plucky (3) nng_msg_header_append.3.gz

Provided by: libnng-dev_1.10.0-1_amd64 bug

NAME

       nng_msg_header_append - append to message header

SYNOPSIS

           #include <nng/nng.h>

           int nng_msg_header_append(nng_msg *msg, const void *val, size_t size);
           int nng_msg_header_append_u16(nng_msg *msg, uint16_t val16);
           int nng_msg_header_append_u32(nng_msg *msg, uint32_t val32);
           int nng_msg_header_append_u64(nng_msg *msg, uint64_t val64);

DESCRIPTION

       The nng_msg_header_append() family of functions appends data to the end of the headers of
       message msg, reallocating it if necessary. The first function appends size bytes, copying
       them from val.

       The remaining functions append the value (such as val32) in network-byte order
       (big-endian).

RETURN VALUES

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

ERRORS

       NNG_ENOMEM
           Insufficient free memory exists.

SEE ALSO

       nng_msg_alloc(3), nng_msg_header(3), nng_msg_header_chop(3), nng_msg_header_insert(3),
       nng_msg_header_len(3), nng_msg_header_trim(3), nng_msg_free(3), nng_strerror(3), nng(7)

                                            2025-01-05                   NNG_MSG_HEADER_APPEND(3)