module.py 文件源码

def _handle_instance_request(self,
                               environ,
                               start_response,
                               url_map,
                               match,
                               request_id,
                               inst,
                               request_type):
    """Handles a request routed a particular Instance.

    Args:
      environ: An environ dict for the request as defined in PEP-333.
      start_response: A function with semantics defined in PEP-333.
      url_map: An appinfo.URLMap instance containing the configuration for the
          handler that matched.
      match: A re.MatchObject containing the result of the matched URL pattern.
      request_id: A unique string id associated with the request.
      inst: The instance.Instance to send the request to.
      request_type: The type of the request. See instance.*_REQUEST module
          constants.

    Returns:
      An iterable over strings containing the body of the HTTP response.
    """
    if request_type != instance.READY_REQUEST:
      with self._condition:
        self._num_outstanding_instance_requests += 1
        self._outstanding_request_history.append(
            (time.time(), self.num_outstanding_instance_requests))
    try:
      logging.debug('Dispatching request to %s', inst)
      return inst.handle(environ, start_response, url_map, match, request_id,
                         request_type)
    finally:
      with self._condition:
        if request_type != instance.READY_REQUEST:
          self._num_outstanding_instance_requests -= 1
        self._condition.notify()