INNER CODE UNIT · Swift

startNotifier

openimsdk/open-im-sdk-flutter · ios/Classes/Reachability.swift:172

    func startNotifier() throws {
        guard !notifierRunning else { return }

        let callback: SCNetworkReachabilityCallBack = { (reachability, flags, info) in
            guard let info = info else { return }

            // `weakifiedReachability` is guaranteed to exist by virtue of our
            // retain/release callbacks which we provided to the `SCNetworkReachabilityContext`.
            let weakifiedReachability = Unmanaged<ReachabilityWeakifier>.fromOpaque(info).takeUnretainedValue()

            // The weak `reachability` _may_ no longer exist if the `Reachability`
            // object has since been deallocated but a callback was already in flight.
            weakifiedReachability.reachability?.flags = flags
        }

        let weakifiedReachability = ReachabilityWeakifier(reachability: self)
        let opaqueWeakifiedReachability = Unmanaged<ReachabilityWeakifier>.passUnretained(weakifiedReachability).toOpaque()

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