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https://github.com/element-hq/synapse.git
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ac26cfac83
--- Summary: Synapse Twisted → asyncio Migration What's been built (Phases 0-7) — 10 new files, ~3200 lines, 96 tests Every Twisted component has an asyncio-native replacement ready: ┌──────────────────┬───────────────────────────────────────────────┬─────────────────────────────────────────────────────────┬───────────────────────────────────────────────┐ │ Component │ Twisted Original │ asyncio Replacement │ File │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ LoggingContext │ threading.local + Deferred callbacks │ ContextVar + asyncio Task │ synapse/logging/context.py (native functions) │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Async primitives │ ObservableDeferred, Linearizer, ReadWriteLock │ ObservableFuture, NativeLinearizer, NativeReadWriteLock │ synapse/util/async_helpers.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Cache │ DeferredCache │ FutureCache │ synapse/util/caches/future_cache.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Clock │ Clock (Twisted reactor) │ NativeClock (asyncio) │ synapse/util/clock.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Database │ adbapi.ConnectionPool │ NativeConnectionPool (ThreadPoolExecutor) │ synapse/storage/native_database.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ HTTP Client │ treq + Twisted Agent │ aiohttp.ClientSession │ synapse/http/native_client.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ HTTP Server │ JsonResource + Twisted Site │ NativeJsonResource + aiohttp.web │ synapse/http/native_server.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Replication │ LineOnlyReceiver (Twisted Protocol) │ asyncio.StreamReader/Writer │ synapse/replication/tcp/native_protocol.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Event loop │ ISynapseReactor │ ISynapseEventLoop │ synapse/types/__init__.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Test helper │ — │ FakeAsyncioLoop │ tests/async_helpers.py │ └──────────────────┴───────────────────────────────────────────────┴─────────────────────────────────────────────────────────┴───────────────────────────────────────────────┘ What's been wired in safely — 224 files changed, 0 regressions - MemoryReactor type hint → Any across 198 test files (cosmetic) - synapse/http/server.py — catches both Twisted and asyncio CancelledError - All 4530 tests still pass (minus the 2 pre-existing failures) What remains for the flag day The actual switchover requires rewriting 5 core files simultaneously, then running a migration script across ~500 files: 1. tests/unittest.py + tests/server.py — switch from twisted.trial.TestCase to unittest.TestCase, MemoryReactorClock to FakeAsyncioLoop, get_success() to asyncio run_until_complete() 2. synapse/logging/context.py — switch current_context() to ContextVar, make_deferred_yieldable() to async, run_in_background() to create_task() 3. synapse/util/async_helpers.py — rename Native* classes to canonical names, remove Deferred-based originals 4. Migration script — update all CancelledError, defer.*, Deferred imports across ~500 files 5. pyproject.toml — remove Twisted dependency This is an atomic change because: ContextVar can't coexist with Twisted's reactor callbacks, make_deferred_yieldable's signature change breaks all callers, and CancelledError is a different class between Twisted and asyncio.
67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2023 The Matrix.org Foundation C.I.C.
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from typing import Any as MemoryReactor # was: MemoryReactor from Twisted
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from synapse.events import EventBase
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from synapse.rest import admin, login, room
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from synapse.server import HomeServer
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from synapse.types import JsonDict
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from synapse.util.clock import Clock
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from tests.unittest import HomeserverTestCase
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class EventUnsignedAdditionTestCase(HomeserverTestCase):
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servlets = [
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room.register_servlets,
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admin.register_servlets,
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login.register_servlets,
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]
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def prepare(
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self, reactor: MemoryReactor, clock: Clock, homeserver: HomeServer
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) -> None:
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self._store = homeserver.get_datastores().main
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self._module_api = homeserver.get_module_api()
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self._account_data_mgr = self._module_api.account_data_manager
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def test_annotate_event(self) -> None:
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"""Test that we can annotate an event when we request it from the
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server.
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"""
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async def add_unsigned_event(event: EventBase) -> JsonDict:
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return {"test_key": event.event_id}
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self._module_api.register_add_extra_fields_to_unsigned_client_event_callbacks(
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add_field_to_unsigned_callback=add_unsigned_event
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)
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user_id = self.register_user("user", "password")
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token = self.login("user", "password")
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room_id = self.helper.create_room_as(user_id, tok=token)
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result = self.helper.send(room_id, "Hello!", tok=token)
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event_id = result["event_id"]
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event_json = self.helper.get_event(room_id, event_id, tok=token)
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self.assertEqual(event_json["unsigned"].get("test_key"), event_id)
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