table of contents
ZMQ_MSG_GET(3) | 0MQ Manual | ZMQ_MSG_GET(3) |
NAME¶
zmq_msg_get - get message propertySYNOPSIS¶
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_MOREIndicates 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¶
EINVALThe 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¶
zmq_msg_set(3) zmq_msg_init(3) zmq_msg_close(3) 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.10/14/2014 | 0MQ 4.0.5 |