Struct simple_pub_sub::message::Header

pub struct Header {
    pub header: u8,
    pub version: [u8; 2],
    pub pkt_type: PktType,
    pub topic_length: u8,
    pub message_length: u16,
    pub padding: u8,
}

Header for the pub/sub packet total length 8 bytes.

Fields

header: u8

start byte of the packet, default value: 0x0F

version: [u8; 2]

pub-sub version: two bytes.

pkt_type: PktType

packet type: PktType

topic_length: u8

topic length for publishing/subscribing/querying.

message_length: u16

message length: Max length 16 MB.

padding: u8

padding/endo of the header: 0x00

Implementations

impl Header

pub fn new(pkt_type: PktType, topic_len: u8, message_len: u16) -> Header

creates a new Header with the given data.

pub fn response_header(&self) -> Result<Header, HeaderError>

returns a Header for the response Msg.

pub fn bytes(&self) -> Vec<u8>

returns the bytes for Header.

pub fn from_vec(bytes: Vec<u8>) -> Result<Header, HeaderError>

returns a Header from bytes.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Header

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.