class PusherSlaveStore(
SlavedEventStore,
SlavedPusherStore,
SlavedReceiptsStore,
SlavedAccountDataStore,
RoomStore,
):
update_pusher_last_stream_ordering_and_success = __func__(
DataStore.update_pusher_last_stream_ordering_and_success
)
update_pusher_failing_since = __func__(DataStore.update_pusher_failing_since)
update_pusher_last_stream_ordering = __func__(
DataStore.update_pusher_last_stream_ordering
)
get_throttle_params_by_room = __func__(DataStore.get_throttle_params_by_room)
set_throttle_params = __func__(DataStore.set_throttle_params)
get_time_of_last_push_action_before = __func__(
DataStore.get_time_of_last_push_action_before
)
get_profile_displayname = __func__(DataStore.get_profile_displayname)
class GenericWorkerPresence(object):
def __init__(self, hs):
self.hs = hs
self.is_mine_id = hs.is_mine_id
self.http_client = hs.get_simple_http_client()
self.store = hs.get_datastore()
self.user_to_num_current_syncs = {}
self.clock = hs.get_clock()
self.notifier = hs.get_notifier()
active_presence = self.store.take_presence_startup_info()
self.user_to_current_state = {
state.user_id: state
for state in active_presence
}
# user_id -> last_sync_ms. Lists the users that have stopped syncing
# but we haven't notified the master of that yet
self.users_going_offline = {}
self._send_stop_syncing_loop = self.clock.looping_call(
self.send_stop_syncing, UPDATE_SYNCING_USERS_MS)
self.process_id = random_string(16)
logger.info("Presence process_id is %r", self.process_id)
def send_user_sync(self, user_id, is_syncing, last_sync_ms):
if self.hs.config.use_presence:
self.hs.get_tcp_replication().send_user_sync(
user_id, is_syncing, last_sync_ms)
def mark_as_coming_online(self, user_id):
"""A user has started syncing. Send a UserSync to the master, unless they
had recently stopped syncing.
Args:
user_id (str)
"""
going_offline = self.users_going_offline.pop(user_id, None)
if not going_offline:
# Safe to skip because we haven't yet told the master they were offline
self.send_user_sync(user_id, True, self.clock.time_msec())
def mark_as_going_offline(self, user_id):
"""A user has stopped syncing. We wait before notifying the master as
its likely they'll come back soon. This allows us to avoid sending
a stopped syncing immediately followed by a started syncing notification
to the master
Args:
user_id (str)
"""
self.users_going_offline[user_id] = self.clock.time_msec()
def send_stop_syncing(self):
"""Check if there are any users who have stopped syncing a while ago
and haven't come back yet. If there are poke the master about them.
"""
now = self.clock.time_msec()
for user_id, last_sync_ms in list(self.users_going_offline.items()):
if now - last_sync_ms > UPDATE_SYNCING_USERS_MS:
self.users_going_offline.pop(user_id, None)
self.send_user_sync(user_id, False, last_sync_ms)
def set_state(self, user, state, ignore_status_msg=False):
# TODO Hows this supposed to work?
return defer.succeed(None)
get_states = __func__(PresenceHandler.get_states)
get_state = __func__(PresenceHandler.get_state)
current_state_for_users = __func__(PresenceHandler.current_state_for_users)
def user_syncing(self, user_id, affect_presence):
if affect_presence:
curr_sync = self.user_to_num_current_syncs.get(user_id, 0)
self.user_to_num_current_syncs[user_id] = curr_sync + 1
# If we went from no in flight sync to some, notify replication
if self.user_to_num_current_syncs[user_id] == 1:
self.mark_as_coming_online(user_id)
def _end():
# We check that the user_id is in user_to_num_current_syncs because
# user_to_num_current_syncs may have been cleared if we are
# shutting down.
if affect_presence and user_id in self.user_to_num_current_syncs:
self.user_to_num_current_syncs[user_id] -= 1
# If we went from one in flight sync to non, notify replication
if self.user_to_num_current_syncs[user_id] == 0:
self.mark_as_going_offline(user_id)
@contextlib.contextmanager
def _user_syncing():
try:
yield
finally:
_end()
return defer.succeed(_user_syncing())
@defer.inlineCallbacks
def notify_from_replication(self, states, stream_id):
parties = yield get_interested_parties(self.store, states)
room_ids_to_states, users_to_states = parties
self.notifier.on_new_event(
"presence_key",
stream_id,
rooms=room_ids_to_states.keys(),
users=users_to_states.keys(),
)
@defer.inlineCallbacks
def process_replication_rows(self, token, rows):
states = [
UserPresenceState(
row.user_id,
row.state,
row.last_active_ts,
row.last_federation_update_ts,
row.last_user_sync_ts,
row.status_msg,
row.currently_active,
) for row in rows
]
for state in states:
self.user_to_current_state[state.user_id] = state
stream_id = token
yield self.notify_from_replication(states, stream_id)
def get_currently_syncing_users(self):
if self.hs.config.use_presence:
return [
user_id
for user_id, count in self.user_to_num_current_syncs.items()
if count > 0
]
else:
return set()
