Add more optimized iterations for user memberships room_id's.

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/client/sync/v5.rs

@@ -119,14 +119,14 @@ pub(crate) async fn sync_events_v5_route(
 
 	let all_invited_rooms = services
 		.state_cache
-		.rooms_invited_state(sender_user)
+		.rooms_invited(sender_user)
-		.map(|r| r.0)
+		.map(ToOwned::to_owned)
 		.collect::<Vec<OwnedRoomId>>();
 
 	let all_knocked_rooms = services
 		.state_cache
-		.rooms_knocked_state(sender_user)
+		.rooms_knocked(sender_user)
-		.map(|r| r.0)
+		.map(ToOwned::to_owned)
 		.collect::<Vec<OwnedRoomId>>();
 
 	let (all_joined_rooms, all_invited_rooms, all_knocked_rooms) =

src/service/deactivate/mod.rs

@@ -123,14 +123,14 @@ impl Service {
 		let rooms_invited = self
 			.services
 			.state_cache
-			.rooms_invited_state(user_id)
+			.rooms_invited(user_id)
-			.map(|(r, _)| r);
+			.map(ToOwned::to_owned);
 
 		let rooms_knocked = self
 			.services
 			.state_cache
-			.rooms_knocked_state(user_id)
+			.rooms_knocked(user_id)
-			.map(|(r, _)| r);
+			.map(ToOwned::to_owned);
 
 		let all_rooms: Vec<_> = rooms_joined
 			.chain(rooms_invited)

src/service/rooms/state_cache/mod.rs

@@ -396,6 +396,45 @@ pub fn rooms_joined<'a>(
 		.map(|(_, room_id): (Ignore, &RoomId)| room_id)
 }
 
+/// Returns an iterator over all rooms a user was invited to.
+#[implement(Service)]
+#[tracing::instrument(skip(self), level = "debug")]
+pub fn rooms_invited<'a>(
+	&'a self,
+	user_id: &'a UserId,
+) -> impl Stream<Item = &RoomId> + Send + 'a {
+	self.db
+		.userroomid_invitestate
+		.keys_raw_prefix(user_id)
+		.ignore_err()
+		.map(|(_, room_id): (Ignore, &RoomId)| room_id)
+}
+
+/// Returns an iterator over all rooms a user is currently knocking.
+#[implement(Service)]
+#[tracing::instrument(skip(self), level = "debug")]
+pub fn rooms_knocked<'a>(
+	&'a self,
+	user_id: &'a UserId,
+) -> impl Stream<Item = &RoomId> + Send + 'a {
+	self.db
+		.userroomid_knockedstate
+		.keys_raw_prefix(user_id)
+		.ignore_err()
+		.map(|(_, room_id): (Ignore, &RoomId)| room_id)
+}
+
+/// Returns an iterator over all rooms a user left.
+#[implement(Service)]
+#[tracing::instrument(skip(self), level = "debug")]
+pub fn rooms_left<'a>(&'a self, user_id: &'a UserId) -> impl Stream<Item = &RoomId> + Send + 'a {
+	self.db
+		.userroomid_leftstate
+		.keys_raw_prefix(user_id)
+		.ignore_err()
+		.map(|(_, room_id): (Ignore, &RoomId)| room_id)
+}
+
 /// Returns an iterator over all rooms a user was invited to.
 #[implement(Service)]
 #[tracing::instrument(skip(self), level = "debug")]