60 lines
2.5 KiB
C#
60 lines
2.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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namespace RunUpdater.Lib
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{
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public class LogHelper
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{
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public static string path = AppDomain.CurrentDomain.BaseDirectory;
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/// <summary>
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/// 读写锁，锁定文件写入权限，每个线程依次等待上个写入完成
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/// </summary>
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private static System.Threading.ReaderWriterLockSlim LogWriteLock = new System.Threading.ReaderWriterLockSlim();
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private static Dictionary<long, long> lockDic = new Dictionary<long, long>();
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public static void WriteServiceLog(string LogData)
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{
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LogData = DateTime.Now.ToLongTimeString() + ":" + LogData;
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LogData = LogData.Replace("\r\n", Environment.NewLine);
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string LogName = "日志_Send" + DateTime.Now.Year.ToString() + "-" + DateTime.Now.Month.ToString() + "-" + DateTime.Now.Day.ToString() + ".log";
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WriteLogger(LogName, LogData);
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}
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public static void WriteLogger(string logFileName, string logData)
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{
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try
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{
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//设置读写锁为写入模式独占资源
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//因写入模式的进入与释放在同一个代码块内，请保证在块内进入写入模式前不会触发异常，否则会因为进入与释放次数不符从而触发异常
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//请勿长时间占用读写锁否则会导致其他线程饥饿。
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LogWriteLock.EnterWriteLock();
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string filename = Path.Combine(path, "log", logFileName);
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//不存在目录则创建
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if (!Directory.Exists(Path.Combine(path, "log")))
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Directory.CreateDirectory(Path.Combine(path, "log"));
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//不存在文件则创建
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if (!File.Exists(filename))
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{
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File.Create(filename).Close();
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}
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using (FileStream file = new FileStream(filename, FileMode.Append, FileAccess.Write))
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{
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using (StreamWriter sw = new StreamWriter(file))
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{
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sw.WriteLine(logData + Environment.NewLine);
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}
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file.Close();
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}
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}
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catch { }
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finally
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{
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//退出写入模式，释放资源占用
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//注意释放与进入次数相同否则会触发异常
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LogWriteLock.ExitWriteLock();
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}
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}
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}
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}
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