zmq_msg_init(3)
ØMQ Manual - ØMQ/4.2.2
Name
zmq_msg_init - initialise empty ØMQ 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_recv().
Never access zmq_msg_t members directly, instead always use the zmq_msg family of functions.
The functions zmq_msg_init(), zmq_msg_init_data() and zmq_msg_init_size() 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_recv (socket, &msg, 0); assert (nbytes != -1);
See also
zmq_msg_init_size(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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