Merge pull request 'Checkpoint idle server' (#221) from checkpoint into master

Reviewed-on: #221
Reviewed-by: YoyoNow <jwsteam@nidido.de>

BauSystem_Main/src/BauSystem.properties

@@ -902,7 +902,7 @@ REGION_TNT_NO_PERMS=§cYou are not allowed to toggle tnt damage here
 REGION_TNT_BUILD_DESTROY=§cAn explosion would have destroyed blocks in the building area
 REGION_TNT_TB_DESTROY=§cAn explosion would have destroyed blocks in the testblock area
 
-AFK_KICK_MESSAGE=§cNothing happened on this server for 5 minutes.
+AFK_KICK_MESSAGE=§cNothing happened on this server for 15 minutes.
 AFK_WARNING_MESSAGE=§cThis server will stop in one minute if you remain inactive
 
 SKIN_HELP = §8/§eskin §8[§7Shortform§8] §8[§7Creator§8|§epublic§8] §8[§7Name...§8] §8- §7Creates the skin schematic. Use 'public' as creator to have no creator, then copy the message to YoyoNow by clicking

BauSystem_Main/src/BauSystem_de.properties

@@ -863,7 +863,7 @@ REGION_TNT_TB=§aTNT-Schaden außerhalb Baurahmen aktiviert
 REGION_TNT_NO_PERMS=§cDu darfst hier nicht TNT-Schaden (de-)aktivieren
 REGION_TNT_BUILD_DESTROY=§cEine Explosion hätte Blöcke im Baubereich zerstört
 REGION_TNT_TB_DESTROY=§cEine Explosion hätte Blöcke im Testblockbereich zerstört
-AFK_KICK_MESSAGE=§cAuf diesem Server ist seit 5 Minuten nichts passiert.
+AFK_KICK_MESSAGE=§cAuf diesem Server ist seit 15 Minuten nichts passiert.
 AFK_WARNING_MESSAGE=§cDieser Server wird bei weiterer Inaktivität in einer Minute gestoppt
 
 SKIN_HELP = §8/§eskin §8[§7Kuerzel§8] §8[§7Creator§8|§epublic§8] §8[§7Name...§8] §8- §7Erstellt die Skin Schematics. 'public' als Creator nutzen für keinen Creator, danach die nachricht an YoyoNow kopieren (mit Click kopieren)

BauSystem_Main/src/de/steamwar/bausystem/BauSystem.java

@@ -22,7 +22,6 @@ package de.steamwar.bausystem;
 import com.comphenix.tinyprotocol.TinyProtocol;
 import de.steamwar.bausystem.configplayer.Config;
 import de.steamwar.bausystem.features.tpslimit.TPSFreezeUtils;
-import de.steamwar.bausystem.features.world.RamUsage;
 import de.steamwar.bausystem.linkage.LinkageUtils;
 import de.steamwar.bausystem.region.loader.PrototypeLoader;
 import de.steamwar.bausystem.region.loader.RegionLoader;
@@ -76,25 +75,7 @@ public class BauSystem extends JavaPlugin implements Listener {
         new Updater(RegionLoader.file, RegionLoader::load);
 
         LinkageUtils.link();
-        RamUsage.init();
         TickListener.impl.init();
-
-        // This could disable any watchdog stuff. We need to investigate if this is a problem.
-        /*
-        Thread thread = new Thread(() -> {
-            while (true) {
-                WatchdogThread.tick();
-                try {
-                    Thread.sleep(1000);
-                } catch (InterruptedException e) {
-                    Thread.currentThread().interrupt();
-                }
-            }
-        });
-        thread.setName("WatchdogThread ticker");
-        thread.setDaemon(true);
-        thread.start();
-         */
     }
 
     @Override

BauSystem_Main/src/de/steamwar/bausystem/features/world/AFKStopperListener.java

@@ -20,63 +20,56 @@
 package de.steamwar.bausystem.features.world;
 
 import de.steamwar.bausystem.BauSystem;
+import de.steamwar.core.CheckpointUtils;
 import de.steamwar.linkage.Linked;
 import org.bukkit.Bukkit;
+import org.bukkit.Location;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerMoveEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
 
 @Linked
 public class AFKStopperListener implements Listener {
 
-    // CPU > 50%
-    // RAM > 60%
-
     private int afkTicks = 0;
 
     public AFKStopperListener() {
         Bukkit.getScheduler().runTaskTimer(BauSystem.getInstance(), () -> {
-            // System.out.println("CPU: " + load + " RAM: " + usage);
-            if (Bukkit.getOnlinePlayers().isEmpty()) {
-                if (RamUsage.getLoad() >= 50.0 || RamUsage.getUsage() >= 0.6) {
-                    Bukkit.shutdown();
-                    return;
-                }
-            } else if (RamUsage.getLoad() < 50.0 && RamUsage.getUsage() < 0.6) {
-                afkTicks = 0;
-                return;
-            }
             switch (afkTicks) {
-                case 90:
-                    Bukkit.shutdown();
-                    break;
                 case 15:
                     for (Player p : Bukkit.getOnlinePlayers()) {
                         p.kickPlayer(BauSystem.MESSAGE.parse("AFK_KICK_MESSAGE", p));
                     }
-                case 12:
+                case 14:
                     BauSystem.MESSAGE.broadcast("AFK_WARNING_MESSAGE");
                 default:
                     afkTicks++;
             }
-        }, 20*60, 20*60); //every minute
+        }, 1200, 1200); //every minute
     }
 
     @EventHandler
     public void onPlayerMove(PlayerMoveEvent event) {
-        if (event.getTo() == null) return;
-        if (event.getFrom().getPitch() != event.getTo().getPitch()) {
+        Location to = event.getTo();
+        if (to == null)
+            return;
+
+        Location from = event.getFrom();
+        if (from.getPitch() != to.getPitch() || from.getYaw() != to.getYaw())
             afkTicks = 0;
-        }
-        if (event.getFrom().getYaw() != event.getTo().getYaw()) {
-            afkTicks = 0;
-        }
     }
 
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
         event.getPlayer().setOp(true);
     }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        if(Bukkit.getOnlinePlayers().isEmpty() || (Bukkit.getOnlinePlayers().size() == 1 && Bukkit.getOnlinePlayers().contains(event.getPlayer())))
+            CheckpointUtils.freeze();
+    }
 }

BauSystem_Main/src/de/steamwar/bausystem/features/world/RamUsage.java

@@ -1,120 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2021  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.bausystem.features.world;
-
-import lombok.experimental.UtilityClass;
-
-import java.io.*;
-import java.util.concurrent.locks.LockSupport;
-
-@UtilityClass
-public class RamUsage {
-
-    private File meminfo = new File("/proc/meminfo");
-    private File stat = new File("/proc/stat");
-
-    private double usageSelf = 0D;
-    private double usage = 0D;
-    private double load = 0D;
-
-    public static void init() {
-    }
-
-    static {
-        Thread thread = new Thread(() -> {
-            while (true) {
-                long maxMemory = Runtime.getRuntime().maxMemory();
-                long totalMemory = Runtime.getRuntime().totalMemory();
-                long freeMemory = Runtime.getRuntime().freeMemory();
-                long usedMemory = totalMemory - freeMemory;
-                usageSelf = usedMemory / (double) totalMemory;
-                double usageSelfByMax = usedMemory / (double) maxMemory;
-                // System.out.println("Self: " + usageSelf + "/" + usageSelfByMax + /* " " + maxMemory + " " + totalMemory + " " + freeMemory + " " + usedMemory + */ "   Ram: " + usage + "   CPU: " + load);
-
-                usage = _getUsage();
-                load = _getLoad();
-                Thread.yield();
-                LockSupport.parkNanos(1000000000L);
-            }
-        });
-        thread.setDaemon(true);
-        thread.setName("RamUsage");
-        thread.start();
-    }
-
-    public static double getUsage() {
-        return usage;
-    }
-
-    private static double _getUsage() {
-        try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(meminfo)))) {
-            String memTotal = bufferedReader.readLine().replaceAll(" +", " ");
-            bufferedReader.readLine();
-            String memAvailable = bufferedReader.readLine().replaceAll(" +", " ");
-
-            long memTotalLong = getNumber(memTotal);
-            long memAvailableLong = getNumber(memAvailable);
-            return (memTotalLong - memAvailableLong) / (double) memTotalLong;
-        } catch (IOException e) {
-            return 1D;
-        }
-    }
-
-    public static double getLoad() {
-        return load;
-    }
-
-    private long lastCpuSecond = -1;
-    private long lastCpuForth = -1;
-    private long lastCpuFifth = -1;
-
-    private static double _getLoad() {
-        try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(stat)))) {
-            String[] strings = bufferedReader.readLine().split(" ");
-
-            long cpuSecond = Long.parseLong(strings[2]);
-            long cpuForth = Long.parseLong(strings[4]);
-            long cpuFifth = Long.parseLong(strings[5]);
-
-            if (lastCpuSecond == -1) {
-                lastCpuSecond = cpuSecond;
-                lastCpuForth = cpuForth;
-                lastCpuFifth = cpuFifth;
-                return 0D;
-            }
-
-            long cpuSecondDiff = cpuSecond - lastCpuSecond;
-            long cpuForthDiff = cpuForth - lastCpuForth;
-            long cpuSixthDiff = cpuFifth - lastCpuFifth;
-
-            lastCpuSecond = cpuSecond;
-            lastCpuForth = cpuForth;
-            lastCpuFifth = cpuFifth;
-
-            return (cpuSecondDiff + cpuForthDiff) / (double) (cpuSecondDiff + cpuForthDiff + cpuSixthDiff);
-        } catch (IOException e) {
-            return 1D;
-        }
-    }
-
-    private static long getNumber(String s) {
-        return Long.parseLong(s.split(" ")[1]);
-    }
-}