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
AUTHORS
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