91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
#ifndef __FILE_CLASS__H__
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#define __FILE_CLASS__H__
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class CFileBase
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{
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public:
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enum OpenFlags {
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modeRead = 0x0000,
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modeWrite = 0x0001,
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modeReadWrite = 0x0002,
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shareCompat = 0x0000,
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shareExclusive = 0x0010,
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shareDenyWrite = 0x0020,
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shareDenyRead = 0x0030,
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shareDenyNone = 0x0040,
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modeNoInherit = 0x0080,
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modeCreate = 0x1000,
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modeNoTruncate = 0x2000,
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};
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enum Attribute {
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normal = 0x00,
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readOnly = 0x01,
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hidden = 0x02,
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system = 0x04,
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volume = 0x08,
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directory = 0x10,
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archive = 0x20
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};
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enum SeekPosition { begin = 0x0, current = 0x1, end = 0x2 };
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virtual bool Open(LPCTSTR lpszFileName, ULONG nOpenFlags ) = 0;
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virtual ULONG GetPosition() const = 0;
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virtual long Seek(long lOff, SeekPosition nFrom) = 0;
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virtual bool SetLength(ULONG dwNewLen) = 0;
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virtual ULONG GetLength() const = 0;
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virtual ULONG Read(void* lpBuf, ULONG nCount) = 0;
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virtual bool Write(const void* lpBuf, ULONG nCount) = 0;
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virtual bool Flush() = 0;
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virtual bool Close() = 0;
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virtual bool IsOpen() const = 0;
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virtual bool SetEndOfFile() = 0;
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};
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class CFile : public CFileBase
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{
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// Attributes
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HANDLE m_hFile;
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bool m_bCloseOnDelete;
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public:
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// Flag values
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// Constructors
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CFile();
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CFile(HANDLE hFile);
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CFile(LPCTSTR lpszFileName, ULONG nOpenFlags);
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// Deconstructors
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virtual ~CFile();
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// Operations
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virtual bool Open(LPCTSTR lpszFileName, ULONG nOpenFlags );
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ULONG SeekToEnd ( void );
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void SeekToBegin ( void );
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// Overridables
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virtual ULONG GetPosition() const;
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virtual long Seek(long lOff, SeekPosition nFrom);
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virtual bool SetLength(ULONG dwNewLen);
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virtual ULONG GetLength() const;
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virtual ULONG Read(void* lpBuf, ULONG nCount);
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virtual bool Write(const void* lpBuf, ULONG nCount);
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virtual bool Flush();
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virtual bool Close();
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virtual bool IsOpen() const;
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virtual bool SetEndOfFile();
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};
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#endif
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