zmq_ipc(7) [debian man page]

ZMQ_IPC(7)							    0MQ Manual								ZMQ_IPC(7)

NAME

       zmq_ipc - 0MQ local inter-process communication transport

SYNOPSIS

       The inter-process transport passes messages between local processes using a system-dependent IPC mechanism.

	   Note
	   The inter-process transport is currently only implemented on operating systems that provide UNIX domain sockets.

ADDRESSING

       A 0MQ address string consists of two parts as follows: transport://endpoint. The transport part specifies the underlying transport protocol
       to use, and for the inter-process transport shall be set to ipc. The meaning of the endpoint part for the inter-process transport is
       defined below.

   Assigning a local address to a socket
       When assigning a local address to a socket using zmq_bind() with the ipc transport, the endpoint shall be interpreted as an arbitrary
       string identifying the pathname to create. The pathname must be unique within the operating system namespace used by the ipc
       implementation, and must fulfill any restrictions placed by the operating system on the format and length of a pathname.

   Connecting a socket
       When connecting a socket to a peer address using zmq_connect() with the ipc transport, the endpoint shall be interpreted as an arbitrary
       string identifying the pathname to connect to. The pathname must have been previously created within the operating system namespace by
       assigning it to a socket with zmq_bind().

WIRE FORMAT

       Not applicable.

EXAMPLES

       Assigning a local address to a socket.

	   /* Assign the pathname "/tmp/feeds/0" */
	   rc = zmq_bind(socket, "ipc:///tmp/feeds/0");
	   assert (rc == 0);

       Connecting a socket.

	   /* Connect to the pathname "/tmp/feeds/0" */
	   rc = zmq_connect(socket, "ipc:///tmp/feeds/0");
	   assert (rc == 0);

SEE ALSO

       zmq_bind(3) zmq_connect(3) zmq_inproc(7) zmq_tcp(7) zmq_pgm(7) zmq(7)

AUTHORS

       This manual page was written by the 0MQ community.

0MQ 2.2.0							    04/04/2012								ZMQ_IPC(7)

ZMQ_BIND(3)							    0MQ Manual							       ZMQ_BIND(3)

NAME

       zmq_bind - accept connections on a socket

SYNOPSIS

       int zmq_bind (void *socket, const char *endpoint);

DESCRIPTION

       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:

       inproc
	   local in-process (inter-thread) communication transport, see zmq_inproc(7)

       ipc
	   local inter-process communication transport, see zmq_ipc(7)

       tcp
	   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.

RETURN VALUE

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

ERRORS

       EINVAL
	   The endpoint supplied is invalid.

       EPROTONOSUPPORT
	   The requested transport protocol is not supported.

       ENOCOMPATPROTO
	   The requested transport protocol is not compatible with the socket type.

       EADDRINUSE
	   The requested address is already in use.

       EADDRNOTAVAIL
	   The requested address was not local.

       ENODEV
	   The requested address specifies a nonexistent interface.

       ETERM
	   The 0MQ context associated with the specified socket was terminated.

       ENOTSOCK
	   The provided socket was invalid.

       EMTHREAD
	   No I/O thread is available to accomplish the task.

EXAMPLE

       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);

SEE ALSO

       zmq_connect(3) zmq_socket(3) zmq(7)

AUTHORS

       This manual page was written by the 0MQ community.

0MQ 2.2.0							    04/04/2012							       ZMQ_BIND(3)