Struct FragmentHeader 

pub struct FragmentHeader {
    pub src_node: u8,
    pub msg_seq: u8,
    pub frag_idx: u8,
    pub total_frags: u8,
}

Fragment header

Fields

src_node: u8

Source node ID

msg_seq: u8

Message sequence number

frag_idx: u8

Fragment index (255 = single unfragmented packet)

total_frags: u8

Total number of fragments (0 = single packet)

Implementations

impl FragmentHeader

pub const SIZE: usize = FRAGMENT_HEADER_SIZE

Header size in bytes

pub const fn single(src_node: u8, msg_seq: u8) -> Self

Create header for a single (unfragmented) packet

pub const fn fragment( src_node: u8, msg_seq: u8, frag_idx: u8, total_frags: u8, ) -> Self

Create header for a fragment

pub const fn is_single(&self) -> bool

Check if this is a single (unfragmented) packet

pub const fn is_first(&self) -> bool

Check if this is the first fragment

pub const fn is_last(&self) -> bool

Check if this is the last fragment

pub fn encode(&self, buf: &mut [u8]) -> Result<usize>

Encode header into buffer

Returns

Number of bytes written (always 4)

pub fn decode(buf: &[u8]) -> Result<Self>

Decode header from buffer

Trait Implementations

impl Clone for FragmentHeader

fn clone(&self) -> FragmentHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FragmentHeader

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

Formats the value using the given formatter.

impl PartialEq for FragmentHeader

fn eq(&self, other: &FragmentHeader) -> 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 Copy for FragmentHeader

impl Eq for FragmentHeader

impl StructuralPartialEq for FragmentHeader