mirror of
https://mau.dev/maunium/synapse.git
synced 2024-08-29 21:52:26 +00:00
114 lines
4.0 KiB
Python
114 lines
4.0 KiB
Python
# Copyright 2021 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# 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.server import HomeServer
|
|
from synapse.storage.databases.main.lock import _LOCK_TIMEOUT_MS
|
|
|
|
from tests import unittest
|
|
|
|
|
|
class LockTestCase(unittest.HomeserverTestCase):
|
|
def prepare(self, reactor, clock, hs: HomeServer):
|
|
self.store = hs.get_datastore()
|
|
|
|
def test_simple_lock(self):
|
|
"""Test that we can take out a lock and that while we hold it nobody
|
|
else can take it out.
|
|
"""
|
|
# First to acquire this lock, so it should complete
|
|
lock = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock)
|
|
|
|
# Enter the context manager
|
|
self.get_success(lock.__aenter__())
|
|
|
|
# Attempting to acquire the lock again fails.
|
|
lock2 = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNone(lock2)
|
|
|
|
# Calling `is_still_valid` reports true.
|
|
self.assertTrue(self.get_success(lock.is_still_valid()))
|
|
|
|
# Drop the lock
|
|
self.get_success(lock.__aexit__(None, None, None))
|
|
|
|
# We can now acquire the lock again.
|
|
lock3 = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock3)
|
|
self.get_success(lock3.__aenter__())
|
|
self.get_success(lock3.__aexit__(None, None, None))
|
|
|
|
def test_maintain_lock(self):
|
|
"""Test that we don't time out locks while they're still active"""
|
|
|
|
lock = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock)
|
|
|
|
self.get_success(lock.__aenter__())
|
|
|
|
# Wait for ages with the lock, we should not be able to get the lock.
|
|
self.reactor.advance(5 * _LOCK_TIMEOUT_MS / 1000)
|
|
|
|
lock2 = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNone(lock2)
|
|
|
|
self.get_success(lock.__aexit__(None, None, None))
|
|
|
|
def test_timeout_lock(self):
|
|
"""Test that we time out locks if they're not updated for ages"""
|
|
|
|
lock = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock)
|
|
|
|
self.get_success(lock.__aenter__())
|
|
|
|
# We simulate the process getting stuck by cancelling the looping call
|
|
# that keeps the lock active.
|
|
lock._looping_call.stop()
|
|
|
|
# Wait for the lock to timeout.
|
|
self.reactor.advance(2 * _LOCK_TIMEOUT_MS / 1000)
|
|
|
|
lock2 = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock2)
|
|
|
|
self.assertFalse(self.get_success(lock.is_still_valid()))
|
|
|
|
def test_drop(self):
|
|
"""Test that dropping the context manager means we stop renewing the lock"""
|
|
|
|
lock = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock)
|
|
|
|
del lock
|
|
|
|
# Wait for the lock to timeout.
|
|
self.reactor.advance(2 * _LOCK_TIMEOUT_MS / 1000)
|
|
|
|
lock2 = self.get_success(self.store.try_acquire_lock("name", "key"))
|
|
self.assertIsNotNone(lock2)
|
|
|
|
def test_shutdown(self):
|
|
"""Test that shutting down Synapse releases the locks"""
|
|
# Acquire two locks
|
|
lock = self.get_success(self.store.try_acquire_lock("name", "key1"))
|
|
self.assertIsNotNone(lock)
|
|
lock2 = self.get_success(self.store.try_acquire_lock("name", "key2"))
|
|
self.assertIsNotNone(lock2)
|
|
|
|
# Now call the shutdown code
|
|
self.get_success(self.store._on_shutdown())
|
|
|
|
self.assertEqual(self.store._live_tokens, {})
|