Man page - zmq_msg_routing_id(3)
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apt-get install libzmq3-dev
Manual
ZMQ_MSG_ROUTING_ID
NAMESYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLE
SEE ALSO
AUTHORS
NAME
zmq_msg_routing_id - return routing ID for message, if any
SYNOPSIS
uint32_t zmq_msg_routing_id (zmq_msg_t *message );
DESCRIPTION
The zmq_msg_routing_id() function returns the routing ID for the message, if any. The routing ID is set on all messages received from a ZMQ_SERVER socket. To send a message to a ZMQ_SERVER socket you must set the routing ID of a connected ZMQ_CLIENT peer. Routing IDs are transient.
RETURN VALUE
The zmq_msg_routing_id() function shall return zero if there is no routing ID, otherwise it shall return an unsigned 32-bit integer greater than zero.
EXAMPLE
Receiving a client message and routing ID .
void *ctx =
zmq_ctx_new ();
assert (ctx);
void *server =
zmq_socket (ctx, ZMQ_SERVER);
assert (server);
int rc = zmq_bind (server,
"tcp://127.0.0.1:8080");
assert (rc == 0);
zmq_msg_t
message;
rc = zmq_msg_init (&message);
assert (rc == 0);
// Receive a
message from socket
rc = zmq_msg_recv (server, &message, 0);
assert (rc != -1);
uint32_t routing_id = zmq_msg_routing_id (&message);
assert (routing_id);
SEE ALSO
zmq_msg_set_routing_id (3)
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 .