diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/appservice/__init__.py | 9 | ||||
| -rw-r--r-- | synapse/appservice/api.py | 60 | ||||
| -rw-r--r-- | synapse/config/appservice.py | 10 | ||||
| -rw-r--r-- | synapse/handlers/appservice.py | 24 | ||||
| -rw-r--r-- | synapse/push/action_generator.py | 2 | ||||
| -rw-r--r-- | synapse/push/bulk_push_rule_evaluator.py | 41 | ||||
| -rw-r--r-- | synapse/rest/__init__.py | 2 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/thirdparty.py | 78 | ||||
| -rw-r--r-- | synapse/storage/_base.py | 2 | ||||
| -rw-r--r-- | synapse/storage/appservice.py | 7 | ||||
| -rw-r--r-- | synapse/storage/event_push_actions.py | 2 | ||||
| -rw-r--r-- | synapse/storage/push_rule.py | 60 | ||||
| -rw-r--r-- | synapse/storage/pusher.py | 2 | ||||
| -rw-r--r-- | synapse/storage/receipts.py | 2 | ||||
| -rw-r--r-- | synapse/storage/signatures.py | 2 | ||||
| -rw-r--r-- | synapse/storage/state.py | 4 | ||||
| -rw-r--r-- | synapse/types.py | 7 | ||||
| -rw-r--r-- | synapse/util/caches/descriptors.py | 117 | ||||
| -rw-r--r-- | synapse/util/caches/lrucache.py | 39 | ||||
| -rw-r--r-- | synapse/util/caches/treecache.py | 3 |
20 files changed, 384 insertions, 89 deletions
diff --git a/synapse/appservice/__init__.py b/synapse/appservice/__init__.py index b1b91d0a55..bde9b51b2e 100644 --- a/synapse/appservice/__init__.py +++ b/synapse/appservice/__init__.py @@ -81,13 +81,17 @@ class ApplicationService(object): NS_LIST = [NS_USERS, NS_ALIASES, NS_ROOMS] def __init__(self, token, url=None, namespaces=None, hs_token=None, - sender=None, id=None): + sender=None, id=None, protocols=None): self.token = token self.url = url self.hs_token = hs_token self.sender = sender self.namespaces = self._check_namespaces(namespaces) self.id = id + if protocols: + self.protocols = set(protocols) + else: + self.protocols = set() def _check_namespaces(self, namespaces): # Sanity check that it is of the form: @@ -219,6 +223,9 @@ class ApplicationService(object): or user_id == self.sender ) + def is_interested_in_protocol(self, protocol): + return protocol in self.protocols + def is_exclusive_alias(self, alias): return self._is_exclusive(ApplicationService.NS_ALIASES, alias) diff --git a/synapse/appservice/api.py b/synapse/appservice/api.py index 6da6a1b62e..066127b666 100644 --- a/synapse/appservice/api.py +++ b/synapse/appservice/api.py @@ -17,6 +17,7 @@ from twisted.internet import defer from synapse.api.errors import CodeMessageException from synapse.http.client import SimpleHttpClient from synapse.events.utils import serialize_event +from synapse.types import ThirdPartyEntityKind import logging import urllib @@ -24,6 +25,28 @@ import urllib logger = logging.getLogger(__name__) +def _is_valid_3pe_result(r, field): + if not isinstance(r, dict): + return False + + for k in (field, "protocol"): + if k not in r: + return False + if not isinstance(r[k], str): + return False + + if "fields" not in r: + return False + fields = r["fields"] + if not isinstance(fields, dict): + return False + for k in fields.keys(): + if not isinstance(fields[k], str): + return False + + return True + + class ApplicationServiceApi(SimpleHttpClient): """This class manages HS -> AS communications, including querying and pushing. @@ -72,6 +95,43 @@ class ApplicationServiceApi(SimpleHttpClient): defer.returnValue(False) @defer.inlineCallbacks + def query_3pe(self, service, kind, protocol, fields): + if kind == ThirdPartyEntityKind.USER: + uri = "%s/3pu/%s" % (service.url, urllib.quote(protocol)) + required_field = "userid" + elif kind == ThirdPartyEntityKind.LOCATION: + uri = "%s/3pl/%s" % (service.url, urllib.quote(protocol)) + required_field = "alias" + else: + raise ValueError( + "Unrecognised 'kind' argument %r to query_3pe()", kind + ) + + try: + response = yield self.get_json(uri, fields) + if not isinstance(response, list): + logger.warning( + "query_3pe to %s returned an invalid response %r", + uri, response + ) + defer.returnValue([]) + + ret = [] + for r in response: + if _is_valid_3pe_result(r, field=required_field): + ret.append(r) + else: + logger.warning( + "query_3pe to %s returned an invalid result %r", + uri, r + ) + + defer.returnValue(ret) + except Exception as ex: + logger.warning("query_3pe to %s threw exception %s", uri, ex) + defer.returnValue([]) + + @defer.inlineCallbacks def push_bulk(self, service, events, txn_id=None): events = self._serialize(events) diff --git a/synapse/config/appservice.py b/synapse/config/appservice.py index 70d28892c6..dfe43b0b4c 100644 --- a/synapse/config/appservice.py +++ b/synapse/config/appservice.py @@ -123,6 +123,15 @@ def _load_appservice(hostname, as_info, config_filename): raise ValueError( "Missing/bad type 'exclusive' key in %s", regex_obj ) + # protocols check + protocols = as_info.get("protocols") + if protocols: + # Because strings are lists in python + if isinstance(protocols, str) or not isinstance(protocols, list): + raise KeyError("Optional 'protocols' must be a list if present.") + for p in protocols: + if not isinstance(p, str): + raise KeyError("Bad value for 'protocols' item") return ApplicationService( token=as_info["as_token"], url=as_info["url"], @@ -130,4 +139,5 @@ def _load_appservice(hostname, as_info, config_filename): hs_token=as_info["hs_token"], sender=user_id, id=as_info["id"], + protocols=protocols, ) diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py index 6556dd1ae8..dd285452cd 100644 --- a/synapse/handlers/appservice.py +++ b/synapse/handlers/appservice.py @@ -160,6 +160,22 @@ class ApplicationServicesHandler(object): defer.returnValue(result) @defer.inlineCallbacks + def query_3pe(self, kind, protocol, fields): + services = yield self._get_services_for_3pn(protocol) + + results = yield defer.DeferredList([ + self.appservice_api.query_3pe(service, kind, protocol, fields) + for service in services + ], consumeErrors=True) + + ret = [] + for (success, result) in results: + if success: + ret.extend(result) + + defer.returnValue(ret) + + @defer.inlineCallbacks def _get_services_for_event(self, event): """Retrieve a list of application services interested in this event. @@ -188,6 +204,14 @@ class ApplicationServicesHandler(object): defer.returnValue(interested_list) @defer.inlineCallbacks + def _get_services_for_3pn(self, protocol): + services = yield self.store.get_app_services() + interested_list = [ + s for s in services if s.is_interested_in_protocol(protocol) + ] + defer.returnValue(interested_list) + + @defer.inlineCallbacks def _is_unknown_user(self, user_id): if not self.is_mine_id(user_id): # we don't know if they are unknown or not since it isn't one of our diff --git a/synapse/push/action_generator.py b/synapse/push/action_generator.py index b2c94bfaac..ed2ccc4dfb 100644 --- a/synapse/push/action_generator.py +++ b/synapse/push/action_generator.py @@ -40,7 +40,7 @@ class ActionGenerator: def handle_push_actions_for_event(self, event, context): with Measure(self.clock, "evaluator_for_event"): bulk_evaluator = yield evaluator_for_event( - event, self.hs, self.store, context.current_state + event, self.hs, self.store, context.state_group, context.current_state ) with Measure(self.clock, "action_for_event_by_user"): diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py index 756e5da513..004eded61f 100644 --- a/synapse/push/bulk_push_rule_evaluator.py +++ b/synapse/push/bulk_push_rule_evaluator.py @@ -36,35 +36,11 @@ def _get_rules(room_id, user_ids, store): @defer.inlineCallbacks -def evaluator_for_event(event, hs, store, current_state): - room_id = event.room_id - # We also will want to generate notifs for other people in the room so - # their unread countss are correct in the event stream, but to avoid - # generating them for bot / AS users etc, we only do so for people who've - # sent a read receipt into the room. - - local_users_in_room = set( - e.state_key for e in current_state.values() - if e.type == EventTypes.Member and e.membership == Membership.JOIN - and hs.is_mine_id(e.state_key) +def evaluator_for_event(event, hs, store, state_group, current_state): + rules_by_user = yield store.bulk_get_push_rules_for_room( + event.room_id, state_group, current_state ) - # users in the room who have pushers need to get push rules run because - # that's how their pushers work - if_users_with_pushers = yield store.get_if_users_have_pushers( - local_users_in_room - ) - user_ids = set( - uid for uid, have_pusher in if_users_with_pushers.items() if have_pusher - ) - - users_with_receipts = yield store.get_users_with_read_receipts_in_room(room_id) - - # any users with pushers must be ours: they have pushers - for uid in users_with_receipts: - if uid in local_users_in_room: - user_ids.add(uid) - # if this event is an invite event, we may need to run rules for the user # who's been invited, otherwise they won't get told they've been invited if event.type == 'm.room.member' and event.content['membership'] == 'invite': @@ -72,12 +48,12 @@ def evaluator_for_event(event, hs, store, current_state): if invited_user and hs.is_mine_id(invited_user): has_pusher = yield store.user_has_pusher(invited_user) if has_pusher: - user_ids.add(invited_user) - - rules_by_user = yield _get_rules(room_id, user_ids, store) + rules_by_user[invited_user] = yield store.get_push_rules_for_user( + invited_user + ) defer.returnValue(BulkPushRuleEvaluator( - room_id, rules_by_user, user_ids, store + event.room_id, rules_by_user, store )) @@ -90,10 +66,9 @@ class BulkPushRuleEvaluator: the same logic to run the actual rules, but could be optimised further (see https://matrix.org/jira/browse/SYN-562) """ - def __init__(self, room_id, rules_by_user, users_in_room, store): + def __init__(self, room_id, rules_by_user, store): self.room_id = room_id self.rules_by_user = rules_by_user - self.users_in_room = users_in_room self.store = store @defer.inlineCallbacks diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 7c23f5a4a8..326780405e 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -48,6 +48,7 @@ from synapse.rest.client.v2_alpha import ( openid, notifications, devices, + thirdparty, ) from synapse.http.server import JsonResource @@ -94,3 +95,4 @@ class ClientRestResource(JsonResource): openid.register_servlets(hs, client_resource) notifications.register_servlets(hs, client_resource) devices.register_servlets(hs, client_resource) + thirdparty.register_servlets(hs, client_resource) diff --git a/synapse/rest/client/v2_alpha/thirdparty.py b/synapse/rest/client/v2_alpha/thirdparty.py new file mode 100644 index 0000000000..9abca3a8ad --- /dev/null +++ b/synapse/rest/client/v2_alpha/thirdparty.py @@ -0,0 +1,78 @@ +# -*- coding: utf-8 -*- +# Copyright 2015, 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. + + +import logging + +from twisted.internet import defer + +from synapse.http.servlet import RestServlet +from synapse.types import ThirdPartyEntityKind +from ._base import client_v2_patterns + +logger = logging.getLogger(__name__) + + +class ThirdPartyUserServlet(RestServlet): + PATTERNS = client_v2_patterns("/3pu(/(?P<protocol>[^/]+))?$", + releases=()) + + def __init__(self, hs): + super(ThirdPartyUserServlet, self).__init__() + + self.auth = hs.get_auth() + self.appservice_handler = hs.get_application_service_handler() + + @defer.inlineCallbacks + def on_GET(self, request, protocol): + yield self.auth.get_user_by_req(request) + + fields = request.args + del fields["access_token"] + + results = yield self.appservice_handler.query_3pe( + ThirdPartyEntityKind.USER, protocol, fields + ) + + defer.returnValue((200, results)) + + +class ThirdPartyLocationServlet(RestServlet): + PATTERNS = client_v2_patterns("/3pl(/(?P<protocol>[^/]+))?$", + releases=()) + + def __init__(self, hs): + super(ThirdPartyLocationServlet, self).__init__() + + self.auth = hs.get_auth() + self.appservice_handler = hs.get_application_service_handler() + + @defer.inlineCallbacks + def on_GET(self, request, protocol): + yield self.auth.get_user_by_req(request) + + fields = request.args + del fields["access_token"] + + results = yield self.appservice_handler.query_3pe( + ThirdPartyEntityKind.LOCATION, protocol, fields + ) + + defer.returnValue((200, results)) + + +def register_servlets(hs, http_server): + ThirdPartyUserServlet(hs).register(http_server) + ThirdPartyLocationServlet(hs).register(http_server) diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 029f6612e6..49fa8614f2 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -166,7 +166,7 @@ class SQLBaseStore(object): self._txn_perf_counters = PerformanceCounters() self._get_event_counters = PerformanceCounters() - self._get_event_cache = Cache("*getEvent*", keylen=3, lru=True, + self._get_event_cache = Cache("*getEvent*", keylen=3, max_entries=hs.config.event_cache_size) self._state_group_cache = DictionaryCache( diff --git a/synapse/storage/appservice.py b/synapse/storage/appservice.py index b496b918b7..a854a87eab 100644 --- a/synapse/storage/appservice.py +++ b/synapse/storage/appservice.py @@ -366,8 +366,11 @@ class ApplicationServiceTransactionStore(SQLBaseStore): def get_new_events_for_appservice_txn(txn): sql = ( "SELECT e.stream_ordering, e.event_id" - " FROM events AS e, appservice_stream_position AS a" - " WHERE a.stream_ordering < e.stream_ordering AND e.stream_ordering <= ?" + " FROM events AS e" + " WHERE" + " (SELECT stream_ordering FROM appservice_stream_position)" + " < e.stream_ordering" + " AND e.stream_ordering <= ?" " ORDER BY e.stream_ordering ASC" " LIMIT ?" ) diff --git a/synapse/storage/event_push_actions.py b/synapse/storage/event_push_actions.py index 0ba0310c0d..eb15fb751b 100644 --- a/synapse/storage/event_push_actions.py +++ b/synapse/storage/event_push_actions.py @@ -56,7 +56,7 @@ class EventPushActionsStore(SQLBaseStore): ) self._simple_insert_many_txn(txn, "event_push_actions", values) - @cachedInlineCallbacks(num_args=3, lru=True, tree=True, max_entries=5000) + @cachedInlineCallbacks(num_args=3, tree=True, max_entries=5000) def get_unread_event_push_actions_by_room_for_user( self, room_id, user_id, last_read_event_id ): diff --git a/synapse/storage/push_rule.py b/synapse/storage/push_rule.py index 8183b7f1b0..78334a98cf 100644 --- a/synapse/storage/push_rule.py +++ b/synapse/storage/push_rule.py @@ -16,6 +16,7 @@ from ._base import SQLBaseStore from synapse.util.caches.descriptors import cachedInlineCallbacks, cachedList from synapse.push.baserules import list_with_base_rules +from synapse.api.constants import EventTypes, Membership from twisted.internet import defer import logging @@ -48,7 +49,7 @@ def _load_rules(rawrules, enabled_map): class PushRuleStore(SQLBaseStore): - @cachedInlineCallbacks(lru=True) + @cachedInlineCallbacks() def get_push_rules_for_user(self, user_id): rows = yield self._simple_select_list( table="push_rules", @@ -72,7 +73,7 @@ class PushRuleStore(SQLBaseStore): defer.returnValue(rules) - @cachedInlineCallbacks(lru=True) + @cachedInlineCallbacks() def get_push_rules_enabled_for_user(self, user_id): results = yield self._simple_select_list( table="push_rules_enable", @@ -123,6 +124,61 @@ class PushRuleStore(SQLBaseStore): defer.returnValue(results) + def bulk_get_push_rules_for_room(self, room_id, state_group, current_state): + if not state_group: + # If state_group is None it means it has yet to be assigned a + # state group, i.e. we need to make sure that calls with a state_group + # of None don't hit previous cached calls with a None state_group. + # To do this we set the state_group to a new object as object() != object() + state_group = object() + + return self._bulk_get_push_rules_for_room(room_id, state_group, current_state) + + @cachedInlineCallbacks(num_args=2, cache_context=True) + def _bulk_get_push_rules_for_room(self, room_id, state_group, current_state, + cache_context): + # We don't use `state_group`, its there so that we can cache based + # on it. However, its important that its never None, since two current_state's + # with a state_group of None are likely to be different. + # See bulk_get_push_rules_for_room for how we work around this. + assert state_group is not None + + # We also will want to generate notifs for other people in the room so + # their unread countss are correct in the event stream, but to avoid + # generating them for bot / AS users etc, we only do so for people who've + # sent a read receipt into the room. + local_users_in_room = set( + e.state_key for e in current_state.values() + if e.type == EventTypes.Member and e.membership == Membership.JOIN + and self.hs.is_mine_id(e.state_key) + ) + + # users in the room who have pushers need to get push rules run because + # that's how their pushers work + if_users_with_pushers = yield self.get_if_users_have_pushers( + local_users_in_room, on_invalidate=cache_context.invalidate, + ) + user_ids = set( + uid for uid, have_pusher in if_users_with_pushers.items() if have_pusher + ) + + users_with_receipts = yield self.get_users_with_read_receipts_in_room( + room_id, on_invalidate=cache_context.invalidate, + ) + + # any users with pushers must be ours: they have pushers + for uid in users_with_receipts: + if uid in local_users_in_room: + user_ids.add(uid) + + rules_by_user = yield self.bulk_get_push_rules( + user_ids, on_invalidate=cache_context.invalidate, + ) + + rules_by_user = {k: v for k, v in rules_by_user.items() if v is not None} + + defer.returnValue(rules_by_user) + @cachedList(cached_method_name="get_push_rules_enabled_for_user", list_name="user_ids", num_args=1, inlineCallbacks=True) def bulk_get_push_rules_enabled(self, user_ids): diff --git a/synapse/storage/pusher.py b/synapse/storage/pusher.py index a7d7c54d7e..8f5f8f24a9 100644 --- a/synapse/storage/pusher.py +++ b/synapse/storage/pusher.py @@ -135,7 +135,7 @@ class PusherStore(SQLBaseStore): "get_all_updated_pushers", get_all_updated_pushers_txn ) - @cachedInlineCallbacks(lru=True, num_args=1, max_entries=15000) + @cachedInlineCallbacks(num_args=1, max_entries=15000) def get_if_user_has_pusher(self, user_id): result = yield self._simple_select_many_batch( table='pushers', diff --git a/synapse/storage/receipts.py b/synapse/storage/receipts.py index 2c1df0e2b9..ccc3811e84 100644 --- a/synapse/storage/receipts.py +++ b/synapse/storage/receipts.py @@ -145,7 +145,7 @@ class ReceiptsStore(SQLBaseStore): defer.returnValue([ev for res in results.values() for ev in res]) - @cachedInlineCallbacks(num_args=3, max_entries=5000, lru=True, tree=True) + @cachedInlineCallbacks(num_args=3, max_entries=5000, tree=True) def get_linearized_receipts_for_room(self, room_id, to_key, from_key=None): """Get receipts for a single room for sending to clients. diff --git a/synapse/storage/signatures.py b/synapse/storage/signatures.py index ea6823f18d..e1dca927d7 100644 --- a/synapse/storage/signatures.py +++ b/synapse/storage/signatures.py @@ -25,7 +25,7 @@ from synapse.util.caches.descriptors import cached, cachedList class SignatureStore(SQLBaseStore): """Persistence for event signatures and hashes""" - @cached(lru=True) + @cached() def get_event_reference_hash(self, event_id): return self._get_event_reference_hashes_txn(event_id) diff --git a/synapse/storage/state.py b/synapse/storage/state.py index 5b743db67a..0e8fa93e1f 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -174,7 +174,7 @@ class StateStore(SQLBaseStore): return [r[0] for r in results] return self.runInteraction("get_current_state_for_key", f) - @cached(num_args=2, lru=True, max_entries=1000) + @cached(num_args=2, max_entries=1000) def _get_state_group_from_group(self, group, types): raise NotImplementedError() @@ -272,7 +272,7 @@ class StateStore(SQLBaseStore): state_map = yield self.get_state_for_events([event_id], types) defer.returnValue(state_map[event_id]) - @cached(num_args=2, lru=True, max_entries=10000) + @cached(num_args=2, max_entries=10000) def _get_state_group_for_event(self, room_id, event_id): return self._simple_select_one_onecol( table="event_to_state_groups", diff --git a/synapse/types.py b/synapse/types.py index 5349b0c450..fd17ecbbe0 100644 --- a/synapse/types.py +++ b/synapse/types.py @@ -269,3 +269,10 @@ class RoomStreamToken(namedtuple("_StreamToken", "topological stream")): return "t%d-%d" % (self.topological, self.stream) else: return "s%d" % (self.stream,) + + +# Some arbitrary constants used for internal API enumerations. Don't rely on +# exact values; always pass or compare symbolically +class ThirdPartyEntityKind(object): + USER = 'user' + LOCATION = 'location' diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py index f31dfb22b7..8dba61d49f 100644 --- a/synapse/util/caches/descriptors.py +++ b/synapse/util/caches/descriptors.py @@ -25,8 +25,7 @@ from synapse.util.logcontext import ( from . import DEBUG_CACHES, register_cache from twisted.internet import defer - -from collections import OrderedDict +from collections import namedtuple import os import functools @@ -54,16 +53,11 @@ class Cache(object): "metrics", ) - def __init__(self, name, max_entries=1000, keylen=1, lru=True, tree=False): - if lru: - cache_type = TreeCache if tree else dict - self.cache = LruCache( - max_size=max_entries, keylen=keylen, cache_type=cache_type - ) - self.max_entries = None - else: - self.cache = OrderedDict() - self.max_entries = max_entries + def __init__(self, name, max_entries=1000, keylen=1, tree=False): + cache_type = TreeCache if tree else dict + self.cache = LruCache( + max_size=max_entries, keylen=keylen, cache_type=cache_type + ) self.name = name self.keylen = keylen @@ -81,8 +75,8 @@ class Cache(object): "Cache objects can only be accessed from the main thread" ) - def get(self, key, default=_CacheSentinel): - val = self.cache.get(key, _CacheSentinel) + def get(self, key, default=_CacheSentinel, callback=None): + val = self.cache.get(key, _CacheSentinel, callback=callback) if val is not _CacheSentinel: self.metrics.inc_hits() return val @@ -94,19 +88,15 @@ class Cache(object): else: return default - def update(self, sequence, key, value): + def update(self, sequence, key, value, callback=None): self.check_thread() if self.sequence == sequence: # Only update the cache if the caches sequence number matches the # number that the cache had before the SELECT was started (SYN-369) - self.prefill(key, value) - - def prefill(self, key, value): - if self.max_entries is not None: - while len(self.cache) >= self.max_entries: - self.cache.popitem(last=False) + self.prefill(key, value, callback=callback) - self.cache[key] = value + def prefill(self, key, value, callback=None): + self.cache.set(key, value, callback=callback) def invalidate(self, key): self.check_thread() @@ -151,9 +141,21 @@ class CacheDescriptor(object): The wrapped function has another additional callable, called "prefill", which can be used to insert values into the cache specifically, without calling the calculation function. + + Cached functions can be "chained" (i.e. a cached function can call other cached + functions and get appropriately invalidated when they called caches are + invalidated) by adding a special "cache_context" argument to the function + and passing that as a kwarg to all caches called. For example:: + + @cachedInlineCallbacks(cache_context=True) + def foo(self, key, cache_context): + r1 = yield self.bar1(key, on_invalidate=cache_context.invalidate) + r2 = yield self.bar2(key, on_invalidate=cache_context.invalidate) + defer.returnValue(r1 + r2) + """ - def __init__(self, orig, max_entries=1000, num_args=1, lru=True, tree=False, - inlineCallbacks=False): + def __init__(self, orig, max_entries=1000, num_args=1, tree=False, + inlineCallbacks=False, cache_context=False): max_entries = int(max_entries * CACHE_SIZE_FACTOR) self.orig = orig @@ -165,15 +167,33 @@ class CacheDescriptor(object): self.max_entries = max_entries self.num_args = num_args - self.lru = lru self.tree = tree - self.arg_names = inspect.getargspec(orig).args[1:num_args + 1] + all_args = inspect.getargspec(orig) + self.arg_names = all_args.args[1:num_args + 1] + + if "cache_context" in all_args.args: + if not cache_context: + raise ValueError( + "Cannot have a 'cache_context' arg without setting" + " cache_context=True" + ) + try: + self.arg_names.remove("cache_context") + except ValueError: + pass + elif cache_context: + raise ValueError( + "Cannot have cache_context=True without having an arg" + " named `cache_context`" + ) + + self.add_cache_context = cache_context if len(self.arg_names) < self.num_args: raise Exception( "Not enough explicit positional arguments to key off of for %r." - " (@cached cannot key off of *args or **kwars)" + " (@cached cannot key off of *args or **kwargs)" % (orig.__name__,) ) @@ -182,16 +202,29 @@ class CacheDescriptor(object): name=self.orig.__name__, max_entries=self.max_entries, keylen=self.num_args, - lru=self.lru, tree=self.tree, ) @functools.wraps(self.orig) def wrapped(*args, **kwargs): + # If we're passed a cache_context then we'll want to call its invalidate() + # whenever we are invalidated + invalidate_callback = kwargs.pop("on_invalidate", None) + + # Add temp cache_context so inspect.getcallargs doesn't explode + if self.add_cache_context: + kwargs["cache_context"] = None + arg_dict = inspect.getcallargs(self.orig, obj, *args, **kwargs) cache_key = tuple(arg_dict[arg_nm] for arg_nm in self.arg_names) + + # Add our own `cache_context` to argument list if the wrapped function + # has asked for one + if self.add_cache_context: + kwargs["cache_context"] = _CacheContext(cache, cache_key) + try: - cached_result_d = cache.get(cache_key) + cached_result_d = cache.get(cache_key, callback=invalidate_callback) observer = cached_result_d.observe() if DEBUG_CACHES: @@ -228,7 +261,7 @@ class CacheDescriptor(object): ret.addErrback(onErr) ret = ObservableDeferred(ret, consumeErrors=True) - cache.update(sequence, cache_key, ret) + cache.update(sequence, cache_key, ret, callback=invalidate_callback) return preserve_context_over_deferred(ret.observe()) @@ -297,6 +330,10 @@ class CacheListDescriptor(object): @functools.wraps(self.orig) def wrapped(*args, **kwargs): + # If we're passed a cache_context then we'll want to call its invalidate() + # whenever we are invalidated + invalidate_callback = kwargs.pop("on_invalidate", None) + arg_dict = inspect.getcallargs(self.orig, obj, *args, **kwargs) keyargs = [arg_dict[arg_nm] for arg_nm in self.arg_names] list_args = arg_dict[self.list_name] @@ -311,7 +348,7 @@ class CacheListDescriptor(object): key[self.list_pos] = arg try: - res = cache.get(tuple(key)) + res = cache.get(tuple(key), callback=invalidate_callback) if not res.has_succeeded(): res = res.observe() res.addCallback(lambda r, arg: (arg, r), arg) @@ -345,7 +382,10 @@ class CacheListDescriptor(object): key = list(keyargs) key[self.list_pos] = arg - cache.update(sequence, tuple(key), observer) + cache.update( + sequence, tuple(key), observer, + callback=invalidate_callback + ) def invalidate(f, key): cache.invalidate(key) @@ -376,24 +416,29 @@ class CacheListDescriptor(object): return wrapped -def cached(max_entries=1000, num_args=1, lru=True, tree=False): +class _CacheContext(namedtuple("_CacheContext", ("cache", "key"))): + def invalidate(self): + self.cache.invalidate(self.key) + + +def cached(max_entries=1000, num_args=1, tree=False, cache_context=False): return lambda orig: CacheDescriptor( orig, max_entries=max_entries, num_args=num_args, - lru=lru, tree=tree, + cache_context=cache_context, ) -def cachedInlineCallbacks(max_entries=1000, num_args=1, lru=False, tree=False): +def cachedInlineCallbacks(max_entries=1000, num_args=1, tree=False, cache_context=False): return lambda orig: CacheDescriptor( orig, max_entries=max_entries, num_args=num_args, - lru=lru, tree=tree, inlineCallbacks=True, + cache_context=cache_context, ) diff --git a/synapse/util/caches/lrucache.py b/synapse/util/caches/lrucache.py index f9df445a8d..9c4c679175 100644 --- a/synapse/util/caches/lrucache.py +++ b/synapse/util/caches/lrucache.py @@ -30,13 +30,14 @@ def enumerate_leaves(node, depth): class _Node(object): - __slots__ = ["prev_node", "next_node", "key", "value"] + __slots__ = ["prev_node", "next_node", "key", "value", "callbacks"] - def __init__(self, prev_node, next_node, key, value): + def __init__(self, prev_node, next_node, key, value, callbacks=set()): self.prev_node = prev_node self.next_node = next_node self.key = key self.value = value + self.callbacks = callbacks class LruCache(object): @@ -44,6 +45,9 @@ class LruCache(object): Least-recently-used cache. Supports del_multi only if cache_type=TreeCache If cache_type=TreeCache, all keys must be tuples. + + Can also set callbacks on objects when getting/setting which are fired + when that key gets invalidated/evicted. """ def __init__(self, max_size, keylen=1, cache_type=dict): cache = cache_type() @@ -62,10 +66,10 @@ class LruCache(object): return inner - def add_node(key, value): + def add_node(key, value, callbacks=set()): prev_node = list_root next_node = prev_node.next_node - node = _Node(prev_node, next_node, key, value) + node = _Node(prev_node, next_node, key, value, callbacks) prev_node.next_node = node next_node.prev_node = node cache[key] = node @@ -88,23 +92,41 @@ class LruCache(object): prev_node.next_node = next_node next_node.prev_node = prev_node + for cb in node.callbacks: + cb() + node.callbacks.clear() + @synchronized - def cache_get(key, default=None): + def cache_get(key, default=None, callback=None): node = cache.get(key, None) if node is not None: move_node_to_front(node) + if callback: + node.callbacks.add(callback) return node.value else: return default @synchronized - def cache_set(key, value): + def cache_set(key, value, callback=None): node = cache.get(key, None) if node is not None: + if value != node.value: + for cb in node.callbacks: + cb() + node.callbacks.clear() + + if callback: + node.callbacks.add(callback) + move_node_to_front(node) node.value = value else: - add_node(key, value) + if callback: + callbacks = set([callback]) + else: + callbacks = set() + add_node(key, value, callbacks) if len(cache) > max_size: todelete = list_root.prev_node delete_node(todelete) @@ -148,6 +170,9 @@ class LruCache(object): def cache_clear(): list_root.next_node = list_root list_root.prev_node = list_root + for node in cache.values(): + for cb in node.callbacks: + cb() cache.clear() @synchronized diff --git a/synapse/util/caches/treecache.py b/synapse/util/caches/treecache.py index 03bc1401b7..c31585aea3 100644 --- a/synapse/util/caches/treecache.py +++ b/synapse/util/caches/treecache.py @@ -64,6 +64,9 @@ class TreeCache(object): self.size -= cnt return popped + def values(self): + return [e.value for e in self.root.values()] + def __len__(self): return self.size |