Merge pull request #2201 from matrix-org/erikj/store_device_cache

Cache check to see if device exists
This commit is contained in:
Erik Johnston 2017-05-08 16:23:04 +01:00 committed by GitHub
commit d3c3026496

View file

@ -18,7 +18,7 @@ import ujson as json
from twisted.internet import defer
from synapse.api.errors import StoreError
from ._base import SQLBaseStore
from ._base import SQLBaseStore, Cache
from synapse.util.caches.descriptors import cached, cachedList, cachedInlineCallbacks
@ -29,6 +29,14 @@ class DeviceStore(SQLBaseStore):
def __init__(self, hs):
super(DeviceStore, self).__init__(hs)
# Map of (user_id, device_id) -> bool. If there is an entry that implies
# the device exists.
self.device_id_exists_cache = Cache(
name="device_id_exists",
keylen=2,
max_entries=10000,
)
self._clock.looping_call(
self._prune_old_outbound_device_pokes, 60 * 60 * 1000
)
@ -54,6 +62,10 @@ class DeviceStore(SQLBaseStore):
defer.Deferred: boolean whether the device was inserted or an
existing device existed with that ID.
"""
key = (user_id, device_id)
if self.device_id_exists_cache.get(key, None):
defer.returnValue(False)
try:
inserted = yield self._simple_insert(
"devices",
@ -65,6 +77,7 @@ class DeviceStore(SQLBaseStore):
desc="store_device",
or_ignore=True,
)
self.device_id_exists_cache.prefill(key, True)
defer.returnValue(inserted)
except Exception as e:
logger.error("store_device with device_id=%s(%r) user_id=%s(%r)"
@ -93,6 +106,7 @@ class DeviceStore(SQLBaseStore):
desc="get_device",
)
@defer.inlineCallbacks
def delete_device(self, user_id, device_id):
"""Delete a device.
@ -102,12 +116,15 @@ class DeviceStore(SQLBaseStore):
Returns:
defer.Deferred
"""
return self._simple_delete_one(
yield self._simple_delete_one(
table="devices",
keyvalues={"user_id": user_id, "device_id": device_id},
desc="delete_device",
)
self.device_id_exists_cache.invalidate((user_id, device_id))
@defer.inlineCallbacks
def delete_devices(self, user_id, device_ids):
"""Deletes several devices.
@ -117,13 +134,15 @@ class DeviceStore(SQLBaseStore):
Returns:
defer.Deferred
"""
return self._simple_delete_many(
yield self._simple_delete_many(
table="devices",
column="device_id",
iterable=device_ids,
keyvalues={"user_id": user_id},
desc="delete_devices",
)
for device_id in device_ids:
self.device_id_exists_cache.invalidate((user_id, device_id))
def update_device(self, user_id, device_id, new_display_name=None):
"""Update a device.