Method register

crates/openshell-server/src/supervisor_session.rs:109–136

Register a live supervisor session for the given sandbox. If a previous session exists for the same sandbox, its shutdown signal is fired so the old session task exits promptly. Returns `true` iff a previous session was superseded.

(
        &self,
        sandbox_id: String,
        session_id: String,
        tx: mpsc::Sender<GatewayMessage>,
        shutdown: oneshot::Sender<()>,
    )

    /// is fired so the old session task exits promptly. Returns `true` iff a
    /// previous session was superseded.
    pub fn register(
        &self,
        sandbox_id: String,
        session_id: String,
        tx: mpsc::Sender<GatewayMessage>,
        shutdown: oneshot::Sender<()>,
    ) -> bool {
        let mut sessions = self.sessions.lock().unwrap();
        let previous = sessions.remove(&sandbox_id);
        sessions.insert(
            sandbox_id.clone(),
            LiveSession {
                sandbox_id,
                session_id,
                tx,
                shutdown,
                connected_at: Instant::now(),
            },
        );
        match previous {
            Some(prev) => {
                // Best-effort — the old task may have already exited.
                let _ = prev.shutdown.send(());
                true
            }
            None => false,
        }
    }

    /// Report whether a live supervisor session is registered for a sandbox.
    ///