diff options
| -rw-r--r-- | synapse/state.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/synapse/state.py b/synapse/state.py index 390799fbd5..dcdcdef65e 100644 --- a/synapse/state.py +++ b/synapse/state.py @@ -288,6 +288,9 @@ class StateHandler(object): """ logger.debug("resolve_state_groups event_ids %s", event_ids) + # map from state group id to the state in that state group (where + # 'state' is a map from state key to event id) + # dict[int, dict[(str, str), str]] state_groups_ids = yield self.store.get_state_groups_ids( room_id, event_ids ) @@ -320,11 +323,15 @@ class StateHandler(object): "Resolving state for %s with %d groups", room_id, len(state_groups_ids) ) + # build a map from state key to the event_ids which set that state. + # dict[(str, str), set[str]) state = {} for st in state_groups_ids.values(): for key, e_id in st.items(): state.setdefault(key, set()).add(e_id) + # build a map from state key to the event_ids which set that state, + # including only those where there are state keys in conflict. conflicted_state = { k: list(v) for k, v in state.items() @@ -494,8 +501,14 @@ def _resolve_with_state_fac(unconflicted_state, conflicted_state, logger.info("Asking for %d conflicted events", len(needed_events)) + # dict[str, FrozenEvent]: a map from state event id to event. Only includes + # the state events which are in conflict. state_map = yield state_map_factory(needed_events) + # get the ids of the auth events which allow us to authenticate the + # conflicted state, picking only from the unconflicting state. + # + # dict[(str, str), str]: a map from state key to event id auth_events = _create_auth_events_from_maps( unconflicted_state, conflicted_state, state_map ) |