pub(crate) fn exchange_at_once(qt: &CxxQtThread<Sioul>, shared: &Arc<Shared>)Expand description
An exchange now, on the calling thread (never the window’s), as the
minute’s runs it (exchange_now): Sioul keeping the folder itself, the
server looked through first, what this device wrote sent after. A device
joining waits for it, to say what came (join).