gusucode.com > VC++ 多线程文件下载程序源代码-源码程序 > VC++ 多线程文件下载程序源代码-源码程序/code/FtpDownDlg.cpp
// FtpDownDlg.cpp : implementation file // Download by http://www.NewXing.com #include "stdafx.h" #include "FtpDown.h" #include "FtpDownDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: CAboutDlg(); // Dialog Data //{{AFX_DATA(CAboutDlg) enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL // Implementation protected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) // No message handlers //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CFtpDownDlg dialog CFtpDownDlg::CFtpDownDlg(CWnd* pParent /*=NULL*/) : CDialog(CFtpDownDlg::IDD, pParent),m_ThreadCount(4) { //{{AFX_DATA_INIT(CFtpDownDlg) m_Dir = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); m_pHthread = new HANDLE[m_ThreadCount]; m_pData = new void*[m_ThreadCount]; m_pEvent = new CEvent[m_ThreadCount]; } void CFtpDownDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CFtpDownDlg) DDX_Control(pDX, IDC_LIST1, m_List); DDX_Text(pDX, IDC_DIR, m_Dir); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CFtpDownDlg, CDialog) //{{AFX_MSG_MAP(CFtpDownDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_DOWNLOAD, OnDownload) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CFtpDownDlg message handlers BOOL CFtpDownDlg::OnInitDialog() { CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } } // Set the icon for this dialog. The framework does this automatically // when the application's main window is not a dialog SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon m_List.SetExtendedStyle(LVS_EX_FLATSB|LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES |LVS_EX_TWOCLICKACTIVATE); m_List.InsertColumn(0,"文件名称",LVCFMT_LEFT,100); m_List.InsertColumn(1,"开始时间",LVCFMT_LEFT,150); m_List.InsertColumn(2,"目标文件",LVCFMT_LEFT,150); return TRUE; // return TRUE unless you set the focus to a control } void CFtpDownDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } // If you add a minimize button to your dialog, you will need the code below // to draw the icon. For MFC applications using the document/view model, // this is automatically done for you by the framework. void CFtpDownDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } // The system calls this to obtain the cursor to display while the user drags // the minimized window. HCURSOR CFtpDownDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CFtpDownDlg::OnOK() { } //线程函数 DWORD WINAPI ThreadProc(LPVOID lpParameter ) { int index = *(int*)lpParameter; delete lpParameter; CInternetSession * pSession = new CInternetSession; CHttpConnection * pFtpCon = pSession->GetHttpConnection("127.0.0.1"); CFtpDownDlg* pDlg = (CFtpDownDlg*)AfxGetMainWnd(); CInternetFile* pFile = (CInternetFile*)pSession->OpenURL(pDlg->m_Dir); DWORD readsize; if (index < pDlg->m_ThreadCount-1) readsize = pDlg->m_PerFileSize; else readsize = pDlg->m_EndFileSize; pFile->Seek(index*pDlg->m_PerFileSize,FILE_BEGIN); pDlg->m_pData[index] = LocalAlloc(LMEM_FIXED,readsize); pFile->Read(pDlg->m_pData[index],readsize); delete pFile; delete pFtpCon; delete pSession; pDlg->m_pEvent[index].SetEvent(); return 0; } void CFtpDownDlg::OnDownload() { UpdateData(TRUE); if (m_Dir.IsEmpty()) { MessageBox("请输入下载路径"); return; } CInternetSession * pSession = new CInternetSession; CHttpConnection * pFtpCon = pSession->GetHttpConnection("127.0.0.1"); try { CStdioFile * pstdFile = pSession->OpenURL(m_Dir); if (pstdFile != NULL) { MessageBox("地址存在"); } else { MessageBox("地址不存在"); } } catch(...) { MessageBox("地址不存在"); } // CInternetFile* pFile = (CInternetFile*)pSession->OpenURL(m_Dir,1,INTERNET_FLAG_TRANSFER_BINARY|INTERNET_FLAG_RELOAD); /* DWORD len = pFile->SeekToEnd(); //确定划分几个线程下载 //每个线程应下载的文件大小 m_PerFileSize= len / m_ThreadCount; m_EndFileSize = m_PerFileSize+ len % m_ThreadCount; delete pFile; delete pFtpCon; delete pSession; int pos = m_Dir.ReverseFind('/'); CString filename = m_Dir.Right(m_Dir.GetLength()-pos-1); m_List.InsertItem(m_List.GetItemCount(),""); m_List.SetItemText(m_List.GetItemCount()-1,0,filename); CString time = CTime::GetCurrentTime().Format("%H:%M:%S"); m_List.SetItemText(m_List.GetItemCount()-1,1,time); m_List.SetItemText(m_List.GetItemCount()-1,2,"C:\\"+filename); for (int i = 0; i<m_ThreadCount; i++) { int* temp = new int ; *temp = i; m_pEvent[i].ResetEvent(); m_pHthread[i] = CreateThread(NULL,0,ThreadProc,temp,0,NULL); } for (int n = 0 ; n< m_ThreadCount; n++) { WaitForSingleObject(m_pEvent[n],INFINITE); } CFile file ("c:\\"+filename,CFile::modeCreate|CFile::modeWrite); DWORD readsize; for (int m = 0; m<m_ThreadCount; m++) { if (m < m_ThreadCount-1) readsize = m_PerFileSize; else readsize = m_EndFileSize; file.Write(m_pData[m],readsize); } delete[] m_pData; m_pData = new void*[m_ThreadCount]; */ } void CFtpDownDlg::OnCancel() { delete[] m_pData; delete[] m_pHthread; delete[] m_pEvent; CDialog::OnCancel(); }