NAME

       nng_close - close socket

SYNOPSIS

           #include <nng/nng.h>

           int nng_close(nng_socket s);

DESCRIPTION

       The nng_close() function closes the supplied socket, s. Messages that have been submitted
       for sending may be flushed or delivered, depending upon the transport.

       Further attempts to use the socket after this call returns will result in NNG_ECLOSED.
       Threads waiting for operations on the socket when this call is executed may also return
       with an NNG_ECLOSED result.

           Note
           Closing the socket while data is in transmission will likely lead to loss of that
           data. There is no automatic linger or flush to ensure that the socket send buffers
           have completely transmitted. It is recommended to wait a brief period after calling
           nng_send() or similar functions, before calling this function.

RETURN VALUES

       This function returns 0 on success, and non-zero otherwise.

ERRORS

       NNG_ECLOSED
           The socket s is already closed or was never opened.

SEE ALSO

       nng_strerror(3), nng_options(5), nng_socket(5), nng(7)

                                            2024-10-11                               NNG_CLOSE(3)