nng_mqtt_msg_decode.3.adoc

nng_mqtt_msg_decode(3)

NAME

nng_mqtt_msg_decode - decode a mqtt bytes stream from nng_msg_body and nng_msg_header to proto_data

SYNOPSIS

#include <nng/nng.h>

int nng_mqtt_msg_decode(nng_msg **msgp);

DESCRIPTION

The nng_mqtt_msg_decode() function decode body and header data to proto_data (mqtt message structure), then functions nng_mqtt_msg_get_xxx_xxx() can be allowed to get mqtt message infomations.

RETURN VALUES

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

ERRORS

SEE ALSO

nng_mqtt_msg_alloc(3), nng_mqtt_msg_encode(3), nng_msg_free(3), nng_msg_body(3), nng_msg_dup(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_strerror(3), nng_msg(5), nng(7)