service.py 文件源码

def stop(self):
        """Terminate child processes and wait on each."""
        self.running = False

        LOG.debug("Stop services.")
        for service in set(
                [wrap.service for wrap in self.children.values()]):
            service.stop()

        LOG.debug("Killing children.")
        for pid in self.children:
            try:
                os.kill(pid, signal.SIGTERM)
            except OSError as exc:
                if exc.errno != errno.ESRCH:
                    raise

        # Wait for children to die
        if self.children:
            LOG.info(_LI('Waiting on %d children to exit'), len(self.children))
            while self.children:
                self._wait_child()