coroutines truly are cursed

src/Engine/Window/WindowManager.h

@@ -11,6 +11,7 @@ class WindowManager
 public:
 	WindowManager();
 	~WindowManager();
+	Job init();
 	PWindow addWindow(const WindowCreateInfo &createInfo);
 	void notifyWindowClosed(PWindow window);
 	static Gfx::PGraphics getGraphics()
@@ -21,9 +22,16 @@ public:
 	{
 		return windows.size();
 	}
+	void waitForCompletion()
+	{
+		std::unique_lock lock(windowsLock);
+		windowsCV.wait(lock);
+	}
 
 private:
 	Array<PWindow> windows;
+	std::mutex windowsLock;
+	std::condition_variable windowsCV;
 	static Gfx::PGraphics graphics;
 };
 DEFINE_REF(WindowManager)