NAME
zmq_msg_init - 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_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() and zmq_msg_init_size() are mutually exclusive. Never initialize the same zmq_msg_t twice. |
RETURN VALUE
The zmq_msg_init() function shall return zero if successful. Otherwise it
shall return -1
and set errno to one of the values defined below.
ERRORS
No errors are defined.
EXAMPLE
Receiving a message from a socket
zmq_msg_t msg; rc = zmq_msg_init (&msg); assert (rc == 0); rc = zmq_recv (socket, &msg, 0); assert (rc == 0);
AUTHORS
This 0MQ manual page was written by Martin Sustrik <sustrik@250bpm.com> and Martin Lucina <mato@kotelna.sk>.