Deliver/include/Log4CPP8.0/Log.Include/Log4CPP.LoggingEvent.hpp

#pragma once

#include <sys/timeb.h>
#include <string>
#include <memory>

#include "Log4CPP.Define.hpp"
#include "Log4CPP.LogLevel.hpp"


//-----------------------------------------------------------------------------
//		LoggingEvent
//-----------------------------------------------------------------------------

namespace Log4CPP
{

	struct LoggingEvent
	{
		TLogString    LoggerName;
		const char *  Message = nullptr;
		int           BytesOfMessage = 0;
		enLogLevel    LogLevel;
		DWORD         ThreadID = 0;
		struct timeb  TimeStamp;
		bool          WithLayout = false;
		unsigned long SeriesNo = 0;
		tTraceID      TraceID = 0;

		LoggingEvent () = default;
		LoggingEvent (LoggingEvent && from)
		{
			LoggerName = std::move (from.LoggerName);
			Message = from.Message;
			BytesOfMessage = from.BytesOfMessage;
			LogLevel = from.LogLevel;
			ThreadID = from.ThreadID;
			TimeStamp = from.TimeStamp;
			WithLayout = from.WithLayout;
			SeriesNo = from.SeriesNo;
			TraceID = from.TraceID;
		}
		LoggingEvent (const LoggingEvent & from)
		{
			LoggerName = from.LoggerName;
			Message = from.Message;
			BytesOfMessage = from.BytesOfMessage;
			LogLevel = from.LogLevel;
			ThreadID = from.ThreadID;
			TimeStamp = from.TimeStamp;
			WithLayout = from.WithLayout;
			SeriesNo = from.SeriesNo;
			TraceID = from.TraceID;
		}

	private:
//		static unsigned long  gSeriesNo;
	};

};



//-----------------------------------------------------------------------------
//		暂时无法实现 LoggingEvent 的序列号. 原因如下: (2021-12-14)
// 1. 如果把 gSeriesNo 设计成 inline static, 则需要 C++ 14 以上版本,
//    而且, 即使 C++ 14 以上, 在不同的模块中, 看见的是不同的 gSeriesNo, 
//    这样 SeriesNo 就混乱了, 也失去了 SeriesNo 的意义了
// 2. 如果把 gSeriesNo 设计成 static, 则需要 LoggingEvent.cpp, 
//    并且还需要把 LoggingEvent 设计成 dllexport, 这又会造成 Log4CPP.dll 与 Log4CPP.Layout.dll 两个模块互相依赖
// 3. 未来版本, 如果实在需要 SeriesNo, 可以把 Logger 中的基础类拆分出来, 设计成一个更基础的 dll 组件
// 4. 目前的构建顺序及依赖关系如下:
//    1) Log4CPP.TLSLog
//    2) Log4CPP.Utility
//	  3) Log4CPP.Layout
//	  4) Log4CPP
//	     5) BackgroundTask
//	     6) NetSocket
//    7) Log4CPP.Appender
//    8) Log4CPP.Appender.UDP
//	  9) Log4CPP.Appender.ZeroMQ
//	     10) TCPServer
//		 11) UDPServer
//	 10) Log4CPP.Appender.Telnet
//-----------------------------------------------------------------------------