Added extra memory reportings (heap, stack), stop tasks faster, added extra timeouts fro ServerKiller

src/pocketmine/scheduler/AsyncPool.php

@@ -122,6 +122,7 @@ class AsyncPool{
 	public function removeTasks(){
 		do{
 			foreach($this->tasks as $task){
+				$task->cancelRun();
 				$this->removeTask($task);
 			}
 
@@ -144,7 +145,9 @@ class AsyncPool{
 		foreach($this->tasks as $task){
 			if($task->isGarbage() and !$task->isRunning()){
 
-				$task->onCompletion($this->server);
+				if(!$task->hasCancelledRun()){
+					$task->onCompletion($this->server);
+				}
 
 				$this->removeTask($task);
 			}elseif($task->isTerminated()){

src/pocketmine/scheduler/AsyncTask.php

@@ -35,13 +35,16 @@ abstract class AsyncTask extends \Collectable{
 
 	private $result = null;
 	private $serialized = false;
+	private $cancelRun = false;
 	/** @var int */
 	private $taskId = null;
 
 	public function run(){
 		$this->result = null;
 
-		$this->onRun();
+		if($this->cancelRun !== true){
+			$this->onRun();
+		}
 
 		$this->setGarbage();
 	}
@@ -62,6 +65,14 @@ abstract class AsyncTask extends \Collectable{
 		return $this->serialized ? unserialize($this->result) : $this->result;
 	}
 
+	public function cancelRun(){
+		$this->cancelRun = true;
+	}
+
+	public function hasCancelledRun(){
+		return $this->cancelRun === true;
+	}
+
 	/**
 	 * @return bool
 	 */

src/pocketmine/scheduler/SendUsageTask.php

@@ -139,7 +139,7 @@ class SendUsageTask extends AsyncTask{
 
 	public function onRun(){
 		try{
-			Utils::postURL($this->endpoint, $this->data, 10, [
+			Utils::postURL($this->endpoint, $this->data, 5, [
 				"Content-Type: application/json",
 				"Content-Length: ". strlen($this->data)
 			]);