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Pull out event ids rather than full events for state

This commit is contained in:
Erik Johnston 2016-08-25 13:28:31 +01:00
parent eb6a7cf3f4
commit 17f4f14df7
4 changed files with 119 additions and 55 deletions
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8
synapse/events/snapshot.py
View File

@ -15,6 +15,14 @@
class EventContext(object):
def _set_current_state(self, current_state):
if current_state is not None:
self.current_state_ids = {k: e.event_id for k, e in current_state.items()}
else:
self.current_state_ids = None
self._current_state = current_state
current_state = property(lambda self: self._current_state, _set_current_state)
def __init__(self, current_state=None):
self.current_state = current_state

12
synapse/handlers/federation.py
View File

@ -560,6 +560,18 @@ class FederationHandler(BaseHandler):
]))
states = dict(zip(event_ids, [s[1] for s in states]))
state_map = yield self.store.get_events(
[e_id for ids in states.values() for e_id in ids],
get_prev_content=False
)
states = {
key: {
k: state_map[e_id]
for k, e_id in state_dict.items()
if e_id in state_map
} for key, state_dict in states.items()
}
for e_id, _ in sorted_extremeties_tuple:
likely_domains = get_domains_from_state(states[e_id])

99
synapse/state.py
View File

@ -93,8 +93,12 @@ class StateHandler(object):
if not latest_event_ids:
latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
res = yield self.resolve_state_groups(room_id, latest_event_ids)
state = res[1]
_, state = yield self.resolve_state_groups(room_id, latest_event_ids)
state_map = yield self.store.get_events(state.values(), get_prev_content=False)
state = {
key: state_map[e_id] for key, e_id in state.items() if e_id in state_map
}
if event_type:
defer.returnValue(state.get((event_type, state_key)))
@ -159,7 +163,15 @@ class StateHandler(object):
event.room_id, [e for e, _ in event.prev_events],
)
group, curr_state, prev_state = ret
group, curr_state = ret
state_map = yield self.store.get_events(
curr_state.values(),
get_prev_content=False
)
curr_state = {
key: state_map[e_id] for key, e_id in curr_state.items() if e_id in state_map
}
context.current_state = curr_state
context.state_group = group if not event.is_state() else None
@ -170,7 +182,7 @@ class StateHandler(object):
replaces = context.current_state[key]
event.unsigned["replaces_state"] = replaces.event_id
context.prev_state_events = prev_state
context.prev_state_events = []
defer.returnValue(context)
@defer.inlineCallbacks
@ -187,72 +199,83 @@ class StateHandler(object):
"""
logger.debug("resolve_state_groups event_ids %s", event_ids)
state_groups = yield self.store.get_state_groups(
state_groups_ids = yield self.store.get_state_groups_ids(
room_id, event_ids
)
logger.debug(
"resolve_state_groups state_groups %s",
state_groups.keys()
state_groups_ids.keys()
)
group_names = frozenset(state_groups.keys())
group_names = frozenset(state_groups_ids.keys())
if len(group_names) == 1:
name, state_list = state_groups.items().pop()
state = {
(e.type, e.state_key): e
for e in state_list
}
prev_state = state.get((event_type, state_key), None)
if prev_state:
prev_state = prev_state.event_id
prev_states = [prev_state]
else:
prev_states = []
name, state_list = state_groups_ids.items().pop()
defer.returnValue((name, state, prev_states))
defer.returnValue((name, state_list,))
if self._state_cache is not None:
cache = self._state_cache.get(group_names, None)
if cache:
cache.ts = self.clock.time_msec()
event_dict = yield self.store.get_events(cache.state.values())
state = {(e.type, e.state_key): e for e in event_dict.values()}
prev_state = state.get((event_type, state_key), None)
if prev_state:
prev_state = prev_state.event_id
prev_states = [prev_state]
else:
prev_states = []
defer.returnValue(
(cache.state_group, state, prev_states)
(cache.state_group, cache.state,)
)
logger.info("Resolving state for %s with %d groups", room_id, len(state_groups))
new_state, prev_states = self._resolve_events(
state_groups.values(), event_type, state_key
logger.info(
"Resolving state for %s with %d groups", room_id, len(state_groups_ids)
)
state = {}
for st in state_groups_ids.values():
for key, e_id in st.items():
state.setdefault(key, set()).add(e_id)
conflicted_state = {
k: list(v)
for k, v in state.items()
if len(v) > 1
}
if conflicted_state:
logger.info("Resolving conflicted state for %r", room_id)
state_map = yield self.store.get_events(
[e_id for st in state_groups_ids.values() for e_id in st.values()],
get_prev_content=False
)
state_sets = [
[state_map[e_id] for key, e_id in st.items() if e_id in state_map]
for st in state_groups_ids.values()
]
new_state, _ = self._resolve_events(
state_sets, event_type, state_key
)
new_state = {
key: e.event_id for key, e in new_state.items()
}
else:
new_state = {
key: e_ids.pop() for key, e_ids in state.items()
}
state_group = None
new_state_event_ids = frozenset(e.event_id for e in new_state.values())
for sg, events in state_groups.items():
if new_state_event_ids == frozenset(e.event_id for e in events):
new_state_event_ids = frozenset(new_state.values())
for sg, events in state_groups_ids.items():
if new_state_event_ids == frozenset(e_id for e_id in events):
state_group = sg
break
if self._state_cache is not None:
cache = _StateCacheEntry(
state={key: event.event_id for key, event in new_state.items()},
state=new_state,
state_group=state_group,
ts=self.clock.time_msec()
)
self._state_cache[group_names] = cache
defer.returnValue((state_group, new_state, prev_states))
defer.returnValue((state_group, new_state,))
def resolve_events(self, state_sets, event):
logger.info(

55
synapse/storage/state.py
View File

@ -44,11 +44,7 @@ class StateStore(SQLBaseStore):
"""
@defer.inlineCallbacks
def get_state_groups(self, room_id, event_ids):
""" Get the state groups for the given list of event_ids
The return value is a dict mapping group names to lists of events.
"""
def get_state_groups_ids(self, room_id, event_ids):
if not event_ids:
defer.returnValue({})
@ -59,9 +55,32 @@ class StateStore(SQLBaseStore):
groups = set(event_to_groups.values())
group_to_state = yield self._get_state_for_groups(groups)
defer.returnValue(group_to_state)
@defer.inlineCallbacks
def get_state_groups(self, room_id, event_ids):
""" Get the state groups for the given list of event_ids
The return value is a dict mapping group names to lists of events.
"""
if not event_ids:
defer.returnValue({})
group_to_ids = yield self.get_state_groups_ids(room_id, event_ids)
state_event_map = yield self.get_events(
[
ev_id for group_ids in group_to_ids.values()
for ev_id in group_ids.values()
],
get_prev_content=False
)
defer.returnValue({
group: state_map.values()
for group, state_map in group_to_state.items()
group: [
state_event_map[v] for v in event_id_map.values() if v in state_event_map
]
for group, event_id_map in group_to_ids.items()
})
def _store_mult_state_groups_txn(self, txn, events_and_contexts):
@ -248,8 +267,17 @@ class StateStore(SQLBaseStore):
groups = set(event_to_groups.values())
group_to_state = yield self._get_state_for_groups(groups, types)
state_event_map = yield self.get_events(
[ev_id for sd in group_to_state.values() for ev_id in sd.values()],
get_prev_content=False
)
event_to_state = {
event_id: group_to_state[group]
event_id: {
k: state_event_map[v]
for k, v in group_to_state[group].items()
if v in state_event_map
}
for event_id, group in event_to_groups.items()
}
@ -428,20 +456,13 @@ class StateStore(SQLBaseStore):
full=(types is None),
)
state_events = yield self._get_events(
[ev_id for sd in results.values() for ev_id in sd.values()],
get_prev_content=False
)
state_events = {e.event_id: e for e in state_events}
# Remove all the entries with None values. The None values were just
# used for bookkeeping in the cache.
for group, state_dict in results.items():
results[group] = {
key: state_events[event_id]
key: event_id
for key, event_id in state_dict.items()
if event_id and event_id in state_events
if event_id
}
defer.returnValue(results)