How to wait for the mountpoint to be ready ?

[FirelightFlagboy]

How should I wait for the mountpoint to be ready ?

When I create a mountpoint using Session::spawn, I consider it to be ready once the Filesystem::init method is called.
To wait for that event, I'm using a Mutex<bool> and a Condvar to signal the event and set them at the end of the init method.

This work well enough on Linux,
but on macOS I suspect this is causing some of my tests to be flaky because the mountpoint is not ready at that point.

Currently I don't see any other way to wait for the mountpoint to be ready, maybe It's something that could be added to Session/BackgroundSession.