zmq_msg_init - initialise empty 0MQ message int zmq_msg_init (zmq_msg_t *msg); The zmq_msg_init() function shall initialise the message object referenced by msg to represent an empty message. This function is most useful when called before receiving a message with zmq_msg_recv().

Caution
Never access zmq_msg_t members directly, instead always use the zmq_msg family of functions.

Caution
The functions zmq_msg_init(), zmq_msg_init_data(), zmq_msg_init_size() and zmq_msg_init_buffer() are mutually exclusive. Never initialise the same zmq_msg_t twice. The zmq_msg_init() function always returns zero. No errors are defined.

zmq_msg_t msg; rc = zmq_msg_init (&msg); assert (rc == 0); int nbytes = zmq_msg_recv (socket, &msg, 0); assert (nbytes != -1); zmq_msg_init_size(3) zmq_msg_init_buffer(3) zmq_msg_init_data(3) zmq_msg_close(3) zmq_msg_data(3) zmq_msg_size(3) zmq(7) This page was written by the 0MQ community. To make a change please read the 0MQ Contribution Policy at http://www.zeromq.org/docs:contributing: http://www.zeromq.org/docs:contributing.