ØMQ Manual - ØMQ/2.2.0
zmq_bind - accept connections on a socket
int zmq_bind (void *socket, const char *endpoint);
The zmq_bind() function shall create an endpoint for accepting connections and bind it to the socket referenced by the socket argument.
The endpoint argument is a string consisting of two parts as follows: transport ://address. The transport part specifies the underlying transport protocol to use. The meaning of the address part is specific to the underlying transport protocol selected.
The following transports are defined:
- local in-process (inter-thread) communication transport, see zmq_inproc(7)
- local inter-process communication transport, see zmq_ipc(7)
- unicast transport using TCP, see zmq_tcp(7)
- pgm, epgm
- reliable multicast transport using PGM, see zmq_pgm(7)
With the exception of ZMQ_PAIR sockets, a single socket may be connected to multiple endpoints using zmq_connect(), while simultaneously accepting incoming connections from multiple endpoints bound to the socket using zmq_bind(). Refer to zmq_socket(3) for a description of the exact semantics involved when connecting or binding a socket to multiple endpoints.
The zmq_bind() function shall return zero if successful. Otherwise it shall return -1 and set errno to one of the values defined below.
- The requested transport protocol is not supported.
- The requested transport protocol is not compatible with the socket type.
- The requested address is already in use.
- The requested address was not local.
- The requested address specifies a nonexistent interface.
- The ØMQ context associated with the specified socket was terminated.
- The provided socket was not valid (NULL).
- No I/O thread is available to accomplish the task.
Binding a publisher socket to an in-process and a tcp transport
/* Create a ZMQ_PUB socket */ void *socket = zmq_socket (context, ZMQ_PUB); assert (socket); /* Bind it to a in-process transport with the address 'my_publisher' */ int rc = zmq_bind (socket, "inproc://my_publisher"); assert (rc == 0); /* Bind it to a TCP transport on port 5555 of the 'eth0' interface */ rc = zmq_bind (socket, "tcp://eth0:5555"); assert (rc == 0);
The ØMQ documentation was written by Martin Sustrik <moc.mpb052|kirtsus#moc.mpb052|kirtsus> and Martin Lucina <ks.anletok|otam#ks.anletok|otam>.