async Task AttemptRestart(IRestartable restartable, int attempt, Exception error)
{
attempt += 1;
// quite if there are no more delays in the sequence
if (!_delays.MoveNext())
{
await restartable.MaxRestartsReached(attempt);
return;
}
// attempt another restart
TimeSpan delay = _delays.Current;
Debug.Assert(delay > TimeSpan.Zero);
await restartable.PauseBeforeRestart(delay);
try
{
await restartable.Restart();
}
catch (Exception ex)
{
Logging.Log.Warning("Failed to restart: " + ex);
return;
}
Monitor(restartable, attempt);
}