From 34234e19cc9bace360fa4b5e96a54764a30dbdf8 Mon Sep 17 00:00:00 2001
From: Bakhshi Moeez <107806938+BakhshiMoeez@users.noreply.github.com>
Date: Sun, 16 Apr 2023 06:13:05 +0500
Subject: [PATCH] Update logger.js

using async reading and writing to the file for better performance in init function.
---
 NodeSample/utils/logger.js | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/NodeSample/utils/logger.js b/NodeSample/utils/logger.js
index f16fc63..9043775 100644
--- a/NodeSample/utils/logger.js
+++ b/NodeSample/utils/logger.js
@@ -7,23 +7,33 @@
  * var log = logger("filePath");
  * log.writeLog("err",logMessage);
  */
-var fs = require('fs');
-var buffersize = 30000;
+const fs = require('fs');
+const buffersize = 30000;
 
 exports.init = function(logfile){
     if(logfile){
-        var buffer = new Buffer(buffersize);
-        var fd = fs.openSync(logfile,'a');
+        const buffer = Buffer.alloc(buffersize);
+        let fd;
+        try {
+            fd = await fs.promises.open(logfile, 'a');
+        } catch (err) {
+            throw err;
+        }
     }
-    function writeLog(type,logmsg){
-        var log = {type:type,msg:logmsg,time:getTime()};
+    async function writeLog(type,logmsg){
+        const log = {type:type,msg:logmsg,time:getTime()};
         console.log(formatLogMsg(log));
-        fs.writeSync(fd,formatLogMsg(log),0,0,null);
+        try {
+            await fs.promises.write(fd, formatLogMsg(log), 0, 0);
+        } catch (err) {
+            throw err;
+        }
     }
     return {
-        log: function(type,logmsg){writeLog(type,logmsg)},
+        log: async function(type,logmsg){await writeLog(type,logmsg)},
     };
 }
+
 //格式化日志内容
 function formatLogMsg(log){
     return [log.time,log.type,log.msg] + "\n";
@@ -53,4 +63,4 @@ function allPrpos ( obj ) {
     }
     // 最后显示所有的属性
     return props;
-}
\ No newline at end of file
+}