[zeromq-dev] correct way to safely hanging up a socket

[Seth Burleigh]

Any way to do this with sockets which are on the receive end of
things? Say, i have sockets which are pulling, if i attempt to close a
pull socket, it is possible that it drops a message between the moment
it last receives messages and closes. Currently, is there any way to
process all of these requests without receiving any more messages?