Struct Gcra 

pub struct Gcra { /* private fields */ }

A GCRA limiter parameterised by a steady emission interval and a burst tolerance. Construct one from a Profile with Gcra::from_profile.

Implementations

impl Gcra

pub fn from_profile(profile: Profile) -> Self

Build a limiter from a Profile. burst is clamped to at least 1 and rate to at least 1 so the emission interval is finite.

pub fn check(&self, stored_tat: Option<Duration>, now: Duration) -> Verdict

Evaluate a request arriving at now (a monotonically-increasing instant expressed as a Duration since a fixed epoch), given the key’s stored TAT (None for a first-seen key).

A now that moves backwards (clock skew) is tolerated: the check never panics and treats the effective arrival time as max(now, tat_floor).

Trait Implementations

impl Clone for Gcra

fn clone(&self) -> Gcra

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Gcra

impl Debug for Gcra

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

Formats the value using the given formatter.

impl Eq for Gcra

impl PartialEq for Gcra

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Gcra