Struct Settings 

pub struct Settings {
    pub datagrams: bool,
}

The peer’s SETTINGS, reduced to what this server acts on.

Only one setting changes any behaviour here: RFC 9297 §2.1.1 forbids sending HTTP Datagrams until the peer has advertised support for them, and a CONNECT-UDP session falls back to capsules on the request stream until it has. Everything else is validated as the RFC requires and then dropped, because keeping a value nothing reads is how a setting silently stops being honoured.

One of the dropped values carries a SHOULD this server knowingly does not honour, so it is recorded here rather than left to be rediscovered:

A peer’s SETTINGS_MAX_FIELD_SECTION_SIZE is parsed – so that a malformed or duplicated one is still caught – and then dropped. Every response this server sends is a status line and at most two short fields, some 200 bytes by §4.2.2’s own accounting, so honouring the SHOULD would mean carrying the value through the connection, the request and the response writer to change nothing: the only peer it could affect is one advertising a limit small enough to refuse a bare 407, which has asked for a proxy it cannot use. Trimming fields to fit would also mean choosing which of a Proxy-Status explanation or a Proxy-Authenticate challenge to drop, and neither is better sent truncated than in full.

Fields

datagrams: bool

SETTINGS_H3_DATAGRAM = 1.

Trait Implementations

impl Clone for Settings

fn clone(&self) -> Settings

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Settings

impl Debug for Settings

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

Formats the value using the given formatter.

impl Default for Settings

fn default() -> Settings

Returns the “default value” for a type.

impl Eq for Settings

impl PartialEq for Settings

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