Enum Acquire 

pub enum Acquire {
    Ok,
    Retry(Duration),
    Unattainable {
        burst_capacity: u64,
    },
}

Outcome of RateLimiter::try_acquire_with_retry: a permit was granted, or the caller should wait at least Retry(d) before a retry will conform - the value for an HTTP Retry-After. Under contention the duration is a best-effort hint (another thread may take the slot first), the guarantee every lock-free rate limiter’s retry-after carries.

Unattainable is the typed answer to a request no amount of waiting can satisfy: n above burst_capacity overshoots the burst window even from a fully idle limiter, so it is a sizing error rather than backpressure. governor reports the same condition as InsufficientCapacity.

Variants

Ok

Retry(Duration)

Unattainable

Fields

burst_capacity: u64

Trait Implementations

impl Clone for Acquire

fn clone(&self) -> Acquire

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Acquire

impl Debug for Acquire

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

Formats the value using the given formatter.

impl Eq for Acquire

impl PartialEq for Acquire

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Acquire