runserver.py 文件源码

def init_workers(self, tornado_app):
        """
        For Tornado's application *tornado_app* create workers instances
        and add them into list of the management command processes.
        """
        interface = tornado_app.settings['interface']
        name, processes, host, port = (
            interface.name, interface.processes,
            interface.host, interface.port)
        if processes <= 0:
            processes = tornado.process.cpu_count()

        self.logger.info(
            "Init %d worker(s) for interface '%s' (%s:%d)",
            processes, name, host, port)

        sockets = tornado.netutil.bind_sockets(port, host)
        for dummy_i in six.moves.range(processes):
            self.workers.append(
                Worker(
                    name=name, factory=get_worker_instance,
                    args=(tornado_app, sockets, self.pid)
                )
            )