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Revert "Improvement to performance of presence event stream handling"

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This commit is contained in:
Mark Haines 2015-05-12 15:44:21 +01:00
parent ec07dba29e
commit d7b3ac46f8
1 changed files with 6 additions and 20 deletions
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26
synapse/handlers/presence.py
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@ -26,7 +26,6 @@ import synapse.metrics
from ._base import BaseHandler
import logging
from collections import OrderedDict
logger = logging.getLogger(__name__)
@ -144,7 +143,7 @@ class PresenceHandler(BaseHandler):
self._remote_offline_serials = []
# map any user to a UserPresenceCache
self._user_cachemap = OrderedDict() # keep them sorted by serial
self._user_cachemap = {}
self._user_cachemap_latest_serial = 0
metrics.register_callback(
@ -166,14 +165,6 @@ class PresenceHandler(BaseHandler):
else:
return UserPresenceCache()
def _bump_serial(self, user=None):
self._user_cachemap_latest_serial += 1
if user:
# Move to end
cache = self._user_cachemap.pop(user)
self._user_cachemap[user] = cache
def registered_user(self, user):
return self.store.create_presence(user.localpart)
@ -309,7 +300,7 @@ class PresenceHandler(BaseHandler):
def changed_presencelike_data(self, user, state):
statuscache = self._get_or_make_usercache(user)
self._bump_serial(user=user)
self._user_cachemap_latest_serial += 1
statuscache.update(state, serial=self._user_cachemap_latest_serial)
return self.push_presence(user, statuscache=statuscache)
@ -331,7 +322,7 @@ class PresenceHandler(BaseHandler):
# No actual update but we need to bump the serial anyway for the
# event source
self._bump_serial()
self._user_cachemap_latest_serial += 1
statuscache.update({}, serial=self._user_cachemap_latest_serial)
self.push_update_to_local_and_remote(
@ -713,7 +704,7 @@ class PresenceHandler(BaseHandler):
statuscache = self._get_or_make_usercache(user)
self._bump_serial(user=user)
self._user_cachemap_latest_serial += 1
statuscache.update(state, serial=self._user_cachemap_latest_serial)
if not observers and not room_ids:
@ -873,15 +864,10 @@ class PresenceEventSource(object):
updates = []
# TODO(paul): use a DeferredList ? How to limit concurrency.
for observed_user in reversed(cachemap.keys()):
for observed_user in cachemap.keys():
cached = cachemap[observed_user]
# Since this is ordered in descending order of serial, we can just
# stop once we've seen enough
if cached.serial <= from_key:
break
if cached.serial > max_serial:
if cached.serial <= from_key or cached.serial > max_serial:
continue
if not (yield self.is_visible(observer_user, observed_user)):