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zmq_msg_get(3)
==============
NAME
----
zmq_msg_get - get message property
SYNOPSIS
--------
*int zmq_msg_get (zmq_msg_t '*message', int 'property');*
DESCRIPTION
-----------
The _zmq_msg_get()_ function shall return the value for the property
specified by the 'property' argument for the message pointed to by the
'message' argument.
The following properties can be retrieved with the _zmq_msg_get()_ function:
*ZMQ_MORE*::
Indicates that there are more message frames to follow after the 'message'.
RETURN VALUE
------------
The _zmq_msg_get()_ function shall return the value for the property if
successful. Otherwise it shall return `-1` and set 'errno' to one of the
values defined below.
ERRORS
------
*EINVAL*::
The requested _property_ is unknown.
EXAMPLE
-------
.Receiving a multi-frame message
----
zmq_msg_t frame;
while (true) {
// Create an empty 0MQ message to hold the message frame
int rc = zmq_msg_init (&frame);
assert (rc == 0);
// Block until a message is available to be received from socket
rc = zmq_msg_recv (socket, &frame, 0);
assert (rc != -1);
if (zmq_msg_get (&frame, ZMQ_MORE))
fprintf (stderr, "more\n");
else {
fprintf (stderr, "end\n");
break;
}
zmq_msg_close (&frame);
}
----
SEE ALSO
--------
linkzmq:zmq_msg_set[3]
linkzmq:zmq_msg_init[3]
linkzmq:zmq_msg_close[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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