From d96b6e769ac590a1110f66cd0d7db38e2af4ccb3 Mon Sep 17 00:00:00 2001
From: hotyue <52734432+hotyue@users.noreply.github.com>
Date: Fri, 17 Apr 2026 05:31:58 +0000
Subject: [PATCH] =?UTF-8?q?fix(core):=20=E5=BC=95=E5=85=A5=20flock=20?=
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---
 core/runner.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/core/runner.sh b/core/runner.sh
index a1c7e17..10db3cc 100755
--- a/core/runner.sh
+++ b/core/runner.sh
@@ -15,6 +15,14 @@ if [ ! -f "$CONFIG_FILE" ]; then
 fi
 source "$CONFIG_FILE"
 
+# ================== [新增: 文件排他锁，防止并发重入引发内存雪崩] ==================
+exec 200>"/tmp/ip_sentinel_runner.lock"
+if ! flock -n 200; then
+    echo "[$(date)] ⚠️ 上一轮巡逻任务尚未结束，本次触发自动取消。" >> "$LOG_FILE"
+    exit 0
+fi
+# ==================================================================================
+
 # 2. 全局日志写入函数 (导出给子进程共享使用，v3.4.0 引入版本探针)
 log() {
     local module=$1