From a701c82c904fb3dd0879dc64297c320309bf6e29 Mon Sep 17 00:00:00 2001
From: "glm-5.1" <glm-5.1@alk.dev>
Date: Fri, 12 Jun 2026 04:21:53 +0000
Subject: [PATCH] fix: use nanosecond precision in token bucket refill
 calculation

---
 src/rate_limit/bucket.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rate_limit/bucket.rs b/src/rate_limit/bucket.rs
index 58cb7b1..fcaaecb 100644
--- a/src/rate_limit/bucket.rs
+++ b/src/rate_limit/bucket.rs
@@ -34,8 +34,8 @@ impl TokenBucket {
 
     fn refill(&mut self, rate: f64, max: u32) {
         let now = Instant::now();
-        let elapsed = now.duration_since(self.last_refill).as_millis() as f64;
-        let tokens_to_add = (elapsed * rate) / 1000.0;
+        let elapsed = now.duration_since(self.last_refill).as_nanos() as f64;
+        let tokens_to_add = (elapsed / 1_000_000_000.0) * rate;
         self.tokens = (self.tokens + tokens_to_add).min(max as f64);
         self.last_refill = now;