutdown();
return;
}
Bukkit.getOnlinePlayers().forEach(player -> player.kickPlayer(null));
List<?> networkManagers = TinyProtocol.networkManagers.get(TinyProtocol.getServerConnection(Core.getInstance()));
if(!Bukkit.getOnlinePlayers().isEmpty() || !networkManagers.isEmpty()) {
Core.getInstance().getLogger().log(Level.INFO, "Waiting for players to disconnect for checkpointing");
Bukkit.getScheduler().runTaskLater(Core.getInstance(), CheckpointUtils::freeze, 1);
return;
}
Path path = FileSystems.getDefault().getPath(checkpointFile);
try {
freezeInternal(path);
} catch (Exception e) {
String message = e.getMessage() != null ? e.getMessage() : "";
if(message.contains("Connected TCP socket")) {
Core.getInstance().getLogger().log(Level.INFO, "Connected TCP socket, waiting for checkpointing");
Bukkit.getScheduler().runTaskLater(Core.getInstance(), CheckpointUtils::freeze, 1);
return;
}
Bukkit.shutdown();
if(!message.contains("Can't dump ghost file") && !message.contains("Can't create link remap")) // File/Jar has been updated
throw new SecurityException(e);
} finally {
// Delete checkpoint
try (Stream<Path> stream = Files.walk(path)) {
stream.sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete);
} catch (IOException e) {
//ignore
}
}
}
private static final Reflection.FieldAccessor<List> channelFutures = Reflection.getField(TinyProtocol.serverConnection, List.class, 0, ChannelFuture.class);
private static final Reflection.MethodInvoker bind = Reflection.getMethod(TinyProtocol.serverConnection, null, InetAddress.class, int.class);
private static void freezeInternal(Path path) throws Exception {
Bukkit.getPluginManager().callEvent(new CRIUSleepEvent());
Bukkit.getWorlds().forEach(FlatteningWrapper.impl::syncSave);
Statement.closeAll();
// Close socket
Via.getManager().getInjector().uninject();
Object serverConnection = TinyProtocol.getServerConnection(Core.getInstance());
List<?> channels = channelFutures.get(serverConnection);
for(Object future : channels) {
((ChannelFuture) future).channel().close().syncUninterruptibly();
}
channels.clear();
System.runFinalization();
System.gc();
// Do the checkpoint
path.toFile().mkdirs();
CRIUSupport criu = new CRIUSupport(path);
criu.setAutoDedup(true);
criu.setFileLocks(true);
criu.setShellJob(true);
criu.setLogFile("criu.log");
try {
criu.checkpointJVM();
} catch (JVMCRIUException e) {
Path logfile = path.resolve("criu.log");
if(logfile.toFile().exists())
throw new IllegalStateException("Could not create checkpoint, criu log:\n" + new String(Files.readAllBytes(logfile)), e);
throw e;
}
// Get new port
int port;
try (DataInputStream stream = new DataInputStream(Files.newInputStream(path.resolve("port").toFile().toPath()))) {
port = stream.readInt();
}
// Reopen socket
bind.invoke(serverConnection, InetAddress.getLoopbackAddress(), port);
if(Core.getVersion() > 12) {
for(Object future : channels) {
((ChannelFuture) future).channel().config().setAutoRead(true);
}
}
Via.getManager().getInjector().inject();
Bukkit.getPluginManager().callEvent(new CRIUWakeupEvent());
Core.getInstance().getLogger().log(Level.INFO, "Checkpoint restored");
}
}