1ZMQ_MSG_INIT(3)                   0MQ Manual                   ZMQ_MSG_INIT(3)
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NAME

6       zmq_msg_init - initialise empty 0MQ message
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SYNOPSIS

9       int zmq_msg_init (zmq_msg_t *msg);
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DESCRIPTION

12       The zmq_msg_init() function shall initialise the message object
13       referenced by msg to represent an empty message. This function is most
14       useful when called before receiving a message with zmq_msg_recv().
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16           Caution
17           Never access zmq_msg_t members directly, instead always use the
18           zmq_msg family of functions.
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20           Caution
21           The functions zmq_msg_init(), zmq_msg_init_data(),
22           zmq_msg_init_size() and zmq_msg_init_buffer() are mutually
23           exclusive. Never initialise the same zmq_msg_t twice.
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RETURN VALUE

26       The zmq_msg_init() function always returns zero.
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ERRORS

29       No errors are defined.
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EXAMPLE

32       Receiving a message from a socket.
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34           zmq_msg_t msg;
35           rc = zmq_msg_init (&msg);
36           assert (rc == 0);
37           int nbytes = zmq_msg_recv (socket, &msg, 0);
38           assert (nbytes != -1);
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SEE ALSO

42       zmq_msg_init_size(3) zmq_msg_init_buffer(3) zmq_msg_init_data(3)
43       zmq_msg_close(3) zmq_msg_data(3) zmq_msg_size(3) zmq(7)
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AUTHORS

46       This page was written by the 0MQ community. To make a change please
47       read the 0MQ Contribution Policy at
48       http://www.zeromq.org/docs:contributing.
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520MQ 4.3.4                         07/23/2022                   ZMQ_MSG_INIT(3)
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