Lane Open Modes

Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>

src/web/session.rs

@@ -124,6 +124,8 @@ struct SessionState {
     last_up_sequence: u64,
     last_up_digest: TokenHash,
     carrier_lanes: HashMap<u32, CarrierLane>,
+    lane_open_claims: HashSet<u32>,
+    lane_open_waits: usize,
     next_lane_instance: u64,
     websocket_lane_reservations: HashMap<u32, u16>,
     pending_bytes: usize,
@@ -160,6 +162,7 @@ pub(crate) struct WebSession {
     timeouts: WebTimeoutsConfig,
     state: Mutex<SessionState>,
     down_notify: Arc<Notify>,
+    lane_open_notify: Arc<Notify>,
     cancel: CancellationToken,
     tasks_live: AtomicUsize,
     tasks_done: Arc<Notify>,
@@ -228,6 +231,8 @@ impl WebSession {
                 last_up_sequence: 0,
                 last_up_digest: [0; 32],
                 carrier_lanes,
+                lane_open_claims: HashSet::new(),
+                lane_open_waits: 0,
                 next_lane_instance,
                 websocket_lane_reservations: HashMap::new(),
                 pending_bytes: 0,
@@ -240,6 +245,7 @@ impl WebSession {
                 closed: false,
             }),
             down_notify: Arc::new(Notify::new()),
+            lane_open_notify: Arc::new(Notify::new()),
             cancel: CancellationToken::new(),
             tasks_live: AtomicUsize::new(0),
             tasks_done: Arc::new(Notify::new()),