Enum PacketLengthType

pub enum PacketLengthType {
    OneOctet,
    TwoOctets,
    FourOctets,
    Indeterminate,
}

The length encoded for an old style CTB.

The PacketLengthType is only part of the old CTB, and is partially used to determine the packet’s size.

See Section 4.2.2 of RFC 9580 for more details.

Variants

OneOctet

A one-octet Body Length header encodes a length of 0 to 191 octets.

The header is 2 octets long. It contains the one byte CTB followed by the one octet length.

TwoOctets

A two-octet Body Length header encodes a length of 192 to 8383 octets.

The header is 3 octets long. It contains the one byte CTB followed by the two octet length.

FourOctets

A four-octet Body Length.

The header is 5 octets long. It contains the one byte CTB followed by the four octet length.

Indeterminate

The packet is of indeterminate length.

Neither the packet header nor the packet itself contain any information about the length. The end of the packet is clear from the context, e.g., EOF.

Trait Implementations

impl Clone for PacketLengthType

fn clone(&self) -> PacketLengthType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PacketLengthType

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

Formats the value using the given formatter.

impl From<PacketLengthType> for u8

fn from(l: PacketLengthType) -> Self

Converts to this type from the input type.

impl PartialEq for PacketLengthType

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

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

const 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 TryFrom<u8> for PacketLengthType

type Error = Error

The type returned in the event of a conversion error.

fn try_from(u: u8) -> Result<Self>

Performs the conversion.

impl Copy for PacketLengthType

impl StructuralPartialEq for PacketLengthType