class Async::Task

def stop(later = false)
	if self.stopped?
		# If we already stopped this task... don't try to stop it again:
		return
	end
	
	if self.running?
		if self.current?
			if later
				Fiber.scheduler.push(Stop::Later.new(self))
			else
				raise Stop, "Stopping current task!"
			end
		elsif @fiber&.alive?
			begin
				Fiber.scheduler.raise(@fiber, Stop)
			rescue FiberError
				Fiber.scheduler.push(Stop::Later.new(self))
			end
		end
	else
		# We are not running, but children might be, so transition directly into stopped state:
		stop!
	end
end