Enum Preface 

pub enum Preface {
    H2,
    Http1,
    Partial,
    Invalid,
}

What the first bytes of a connection are.

Variants

H2

The HTTP/2 preface: hand the connection to the HTTP/2 codec, preface included.

Http1

Anything else: parse as HTTP/1.

Partial

Too few bytes to tell (a prefix of the preface, or nothing).

Invalid

The bytes start with the preface’s request line, PRI * HTTP/2.0, but the rest of the preface is wrong: an HTTP/2 client with a broken preface. RFC 9113 §3.4 makes that a connection error of type PROTOCOL_ERROR, so hand it to the HTTP/2 codec, which answers GOAWAY(PROTOCOL_ERROR) and closes, rather than to the HTTP/1 parser.

Trait Implementations

impl Clone for Preface

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Preface

impl Debug for Preface

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

Formats the value using the given formatter.

impl Eq for Preface

impl PartialEq for Preface

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Preface