On Tue, Feb 28, 2012 at 1:48 PM, Jacky Wang <jacky.chao.wang at gmail.com> wrote: > 2) AFAIK, the zmq_socket is not thread-safe thus could not be passed around. > Does ØMQ/2.1 removed this limitation? Otherwise many threads can easily > reuse the same TCP connection... The zmq_socket man page may help. -Pieter