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Merge pull request #2201 from matrix-org/erikj/store_device_cache
Cache check to see if device exists
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commit
d3c3026496
@ -18,7 +18,7 @@ import ujson as json
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from twisted.internet import defer
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from synapse.api.errors import StoreError
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from ._base import SQLBaseStore
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from ._base import SQLBaseStore, Cache
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from synapse.util.caches.descriptors import cached, cachedList, cachedInlineCallbacks
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@ -29,6 +29,14 @@ class DeviceStore(SQLBaseStore):
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def __init__(self, hs):
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super(DeviceStore, self).__init__(hs)
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# Map of (user_id, device_id) -> bool. If there is an entry that implies
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# the device exists.
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self.device_id_exists_cache = Cache(
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name="device_id_exists",
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keylen=2,
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max_entries=10000,
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)
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self._clock.looping_call(
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self._prune_old_outbound_device_pokes, 60 * 60 * 1000
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)
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@ -54,6 +62,10 @@ class DeviceStore(SQLBaseStore):
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defer.Deferred: boolean whether the device was inserted or an
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existing device existed with that ID.
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"""
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key = (user_id, device_id)
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if self.device_id_exists_cache.get(key, None):
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defer.returnValue(False)
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try:
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inserted = yield self._simple_insert(
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"devices",
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@ -65,6 +77,7 @@ class DeviceStore(SQLBaseStore):
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desc="store_device",
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or_ignore=True,
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)
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self.device_id_exists_cache.prefill(key, True)
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defer.returnValue(inserted)
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except Exception as e:
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logger.error("store_device with device_id=%s(%r) user_id=%s(%r)"
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@ -93,6 +106,7 @@ class DeviceStore(SQLBaseStore):
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desc="get_device",
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)
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@defer.inlineCallbacks
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def delete_device(self, user_id, device_id):
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"""Delete a device.
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@ -102,12 +116,15 @@ class DeviceStore(SQLBaseStore):
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Returns:
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defer.Deferred
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"""
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return self._simple_delete_one(
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yield self._simple_delete_one(
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table="devices",
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keyvalues={"user_id": user_id, "device_id": device_id},
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desc="delete_device",
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)
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self.device_id_exists_cache.invalidate((user_id, device_id))
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@defer.inlineCallbacks
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def delete_devices(self, user_id, device_ids):
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"""Deletes several devices.
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@ -117,13 +134,15 @@ class DeviceStore(SQLBaseStore):
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Returns:
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defer.Deferred
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"""
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return self._simple_delete_many(
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yield self._simple_delete_many(
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table="devices",
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column="device_id",
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iterable=device_ids,
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keyvalues={"user_id": user_id},
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desc="delete_devices",
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)
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for device_id in device_ids:
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self.device_id_exists_cache.invalidate((user_id, device_id))
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def update_device(self, user_id, device_id, new_display_name=None):
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"""Update a device.
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