nng_inproc - intra-process transport
Contents
Description
The inproc transport provides communication support between sockets within the same process. This may be
used as an alternative to slower transports when data must be moved within the same process.
This transport tries hard to avoid copying data, and thus is very light-weight.
Registration
This transport is generally built-in to the core, so no extra steps to use it should be necessary.
URIFormat
This transport uses URIs using the scheme inproc://, followed by an arbitrary string of text, terminated
by a NUL byte.
Multiple URIs can be used within the same application, and they will not interfere with one another.
Two applications may also use the same URI without interfering with each other, and they will be unable
to communicate with each other using that URI.
SocketAddress
When using an nng_sockaddr structure, the actual structure is of type nng_sockaddr_inproc.
TransportOptions
The inproc transport has no special options.
Note
While inproc accepts the option NNG_OPT_RECVMAXSZ for compatibility, the value of the option is
ignored with no enforcement. As inproc peers are in the same address space, they are implicitly
trusted, and thus it makes no sense to spend cycles protecting a program from itself.
Name
nng_inproc - intra-process transport
See Also
nng_inproc_register(3), nng_sockaddr_inproc(5), nng(7)
2025-04-20 NNG_INPROC(7)
Synopsis
#include <nng/transport/inproc/inproc.h>
int nng_inproc_register(void);
