tcpclientdlg.cpp

SOCKET客户端和服务器端程序,我们课题组用来做嵌入式开发时的网络测试

// TCPClientDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TCPClient.h"
#include "TCPClientDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

int sFd;
// Message to send for update
#define WM_UPDATE    (WM_USER+100) 
// receive count and length
int nRxCount = 0,nRxLength = 0;
// data buffer
BYTE byRcvData[1024];
// window handler
HWND myhWnd;
// receive thread
UINT RcvThread(LPVOID lParam);
// receive enable flag
BOOL rcvFlag = FALSE;

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CTCPClientDlg dialog

CTCPClientDlg::CTCPClientDlg(CWnd* pParent /*=NULL*/)
: CDialog(CTCPClientDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTCPClientDlg)
	m_strServerName = _T("172.16.11.230");
	m_nServerPort = 8000;
	m_bTimer = FALSE;
	m_nSendCount = 0;
	m_nTimerInterval = 500;
	m_nRcvLength = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTCPClientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTCPClientDlg)
	DDX_Control(pDX, IDC_LIST, m_list);
	DDX_Control(pDX, IDC_BUTTON_SEND, m_btnSend);
	DDX_Text(pDX, IDC_EDIT_SERVER_NAME, m_strServerName);
	DDX_Text(pDX, IDC_EDIT_SERVER_PORT, m_nServerPort);
	DDX_Check(pDX, IDC_CHECK, m_bTimer);
	DDX_Text(pDX, IDC_EDIT_SEND_COUNT, m_nSendCount);
	DDX_Text(pDX, IDC_EDIT_TIMER_INTERVAL, m_nTimerInterval);
	DDX_Text(pDX, IDC_EDIT_RCV_LENGTH, m_nRcvLength);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTCPClientDlg, CDialog)
//{{AFX_MSG_MAP(CTCPClientDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON_CONNECT, OnButtonConnect)
ON_BN_CLICKED(IDC_BUTTON_SEND, OnButtonSend)
	ON_BN_CLICKED(IDC_CHECK, OnCheck)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_BUTTON_RCV, OnButtonRcv)
ON_MESSAGE( WM_UPDATE, RcvUpdate )
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTCPClientDlg message handlers

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

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

//////////////////////////////////////////////////////////////////////////////
// 
void CTCPClientDlg::OnButtonConnect() 
{
	UpdateData(TRUE);
	struct sockaddr_in serverAddr; /* server's socket address */
	int count;
	
	count = 0;
	HOSTENT* host;	
	/* create client's socket */
	if ((sFd = socket (AF_INET, SOCK_STREAM, 0)) == ERROR)
	{
		AfxMessageBox("Client socket create failed!\n");
		return;
	}	
	
	host = gethostbyname(m_strServerName); 
	if(host == NULL) 
	{ 
		AfxMessageBox("Got host name failed!\n");
		closesocket(sFd);
		return ; 
	}
	
	memcpy(&serverAddr.sin_addr,host->h_addr_list[0],host->h_length); 
	//will # 
	serverAddr.sin_addr.S_un.S_addr = inet_addr("172.16.11.230"); 
	//will # 
	serverAddr.sin_family = AF_INET; 
	serverAddr.sin_port = htons(m_nServerPort); 
	
	if(connect(sFd,(sockaddr*)&serverAddr,sizeof(serverAddr)) != 0) 
	{	
		AfxMessageBox("Connect to server failed!\n");
		closesocket(sFd);
		return; 
	} 
}

/////////////////////////////////////////////////////////////////////////////
//
void CTCPClientDlg::OnButtonSend() 
{
	m_nSendCount++;
	myhWnd = this->m_hWnd;

	for(int i=0;i<64;i++)
		m_bySendData[i] = m_nSendCount;
	
	/* send request to server */
	if (send(sFd, (char*)&m_bySendData, sizeof (m_bySendData),0) == ERROR)
	{
		closesocket (sFd);
		return ;
	}
	UpdateData(FALSE);
}

/////////////////////////////////////////////////////////////////////////////
// Start timer
void CTCPClientDlg::OnCheck() 
{
	UpdateData(TRUE);
	if(m_bTimer == TRUE)
	{
		SetTimer(1,m_nTimerInterval,NULL);
		m_btnSend.EnableWindow(FALSE);
	}
	else
	{
		KillTimer(1);
		m_btnSend.EnableWindow(TRUE);
	}
}

//////////////////////////////////////////////////////////////////////////////
// Timer function
void CTCPClientDlg::OnTimer(UINT nIDEvent) 
{
	m_nSendCount++;
	for(int i=0;i<1024;i++)
		m_bySendData[i] = m_nSendCount + i;
	
	/* send request to server */
	if (send(sFd, (char*)&m_bySendData, sizeof (m_bySendData),0) == ERROR)
	{
		closesocket (sFd);
		return ;
	}
	UpdateData(FALSE);
	CDialog::OnTimer(nIDEvent);
}

////////////////////////////////////////////////////////////////////////////////
// quit
void CTCPClientDlg::OnOK() 
{
	closesocket (sFd);
	rcvFlag = FALSE;
	Sleep(100);
	if(m_pThread != NULL)
		TerminateThread(m_pThread,0);
	if(sFd != 0)
		closesocket(sFd);
	CDialog::OnOK();
}

///////////////////////////////////////////////////////////////////////////////////
// Receive thread
UINT RcvThread(LPVOID lParam)
{
	int nCurLength;
	// Receive data
	while(rcvFlag)
	{
		nCurLength = recv(sFd,(char*)byRcvData,sizeof(byRcvData),0);
		nRxLength += nCurLength;
		if(nCurLength == 0)
		{
			Sleep(1);
		}
		else
		{
			nRxCount++;
			::PostMessage(myhWnd,WM_UPDATE,0,0);
		}
	}
	return 0;
}

////////////////////////////////////////////////////////////////

void CTCPClientDlg::OnButtonRcv() 
{
	// enable receive 
	rcvFlag = TRUE;
	m_pThread = AfxBeginThread(RcvThread,0);
	if(m_pThread == NULL)
	{
		AfxMessageBox("Thread begin failed!\n");
	}
	// Clear
	for(int i=0;i<=m_list.GetCount();i++)
		m_list.DeleteString(0);
}

///////////////////////////////////////////////////////////////////////////////////
// Update
void CTCPClientDlg::RcvUpdate(WPARAM wParam, LPARAM lParam)
{
	int i,count;
	CString str;
	count = m_list.GetCount();
	m_nRcvLength = nRxLength;
	// Clear
	for(i=0;i<=count;i++)
		m_list.DeleteString(0);
	
	for(i=0;i<8;i++)
	{
		str.Format("%02x %02x %02x %02x %02x %02x %02x %02x\n",
				   byRcvData[0+8*i],
				   byRcvData[1+8*i],
				   byRcvData[2+8*i],
				   byRcvData[3+8*i],
				   byRcvData[4+8*i],
				   byRcvData[5+8*i],
				   byRcvData[6+8*i],
				   byRcvData[7+8*i]);
		m_list.AddString(str);
	}
		UpdateData(FALSE);

}