Module helpers

Helper utilities for rate limiting Common helpers for rate limiter implementations

This module provides shared utility functions for timestamp cleanup, token refill calculations, and other common rate limiting operations to reduce code duplication across different rate limiter implementations.

Functions

calculate_proportional_time_adjustment

Calculate the proportional time adjustment for partial token refill

calculate_proportional_time_adjustment_ns

Calculate proportional time adjustment for nanosecond-based rate limiters

calculate_token_refill

Calculate the number of tokens to refill based on elapsed time

calculate_token_refill_ns

Calculate token refill for nanosecond-based rate limiters

cleanup_old_timestamps

Clean up timestamps older than the specified cutoff time

cleanup_timestamps_by_duration

Clean up timestamps older than the specified duration from now

record_timestamp_with_cleanup

Record a new timestamp and perform cleanup if needed

refill_tokens_with_time_adjustment

Calculate tokens available after time-based refill

should_perform_full_reset

Check if enough time has passed for a full window reset

should_perform_full_reset_ns

Check if enough time has passed for a full window reset (nanosecond version)