Struct SettingId 

pub struct SettingId(/* private fields */);

Available on crate features http and std only.

The identifier of an HTTP/3 setting (RFC 9114 §7.2.4, §11.2.2).

Unknown identifiers are preserved (an endpoint “MUST ignore … unknown or unsupported values”, RFC 9114 §7.2.4.1) while still being subject to duplicate detection. The setting identifiers HTTP/2 defined without an HTTP/3 counterpart are reserved and their receipt is a connection error of type H3_SETTINGS_ERROR; SettingId::is_h2_forbidden recognizes them.

Implementations

impl SettingId

pub const QPACK_MAX_TABLE_CAPACITY: SettingId

SETTINGS_QPACK_MAX_TABLE_CAPACITY (RFC 9204 §5).

pub const MAX_FIELD_SECTION_SIZE: SettingId

SETTINGS_MAX_FIELD_SECTION_SIZE (RFC 9114 §7.2.4.1).

pub const QPACK_BLOCKED_STREAMS: SettingId

SETTINGS_QPACK_BLOCKED_STREAMS (RFC 9204 §5).

pub const fn new(value: u64) -> SettingId

Construct a setting identifier from its raw value.

pub const fn value(self) -> u64

The raw identifier value.

pub const fn is_reserved(self) -> bool

Whether this is a reserved identifier of the form 0x1f * N + 0x21 (RFC 9114 §11.2.2) used for greasing. Reserved identifiers are legal on the wire and ignored on receipt.

pub const fn is_h2_forbidden(self) -> bool

Whether this identifier was reserved because HTTP/2 defined it and HTTP/3 does not reuse it (0x00, 0x02, 0x03, 0x04, 0x05; RFC 9114 §7.2.4.1, §11.2.2). Its receipt is a connection error of type H3_SETTINGS_ERROR.

pub const fn name(self) -> Option<&'static str>

A human-readable name for a known setting identifier, if any.

Trait Implementations

impl Clone for SettingId

fn clone(&self) -> SettingId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SettingId

impl Debug for SettingId

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

Formats the value using the given formatter.

impl Eq for SettingId

impl From<u64> for SettingId

fn from(value: u64) -> SettingId

Converts to this type from the input type.

impl Hash for SettingId

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 Ord for SettingId

fn cmp(&self, other: &SettingId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for SettingId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for SettingId

fn partial_cmp(&self, other: &SettingId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for SettingId