Manpages - zmq_msg_set_routing_id.3

zmq_msg_set_routing_id - set routing ID property on message

int zmq_msg_set_routing_id (zmq_msg_t */*message/, uint32_t routing_id);*

The zmq_msg_set_routing_id() function sets the routing_id specified, on the the message pointed to by the message argument. The routing_id must be greater than zero. To get a valid routing ID, you must receive a message from a ZMQ_SERVER socket, and use the libzmq:zmq_msg_routing_id method. Routing IDs are transient.

The zmq_msg_set_routing_id() function shall return zero if successful. Otherwise it shall return -1 and set errno to one of the values defined below.

EINVAL

The provided routing_id is zero.

*zmq_msg_routing_id*(3) *zmq*(7)

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