How do I tell if an HttpResponse is already closed?

Question

Using Dart's dart:io library, how can I tell if an HttpResponse is already closed?

I couldn't find a hint in the API docs: http://api.dartlang.org/docs/releases/latest/dart_io/HttpResponse.html

Answer 1

Stab in the dark here, but would connectionInfo being null mean that the HttpResponse has finished?

Otherwise, I guess you could set a "closed" bool variable from the Future returned by done, and test whether it's set before processing the response?

HttpResponse response = ...;
bool closed = false;
response.done.then((_) => closed = true);

if (!closed) {
  ...
}

But I'm not sure whether you could ever do this early enough, would depend on the scenario.