cleanup() halts on rfa::common::EventQueue::destroy()

unknown

After RFA C++ modified example StarterConsumer_BatchView has been running for a period of time, cleanup() halts on rfa::common::EventQueue::destroy()

How long does it take to destroy EventQueue? Is there any timeout?

Is there anything I can do to trace the destroy progress?

Steven McCoy

EventQueue::destroy() must not be called until all active streams have been completed. This is why the cleanup() function is organised as follows:

// prevent new events from being added to the queue
_pEventQueue->deactivate();
// destroy all event consumers
...
// finally destroy the event queue
_pEventQueue->destroy();

If all the event consumers have not terminated, or events are being used in multiple threads without synchronisation then the EventQueue::destroy() will exhibit undefined behaviour.

It can be beneficial to wrap RFA objects with smart pointers and check the reference count before attempting to destroy.

assert (event_queue_.use_count() <= 1);
event_queue_.reset();

I also like to use a leak tracker around objects with RFA references to provide useful feedback on the shutdown sequence.