project64/Source/Common/FileClass.h

82 lines
2.2 KiB
C++

#pragma once
#include "stdtypes.h"
class CFileBase
{
public:
enum OpenFlags
{
modeRead = 0x0000,
modeWrite = 0x0001,
modeReadWrite = 0x0002,
shareCompat = 0x0000,
shareExclusive = 0x0010,
shareDenyWrite = 0x0020,
shareDenyRead = 0x0030,
shareDenyNone = 0x0040,
modeNoInherit = 0x0080,
modeCreate = 0x1000,
modeNoTruncate = 0x2000,
};
enum SeekPosition { begin = 0x0, current = 0x1, end = 0x2 };
virtual bool Open(const char * lpszFileName, uint32_t nOpenFlags ) = 0;
virtual uint32_t GetPosition() const = 0;
virtual int32_t Seek(int32_t lOff, SeekPosition nFrom) = 0;
virtual bool SetLength(uint32_t dwNewLen) = 0;
virtual uint32_t GetLength() const = 0;
virtual uint32_t Read(void* lpBuf, uint32_t nCount) = 0;
virtual bool Write(const void* lpBuf, uint32_t nCount) = 0;
virtual bool Flush() = 0;
virtual bool Close() = 0;
virtual bool IsOpen() const = 0;
virtual bool SetEndOfFile() = 0;
};
class CFile : public CFileBase
{
// Attributes
void * m_hFile;
bool m_bCloseOnDelete;
public:
// Flag values
// Constructors
CFile();
CFile(void * hFile);
CFile(const char * lpszFileName, uint32_t nOpenFlags);
// Deconstructors
virtual ~CFile();
// Operations
virtual bool Open(const char * lpszFileName, uint32_t nOpenFlags );
uint32_t SeekToEnd ( void );
void SeekToBegin ( void );
// Overridables
virtual uint32_t GetPosition() const;
virtual int32_t Seek(int32_t lOff, SeekPosition nFrom);
virtual bool SetLength(uint32_t dwNewLen);
virtual uint32_t GetLength() const;
virtual uint32_t Read(void* lpBuf, uint32_t nCount);
virtual bool Write(const void* lpBuf, uint32_t nCount);
virtual bool Flush();
virtual bool Close();
virtual bool IsOpen() const;
virtual bool SetEndOfFile();
private:
CFile(const CFile&); // Disable copy constructor
CFile& operator=(const CFile&); // Disable assignment
};