On 11/25/2010 10:59 AM, gonzalo diethelm wrote: > Regarding point #3 below, what is the behavior in 0MQ when zmq_poll() is > called with a zmq_pollitem_t array that contains the same 0MQ socket > more than once? POSIX doesn't say anything about such a case with standard poll(). Thus, I think, "undefined" is the answer. Martin