zmq_msg_size - retrieve message content size in bytes size_t zmq_msg_size (zmq_msg_t *msg); The zmq_msg_size() function shall return the size in bytes of the content of the message object referenced by msg.

Caution
Never access zmq_msg_t members directly, instead always use the zmq_msg family of functions. Upon successful completion, zmq_msg_size() shall return the size of the message content in bytes. No errors are defined. zmq_msg_data(3) zmq_msg_init(3) zmq_msg_init_size(3) zmq_msg_init_buffer(3) zmq_msg_init_data(3) zmq_msg_close(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.