[zeromq-dev] How many messages are in queue now?

[Ilja Golshtein]

Hello.

I used to think that it is possible to retrieve number or queued messages per socket in recent versions of 0mq, while I failed to find correspond getsockopt in 4.0.5

Use case: I need to alter behavior of my application (drop certain type of messages) if a queue is, say, 90% of HWM. 

Please, advise if this facility is implemented or planned, or suggest a workaround which is more elegant than having atomic variable (it is inproc) maintained by reader and writer threads which is what I plan to do.

Thanks.

-- 
Best regards
Ilja Golshtein