winsocket 全双工

// WinSockServerDlg.cpp : implementation file // #include "stdafx.h" #include "WinSockServer.h" #include "WinSockServerDlg.h" #include <winsock.h> #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About //CSocketListen *m_sAcceptSocket = new CSocketListen; 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() ///////////////////////////////////////////////////////////////////////////// // CWinSockServerDlg dialog CWinSockServerDlg::CWinSockServerDlg(CWnd* pParent /*=NULL*/) : CDialog(CWinSockServerDlg::IDD, pParent) { //{{AFX_DATA_INIT(CWinSockServerDlg) m_strChat = _T(""); m_iPort = 1001; //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CWinSockServerDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CWinSockServerDlg) DDX_Control(pDX, IDC_Exit, m_ctlExit); DDX_Control(pDX, IDC_Chat, m_lstChat); DDX_Control(pDX, IDC_End, m_ctlEnd); DDX_Control(pDX, IDC_Clear, m_ctlClear); DDX_Control(pDX, IDC_Start, m_btnStart); DDX_Control(pDX, IDC_ServerPort, m_ctlPort); DDX_LBString(pDX, IDC_Chat, m_strChat); DDX_Text(pDX, IDC_ServerPort, m_iPort); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CWinSockServerDlg, CDialog) //{{AFX_MSG_MAP(CWinSockServerDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_Start, OnStart) ON_BN_CLICKED(IDC_End, OnEnd) ON_BN_CLICKED(IDC_Exit, OnExit) ON_WM_CLOSE() ON_BN_CLICKED(IDC_Clear, OnClear) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CWinSockServerDlg message handlers BOOL CWinSockServerDlg::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 // TODO: Add extra initialization here //设置窗体标题， //AfxGetApp()->m_pMainWnd->SetWindowText();简写如下条语句。 SetWindowText("服务器端程序"); //将自定义的SocketListen类与对话框相关联 m_sListenSocket.SetParent(this); //m_sAcceptSocket.SetParent(this); //初始的时候，“结束服务”按钮不可用 m_ctlEnd.EnableWindow(false); return TRUE; // return TRUE unless you set the focus to a control } void CWinSockServerDlg::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 CWinSockServerDlg::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 CWinSockServerDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CWinSockServerDlg::OnOK() { // TODO: Add extra validation here //屏蔽CDialog类的OnOk函数，不响应Enter按键 //CDialog::OnOK(); } void CWinSockServerDlg::OnCancel() { // TODO: Add extra cleanup here //屏蔽CDialog类的OnCancel函数，不响应Esc按键 //CDialog::OnCancel(); } void CWinSockServerDlg::OnStart() { // TODO: Add your control notification handler code here //获取端口号 UpdateData(true); //服务开启后，端口号和该按钮禁用 m_ctlPort.EnableWindow(false); m_btnStart.EnableWindow(false); //“结束服务”按钮可用 m_ctlEnd.EnableWindow(true); //创建服务器端套接字，Create函数的第二个关键字指明基于TCP协议 m_sListenSocket.Create(m_iPort, SOCK_STREAM); m_sListenSocket.Listen(); } void CWinSockServerDlg::OnEnd() { // TODO: Add your control notification handler code here m_sListenSocket.Close(); int i; for(i=0; i< m_sAcceptSocketA.GetCount(); i++) { m_sAcceptSocketA.GetAt(m_sAcceptSocketA.FindIndex(i))->Close(); } //m_sAcceptSocket.Close(); //结束服务后，端口号和开启服务的按钮可用 m_ctlPort.EnableWindow(true); m_btnStart.EnableWindow(true); //“结束服务”按钮不可用 m_ctlEnd.EnableWindow(false); } void CWinSockServerDlg::OnExit() { // TODO: Add your control notification handler code here OnEnd(); CDialog::OnOK(); } void CWinSockServerDlg::OnClose() { // TODO: Add your message handler code here and/or call default //在单击窗体上的关闭按钮的时候能够正确关闭窗体 OnEnd(); CDialog::OnCancel(); } //与Socket类相关的事件函数 void CWinSockServerDlg::OnAccept() { int i; i = m_sAcceptSocketA.GetCount();; CSocketListen *m_sAcceptSocket = new CSocketListen; m_sAcceptSocket->SetParent(this); if(i < 5) { m_sAcceptSocketA.AddTail(m_sAcceptSocket); i = m_sAcceptSocketA.GetCount(); } else if(i >= 5 || i<=0) { AfxMessageBox("连接客户数太多了!"); delete m_sAcceptSocket; return; } m_sListenSocket.Accept(*m_sAcceptSocketA.GetAt(m_sAcceptSocketA.FindIndex(i-1))); } void CWinSockServerDlg::OnSend() { } void CWinSockServerDlg::OnSocketClose(CSocketListen *pSocket) { CString strSend;//发送的字符串 int iLen; int iSend; DWORD dwIp;//网络顺序形式的IP地址 CString strIp;//连接方IP地址 CString strName;//连接方主机名 char *pName = new char[256]; UINT iPort; int iErr; struct hostent FAR *pHost; iErr = pSocket->GetPeerName(strIp, iPort); //如果上条语句执行正确的话，执行下列语句 if(iErr != SOCKET_ERROR) { //取得网络顺序的IP值 dwIp = inet_addr(strIp); //获取主机名称,注意其中第一个参数的转化 pHost = gethostbyaddr((LPSTR)&dwIp, 4, AF_INET); memcpy(pName, pHost->h_name, 256); strName = pName; } else { delete pName; return; } strSend = strName + "["+ strIp+ "]: " + "已经退出本系统！"; iLen = strSend.GetLength(); m_sAcceptSocketA.RemoveAt(m_sAcceptSocketA.Find(pSocket)); pSocket->Close();