server.py 文件源码

def serve_forever(self, poll_interval=0.1):
        """Fork the current process and wait for all children to finish."""
        if self.prefork is None or self.prefork <= 1:
            return super(_SporkMixIn, self).serve_forever(
                poll_interval=poll_interval)
        pids = []
        for dummy in range(self.prefork):
            pid = os.fork()
            if not pid:
                super(_SporkMixIn, self).serve_forever(
                    poll_interval=poll_interval)
                os._exit(0)
            else:
                self.log.info("Forked worker %s", pid)
                pids.append(pid)
        self.pids = pids
        for pid in self.pids:
            _eintr_retry(os.waitpid, pid, 0)