zmq_poll (select version) now correctly assumes that ZMQ_FD is edge-trigerred

src/zmq.cpp

@@ -569,12 +569,6 @@ int zmq_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
             //  The poll item is a 0MQ socket. Retrieve pending events
             //  using the ZMQ_EVENTS socket option.
             if (items_ [i].socket) {
-                size_t zmq_fd_size = sizeof (zmq::fd_t);
-                zmq::fd_t notify_fd;
-                if (zmq_getsockopt (items_ [i].socket, ZMQ_FD, &notify_fd,
-                      &zmq_fd_size) == -1)
-                    return -1;
-                if (FD_ISSET (notify_fd, &inset)) {
                 size_t zmq_events_size = sizeof (uint32_t);
                 uint32_t zmq_events;
                 if (zmq_getsockopt (items_ [i].socket, ZMQ_EVENTS, &zmq_events,
@@ -587,7 +581,6 @@ int zmq_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
                       (zmq_events & ZMQ_POLLIN))
                     items_ [i].revents |= ZMQ_POLLIN;
             }
-            }
             //  Else, the poll item is a raw file descriptor, simply convert
             //  the events to zmq_pollitem_t-style format.
             else {