Struct H2SettingsLimits 

#[non_exhaustive]
pub struct H2SettingsLimits {
    pub entries: usize,
    pub header_table_size: u32,
    pub frame_size: u32,
    pub header_list_size: u32,
    pub max_concurrent_streams: u32,
}

Available on crate features http and std only.

Resource ceilings for an explicit initial SETTINGS frame or native relay mirror. Install on a connection IO to narrow or expand its supported byte budgets. Literal wire observation itself retains at most 256 setting occurrences. An explicit frame exceeding a ceiling is an error; a relay mirror lowers to it. Ceilings below a protocol minimum count as that minimum.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

entries: usize

Maximum retained ordered setting occurrences, including duplicates/unknowns.

header_table_size: u32

Maximum advertised HPACK decoder table size in bytes.

frame_size: u32

Maximum advertised frame payload size in bytes.

header_list_size: u32

Maximum explicitly advertised decoded header-list size in bytes.

max_concurrent_streams: u32

Maximum explicitly advertised concurrent streams the peer may open.

Implementations

impl H2SettingsLimits

pub fn new() -> H2SettingsLimits

pub fn header_table_ceiling(&self) -> u32

Advertised HPACK table ceiling; never below the protocol default an omission implies.

pub fn frame_size_ceiling(&self) -> u32

Advertised frame size ceiling, within the protocol’s valid range.

pub fn validate(&self, settings: &Settings) -> Result<(), Error>

Check a validated literal frame before advertising its receive budgets. Omitted fields keep their protocol meanings, not builder advertisements.

Trait Implementations

impl Clone for H2SettingsLimits

fn clone(&self) -> H2SettingsLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for H2SettingsLimits

impl Debug for H2SettingsLimits

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

Formats the value using the given formatter.

impl Default for H2SettingsLimits

fn default() -> H2SettingsLimits

Returns the “default value” for a type.

impl Extension for H2SettingsLimits

impl HttpExtension for H2SettingsLimits