crc32dynamic.h

来自「在远距离数据通信中」· C头文件 代码 · 共 29 行

#ifndef _CRC32DYNAMIC_H_
#define _CRC32DYNAMIC_H_

#include "Common.h"

class CCrc32Dynamic
{
public:
	CCrc32Dynamic();
	virtual ~CCrc32Dynamic();

	void Init(void);
	void Free(void);

	DWORD StringCrc32(LPCTSTR szString, DWORD &dwCrc32) const;
	DWORD FileCrc32Streams(LPCTSTR szFilename, DWORD &dwCrc32) const;
	DWORD FileCrc32Win32(LPCTSTR szFilename, DWORD &dwCrc32) const;
	DWORD FileCrc32Filemap(LPCTSTR szFilename, DWORD &dwCrc32) const;
	DWORD FileCrc32Assembly(LPCTSTR szFilename, DWORD &dwCrc32) const;

protected:
	static bool GetFileSizeQW(const HANDLE hFile, QWORD &qwSize);
	inline void CalcCrc32(const BYTE byte, DWORD &dwCrc32) const;

	DWORD *m_pdwCrc32Table;
};

#endif