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April, 26th. 2006:
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ZMQ_MSG_INIT
Section: 0MQ Manual (3) Updated: 12/31/2016 Index
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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().
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Caution
Never access zmq_msg_t members directly, instead always use the zmq_msg family of functions.
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Caution
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.
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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
This page was written by the 0MQ community. To make a change please read the 0MQ Contribution Policy at m[blue]http://www.zeromq.org/docs:contributingm[].
Index
- NAME
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- SYNOPSIS
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- DESCRIPTION
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- RETURN VALUE
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- ERRORS
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- EXAMPLE
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- SEE ALSO
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- AUTHORS
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