nng_pair_open - create pair socket

       The nng_pair0_open() and nng_pair1_open() functions create a pair version 0 or version 1 socket and
       return it at the location pointed to by s.

       The nng_pair0_open_raw() and nng_pair1_open_raw() functions create a pair version 0 or version 1 socket
       in raw mode and return it at the location pointed to by s.

       The nng_pair1_open_poly() function opens a pair version 1 socket in polyamorous mode.

           Note

           Polyamorous mode is deprecated and should not be used in new applications. The nng_pair1_open_poly()
           function will likely be removed in a future release.

       NNG_ENOMEM
           Insufficient memory is available.

       NNG_ENOTSUP
           The protocol is not supported.

       nng_pair_open - create pair socket

       These functions returns 0 on success, and non-zero otherwise.

nng_socket(5), nng_pair(7), nng(7)

                                                   2025-04-20                                   NNG_PAIR_OPEN(3)

Version0

           #include <nng/protocol/pair0/pair.h>

           int nng_pair0_open(nng_socket *s);

           int nng_pair0_open_raw(nng_socket *s);

       Version1

           #include <nng/protocol/pair1/pair.h>

           int nng_pair1_open(nng_socket *s);

           int nng_pair1_open_raw(nng_socket *s);

           int nng_pair1_open_poly(nng_socktet *s);