recvdlg.cpp

tcp、winsock编程

// recvDlg.cpp : implementation file
//

#include "stdafx.h"
#include "recv.h"
#include "recvDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
volatile int threadController;
char* name;
/////////////////////////////////////////////////////////////////////////////
// CRecvDlg dialog

CRecvDlg::CRecvDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CRecvDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CRecvDlg)
	m_tmp = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CRecvDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CRecvDlg)
	DDX_Control(pDX, IDC_LIST1, m_list);
	DDX_Text(pDX, IDC_EDIT1, m_tmp);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRecvDlg, CDialog)
	//{{AFX_MSG_MAP(CRecvDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_COMMAND(ID_MENUITEM32773, OnMenuitem32773)
	ON_COMMAND(ID_MENUITEM32772, OnMenuitem32772)
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_THREADENDED, OnThreadended)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRecvDlg message handlers

BOOL CRecvDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 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
	
	name = new char[256];
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CRecvDlg::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 CRecvDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CRecvDlg::OnButton1() 
{
	WORD wVersionRequested;
	WSAData  wsaData;
	struct sockaddr_in client;
	struct sockaddr_in server;
	char buf[256];
	int s;
	int clientfd;
	int err; 

	//start socket
	wVersionRequested = MAKEWORD( 2, 0 ); 
	err = WSAStartup( wVersionRequested, &wsaData );
	if ( err != 0 ) { 
		MessageBox("0","000",MB_OK);} 
	if ( LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 0 ) {
		MessageBox("1","000",MB_OK);
		WSACleanup( );
		return; 
	}	

	//create socket
	if ((s=socket(AF_INET, SOCK_STREAM,0))<0){
		MessageBox("err","sockr err",MB_OK);
	}
	else
		MessageBox("哈","sockr create ok",MB_OK);

	//bind socket
	server.sin_family = AF_INET;
	server.sin_port = htons(1024);
	server.sin_addr.s_addr = INADDR_ANY;
	if (bind(s, (struct sockaddr *)&server, sizeof(server)) == SOCKET_ERROR){
		MessageBox("err","bind err",MB_OK);
	}
	else
		MessageBox("哈","bind ok",MB_OK);


	int length = sizeof(server);
	if(getsockname(s,(struct sockaddr *)&server,&length) < 0){
		MessageBox("","getsockname_err",MB_OK);
	}
	else
		MessageBox("哈","getsockname ok",MB_OK);

	if(listen(s,1)!=0){
		MessageBox("err","listen err",MB_OK);
    }
	else
		MessageBox("ok","listen ok",MB_OK);


	int tmp=sizeof(server);
	int flag=0;
	int clientnamelen=sizeof(client);
	int pktlentmp;
	int tmpcount = 0;
	CString tmpstr1;
//	LPCTSTR tmpstr1;
//	while(1){
	for(int ii=0;ii<5;ii++){
	if((clientfd=accept(s,(struct sockaddr *)&client,&clientnamelen))==-1){
		MessageBox("err","accept err",MB_OK);
        }
//	else
//		MessageBox("ok","accept ok",MB_OK);

//	int pktlentmp;
//	while(1){
		if ((pktlentmp = recv(clientfd,buf,256,0))<=0){
			MessageBox("err","recv err",MB_OK);
			break;
		}
		else{
//			MessageBox(buf,"recv ok",MB_OK);
			tmpcount++;
			tmpstr1.Format("%s+%d",buf,tmpcount);// = buf;
			m_list.AddString(tmpstr1);
			UpdateData(false);
//			break;
		}
	}
	closesocket(clientfd);
	closesocket(s);

	WSACleanup( );

	
	
}

HANDLE ThreadProc(LPVOID param)
{
	WORD wVersionRequested;
	WSAData  wsaData;
	struct sockaddr_in client;
	struct sockaddr_in server;
	char buf[256];
	int s;
	int clientfd;
	int err; 

	//start socket
	wVersionRequested = MAKEWORD( 2, 0 ); 
	err = WSAStartup( wVersionRequested, &wsaData );
	if ( err != 0 ) return 0;
	if ( LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 0 ) {
		WSACleanup( );
		return 0; 
	}	

	//create socket
	if ((s=socket(AF_INET, SOCK_STREAM,0))<0){
		return 0;
	}

	//bind socket
	server.sin_family = AF_INET;
	server.sin_port = htons(1024);
	server.sin_addr.s_addr = INADDR_ANY;
	if (bind(s, (struct sockaddr *)&server, sizeof(server)) == SOCKET_ERROR){
		return 0;
	}


	int length = sizeof(server);
	if(getsockname(s,(struct sockaddr *)&server,&length) < 0){
		return 0;
	}

	if(listen(s,1)!=0){
		return 0;
    }


	int tmp=sizeof(server);
	int flag=0;
	int clientnamelen=sizeof(client);
	int pktlentmp;
	int tmpcount = 0;
	CString tmpstr1;
//	while(1){
	for(int ii=0;ii<5;ii++){
	if((clientfd=accept(s,(struct sockaddr *)&client,&clientnamelen))==-1){
		return 0;
        }

		if ((pktlentmp = recv(clientfd,buf,256,0))<=0){
		return 0;
			break;
		}
		else{
			tmpcount++;
			tmpstr1.Format("%s+%d",buf,tmpcount);
			strcpy(name,tmpstr1);
			Sleep(20);
			::PostMessage((HWND)param, WM_THREADENDED, 0, 0);
		}
	}
	closesocket(clientfd);
	closesocket(s);

	WSACleanup( );
    ::MessageBox((HWND)param, "Thread stopped.", "Thread", MB_OK);    return NULL;
	return 0;
}

void CRecvDlg::OnButton2() 
{
	HWND hWnd = GetSafeHwnd();
	threadController = 1;
	AfxBeginThread((AFX_THREADPROC)ThreadProc, hWnd, THREAD_PRIORITY_NORMAL);
}


void CRecvDlg::OnMenuitem32773() 
{
	threadController = 0;
}

void CRecvDlg::OnMenuitem32772() 
{
	HWND hWnd = GetSafeHwnd();
	threadController = 1;
	AfxBeginThread((AFX_THREADPROC)ThreadProc, hWnd, THREAD_PRIORITY_NORMAL);
	
}

LONG CRecvDlg::OnThreadended(WPARAM wParam, LPARAM lParam)
{
//	CString tmp;
//	tmp.Format("%d",wParam);
//    AfxMessageBox(tmp);
//    AfxMessageBox("Thread ended.");
	m_list.AddString(_T(name));
	UpdateData(false);
    return 0;
}