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some comments in the state res code

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Richard van der Hoff 2017-10-05 14:58:17 +01:00
parent 5de926d66f
commit 3ddda939d3
1 changed files with 13 additions and 0 deletions
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13
synapse/state.py
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@ -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
)