l.cpp

class SuspendThread {
private:
	std::thread task;
	std::promise<void> Psuspend;
public:

	template<typename FN_, typename ... Arguments>
	SuspendThread(FN_ func, Arguments&& ... args)
	{
		auto fut_suspend = Psuspend.get_future();
		std::thread it(
			[func](std::future<void>&& fut, auto&&... args)
		{
			fut.wait();
			func(std::forward<Arguments>(args)...);
		}, std::move(fut_suspend), std::forward<Arguments>(args)...);
		task.swap(it);
	}

	~SuspendThread()
	{
		task.join();
	}
	void run() noexcept
	{
		Psuspend.set_value();
	}
};