mirror of
https://github.com/element-hq/synapse.git
synced 2024-11-27 12:08:32 +03:00
4fad8efbfb
1. make it not blow out the stack when there are more than 50 things waiting for a lock. Fixes https://github.com/matrix-org/synapse/issues/2505. 2. Make it not mess up the log contexts.
64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2016 OpenMarket Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
from synapse.util import async, logcontext
|
|
from tests import unittest
|
|
|
|
from twisted.internet import defer
|
|
|
|
from synapse.util.async import Linearizer
|
|
|
|
|
|
class LinearizerTestCase(unittest.TestCase):
|
|
|
|
@defer.inlineCallbacks
|
|
def test_linearizer(self):
|
|
linearizer = Linearizer()
|
|
|
|
key = object()
|
|
|
|
d1 = linearizer.queue(key)
|
|
cm1 = yield d1
|
|
|
|
d2 = linearizer.queue(key)
|
|
self.assertFalse(d2.called)
|
|
|
|
with cm1:
|
|
self.assertFalse(d2.called)
|
|
|
|
with (yield d2):
|
|
pass
|
|
|
|
def test_lots_of_queued_things(self):
|
|
# we have one slow thing, and lots of fast things queued up behind it.
|
|
# it should *not* explode the stack.
|
|
linearizer = Linearizer()
|
|
|
|
@defer.inlineCallbacks
|
|
def func(i, sleep=False):
|
|
with logcontext.LoggingContext("func(%s)" % i) as lc:
|
|
with (yield linearizer.queue("")):
|
|
self.assertEqual(
|
|
logcontext.LoggingContext.current_context(), lc)
|
|
if sleep:
|
|
yield async.sleep(0)
|
|
|
|
self.assertEqual(
|
|
logcontext.LoggingContext.current_context(), lc)
|
|
|
|
func(0, sleep=True)
|
|
for i in xrange(1, 100):
|
|
func(i)
|
|
|
|
return func(1000)
|