From df9ea93c092474a4066b2bcdae6149d35c5a80c1 Mon Sep 17 00:00:00 2001
From: ucwong <ucwong@126.com>
Date: Mon, 22 Jul 2024 20:12:52 +0800
Subject: [PATCH] fix

---
 monitor.go | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/monitor.go b/monitor.go
index 6818c45..afce6c3 100644
--- a/monitor.go
+++ b/monitor.go
@@ -589,7 +589,8 @@ func (m *Monitor) syncLastBlock() uint64 {
 				m.taskCh <- rpcBlock
 			}
 
-			for n := 0; n < len(blocks); n++ {
+			size := len(blocks)
+			for n := 0; n < size; n++ {
 				select {
 				case err := <-m.errCh:
 					if err != nil {
@@ -603,8 +604,8 @@ func (m *Monitor) syncLastBlock() uint64 {
 					return 0
 				}
 			}
-			i += uint64(len(blocks))
-			counter += len(blocks)
+			i += uint64(size)
+			counter += size
 		} else {
 			rpcBlock, rpcErr := m.rpcBlockByNumber(i)
 			if rpcErr != nil {