zmq_msg_init - Man Page
initialise empty 0MQ message
Synopsis
int zmq_msg_init (zmq_msg_t *msg);
Description
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.
Return Value
The zmq_msg_init() function always returns zero.
Errors
No errors are defined.
Example
Receiving a message from a socket.
zmq_msg_t msg; rc = zmq_msg_init (&msg); assert (rc == 0); int nbytes = zmq_msg_recv (socket, &msg, 0); assert (nbytes != -1);
See Also
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)
Authors
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Referenced By
zmq(7), zmq_msg_close(3), zmq_msg_copy(3), zmq_msg_data(3), zmq_msg_get(3), zmq_msg_init_buffer(3), zmq_msg_init_data(3), zmq_msg_init_size(3), zmq_msg_more(3), zmq_msg_move(3), zmq_msg_size(3).