async fn backup_keys(
        sessions: Vec<InboundGroupSession>,
        backup_key: &MegolmV1BackupKey,
    ) -> (BTreeMap<RoomId, RoomKeyBackup>, BTreeMap<RoomId, BTreeMap<String, BTreeSet<String>>>)
    {
        let mut backup: BTreeMap<RoomId, RoomKeyBackup> = BTreeMap::new();
        let mut session_record: BTreeMap<RoomId, BTreeMap<String, BTreeSet<String>>> =
            BTreeMap::new();

        for session in sessions.into_iter() {
            let room_id = session.room_id().to_owned();
            let session_id = session.session_id().to_owned();
            let sender_key = session.sender_key().to_owned();
            let session = backup_key.encrypt(session).await;

            session_record
                .entry(room_id.clone())
                .or_default()
                .entry(sender_key)
                .or_default()
                .insert(session_id.clone());

            backup
                .entry(room_id)
                .or_insert_with(|| RoomKeyBackup::new(BTreeMap::new()))
                .sessions
                .insert(session_id, session);
        }

        (backup, session_record)
    }
/// Backup all the non-backed up room keys we know about
Backup all the non-backed up room keys we know about
Backup all the non - backed up room keys we know about
async fn backup_keys(
        sessions: Vec<InboundGroupSession>,
        backup_key: &MegolmV1BackupKey,
    ) -> (BTreeMap<RoomId, RoomKeyBackup>, BTreeMap<RoomId, BTreeMap<String, BTreeSet<String>>>)
    {
        let mut backup: BTreeMap<RoomId, RoomKeyBackup> = BTreeMap::new();
        let mut session_record: BTreeMap<RoomId, BTreeMap<String, BTreeSet<String>>> =
            BTreeMap::new();
        for session in sessions.into_iter() {
            let room_id = session.room_id().to_owned();
            let session_id = session.session_id().to_owned();
            let sender_key = session.sender_key().to_owned();
            let session = backup_key.encrypt(session).await;
            session_record
                .entry(room_id.clone())
                .or_default()
                .entry(sender_key)
                .or_default()
                .insert(session_id.clone());
            backup
                .entry(room_id)
                .or_insert_with(|| RoomKeyBackup::new(BTreeMap::new()))
                .sessions
                .insert(session_id, session);
        }
        (backup, session_record)
    }
async fn backup_keys ( sessions : Vec < InboundGroupSession > , backup_key : & MegolmV1BackupKey , ) -> ( BTreeMap < RoomId , RoomKeyBackup > , BTreeMap < RoomId , BTreeMap < String , BTreeSet < String > > > ) { let mut backup : BTreeMap < RoomId , RoomKeyBackup > = BTreeMap :: new ( ) ; let mut session_record : BTreeMap < RoomId , BTreeMap < String , BTreeSet < String > > > = BTreeMap :: new ( ) ; for session in sessions . into_iter ( ) { let room_id = session . room_id ( ) . to_owned ( ) ; let session_id = session . session_id ( ) . to_owned ( ) ; let sender_key = session . sender_key ( ) . to_owned ( ) ; let session = backup_key . encrypt ( session ) . await ; session_record . entry ( room_id . clone ( ) ) . or_default ( ) . entry ( sender_key ) . or_default ( ) . insert ( session_id . clone ( ) ) ; backup . entry ( room_id ) . or_insert_with ( | | RoomKeyBackup :: new ( BTreeMap :: new ( ) ) ) . sessions . insert ( session_id , session ) ; } ( backup , session_record ) }
Backup all the non-backed up room keys we know about
Backup all the non - backed up room keys we know about
sessions
Vec<InboundGroupSession>
backup_key
&MegolmV1BackupKey
sessions
Vec<InboundGroupSession>
backup_key
&MegolmV1BackupKey