limit: clamp bandwidth limiter burst (#5471)

2026-08-09 17:30:39 +08:00
parent 5b68148f11
commit f666d97b64
6 changed files with 117 additions and 2 deletions
@@ -34,8 +34,15 @@ func NewWriter(w io.Writer, limiter *rate.Limiter) *Writer {
 }

 func (w *Writer) Write(p []byte) (n int, err error) {
+	if len(p) == 0 {
+		return 0, nil
+	}
+
 	var nn int
 	b := w.limiter.Burst()
+	if b <= 0 {
+		return 0, invalidBurstError(b)
+	}
 	for {
 		end := len(p)
 		if end == 0 {