ConnectivityObserver

A live source of NetworkReachability readings for the WebSocket fabric.

Bindings: androidConnectivityObserver (a ConnectivityManager.NetworkCallback) and browserConnectivityObserver (navigator.onLine plus the online/offline events). The desktop JVM has no binding on purpose — there is no portable OS reachability observer there, and synthesising one from socket state would report the relay's health as the device's, the exact conflation NetworkReachability forbids. A JVM caller therefore leaves the default UnobservedConnectivity in place and the seam honestly reports FabricAvailability.Unknown. Apple targets have no binding yet either — see #2413.

Inheritors