diff --git a/src/pocketmine/PocketMine.php b/src/pocketmine/PocketMine.php
index 50e31768b..b2d5714e7 100644
--- a/src/pocketmine/PocketMine.php
+++ b/src/pocketmine/PocketMine.php
@@ -345,12 +345,24 @@ namespace pocketmine {
 		$logger->warning("Non-packaged PocketMine-MP installation detected, do not use on production.");
 	}
 
+	ThreadManager::init();
 	$server = new Server($autoloader, $logger, \pocketmine\PATH, \pocketmine\DATA, \pocketmine\PLUGIN_PATH);
 	$server->start();
+
+	foreach(ThreadManager::getInstance()->getAll() as $id => $thread){
+		if($thread->isRunning()){
+			$logger->debug("Stopping ".(new \ReflectionClass($thread))->getShortName()." thread");
+			if($thread instanceof Thread){
+				$thread->kill();
+				$thread->detach();
+			}elseif($thread instanceof Worker){
+				$thread->shutdown();
+				$thread->join();
+			}
+		}
+	}
+
 	$logger->shutdown();
 	$logger->join();
 
-	kill(getmypid());
-	exit(0);
-
 }
diff --git a/src/pocketmine/Thread.php b/src/pocketmine/Thread.php
new file mode 100644
index 000000000..c23b15bb5
--- /dev/null
+++ b/src/pocketmine/Thread.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+namespace pocketmine;
+
+/**
+ * This class must be extended by all custom threading classes
+ */
+abstract class Thread extends \Thread{
+
+	public final function start($options = PTHREADS_INHERIT_ALL){
+		ThreadManager::getInstance()->add($this);
+		return parent::start($options & ~PTHREADS_INHERIT_CLASSES);
+	}
+}
\ No newline at end of file
diff --git a/src/pocketmine/ThreadManager.php b/src/pocketmine/ThreadManager.php
new file mode 100644
index 000000000..f507cd70b
--- /dev/null
+++ b/src/pocketmine/ThreadManager.php
@@ -0,0 +1,68 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+namespace pocketmine;
+
+class ThreadManager extends \Threaded{
+
+	/** @var ThreadManager */
+	private static $instance = null;
+
+	public static function init(){
+		self::$instance = new ThreadManager();
+	}
+
+	/**
+	 * @return ThreadManager
+	 */
+	public static function getInstance(){
+		return self::$instance;
+	}
+
+	/**
+	 * @param Worker|Thread $thread
+	 */
+	public function add($thread){
+		if($thread instanceof Thread or $thread instanceof Worker){
+			$this->{spl_object_hash($thread)} = $thread;
+		}
+	}
+
+	/**
+	 * @param Worker|Thread $thread
+	 */
+	public function remove($thread){
+		if($thread instanceof Thread or $thread instanceof Worker){
+			unset($this->{spl_object_hash($thread)});
+		}
+	}
+
+	/**
+	 * @return Worker[]|Thread[]
+	 */
+	public function getAll(){
+		$array = [];
+		foreach($this as $key => $thread){
+			$array[$key] = $thread;
+		}
+		return $array;
+	}
+}
\ No newline at end of file
diff --git a/src/pocketmine/Worker.php b/src/pocketmine/Worker.php
new file mode 100644
index 000000000..e84bf7d52
--- /dev/null
+++ b/src/pocketmine/Worker.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+namespace pocketmine;
+
+/**
+ * This class must be extended by all custom threading classes
+ */
+abstract class Worker extends \Worker{
+
+	public final function start($options = PTHREADS_INHERIT_ALL){
+		ThreadManager::getInstance()->add($this);
+		return parent::start($options & ~PTHREADS_INHERIT_CLASSES);
+	}
+}
\ No newline at end of file
diff --git a/src/pocketmine/command/CommandReader.php b/src/pocketmine/command/CommandReader.php
index e479c4c60..ac8615f05 100644
--- a/src/pocketmine/command/CommandReader.php
+++ b/src/pocketmine/command/CommandReader.php
@@ -21,7 +21,9 @@
 
 namespace pocketmine\command;
 
-class CommandReader extends \Thread{
+use pocketmine\Thread;
+
+class CommandReader extends Thread{
 
 	private $stream;
 	/** @var resource */
@@ -36,7 +38,7 @@ class CommandReader extends \Thread{
 	 */
 	public function __construct($stream = "php://stdin"){
 		$this->stream = $stream;
-		$this->start(PTHREADS_INHERIT_ALL & ~PTHREADS_INHERIT_CLASSES);
+		$this->start();
 	}
 
 	private function readLine(){
diff --git a/src/pocketmine/level/generator/GenerationThread.php b/src/pocketmine/level/generator/GenerationThread.php
index 1c4dca32f..81c2a6d72 100644
--- a/src/pocketmine/level/generator/GenerationThread.php
+++ b/src/pocketmine/level/generator/GenerationThread.php
@@ -22,7 +22,9 @@
 namespace pocketmine\level\generator;
 
 
-class GenerationThread extends \Thread{
+use pocketmine\Thread;
+
+class GenerationThread extends Thread{
 
 	protected $loadPaths;
 	/** @var \SplAutoloader */
@@ -69,7 +71,7 @@ class GenerationThread extends \Thread{
 		@socket_set_option($this->externalSocket, SOL_SOCKET, SO_SNDBUF, 1024 * 1024 * 2);
 		@socket_set_option($this->externalSocket, SOL_SOCKET, SO_RCVBUF, 1024 * 1024 * 2);
 
-		$this->start(PTHREADS_INHERIT_ALL & ~PTHREADS_INHERIT_CLASSES);
+		$this->start();
 	}
 
 	protected function addDependency(array &$loadPaths, \ReflectionClass $dep){
diff --git a/src/pocketmine/scheduler/AsyncWorker.php b/src/pocketmine/scheduler/AsyncWorker.php
index ccef45b2d..f70b1c40b 100644
--- a/src/pocketmine/scheduler/AsyncWorker.php
+++ b/src/pocketmine/scheduler/AsyncWorker.php
@@ -21,15 +21,11 @@
 
 namespace pocketmine\scheduler;
 
-class AsyncWorker extends \Worker{
+use pocketmine\Worker;
+
+class AsyncWorker extends Worker{
 	public $path;
 
-	public function start($options = PTHREADS_INHERIT_ALL){
-		$this->path = \pocketmine\PATH;
-
-		return parent::start($options & ~PTHREADS_INHERIT_CLASSES);
-	}
-
 	public function run(){
 		require($this->path . "src/spl/SplClassLoader.php");
 		$autoloader = new \SplClassLoader();