Struct Extension 

pub struct Extension {
    pub ext_type: u16,
    pub data: Vec<u8>,
}

Available on crate feature extensions only.

Extension TLV (Type-Length-Value) format

Wire format:

+0   Extension Type (2 bytes LE16)
+2   Extension Length (2 bytes LE16)
+4   Extension Data (variable)

Fields

ext_type: u16

Extension type identifier

data: Vec<u8>

Extension data

Implementations

impl Extension

pub fn new(ext_type: u16, data: Vec<u8>) -> Self

Create a new extension

pub fn empty(ext_type: u16) -> Self

Create an empty extension (no data)

pub fn compression(level: u8) -> Self

Create compression extension with level

pub fn compression_level(&self) -> Option<u8>

Get compression level if this is a compression extension

pub fn wire_size(&self) -> usize

Total wire size

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

Encode to bytes

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

Encode into buffer, returns bytes written

pub fn decode(data: &[u8]) -> Result<Self, NegotiationError>

Decode from bytes

pub fn decode_with_length( data: &[u8], ) -> Result<(Self, usize), NegotiationError>

Decode from bytes, returning extension and bytes consumed

Trait Implementations

impl Clone for Extension

fn clone(&self) -> Extension

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Extension

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

Formats the value using the given formatter.

impl PartialEq for Extension

fn eq(&self, other: &Extension) -> 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 Eq for Extension

impl StructuralPartialEq for Extension