netcomputedlg.cpp

本程序是用winsock API函数编写网络部分

// NetComputeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "NetCompute.h"
#include "NetComputeDlg.h"

const unsigned port = 34567;

#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()

/////////////////////////////////////////////////////////////////////////////
// CNetComputeDlg dialog

CNetComputeDlg::CNetComputeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CNetComputeDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CNetComputeDlg)
	m_dData2 = 0.0;
	m_dData1 = 0.0;
	m_serverType = 0;
	m_protocolType = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_strLocalName = _T("");
	m_strLocalIP = _T("");
}

void CNetComputeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CNetComputeDlg)
	DDX_Control(pDX, IDC_CONTENT, m_lcContent);
	DDX_Control(pDX, IDC_IPCTL, m_ipCtl);
	DDX_Text(pDX, IDC_DATA2, m_dData2);
	DDX_Text(pDX, IDC_DATA1, m_dData1);
	DDX_Radio(pDX, IDC_SERVER, m_serverType);
	DDX_Radio(pDX, IDC_TCP, m_protocolType);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CNetComputeDlg, CDialog)
	//{{AFX_MSG_MAP(CNetComputeDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_START, OnStart)
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_BN_CLICKED(IDC_RESET, OnReset)
	ON_BN_CLICKED(IDC_TCP, OnTCP)
	ON_BN_CLICKED(IDC_UDP, OnUDP)
	ON_BN_CLICKED(IDC_SERVER, OnServer)
	ON_BN_CLICKED(IDC_CLIENT, OnClient)
	ON_BN_CLICKED(IDC_CLOSE, OnClose)

	ON_MESSAGE(SERVER_TCP_EVENT, OnServerTCPEvent)
	ON_MESSAGE(SERVER_UDP_EVENT, OnServerUDPEvent)
	ON_MESSAGE(CLIENT_TCP_EVENT, OnClientTCPEvent)
	ON_MESSAGE(CLIENT_UDP_EVENT, OnClientUDPEvent)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CNetComputeDlg message handlers

BOOL CNetComputeDlg::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
	GetLocalHostName(m_strLocalName);
	SetWindowText(_T("TCP协议服务器端------你好!") + m_strLocalName);
	GetIpAddress(m_strLocalName, m_strLocalIP);
	m_ipCtl.SetWindowText(m_strLocalIP);
	//
	m_lcContent.InsertColumn(0, _T("")"", LVCFMT_LEFT, 1500);
	//
	GetDlgItem(IDC_CLOSE)->EnableWindow(FALSE);
	GetDlgItem(IDC_DATA1)->EnableWindow(FALSE);
	GetDlgItem(IDC_DATA2)->EnableWindow(FALSE);
	GetDlgItem(IDC_SEND)->EnableWindow(FALSE);

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CNetComputeDlg::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 CNetComputeDlg::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 CNetComputeDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

/////////////////////////////////////////////////////////////
//启动网络服务，服务器端以及客户端
void CNetComputeDlg::OnStart() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	//服务器端
	if (m_serverType == 0)
	{
		//TCP协议
		if (m_protocolType == 0)
		{
			WSADATA wsaData;
			BOOL ret = WSAStartup(MAKEWORD(2,1), &wsaData);
			if (ret != 0)
			{
				m_lcContent.InsertItem(0,_T("初始化套接字失败!"));
				return;
			}
			m_lcContent.InsertItem( 0, _T("成功初始化套接字!"));
			m_serverSocket = socket(AF_INET, SOCK_STREAM, 0);
			if (m_serverSocket == INVALID_SOCKET)
			{
				m_lcContent.InsertItem(0,_T("创建套接字失败!"));
				closesocket(m_serverSocket);
				WSACleanup();
				return;
			}
			m_lcContent.InsertItem(0,_T("成功创建套接字!"));
			sockaddr_in localaddr;
			localaddr.sin_family = AF_INET;
			localaddr.sin_port = htons(port);
			CString str;
			m_ipCtl.GetWindowText(str);
			localaddr.sin_addr.s_addr = inet_addr(str);
			if (bind(m_serverSocket, (const struct sockaddr*)&localaddr, sizeof(sockaddr)) == SOCKET_ERROR)
			{
				m_lcContent.InsertItem(0,_T("服务器端绑定地址失败!"));
				closesocket(m_serverSocket);
				WSACleanup();
				return;
			}
			m_lcContent.InsertItem(0,_T("服务器端成功绑定地址!"));
			//注册网络异步事件，m_hWnd为应用程序的主对话框或主窗口的句柄
			WSAAsyncSelect(m_serverSocket, m_hWnd, SERVER_TCP_EVENT, FD_CLOSE | FD_READ | FD_ACCEPT);
			//设置侦听模式
            listen(m_serverSocket, 1);
			m_lcContent.InsertItem( 0, _T("监听中。。。"));
		}
		//UDP协议
		else
		{
			WSADATA wsaData;
			BOOL ret = WSAStartup(MAKEWORD(2,1), &wsaData);
			if (ret != 0)
			{
				m_lcContent.InsertItem(0,_T("初始化套接字失败!"));
				return;
			}
			m_lcContent.InsertItem( 0, _T("成功初始化套接字!"));
			m_serverSocket = socket(AF_INET, SOCK_DGRAM, 0);
			if (m_serverSocket == INVALID_SOCKET)
			{
				m_lcContent.InsertItem(0,_T("创建套接字失败!"));
				closesocket(m_serverSocket);
				WSACleanup();
				return;
			}
			m_lcContent.InsertItem(0, _T("成功创建套接字!"));
			m_serveraddr.sin_family = AF_INET;
			m_serveraddr.sin_port = htons(port);
			CString str;
			m_ipCtl.GetWindowText(str);
			m_serveraddr.sin_addr.s_addr = inet_addr(str);
			//本地主机与本机IP相连
			if (bind(m_serverSocket, (const sockaddr*)&m_serveraddr, sizeof(sockaddr)) == SOCKET_ERROR)
			{
				m_lcContent.InsertItem(0,_T("服务器端绑定地址失败!"));
				closesocket(m_serverSocket);
				WSACleanup();
				return;
			}
			m_lcContent.InsertItem(0,_T("服务器端成功绑定地址!"));
			//注册网络事件
			WSAAsyncSelect(m_serverSocket, m_hWnd, SERVER_UDP_EVENT, FD_READ);
		}
	}
	//客户端
	else
	{
		//TCP协议
		if (m_protocolType == 0)
		{
			WSADATA wsaData;
			if (WSAStartup(MAKEWORD(2,1),&wsaData)) 
			{ 
				WSACleanup();
				m_lcContent.InsertItem(0,_T("初始化套接字失败!"));
				return;
			}
			m_lcContent.InsertItem(0,_T("成功初始化套接字!"));
			m_serverSocket = socket(AF_INET,SOCK_STREAM,0);
			if(m_serverSocket == INVALID_SOCKET)
			{
				m_lcContent.InsertItem(0,_T("创建套接字失败!"));
			    return;
			}
			m_lcContent.InsertItem(0,_T("成功创建套接字!"));
			CString str;
			m_ipCtl.GetWindowText(str);
			m_serveraddr.sin_family=AF_INET; 
			m_serveraddr.sin_port = htons(port);
			m_serveraddr.sin_addr.S_un.S_addr = inet_addr(str);

			if(connect(m_serverSocket,(const sockaddr*)&m_serveraddr,sizeof(m_serveraddr)) == SOCKET_ERROR)
			{
				m_lcContent.InsertItem(0,_T("连接服务器失败!"));
				return;
			}
			m_lcContent.InsertItem(0,_T("成功连接服务器!"));
			WSAAsyncSelect(m_serverSocket, m_hWnd, CLIENT_TCP_EVENT, FD_READ);
		}
		//UDP协议
		else
		{
			WSADATA wsaData;
			if (WSAStartup(MAKEWORD(2,1),&wsaData)) 
			{ 
				WSACleanup();
				m_lcContent.InsertItem(0,_T("初始化套接字失败!"));
				return;
			}
			m_lcContent.InsertItem(0,_T("成功初始化套接字!"));
			m_serverSocket = socket(AF_INET,SOCK_DGRAM,0);
			if(m_serverSocket == INVALID_SOCKET)
			{
				m_lcContent.InsertItem(0,_T("创建套接字失败!"));
			    return;
			}