1NN_INPROC(7) nanomsg 1.1.5 NN_INPROC(7)
2
6 nn_inproc - in-process transport mechanism
7
9 #include <nanomsg/nn.h>
10 #include <nanomsg/inproc.h>
12
14 In-process transport allows to send messages between threads or modules
15 inside a process. In-process address is an arbitrary case-sensitive
16 string preceded by inproc:// protocol specifier. All in-process
17 addresses are visible from any module within the process. They are not
18 visible from outside of the process.
19 The nature of in-process transport makes it easy to pass pointers
21 between threads instead of actual data. This is, however, considered a
22 bad application design and violates the scalable share-nothing
23 architecture. If you do pass pointers among threads, synchronising
24 thread access to shared data becomes your responsibility. Such design
25 also prevents moving the thread into different process or machine once
26 the need arises. As a rule of the thumb, don’t pass pointers among
27 threads unless you know what you are doing.
28 The overall buffer size for an inproc connection is determined by
30 NN_RCVBUF socket option on the receiving end of the connection.
31 NN_SNDBUF socket option is ignored. In addition to the buffer, one
32 message of arbitrary size will fit into the buffer. That way, even
33 messages larger than the buffer can be transfered via inproc
34 connection.
35
37 nn_bind (s1, "inproc://test");
38 nn_connect (s2, "inproc://test);
39
41 nn_ipc(7) nn_tcp(7) nn_bind(3) nn_connect(3) nanomsg(7)
42
44 Martin Sustrik <sustrik@250bpm.com>
45 2021-01-26 NN_INPROC(7)