mirror of https://github.com/grpc/grpc.git
Merge pull request #9776 from apolcyn/add_http2_flow_control_interop_tests
add http2 testing interop server uses small data frames and paddingpull/10205/merge
apolcyn
8 years ago
committed by
GitHub
commit
5c8a47e86d
14 changed files with 307 additions and 77 deletions
@ -0,0 +1,94 @@ |
||||
# Copyright 2016, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
import http2_base_server |
||||
import logging |
||||
import messages_pb2 |
||||
|
||||
# Set the number of padding bytes per data frame to be very large |
||||
# relative to the number of data bytes for each data frame sent. |
||||
_LARGE_PADDING_LENGTH = 255 |
||||
_SMALL_READ_CHUNK_SIZE = 5 |
||||
|
||||
class TestDataFramePadding(object): |
||||
""" |
||||
In response to an incoming request, this test sends headers, followed by |
||||
data, followed by a reset stream frame. Client asserts that the RPC failed. |
||||
Client needs to deliver the complete message to the application layer. |
||||
""" |
||||
def __init__(self, use_padding=True): |
||||
self._base_server = http2_base_server.H2ProtocolBaseServer() |
||||
self._base_server._handlers['DataReceived'] = self.on_data_received |
||||
self._base_server._handlers['WindowUpdated'] = self.on_window_update |
||||
self._base_server._handlers['RequestReceived'] = self.on_request_received |
||||
|
||||
# _total_updates maps stream ids to total flow control updates received |
||||
self._total_updates = {} |
||||
# zero window updates so far for connection window (stream id '0') |
||||
self._total_updates[0] = 0 |
||||
self._read_chunk_size = _SMALL_READ_CHUNK_SIZE |
||||
|
||||
if use_padding: |
||||
self._pad_length = _LARGE_PADDING_LENGTH |
||||
else: |
||||
self._pad_length = None |
||||
|
||||
def get_base_server(self): |
||||
return self._base_server |
||||
|
||||
def on_data_received(self, event): |
||||
logging.info('on data received. Stream id: %d. Data length: %d' % (event.stream_id, len(event.data))) |
||||
self._base_server.on_data_received_default(event) |
||||
if len(event.data) == 0: |
||||
return |
||||
sr = self._base_server.parse_received_data(event.stream_id) |
||||
stream_bytes = '' |
||||
# Check if full grpc msg has been read into the recv buffer yet |
||||
if sr: |
||||
response_data = self._base_server.default_response_data(sr.response_size) |
||||
logging.info('Stream id: %d. total resp size: %d' % (event.stream_id, len(response_data))) |
||||
# Begin sending the response. Add ``self._pad_length`` padding to each |
||||
# data frame and split the whole message into data frames each carrying |
||||
# only self._read_chunk_size of data. |
||||
# The purpose is to have the majority of the data frame response bytes |
||||
# be padding bytes, since ``self._pad_length`` >> ``self._read_chunk_size``. |
||||
self._base_server.setup_send(response_data , event.stream_id, pad_length=self._pad_length, read_chunk_size=self._read_chunk_size) |
||||
|
||||
def on_request_received(self, event): |
||||
self._base_server.on_request_received_default(event) |
||||
logging.info('on request received. Stream id: %s.' % event.stream_id) |
||||
self._total_updates[event.stream_id] = 0 |
||||
|
||||
# Log debug info and try to resume sending on all currently active streams. |
||||
def on_window_update(self, event): |
||||
logging.info('on window update. Stream id: %s. Delta: %s' % (event.stream_id, event.delta)) |
||||
self._total_updates[event.stream_id] += event.delta |
||||
total = self._total_updates[event.stream_id] |
||||
logging.info('... - total updates for stream %d : %d' % (event.stream_id, total)) |
||||
self._base_server.on_window_update_default(event, pad_length=self._pad_length, read_chunk_size=self._read_chunk_size) |
||||
Loading…
Reference in new issue