void Monitor::cancel_probe_timeout()
{
  if (probe_timeout_event) {
    dout(10) << "cancel_probe_timeout " << probe_timeout_event << dendl;
    timer.cancel_event(probe_timeout_event);
    probe_timeout_event = NULL;
  } else {
    dout(10) << "cancel_probe_timeout (none scheduled)" << dendl;
  }
}
void Monitor::cancel_probe_timeout()
{
  if (probe_timeout_event) {
    dout(10) << "cancel_probe_timeout " << probe_timeout_event << dendl;
    timer.cancel_event(probe_timeout_event);
    probe_timeout_event = NULL;
  } else {
    dout(10) << "cancel_probe_timeout (none scheduled)" << dendl;
  }
}