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zmq_inproc(7)
=============
NAME
----
zmq_inproc - 0MQ local in-process (inter-thread) communication transport
SYNOPSIS
--------
The in-process transport passes messages via memory directly between threads
sharing a single 0MQ 'context'.
NOTE: No I/O threads are involved in passing messages using the 'inproc'
transport. Therefore, if you are using a 0MQ 'context' for in-process messaging
only you can initialise the 'context' with zero I/O threads. See
linkzmq:zmq_init[3] for details.
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 in-process transport shall be set to
`inproc`. The meaning of the 'endpoint' part for the in-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
'inproc' transport, the 'endpoint' shall be interpreted as an arbitrary string
identifying the 'name' to create. The 'name' must be unique within the 0MQ
'context' associated with the 'socket' and may be up to 256 characters in
length. No other restrictions are placed on the format of the 'name'.
Connecting a socket
~~~~~~~~~~~~~~~~~~~
When connecting a 'socket' to a peer address using _zmq_connect()_ with the
'inproc' transport, the 'endpoint' shall be interpreted as an arbitrary string
identifying the 'name' to connect to. The 'name' must have been previously
created by assigning it to at least one 'socket' within the same 0MQ 'context'
as the 'socket' being connected.
WIRE FORMAT
-----------
Not applicable.
EXAMPLES
--------
.Assigning a local address to a socket
----
/* Assign the in-process name "#1" */
rc = zmq_bind(socket, "inproc://#1");
assert (rc == 0);
/* Assign the in-process name "my-endpoint" */
rc = zmq_bind(socket, "inproc://my-endpoint");
assert (rc == 0);
----
.Connecting a socket
----
/* Connect to the in-process name "#1" */
rc = zmq_connect(socket, "inproc://#1");
assert (rc == 0);
/* Connect to the in-process name "my-endpoint" */
rc = zmq_connect(socket, "inproc://my-endpoint");
assert (rc == 0);
----
SEE ALSO
--------
linkzmq:zmq_bind[3]
linkzmq:zmq_connect[3]
linkzmq:zmq_ipc[7]
linkzmq:zmq_tcp[7]
linkzmq:zmq_pgm[7]
linkzmq:zmq[7]
AUTHORS
-------
This manual page was written by the 0MQ community.
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