Struct CompressionAssign 

pub struct CompressionAssign {
    pub context_id: VarInt,
    pub ip_version: u8,
    pub ip_address: Option<IpAddr>,
    pub udp_port: Option<u16>,
}

COMPRESSION_ASSIGN Capsule

Registers a Context ID for either uncompressed or compressed operation.

• IP Version 0 = uncompressed (no IP/port follows)
• IP Version 4 = IPv4 compressed context
• IP Version 6 = IPv6 compressed context

Per the specification, clients allocate even Context IDs and servers allocate odd Context IDs. Context ID 0 is reserved.

Fields

context_id: VarInt

Context ID (clients allocate even, servers allocate odd)

ip_version: u8

IP Version: 0 = uncompressed, 4 = IPv4, 6 = IPv6

ip_address: Option<IpAddr>

Target IP address (None if ip_version == 0)

udp_port: Option<u16>

Target UDP port in network byte order (None if ip_version == 0)

Implementations

impl CompressionAssign

pub fn uncompressed(context_id: VarInt) -> Self

Create an uncompressed context registration

An uncompressed context allows sending datagrams with inline IP address and port information, suitable for communicating with arbitrary targets.

pub fn compressed_v4(context_id: VarInt, addr: Ipv4Addr, port: u16) -> Self

Create a compressed context for an IPv4 target

A compressed context registers a specific IPv4 address and port, allowing subsequent datagrams to omit the target information.

pub fn compressed_v6(context_id: VarInt, addr: Ipv6Addr, port: u16) -> Self

Create a compressed context for an IPv6 target

A compressed context registers a specific IPv6 address and port, allowing subsequent datagrams to omit the target information.

pub fn is_uncompressed(&self) -> bool

Check if this is an uncompressed context

pub fn target(&self) -> Option<SocketAddr>

Get the target socket address if this is a compressed context

Trait Implementations

impl Clone for CompressionAssign

fn clone(&self) -> CompressionAssign

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Codec for CompressionAssign

fn decode<B: Buf>(buf: &mut B) -> Result<Self>

Decode a Self from the provided buffer, if the buffer is large enough

fn encode<B: BufMut>(&self, buf: &mut B)

Append the encoding of self to the provided buffer

impl Debug for CompressionAssign

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

Formats the value using the given formatter.

impl PartialEq for CompressionAssign

fn eq(&self, other: &CompressionAssign) -> 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 CompressionAssign

impl StructuralPartialEq for CompressionAssign