Fix closing issues

src/main/java/com/volmit/iris/util/io/InstanceState.java

@@ -0,0 +1,53 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.io;
+
+import com.volmit.iris.util.math.RNG;
+
+import java.io.File;
+import java.io.IOException;
+
+public class InstanceState {
+    public static int getInstanceId()
+    {
+        try {
+            return Integer.parseInt(IO.readAll(instanceFile()).trim());
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+
+        return -1;
+    }
+
+    public static void updateInstanceId()
+    {
+        try {
+            IO.writeAll(instanceFile(), RNG.r.imax() + "");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private static File instanceFile()
+    {
+        File f = new File("plugins/Iris/cache/instance");
+        f.getParentFile().mkdirs();
+        return f;
+    }
+}

src/main/java/com/volmit/iris/util/parallel/MultiBurst.java

@@ -21,6 +21,7 @@ package com.volmit.iris.util.parallel;
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.IrisSettings;
 import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.io.InstanceState;
 import com.volmit.iris.util.math.M;
 import com.volmit.iris.util.scheduling.J;
 import com.volmit.iris.util.scheduling.Looper;
@@ -38,6 +39,7 @@ public class MultiBurst {
     private final String name;
     private final int tc;
     private final int priority;
+    private final int instance;
 
     public MultiBurst(int tc) {
         this("Iris", 6, tc);
@@ -47,17 +49,24 @@ public class MultiBurst {
         this.name = name;
         this.priority = priority;
         this.tc = tc;
+        instance = InstanceState.getInstanceId();
         last = new AtomicLong(M.ms());
         heartbeat = new Looper() {
             @Override
             protected long loop() {
+                if(instance != InstanceState.getInstanceId())
+                {
+                    shutdownNow();
+                    return -1;
+                }
+
                 if (M.ms() - last.get() > TimeUnit.MINUTES.toMillis(1) && service != null) {
                     service.shutdown();
                     service = null;
                     Iris.debug("Shutting down MultiBurst Pool " + getName() + " to conserve resources.");
                 }
 
-                return 60000;
+                return 30000;
             }
         };
         heartbeat.setName(name + " Monitor");

src/main/java/com/volmit/iris/util/scheduling/Looper.java

@@ -42,7 +42,7 @@ public abstract class Looper extends Thread {
             }
         }
 
-        Iris.info("Thread " + getName() + " Shutdown. Pregen stopped / finished.");
+        Iris.debug("Iris Thread " + getName() + " Shutdown.");
     }
 
     protected abstract long loop();