Enum StreamEncoding 

pub enum StreamEncoding {
    Identity,
    Deflate12c,
    Zstd20c,
}

One direction’s stream encoding, named by its preface token.

Variants

Identity

Plain ILTP bytes. Always available and implied by every offer.

Deflate12c

Raw deflate (RFC 1951) with a 4 KiB window, sync flushes and the preset dictionary.

Zstd20c

Magicless zstd (RFC 8878) with at most a 1 MiB window, no checksum, content size or dictionary ID, and the raw-content preset dictionary.

Implementations

impl StreamEncoding

pub const COMPILED: &'static [StreamEncoding]

Compiled-in compressed encodings, most preferred first.

pub fn token(self) -> &'static str

pub fn from_token(token: &str) -> Option<StreamEncoding>

Parse a token; tokens unknown to this build return None.

pub fn parse_list<'a>( tokens: impl IntoIterator<Item = &'a str>, ) -> Result<Vec<StreamEncoding>, &'static str>

Parse one configured token list: the encode preference and decode set of a carrier. Tokens unknown to this build, identity, and repeats are errors.

pub fn select( sender_encode: &[StreamEncoding], receiver_decode: &[StreamEncoding], ) -> StreamEncoding

The encoding of one direction: the first entry of the sender’s Encode list that the receiver’s Decode list contains, else Identity, which both lists imply.

Trait Implementations

impl Clone for StreamEncoding

fn clone(&self) -> StreamEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StreamEncoding

impl Debug for StreamEncoding

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

Formats the value using the given formatter.

impl Eq for StreamEncoding

impl Hash for StreamEncoding

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for StreamEncoding

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