httpdownload.h

多线程下载工具可支持http,ftp,https多协议....vc编写

// HTTPDownload.h: interface for the CHTTPDownload class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_HTTPDOWNLOAD_H__12CAB970_269F_4301_9E5A_2596D4618884__INCLUDED_)
#define AFX_HTTPDOWNLOAD_H__12CAB970_269F_4301_9E5A_2596D4618884__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


const UINT	H_LINK_OK			= 0;
const UINT	H_LINK_ERROR		= 1;


typedef struct HTTPDOWNLOADSTATE{

	LONG	range[20];
	LONG    threadsize[10];
	LONG    wcsize[10];
}HTTPDOWNLOADSTATE;


class CHTTPDownload  
{
public:

    CHTTPDownload();
	virtual ~CHTTPDownload();
	void Begin(CString Allurl, CString Saveas, int nParts);
	BOOL AnalyseURL(CString Allurl);
	UINT SendRequest();
	BOOL AnalyseReceive(CString ReadBuf, DWORD &dwContentLength, DWORD &dwStatusCode);
    void CreateThread();
	void Finish();
    void ThreadFunc(int index);
	int GetHeadLength(char* lpData);
	void OnCancel(); 

public:
	
	CString m_strServer;
    CString m_strObject;
	CString m_strSavePath;
	int m_nParts;
	int m_Port;
	CSocket m_pSocket;
	DWORD	m_dwFileSize;
	DWORD   kk[10];
	DWORD   m_sum[10];
	BOOL	m_SupportResume;
	CString   m_strTempSavePath;
    BOOL     m_bResume;
	HTTPDOWNLOADSTATE m_state;
    HANDLE m_hThread[10];
	HANDLE m_hNotify;
	BOOL m_bTerminate[10];
	LONG m_index;

	int linkcode;
	
    
 };

#endif // !defined(AFX_HTTPDOWNLOAD_H__12CAB970_269F_4301_9E5A_2596D4618884__INCLUDED_)