Type Alias SubSenders 

type SubSenders = Arc<RwLock<HashMap<SubscriptionID, Sender<NewNotification>>>>;

Map from SubscriptionID to the channel sender that feeds that subscription’s HTTP/3 reply stream. Used by dispatch_subs_task to look up the right sender for each incoming NewNotification and forward the notification to its stream.

Inserted on subscribe, removed on unsubscribe (or when the stream ends). RwLock because the dispatcher reads it on every notification (frequent), while subscribe / unsubscribe write rarely.

Aliased Type

struct SubSenders { /* private fields */ }