loghndlr.h

设计模式之singleton模式例程

// LogHndlr.h : interface of the CLogHndlr class
//
/////////////////////////////////////////////////////////////////////////////

// Written by : T. Kulathu Sarma

// This file is part of Singleton application to demonstrate the concept of Singleton classes.
// This file is provided "as is" with no expressed or implied warranty.

#ifndef _LOG_HANDLER
#define _LOG_HANDLER

#include "MsgHndlr.h"

// Class declaration for CLogHndlr

class CLogHndlr : public CMsgHndlr
{
	// Destructor
	public :
		virtual ~CLogHndlr();
		DECLARE_DYNCREATE( CLogHndlr )

	// Services - Message Handling method(s)
	public :
		virtual	INT HandleMessage( LPCSTR, INT = INFO_TYPE, DWORD = 0 ); 

	// Services - Log file Get/Set method(s)
	public :
		INT SetLogFile( LPCSTR );
		INT GetLogFile( CString & );

	protected :
		// Protected constructor
		CLogHndlr();

	private :
		// Private Copy constructor and Assignment operator, to hide it from clients
		CLogHndlr( const CLogHndlr & );
		CLogHndlr & operator = ( const CLogHndlr & );

	// Attributes
	protected :
		CString		m_csLogFile;
};
#endif