Module rate_limits 

Admission-based rate limiting for throughput and bandwidth.

This module provides RateLimiter, which enforces configurable limits at three levels of granularity — global, per-usecase, and per-scope — for both request throughput (requests/s) and upload/download bandwidth (bytes/s).

Throughput is enforced using token buckets. Bandwidth uses debt-based GCRA (Generic Cell Rate Algorithm) buckets that track a theoretical arrival time (TAT). All rate-limit checks are synchronous, non-blocking, and lock-free.

Structs

BandwidthHandle

Handle for recording bandwidth consumption against GCRA buckets.

BandwidthLimits

Bandwidth limits applied at global, per-usecase, and per-scope granularity.

RateLimiter

Combined rate limiter that enforces both bandwidth and throughput limits.

RateLimits

Rate limits for objectstore.

ThroughputLimits

Request throughput limits applied at global, per-usecase, and per-scope granularity.

ThroughputRule

An override rule that applies a specific throughput limit to matching request contexts.