Bosco Siu

It is correct behavior for `zmq_connect()` to not emit an error when the destination isn't immediately reachable. The idea is ZeroMQ will retry behind the scenes until a connection can...

It starts getting a bit messy, but you can use the facilities provided by [zmq_socket_monitor](http://api.zeromq.org/master:zmq-socket-monitor). It reports low level socket events through a separate `ZMQ_PAIR`. Fortunately this is somewhat streamlined...

> So how is the additional PAIR socket supposed to help in solving that issue? If I understand correctly, you would like to be notified if a destination is unreachable....

We have a `point_cloud` and a `grid`. What we are trying to compute is the transform that best aligns the points in `point_cloud` with the occupied cells in `grid`. In...