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0MQ 0.4 (Default branch)
12-09-2008
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ZMQ_MSG_INIT(3) 0MQ Manual 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_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); 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
This manual page was written by the 0MQ community. 0MQ 2.2.0 04/04/2012 ZMQ_MSG_INIT(3)