modify logs

LFtid1056/cloudfront/code/log4.cpp

@@ -150,6 +150,7 @@ protected:
                 << "\",\"nodeId\":\"" << FRONT_INST
                 << "\",\"businessId\":\"" << extract_logger_id(logger_name)
                 << "\",\"level\":\"" << level_str
+                << "\",\"time\":\"" << now_yyyy_mm_dd_hh_mm_ss()
                 << "\",\"grade\":\"" << get_level_str(level)
                 // ★新增：输出 code 字段（整型）
                 << "\",\"code\":\"" << code
@@ -485,17 +486,27 @@ extern "C" {
     }
 
     //标准化日志接口
+    // #define LOGMSG_WITH_TS  // 需要时间时再打开
+
     void format_log_msg(char* buf, size_t buf_size, const char* fmt, ...) {
+        if (!buf || buf_size == 0) return;
+        buf[0] = '\0';
+        if (!fmt) return;
+
+        va_list args;
+        va_start(args, fmt);
+    #ifdef LOGMSG_WITH_TS
         // 写入时间
         time_t now = time(NULL);
         struct tm tm_info;
         localtime_r(&now, &tm_info);
-        strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S ", &tm_info);  // 时间+空格
-
-        // 处理可变参数并写入剩余内容
-        va_list args;
-        va_start(args, fmt);
-        vsnprintf(buf + strlen(buf), buf_size - strlen(buf), fmt, args);
+        size_t n = strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S ", &tm_info);
+        if (n < buf_size) {
+            vsnprintf(buf + n, buf_size - n, fmt, args);
+        }
+    #else
+        vsnprintf(buf, buf_size, fmt, args);
+    #endif
         va_end(args);
     }