logfile.h

MudMaster 2000 的C++源码

/************************************************************************************
	Copyright (c) 2000 Aaron O'Neil
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:

		1) Redistributions of source code must retain the above copyright notice, 
				this list of conditions and the following disclaimer.
		2) Redistributions in binary form must reproduce the above copyright notice, 
				this list of conditions and the following disclaimer in the documentation
				and/or other materials provided with the distribution.
		3) Redistributions in binary form must reproduce the above copyright notice on
				program startup. Additional credits for program modification are acceptable
				but original copyright and credits must be visible at startup.
		4) You may charge a reasonable copying fee for any distribution of Mud Master. 
				You may charge any fee you choose for support of Mud Master. You may not 
				charge a fee for Mud Master itself.

  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

**************************************************************************************/

#define LOG_FILE_BUF_SIZE		5000

class CLogFile
{
public:
	CLogFile();
	~CLogFile();

	// Open the disk file and allocated the buffer.
	BOOL Open(const char *pszFilename, BOOL bAppendFile=FALSE);

	// Closes the diskfile and frees the buffer.
	void Close();

	// Writes a null terminated string to the file.  Appends
	// a \r\n pair to the end of the string.
	void Write(const char *pszText);

	// Writes a null terminated string to the file.  Does not append
	// a \r\n pair to the end of the string.
	void WriteRaw(const char *pszText);

	unsigned long GetBytesWritten()	{ return(m_lBytesWritten); }
	CString GetFilename()				{ return(m_strFilename); }

	BOOL IsOpen()							{ return(m_bFileOpen); }

private:
	// Write calls this function to add the characters to the
	// buffer.  When the buffer is full it is written to the
	// disk.
	void WriteChar(char ch);

	CString m_strFilename;
	unsigned long m_lBytesWritten;

	char *m_pBuffer;
	int m_nBytesInBuffer;

	CFile m_file;
	BOOL m_bFileOpen;
};