add connect interface and log4 with code

LFtid1056/cloudfront/code/rocketmq.cpp

@@ -2040,3 +2040,36 @@ void rocketmq_test_getdir(Front* front)//用来测试目录获取
     std::lock_guard<std::mutex> lock(queue_data_list_mutex);
     queue_data_list.push_back(data);
 }
+
+//状态翻转
+void connect_status_update(const std::string& id, int status)
+{
+    // 获取当前系统时间（格式: YYYY-MM-DD HH:MM:SS）
+    auto now = std::chrono::system_clock::now();
+    std::time_t now_c = std::chrono::system_clock::to_time_t(now);
+    std::tm tm_buf;
+    localtime_r(&now_c, &tm_buf);
+
+    std::ostringstream datetime_ss;
+    datetime_ss << std::put_time(&tm_buf, "%Y-%m-%d %H:%M:%S");
+    std::string datetime_str = datetime_ss.str();
+
+    // 构造 JSON 对象
+    nlohmann::json j;
+    j["id"]   = id;
+    j["date"] = datetime_str;
+    j["status"] = std::to_string(status);
+
+    // 构造队列消息
+    queue_data_t connect_info;
+    connect_info.strTopic = G_CONNECT_TOPIC;
+    connect_info.strText  = j.dump(); // 转成字符串
+
+    {
+        std::lock_guard<std::mutex> lock(queue_data_list_mutex);
+        queue_data_list.push_back(std::move(connect_info));
+    }
+
+    // 调试打印
+    std::cout << "[connect_status_update] queued JSON:\n" << j.dump(4) << std::endl;
+}