__init__.py 文件源码

def refresh(self):
        assert greenlet.getcurrent().parent is not None,\
            "Should be on child greenlet"

        try:
            self.rsc.refresh()
        except pymongo.errors.AutoReconnect:
            pass
        # RSC has been collected or there
        # was an unexpected error.
        except:
            return
        finally:
            # Switch to greenlets blocked in wait_for_refresh().
            self.refreshed.set()

        self.timeout_obj = self.io_loop.add_timeout(
            time.time() + self._refresh_interval, self.async_refresh)