hstdfile.h

积下的一点C++编程序库源码

// HStdFile.h: interface for the HStdFile class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_HSTDFILE_H__557FCDD5_EEB1_4421_87BC_D423D0457FBA__INCLUDED_)
#define AFX_HSTDFILE_H__557FCDD5_EEB1_4421_87BC_D423D0457FBA__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
//文件名		: HStdFile.h

//功能			: 简单的C库文件操作

//创建			: 2004.4.8


//作者			: 韩国静
//

#include "stdio.h"
#include "./public/UniType.h"

class HStdFile  
{

	FILE * m_hFile;
public:
	UNI_BOOL IsOpened(){return m_hFile?UNI_TRUE:UNI_FALSE;}
	void Close()
	{
		if(this->m_hFile)
		{
			fclose(m_hFile);
			m_hFile=UNI_NULL;
		}
	};
	UNI_BOOL	GetFileSize(UNI_DWORD &dwFileSize)
	{
		if(m_hFile)
		{
			long pos=ftell(this->m_hFile );
			if(0==fseek(this->m_hFile,0,SEEK_END))
			{
				dwFileSize=(UNI_DWORD)ftell(m_hFile);
				fseek(m_hFile,pos,SEEK_SET);
				return UNI_TRUE;
			}
		}
		return UNI_FALSE;
	};	
	UNI_DWORD	Write(void *pInBuf,UNI_DWORD dwSizeWrite)
	{
		if(pInBuf==UNI_NULL)
			return 0;
		return (UNI_DWORD)fwrite(pInBuf,1,dwSizeWrite,this->m_hFile);
	};
	UNI_DWORD	WriteAt(void *pInBuf,UNI_DWORD dwSizeWrite,UNI_INT pos)
	{
		if(pInBuf!=UNI_NULL && dwSizeWrite!=0 && pos==fseek(m_hFile,pos,SEEK_SET))
		{
			return (UNI_DWORD)fwrite(pInBuf,1,dwSizeWrite,this->m_hFile);
		}
		return 0;
	};
	UNI_DWORD	Read(void *pOutBuf,UNI_DWORD dwSizeRead)
	{
		if(pOutBuf==UNI_NULL)
			return UNI_FALSE;
		return (UNI_DWORD)fread(pOutBuf,1,dwSizeRead,this->m_hFile);
	};
	UNI_DWORD	ReadAt(void *pOutBuf,UNI_DWORD dwSizeRead,UNI_INT pos)
	{
		if(pOutBuf!=UNI_NULL && dwSizeRead!=0 && pos==fseek(m_hFile,pos,SEEK_SET))
		{
			return (UNI_DWORD)fread(pOutBuf,1,dwSizeRead,this->m_hFile);
		}
		return 0;
	}
	UNI_BOOL	CreateNew(char *pFileName)
	{
		Close();
		m_hFile=fopen(pFileName,"w+b");
		return m_hFile?UNI_TRUE:UNI_FALSE;
		
	};	

	UNI_BOOL	OpenForAppend(char *pFileName)
	{
		Close();
		m_hFile=fopen(pFileName,"ab");
		return m_hFile?UNI_TRUE:UNI_FALSE;
		
	};
	
	UNI_BOOL	OpenForReadWrite(char *pFileName)
	{
		Close();
		m_hFile=fopen(pFileName,"r+b");
		return m_hFile?UNI_TRUE:UNI_FALSE;
		
	};
	
	UNI_BOOL	OpenForRead(char *pFileName)
	{
		Close();
		m_hFile=fopen(pFileName,"rb");
		return m_hFile?UNI_TRUE:UNI_FALSE;
		
	};
	
	HStdFile()
	{
		m_hFile=UNI_NULL;
	};
	virtual ~HStdFile()
	{
		Close();
	};

};

#endif // !defined(AFX_HSTDFILE_H__557FCDD5_EEB1_4421_87BC_D423D0457FBA__INCLUDED_)