NAME

       nng_msg - message

SYNOPSIS

           #include <nng/nng.h>

           typedef struct nng_msg nng_msg;

DESCRIPTION

       An nng_msg represents a single message sent between Scalability Protocols peers. Messages internally have
       a body, containing the application supplied payload, and a header, containing protocol specific routing
       and similar related information.

           Tip

           Using message-oriented functions is a good way to reduce the likelihood of data copies and improve
           application performance.

       Messages are allocated using the nng_msg_alloc() function, and are deallocated using the nng_msg_free()
       function.

       In addition there are other functions used to access message contents, including adding data to either
       the beginning or end of the message, automatic data conversion, and removing data from the beginning or
       end. These functions are designed to try to avoid copying message contents by making use of scratch areas
       at the beginning and end of the message.

SEE ALSO

       nng_aio_get_msg(3), nng_aio_set_msg(3), nng_msg_alloc(3), nng_msg_body(3), nng_msg_dup(3),
       nng_msg_free(3), nng_msg_header(3), nng_msg_header_len(3), nng_msg_len(3), nng_msg_capacity(3),
       nng_msg_reserve(3), nng_msg_realloc(3), nng_recvmsg(3), nng_sendmsg(3), nng_strerror(3), nng(7)

                                                   2025-04-20                                         NNG_MSG(5)