Move functions from PocketMine.php to Utils

This cleans a lot of mess out of the bootstrap file, and also has the added bonus that threads which do not inherit functions can now get access to them by autoloading Utils.

src/pocketmine/utils/MainLogger.php

@@ -159,9 +159,9 @@ class MainLogger extends \AttachableThreadedLogger{
 		}
 		$errno = $errorConversion[$errno] ?? $errno;
 		$errstr = preg_replace('/\s+/', ' ', trim($errstr));
-		$errfile = \pocketmine\cleanPath($errfile);
+		$errfile = Utils::cleanPath($errfile);
 		$this->log($type, get_class($e) . ": \"$errstr\" ($errno) in \"$errfile\" at line $errline");
-		foreach(\pocketmine\getTrace(0, $trace) as $i => $line){
+		foreach(Utils::getTrace(0, $trace) as $i => $line){
 			$this->debug($line, true);
 		}
 

src/pocketmine/utils/ServerKiller.php

@@ -40,7 +40,7 @@ class ServerKiller extends Thread{
 		});
 		if(time() - $start >= $this->time){
 			echo "\nTook too long to stop, server was killed forcefully!\n";
-			@\pocketmine\kill(getmypid());
+			@Utils::kill(getmypid());
 		}
 	}
 

src/pocketmine/utils/Utils.php

@@ -543,4 +543,83 @@ class Utils{
 
 		return json_decode(base64_decode(strtr($payloadB64, '-_', '+/'), true), true);
 	}
+
+	public static function kill($pid) : void{
+		global $logger;
+		if($logger instanceof MainLogger){
+			$logger->syncFlushBuffer();
+		}
+		switch(Utils::getOS()){
+			case "win":
+				exec("taskkill.exe /F /PID " . ((int) $pid) . " > NUL");
+				break;
+			case "mac":
+			case "linux":
+			default:
+				if(function_exists("posix_kill")){
+					posix_kill($pid, 9); //SIGKILL
+				}else{
+					exec("kill -9 " . ((int) $pid) . " > /dev/null 2>&1");
+				}
+		}
+	}
+
+	/**
+	 * @param object $value
+	 * @param bool   $includeCurrent
+	 *
+	 * @return int
+	 */
+	public static function getReferenceCount($value, $includeCurrent = true){
+		ob_start();
+		debug_zval_dump($value);
+		$ret = explode("\n", ob_get_contents());
+		ob_end_clean();
+
+		if(count($ret) >= 1 and preg_match('/^.* refcount\\(([0-9]+)\\)\\{$/', trim($ret[0]), $m) > 0){
+			return ((int) $m[1]) - ($includeCurrent ? 3 : 4); //$value + zval call + extra call
+		}
+		return -1;
+	}
+
+	/**
+	 * @param int        $start
+	 * @param array|null $trace
+	 *
+	 * @return array
+	 */
+	public static function getTrace($start = 0, $trace = null){
+		if($trace === null){
+			if(function_exists("xdebug_get_function_stack")){
+				$trace = array_reverse(xdebug_get_function_stack());
+			}else{
+				$e = new \Exception();
+				$trace = $e->getTrace();
+			}
+		}
+
+		$messages = [];
+		$j = 0;
+		for($i = (int) $start; isset($trace[$i]); ++$i, ++$j){
+			$params = "";
+			if(isset($trace[$i]["args"]) or isset($trace[$i]["params"])){
+				if(isset($trace[$i]["args"])){
+					$args = $trace[$i]["args"];
+				}else{
+					$args = $trace[$i]["params"];
+				}
+
+				$params = implode(", ", array_map(function($value){
+					return (is_object($value) ? get_class($value) . " object" : gettype($value) . " " . (is_array($value) ? "Array()" : Utils::printable(@strval($value))));
+				}, $args));
+			}
+			$messages[] = "#$j " . (isset($trace[$i]["file"]) ? self::cleanPath($trace[$i]["file"]) : "") . "(" . (isset($trace[$i]["line"]) ? $trace[$i]["line"] : "") . "): " . (isset($trace[$i]["class"]) ? $trace[$i]["class"] . (($trace[$i]["type"] === "dynamic" or $trace[$i]["type"] === "->") ? "->" : "::") : "") . $trace[$i]["function"] . "(" . Utils::printable($params) . ")";
+		}
+
+		return $messages;
+	}
+
+	public static function cleanPath($path){
+		return str_replace(["\\", ".php", "phar://", str_replace(["\\", "phar://"], ["/", ""], \pocketmine\PATH), str_replace(["\\", "phar://"], ["/", ""], \pocketmine\PLUGIN_PATH)], ["/", "", "", "", ""], $path);
+	}
 }