CLog::CLog()
{
	
	m_fLog = NULL;
	memset( m_szLogFileName, 0, sizeof(char) * LOG_FILE_NAME_LEN );
	strcpy(m_szLogFileName, LOG_PATH);
}

CLog::~CLog()
{
	tm		*tmNow;
	time_t	timeNow;

	// free all the memory allocation
	if ( m_fLog ) 
	{
		time( &timeNow );
		tmNow = localtime( &timeNow );
		fprintf( m_fLog, "\n\nLog closed at [%04d-%02d-%02d %02d:%02d:%02d]\n\n", tmNow->tm_year + 1900, tmNow->tm_mon, tmNow->tm_mday, tmNow->tm_hour, tmNow->tm_min, tmNow->tm_sec );
		fclose ( m_fLog );
	}

}

bool CLog::Log( const char *sz_FileName, int n_LineNum, const char *sz_Log ) 
{
	bool	bRetCode = true;
	time_t	timeNow;
	tm		*tmNow;
	char	szShortDate[8],
			szLogFileName[LOG_FILE_NAME_LEN];
	int		iCounter = 0,
			iFileNameLen = 0;
	string	szFileName = "";

	time( &timeNow );
	tmNow = localtime( &timeNow );

	///////////////////////
	//Get day for       //
	///////////////////////
	strftime( szShortDate, sizeof(char) * 8, "%y%m%d\0", tmNow );

	iFileNameLen = strlen( m_szLogFileName );
	iCounter = iFileNameLen - 1;

	while ( ('_' != m_szLogFileName[iCounter]) && ( iCounter > 0 ) )
		iCounter--;

	strncpy( szLogFileName, m_szLogFileName, iCounter );

	sprintf( szLogFileName + iCounter, "_%s.log\0", szShortDate );

	/////////////////////////////////////////////
	// Check if the log file has been created  //
	/////////////////////////////////////////////
	if( strcmp( szLogFileName, m_szLogFileName ) != 0 )
	{
		if( strcmp( m_szLogFileName, LOG_PATH )==0 )
		{
			m_fLog = fopen( szLogFileName, "a+" );
			fprintf( m_fLog, "\n\nLog Started at [%04d-%02d-%02d %02d:%02d:%02d]. \n\n", tmNow->tm_year + 1900, tmNow->tm_mon, tmNow->tm_mday, tmNow->tm_hour, tmNow->tm_min, tmNow->tm_sec);
		}
		else
		{
			fprintf( m_fLog, "\n\nLog closed at [%04d-%02d-%02d %02d:%02d:%02d]\n\n", tmNow->tm_year + 1900, tmNow->tm_mon, tmNow->tm_mday, tmNow->tm_hour, tmNow->tm_min, tmNow->tm_sec );
			fclose( m_fLog );
			m_fLog = NULL;
			m_fLog = fopen( szLogFileName, "a+" );
			fprintf( m_fLog, "\n\nLog Started at [%04d-%02d-%02d %02d:%02d:%02d]. \n\n", tmNow->tm_year + 1900, tmNow->tm_mon, tmNow->tm_mday, tmNow->tm_hour, tmNow->tm_min, tmNow->tm_sec);
		}
		
		sprintf( m_szLogFileName, "%s\0", szLogFileName );
	}

	
	szFileName = sz_FileName;
	iCounter = szFileName.find_last_of("\\");
	szFileName = szFileName.substr( iCounter+1, strlen(sz_FileName));

	fprintf( m_fLog, "[%04d-%02d-%02d %02d:%02d:%02d]\t", tmNow->tm_year + 1900, tmNow->tm_mon, tmNow->tm_mday, tmNow->tm_hour, tmNow->tm_min, tmNow->tm_sec);

             //???????????????????????????????????????
             //Get the Thread ID and write into file
            //???????????????????????????????????????
           //HOW???????????????????????????????????

	fprintf( m_fLog, "[%s %d]\t", szFileName.c_str(), n_LineNum );
	fprintf( m_fLog, "%s\n", sz_Log );
	fflush( m_fLog );


	return bRetCode;
}