From e038c51e0fa7633674675b2360e3b498f84140c6 Mon Sep 17 00:00:00 2001
From: WeidiDeng <weidi_deng@icloud.com>
Date: Fri, 28 Jun 2024 16:33:59 +0800
Subject: [PATCH] fix prefetch

---
 layer4/routes.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/layer4/routes.go b/layer4/routes.go
index dea307e..5cd04ec 100644
--- a/layer4/routes.go
+++ b/layer4/routes.go
@@ -125,7 +125,7 @@ func (routes RouteList) Compile(logger *zap.Logger, matchingTimeout time.Duratio
 		for {
 			// only prefetch is needed, it's useful in case a RouteList in another RouteList cases
 			// if some matchers returned ErrConsumedAllPrefetchedBytes, it's true anyway
-			if len(cx.buf) == 0 || len(cx.buf) == cx.offset {
+			if len(cx.buf) == 0 || len(cx.buf[cx.offset:]) == 0 {
 				err = cx.prefetch()
 				if err != nil {
 					logFunc := logger.Error