标签:cin 程序 led ogg 默认 技术 进程间 inf sub
MultiLog是一种同时以灵活性和低开销为目标的日志系统。顾名思义,它可用于将日志实例到多个目标,如文本文件、可视控件或其他应用程序。添加新的日志目标使用两个方法就可以实现了,其中一个方法是可选的。
MultiLog通常类似于CodeSite、Smart Inect、Overseer和EstLogger,但它没有紧跟其中的任何一个,以不同的方式实现了许多功能,甚至具有一些独特的功能。
目前(2019年5月)版本是v 0.6.0.0。
MultiLog的使用是极其简单的,如前面说的,仅仅两步就可以实现日志记录:
1:构建通道
2:输出
通道可以是 IPCChannel,FileChannel,或可视控件,MultiLog预制了三个功能,直接使用即可,IPCChannel实现进程间辅助监视,利用例程View项目,即可实现跨进程Log监视
直接在中应用 MultiLog 单元,其定义了Logger全局实例。
如果要输出到某文件比如日期型号日志 “20190520.log”,
vLOGFileNameM := FormatDateTime(‘yyyymmdd‘, Now); vlogName := vLOGFileNameM + ‘.log‘; FFileChannel := TFileChannel.Create(vlogName); FFileLogHaneld := Logger.Channels.Add(FFileChannel);
这里对FileChannel做了点点调整,加入了固定的目录“Logs”。
constructor TFileChannel.Create(const AFileName: string; ChannelOptions: TFileChannelOptions); const logDir = ‘Logs‘; begin if not DirectoryExists(logDir) then ForceDirectories(logDir); FShowPrefix := fcoShowPrefix in ChannelOptions; FShowTime := fcoShowTime in ChannelOptions; FShowHeader := fcoShowHeader in ChannelOptions; Active := True; FFileName := logDir + DirectorySeparator + AFileName; end;
FileChannel.Create 还带一个ChannelOptions 参数,是个集合 ,默认是带[fcoShowHeader, fcoShowTime],如果要显示如故障、提示、警告需要加上fcoShowPrefix。
with Logger do begin Channels.Add(LogTreeView1.Channel); Channels.Add(TIPCChannel.Create()); Channels.Add(TFileChannel.Create(‘debug.log‘,[fcoShowHeader, fcoShowPrefix, fcoShowTime])); DefaultClasses := [lcDebug]; end;
这也是MultiLog带了一个综合例子,Logger对Send做了多种overload,那么可以对Pascal语言的所有类型直接输出,包括TStringList,“状态”计数,SendError(’’)或者Send([lcError],’’),记录调用情况。
procedure TForm1.TestLogClick(Sender: TObject); var AList:TStringList; begin with Logger do begin ActiveClasses:=lcAll; EnterMethod(Sender,‘TestLogClick‘); AList:=TStringList.Create; with AList do begin Add(‘aaaaaaa‘); Add(‘bbbbbbb‘); Add(‘ccccccc‘); end; Send(‘A Text Message‘); Send(‘Another Text Message‘); Send(‘A StringList‘, AList); AList.Destroy; SendError(‘A Error Message‘); SubLogClick(butSubLog); DefaultClasses := [lcWarning]; ActiveClasses:=[lcDebug,lcInfo]; Send(‘This Text Should NOT be logged‘); Send([lcDebug],‘This Text Should be logged‘); ActiveClasses:=[]; Send([lcWarning],‘But This Text Should NOT‘); //Exitmethod is called even if not active if there‘s a unpaired EnterMethod ExitMethod(Sender,‘TestLogClick‘); ActiveClasses:=lcAll; end; end; procedure TForm1.SubLogClick(Sender: TObject); var OldClasses: set of TDebugClass; begin with Logger do begin OldClasses:=ActiveClasses; ActiveClasses:=lcAll; EnterMethod(Sender,‘SubLogClick‘); SendIf(‘Only show if called by TestLogClick‘,CalledBy(‘TestLogClick‘)); Send(‘AText inside DoIt‘); SendWarning(‘AWarning‘); SendCallStack(‘CallStack example‘); Send(‘A String‘,‘sadjfgadsfbmsandfb‘); Send(‘AInteger‘,4957); Send(‘A Boolean‘,True); ExitMethod(Sender,‘SubLogClick‘); ActiveClasses:=OldClasses; end; end;
=== Log Session Started at 2019/5/12 9:19:41 by MultiLogDemo === 09:19:45.201 >>ENTER METHOD: TButton(butTestLog).TestLogClick 09:19:45.205 INFO: A Text Message 09:19:45.209 INFO: Another Text Message 09:19:45.212 STRINGS: A StringList aaaaaaa bbbbbbb ccccccc 09:19:45.215 ERROR: A Error Message 09:19:45.218 >>ENTER METHOD: TButton(butSubLog).SubLogClick 09:19:45.221 CONDITIONAL: Only show if called by TestLogClick 09:19:45.224 INFO: AText inside DoIt 09:19:45.227 WARNING: AWarning 09:19:45.336 CALL STACK: CallStack example $000000010002DF2D line 329 of unit1.pas $000000010002CF0F line 144 of unit1.pas $0000000100126EF8 line 2913 of include/control.inc $00000001001448FA line 55 of include/buttoncontrol.inc $000000010014502F line 169 of include/buttons.inc $00000001001447C2 line 21 of include/buttoncontrol.inc $000000010000E1B5 $0000000100119B3C line 5419 of include/wincontrol.inc $00000001001A9277 line 112 of lclmessageglue.pas $00000001000FBEE8 line 2515 of win32/win32callback.inc $00000001000FC6BC line 2677 of win32/win32callback.inc $00000001001AEAFF line 105 of win32/win32pagecontrol.inc $00007FFE5F37CA66 $0000000000090B9C 09:19:45.342 VALUE: A String = sadjfgadsfbmsandfb 09:19:45.346 VALUE: AInteger = 4957 09:19:45.349 VALUE: A Boolean = True 09:19:45.352 <<EXIT METHOD: TButton(butSubLog).SubLogClick 09:19:45.354 INFO: This Text Should be logged 09:19:45.356 <<EXIT METHOD: TButton(butTestLog).TestLogClick
通过监视进程MultiLog View监视到的数据,示例Log的输出。
是不是很方便!
标签:cin 程序 led ogg 默认 技术 进程间 inf sub
原文地址:https://www.cnblogs.com/hieroly/p/10851192.html