Use getmypid() as dependency (improve testing)

src/Core/Process.php

@@ -67,14 +67,14 @@ class Process
 	 */
 	private $pid;
 
-	public function __construct(LoggerInterface $logger, App\Mode $mode, IConfig $config, Model\Process $processModel, string $basepath)
+	public function __construct(LoggerInterface $logger, App\Mode $mode, IConfig $config, Model\Process $processModel, string $basepath, int $pid)
 	{
 		$this->logger = $logger;
 		$this->mode = $mode;
 		$this->config = $config;
 		$this->basePath = $basepath;
 		$this->processModel = $processModel;
-		$this->pid = getmypid();
+		$this->pid = $pid;
 	}
 
 	/**

src/Core/Worker.php

@@ -1172,7 +1172,7 @@ class Worker
 		$args = ['no_cron' => !$do_cron];
 
 		$a = DI::app();
-		$process = new Core\Process(DI::logger(), DI::mode(), DI::config(), $a->getBasePath());
+		$process = new Core\Process(DI::logger(), DI::mode(), DI::config(), DI::modelProcess(), $a->getBasePath(), getmypid());
 		$process->run($command, $args);
 
 		// after spawning we have to remove the flag.

static/dependencies.config.php

@@ -187,6 +187,7 @@ return [
 	Process::class => [
 		'constructParams' => [
 			[Dice::INSTANCE => '$basepath'],
+			getmypid(),
 		],
 	],
 	App\Router::class => [