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Ensure we never miss any presence updates

This commit is contained in:
Erik Johnston 2015-04-28 17:24:24 +01:00
parent 0126ef7f3c
commit 1783c7ca92
1 changed files with 7 additions and 1 deletions
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8
synapse/handlers/presence.py
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@ -858,6 +858,9 @@ class PresenceEventSource(object):
presence = self.hs.get_handlers().presence_handler presence = self.hs.get_handlers().presence_handler
cachemap = presence._user_cachemap cachemap = presence._user_cachemap
max_serial = presence._user_cachemap_latest_serial
clock = self.clock clock = self.clock
latest_serial = 0 latest_serial = 0
@ -866,7 +869,7 @@ class PresenceEventSource(object):
for observed_user in cachemap.keys(): for observed_user in cachemap.keys():
cached = cachemap[observed_user] cached = cachemap[observed_user]
if cached.serial <= from_key: if cached.serial <= from_key or cached.serial > max_serial:
continue continue
if not (yield self.is_visible(observer_user, observed_user)): if not (yield self.is_visible(observer_user, observed_user)):
@ -881,6 +884,9 @@ class PresenceEventSource(object):
if serial < from_key: if serial < from_key:
break break
if serial > max_serial:
continue
latest_serial = max(latest_serial, serial) latest_serial = max(latest_serial, serial)
for u in user_ids: for u in user_ids:
updates.append({ updates.append({