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- zmq_msg_init(3)
- ===============
- 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_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
- --------
- linkzmq:zmq_msg_init_size[3]
- linkzmq:zmq_msg_init_buffer[3]
- linkzmq:zmq_msg_init_data[3]
- linkzmq:zmq_msg_close[3]
- linkzmq:zmq_msg_data[3]
- linkzmq:zmq_msg_size[3]
- linkzmq:zmq[7]
- AUTHORS
- -------
- 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>.
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