| NNG_SOCKET_ID(3) | NNG Reference Manual | NNG_SOCKET_ID(3) |
nng_socket_id - return numeric socket identifier
#include <nng/nng.h> int nng_socket_id(nng_socket s);
The nng_socket_id() function returns a positive identifier for the socket s, if it is valid. Otherwise it returns -1.
A socket is considered valid if it was ever opened with a protocol
constructor, such as the nng_req0_open() function.
Sockets that are allocated on the stack or statically should be initialized
with the macro NNG_SOCKET_INITIALIZER to ensure that
they cannot be confused with a valid socket before they are opened.
This function returns the positive value for the socket identifier, or -1 if the socket is invalid.
None.
nng_socket(5), nng(7)
| 2025-01-05 |