forked from MirrorHub/synapse
Merge pull request #1030 from matrix-org/erikj/cache_contexts
Add concept of cache contexts
This commit is contained in:
Erik Johnston
GitHub
commit
e6784daf07
14 changed files with 458 additions and 87 deletions
|
|
@ -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"):
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -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(
|
||||
|
|
|
|||
|
|
@ -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
|
||||
):
|
||||
|
|
|
|||
|
|
@ -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):
|
||||
|
|
|
|||
|
|
@ -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',
|
||||
|
|
|
|||
|
|
@ -120,7 +120,7 @@ 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.
|
||||
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
|
||||
|
|
|
|||
|
|
@ -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",
|
||||
|
|
|
|||
|
|
@ -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:
|
||||
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.max_entries = None
|
||||
else:
|
||||
self.cache = OrderedDict()
|
||||
self.max_entries = max_entries
|
||||
|
||||
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)
|
||||
self.prefill(key, value, callback=callback)
|
||||
|
||||
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.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,
|
||||
)
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
||||
|
|
|
|||
|
|
@ -17,6 +17,8 @@
|
|||
from tests import unittest
|
||||
from twisted.internet import defer
|
||||
|
||||
from mock import Mock
|
||||
|
||||
from synapse.util.async import ObservableDeferred
|
||||
|
||||
from synapse.util.caches.descriptors import Cache, cached
|
||||
|
|
@ -72,7 +74,7 @@ class CacheTestCase(unittest.TestCase):
|
|||
cache.get(3)
|
||||
|
||||
def test_eviction_lru(self):
|
||||
cache = Cache("test", max_entries=2, lru=True)
|
||||
cache = Cache("test", max_entries=2)
|
||||
|
||||
cache.prefill(1, "one")
|
||||
cache.prefill(2, "two")
|
||||
|
|
@ -199,3 +201,115 @@ class CacheDecoratorTestCase(unittest.TestCase):
|
|||
|
||||
self.assertEquals(a.func("foo").result, d.result)
|
||||
self.assertEquals(callcount[0], 0)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_invalidate_context(self):
|
||||
callcount = [0]
|
||||
callcount2 = [0]
|
||||
|
||||
class A(object):
|
||||
@cached()
|
||||
def func(self, key):
|
||||
callcount[0] += 1
|
||||
return key
|
||||
|
||||
@cached(cache_context=True)
|
||||
def func2(self, key, cache_context):
|
||||
callcount2[0] += 1
|
||||
return self.func(key, on_invalidate=cache_context.invalidate)
|
||||
|
||||
a = A()
|
||||
yield a.func2("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 1)
|
||||
self.assertEquals(callcount2[0], 1)
|
||||
|
||||
a.func.invalidate(("foo",))
|
||||
yield a.func("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 1)
|
||||
|
||||
yield a.func2("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_eviction_context(self):
|
||||
callcount = [0]
|
||||
callcount2 = [0]
|
||||
|
||||
class A(object):
|
||||
@cached(max_entries=2)
|
||||
def func(self, key):
|
||||
callcount[0] += 1
|
||||
return key
|
||||
|
||||
@cached(cache_context=True)
|
||||
def func2(self, key, cache_context):
|
||||
callcount2[0] += 1
|
||||
return self.func(key, on_invalidate=cache_context.invalidate)
|
||||
|
||||
a = A()
|
||||
yield a.func2("foo")
|
||||
yield a.func2("foo2")
|
||||
|
||||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
yield a.func("foo3")
|
||||
|
||||
self.assertEquals(callcount[0], 3)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
yield a.func2("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 4)
|
||||
self.assertEquals(callcount2[0], 3)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_double_get(self):
|
||||
callcount = [0]
|
||||
callcount2 = [0]
|
||||
|
||||
class A(object):
|
||||
@cached()
|
||||
def func(self, key):
|
||||
callcount[0] += 1
|
||||
return key
|
||||
|
||||
@cached(cache_context=True)
|
||||
def func2(self, key, cache_context):
|
||||
callcount2[0] += 1
|
||||
return self.func(key, on_invalidate=cache_context.invalidate)
|
||||
|
||||
a = A()
|
||||
a.func2.cache.cache = Mock(wraps=a.func2.cache.cache)
|
||||
|
||||
yield a.func2("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 1)
|
||||
self.assertEquals(callcount2[0], 1)
|
||||
|
||||
a.func2.invalidate(("foo",))
|
||||
self.assertEquals(a.func2.cache.cache.pop.call_count, 1)
|
||||
|
||||
yield a.func2("foo")
|
||||
a.func2.invalidate(("foo",))
|
||||
self.assertEquals(a.func2.cache.cache.pop.call_count, 2)
|
||||
|
||||
self.assertEquals(callcount[0], 1)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
a.func.invalidate(("foo",))
|
||||
self.assertEquals(a.func2.cache.cache.pop.call_count, 3)
|
||||
yield a.func("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
yield a.func2("foo")
|
||||
|
||||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 3)
|
||||
|
|
|
|||
|
|
@ -19,6 +19,8 @@ from .. import unittest
|
|||
from synapse.util.caches.lrucache import LruCache
|
||||
from synapse.util.caches.treecache import TreeCache
|
||||
|
||||
from mock import Mock
|
||||
|
||||
|
||||
class LruCacheTestCase(unittest.TestCase):
|
||||
|
||||
|
|
@ -48,6 +50,8 @@ class LruCacheTestCase(unittest.TestCase):
|
|||
self.assertEquals(cache.get("key"), 1)
|
||||
self.assertEquals(cache.setdefault("key", 2), 1)
|
||||
self.assertEquals(cache.get("key"), 1)
|
||||
cache["key"] = 2 # Make sure overriding works.
|
||||
self.assertEquals(cache.get("key"), 2)
|
||||
|
||||
def test_pop(self):
|
||||
cache = LruCache(1)
|
||||
|
|
@ -79,3 +83,152 @@ class LruCacheTestCase(unittest.TestCase):
|
|||
cache["key"] = 1
|
||||
cache.clear()
|
||||
self.assertEquals(len(cache), 0)
|
||||
|
||||
|
||||
class LruCacheCallbacksTestCase(unittest.TestCase):
|
||||
def test_get(self):
|
||||
m = Mock()
|
||||
cache = LruCache(1)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", callback=m)
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", "value")
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.set("key", "value2")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
def test_multi_get(self):
|
||||
m = Mock()
|
||||
cache = LruCache(1)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", callback=m)
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", callback=m)
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.set("key", "value2")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
def test_set(self):
|
||||
m = Mock()
|
||||
cache = LruCache(1)
|
||||
|
||||
cache.set("key", "value", m)
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.set("key", "value2")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
def test_pop(self):
|
||||
m = Mock()
|
||||
cache = LruCache(1)
|
||||
|
||||
cache.set("key", "value", m)
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.pop("key")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
cache.set("key", "value")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
cache.pop("key")
|
||||
self.assertEquals(m.call_count, 1)
|
||||
|
||||
def test_del_multi(self):
|
||||
m1 = Mock()
|
||||
m2 = Mock()
|
||||
m3 = Mock()
|
||||
m4 = Mock()
|
||||
cache = LruCache(4, 2, cache_type=TreeCache)
|
||||
|
||||
cache.set(("a", "1"), "value", m1)
|
||||
cache.set(("a", "2"), "value", m2)
|
||||
cache.set(("b", "1"), "value", m3)
|
||||
cache.set(("b", "2"), "value", m4)
|
||||
|
||||
self.assertEquals(m1.call_count, 0)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
self.assertEquals(m4.call_count, 0)
|
||||
|
||||
cache.del_multi(("a",))
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 1)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
self.assertEquals(m4.call_count, 0)
|
||||
|
||||
def test_clear(self):
|
||||
m1 = Mock()
|
||||
m2 = Mock()
|
||||
cache = LruCache(5)
|
||||
|
||||
cache.set("key1", "value", m1)
|
||||
cache.set("key2", "value", m2)
|
||||
|
||||
self.assertEquals(m1.call_count, 0)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
|
||||
cache.clear()
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 1)
|
||||
|
||||
def test_eviction(self):
|
||||
m1 = Mock(name="m1")
|
||||
m2 = Mock(name="m2")
|
||||
m3 = Mock(name="m3")
|
||||
cache = LruCache(2)
|
||||
|
||||
cache.set("key1", "value", m1)
|
||||
cache.set("key2", "value", m2)
|
||||
|
||||
self.assertEquals(m1.call_count, 0)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
|
||||
cache.set("key3", "value", m3)
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
|
||||
cache.set("key3", "value")
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
|
||||
cache.get("key2")
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
|
||||
cache.set("key1", "value", m1)
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 1)
|
||||
|
|
|
|||
Loading…
Reference in a new issue