Usage quickly after app launch or quickly in a sharing extension.

[crspybits]

Thanks for this package! I'm trying to make use of it to detect if there is a network available in a sharing extension-- quickly after it starts. It's consistently just indicating there is no network connection. But, there is one. Is this expected behavior? Any thoughts?

I also see this behavior, but less consistently, when the app first launches-- and I quickly use this to detect network availability. It will at times incorrectly indicate the network is not available.

[crspybits]

Let me correct that. It's just not giving me an initial value early into the app launch. It's not that it's indicating that the network is not available.

[mylogon341]

Dear distant-past user @crspybits I just had this exact same issue. I ended up using withTaskCancellationHandler to resolve this race condition. Here is a playground file to get you started - although I assume you're probably finished, published and subsetted this project by now

var stashedContinuations = [CheckedContinuation<Bool, Error>]()
var latestResult: ConnectivityResult?

private struct Continuation: Identifiable {
  let id = UUID()
  let continuation: CheckedContinuation<Bool, Error>
}

func hasInternetConnectivity() async throws -> Bool {
  
  if let latestResult = latestResult {
    return latestResult.isConnected
  }
  
  return try await withTaskCancellationHandler(
    handler: {
      cancelStashedContinuations()
    },
    operation: {
      try await withCheckedThrowingContinuation { continuation in
        stashedContinuations.append(.init(continuation: continuation))
      }
    })
}

func continueAllContinuations() {
  
  stashedContinuations.forEach {
    $0.continuation.resume(returning: latestResult?.isConnected == true)
    print(">> responding to a continuation!")
  }
  
  stashedContinuations.removeAll()
  
}

func cancelStashedContinuations() {
  stashedContinuations.forEach({ $0.continuation.resume(returning: false) })
  stashedContinuations.removeAll()
}

Task {
  print("blah")
  
  DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
    continueAllContinuations()
  }
  let conn = try? await hasInternetConnectivity()
  print(conn)
}

That was my draft POC (still need to thoroughly test when implemented). Hopefully its useful for future folk