Struct HbtpHeader 

#[repr(C, packed(1))]
pub struct HbtpHeader {
    pub magic: u32,
    pub version: u8,
    pub msg_type: u8,
    pub flags: u16,
    pub stream_id: u32,
    pub length: u32,
    pub checksum: u32,
}

HBTP header - 20 bytes

Fields

magic: u32

Magic: 0x48425450 (“HBTP”)

version: u8

Protocol version

msg_type: u8

Message type

flags: u16

Flags (compression, priority, etc.)

stream_id: u32

Multiplexed stream ID

length: u32

Payload length

checksum: u32

CRC32 checksum of header fields (excluding checksum itself)

Implementations

impl HbtpHeader

pub const SIZE: usize = 20

Size of the header in bytes

pub fn new( version: u8, msg_type: u8, flags: u16, stream_id: u32, length: u32, ) -> Self

Create a new HBTP header with computed checksum

pub fn compute_checksum(&self) -> u32

Compute CRC32 checksum of header fields (excluding checksum)

pub fn verify_checksum(&self) -> bool

Verify the checksum is correct

pub fn from_bytes(bytes: &[u8]) -> Result<&Self, DCPError>

Parse header from bytes - O(1) via pointer cast

pub fn from_bytes_verified(bytes: &[u8]) -> Result<&Self, DCPError>

Parse header from bytes and verify checksum

pub fn as_bytes(&self) -> &[u8]

Serialize header to bytes - zero allocation

Trait Implementations

impl Clone for HbtpHeader

fn clone(&self) -> HbtpHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HbtpHeader

impl Debug for HbtpHeader

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

Formats the value using the given formatter.

impl Eq for HbtpHeader

impl PartialEq for HbtpHeader

fn eq(&self, other: &HbtpHeader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for HbtpHeader