Struct SignerLimiter 

pub struct SignerLimiter { /* private fields */ }

Per-signer trading limiter, with the tier discovered from response headers.

Starts at Tier::Standard — the tightest — and resizes both buckets the first time a Poly-RateLimit-Tier header reports something different.

The resize discards accumulated state

governor buckets cannot be resized in place, so adopting a new tier replaces them with fresh ones at full capacity. Moving up a tier is therefore safe: the venue already permits the wider allowance. Moving down briefly permits a full burst at the narrower capacity, which the venue may throttle. Tier changes are rare (they track 30-day volume), so this is preferred to the complexity of draining the old bucket into the new one.

Implementations

impl SignerLimiter

pub fn new() -> Self

Create a limiter at the default (tightest) tier.

pub fn tier(&self) -> Tier

The tier currently in force.

pub fn last_status(&self) -> RateLimitStatus

The most recent Poly-RateLimit-* telemetry seen.

pub fn observe(&self, headers: &HeaderMap)

Record the rate-limit headers from a response, adopting a reported tier.

Responses carrying none of the headers are ignored, so non-trading requests cannot clear the telemetry.

pub async fn acquire( &self, request: TradingRequest, ) -> Result<(), BurstCapacityExceeded>

Wait for request’s token cost to be available, then consume it.

Errors

BurstCapacityExceeded when the cost exceeds the bucket’s capacity. This returns immediately rather than waiting forever.

Trait Implementations

impl Clone for SignerLimiter

fn clone(&self) -> SignerLimiter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SignerLimiter

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

Formats the value using the given formatter.

impl Default for SignerLimiter

fn default() -> Self

Returns the “default value” for a type.