Ceph » RADOS

we use tbd todo some test over, and shutdown our client, then it hang for a long time, and did't go on ever.

it looks like code has some question :
src/common/ceph_timer.h

void timer_thread() {
...
l.unlock();
e.f();
l.lock();

...

if (schedule.empty())
    cond.wait(l);
  else
    cond.wait_until(l, schedule.begin()->t);
  ...  
}
  ~timer() {
    suspend();
    cancel_all_events();
  }

// Suspend operation of the timer (and let its thread die).
      void suspend() {
    unique_lock l(lock);
    if (suspended)
      return;

suspended = true;
    cond.notify_one();
    l.unlock();
    thread.join();
      }

once called suspend ,but thread is in e.f(),
and schedule is empty, it will hang forever.
shutdown will not go on.