I/O重疊結構服務器代碼

 // server.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "winsock2.h"
#include "server.h"
#include "serverDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CServerApp

BEGIN_MESSAGE_MAP(CServerApp, CWinApp)
 //{{AFX_MSG_MAP(CServerApp)
  // NOTE - the ClassWizard will add and remove mapping macros here.
  //    DO NOT EDIT what you see in these blocks of generated code!
 //}}AFX_MSG
 ON_COMMAND(ID_HELP, CWinApp::OnHelp)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CServerApp construction

CServerApp::CServerApp()
{
 // TODO: add construction code here,
 // Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CServerApp object

CServerApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CServerApp initialization

BOOL CServerApp::InitInstance()
{
 AfxEnableControlContainer();

 // Standard initialization
 // If you are not using these features and wish to reduce the size
 //  of your final executable, you should remove from the following
 //  the specific initialization routines you do not need.

#ifdef _AFXDLL
 Enable3dControls();   // Call this when using MFC in a shared DLL
#else
 Enable3dControlsStatic(); // Call this when linking to MFC statically
#endif

 CServerDlg dlg;
 m_pMainWnd = &dlg;
 int nResponse = dlg.DoModal();
 if (nResponse == IDOK)
 {
  // TODO: Place code here to handle when the dialog is
  //  dismissed with OK
 }
 else if (nResponse == IDCANCEL)
 {
  // TODO: Place code here to handle when the dialog is
  //  dismissed with Cancel
 }

 // Since the dialog has been closed, return FALSE so that we exit the
 //  application, rather than start the application's message pump.
 return FALSE;
}

---

// server.h : main header file for the SERVER application
//

#if !defined(AFX_SERVER_H__3D0F92B0_603A_4906_B31F_770FB2AF3BF9__INCLUDED_)
#define AFX_SERVER_H__3D0F92B0_603A_4906_B31F_770FB2AF3BF9__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#ifndef __AFXWIN_H__
 #error include 'stdafx.h' before including this file for PCH
#endif

#include "resource.h"  // main symbols

/////////////////////////////////////////////////////////////////////////////
// CServerApp:
// See server.cpp for the implementation of this class
//

class CServerApp : public CWinApp
{
public:
 CServerApp();
 int num;
// Overrides
 // ClassWizard generated virtual function overrides
 //{{AFX_VIRTUAL(CServerApp)
 public:
 virtual BOOL InitInstance();
 //}}AFX_VIRTUAL

// Implementation

 //{{AFX_MSG(CServerApp)
  // NOTE - the ClassWizard will add and remove member functions here.
  //    DO NOT EDIT what you see in these blocks of generated code !
 //}}AFX_MSG
 DECLARE_MESSAGE_MAP()
};

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

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_SERVER_H__3D0F92B0_603A_4906_B31F_770FB2AF3BF9__INCLUDED_)

---

// serverDlg.cpp : implementation file
//

#include "stdafx.h"
#include "iostream"
#include "winsock2.h"
#include "mswsock.h"
#include "server.h"
#include "serverDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
UINT LStreadproc(LPVOID lpParam); //監聽線程
UINT AStreadproc(LPVOID lParam); //接收線程
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()

/////////////////////////////////////////////////////////////////////////////
// CServerDlg dialog

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

void CServerDlg::DoDataExchange(CDataExchange* pDX)
{
 CDialog::DoDataExchange(pDX);
 //{{AFX_DATA_MAP(CServerDlg)
 //}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CServerDlg, CDialog)
 //{{AFX_MSG_MAP(CServerDlg)
 ON_WM_SYSCOMMAND()
 ON_WM_PAINT()
 ON_WM_QUERYDRAGICON()
 ON_WM_CLOSE()
 //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CServerDlg message handlers

BOOL CServerDlg::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
 LSeventnum=0; //監聽事件總數
 ASeventnum=0; //接收事件總數
 recvnums=0; //接收的數據大小
 ZeroMemory(&ASoverlapped,sizeof(WSAOVERLAPPED));
 // TODO: Add extra initialization here
 WSADATA wsadata;
 WSAStartup(MAKEWORD(2,2),&wsadata);
 listensock=WSASocket(AF_INET,SOCK_STREAM,0,NULL,0,WSA_FLAG_OVERLAPPED);
 acceptsock=WSASocket(AF_INET,SOCK_STREAM,0,NULL,0,WSA_FLAG_OVERLAPPED);
 SOCKADDR_IN sockaddr;
 sockaddr.sin_family=AF_INET;
 sockaddr.sin_addr.s_addr=htonl(ADDR_ANY);
 sockaddr.sin_port=htons(8589);
 bind(listensock,(PSOCKADDR)&sockaddr,sizeof(sockaddr));
 listen(listensock,1);
 if (WSAGetLastError()!=0)
 {
  AfxMessageBox("SOCKET初始化失敗!");
  SendMessage(WM_CLOSE,0,0);
 }
 LSeventarray[LSeventnum]=WSACreateEvent();
 ZeroMemory(&LSoverlapped,sizeof(WSAOVERLAPPED));
 LSoverlapped.hEvent=LSeventarray[LSeventnum]; //負責監聽的事件
 LSeventnum++;
 AcceptEx(listensock,acceptsock,(PVOID)&LSbuffer,0,32,32,NULL,&LSoverlapped);
 if (WSAGetLastError()!=997)
 {
  AfxMessageBox("監聽端口重疊操作失敗");
  SendMessage(WM_CLOSE,0,0);
 }
 AfxBeginThread(LStreadproc,NULL);
 return TRUE;  // return TRUE  unless you set the focus to a control
}

void CServerDlg::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 CServerDlg::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 CServerDlg::OnQueryDragIcon()
{
 return (HCURSOR) m_hIcon;
}
UINT LStreadproc(LPVOID lpParam)
{
 DWORD dindex;
 SOCKADDR_IN REaddr;
 int addrlen;
 CServerDlg *app=(CServerDlg*)AfxGetApp()->GetMainWnd(); //取得主窗口^_^想訪問他的數據很久了
 dindex=WSAWaitForMultipleEvents(app->LSeventnum,app->LSeventarray,FALSE,WSA_INFINITE,FALSE);
 dindex=dindex-WSA_WAIT_EVENT_0; //這纔是真正的事件序號
 WSAResetEvent(app->LSeventarray[dindex]);
 accept(app->acceptsock,(PSOCKADDR)&REaddr,&addrlen);//還是這個函數拿來好用
 LPCTSTR lpip=inet_ntoa(REaddr.sin_addr); //得到連接的IP地址
 AfxBeginThread(AStreadproc,NULL);
 return 0;
}
UINT AStreadproc(LPVOID lParam)
{
 int i;
 int len;
 char buffer[4096]; //數據緩衝
 DWORD flags=0;
 CString filelen;
 CString filename;
 DWORD dindex;
 CString pathinfo;
 CString fileinfo;
 CServerDlg *app=(CServerDlg*)AfxGetApp()->GetMainWnd(); //多用GetLastError- -#防錯是關鍵啊
 ZeroMemory(buffer,4096); //初始化數據緩衝
 app->wsabuf.buf=buffer;
 app->wsabuf.len=4096;
 app->ASeventarray[app->ASeventnum]=WSACreateEvent();
 app->ASoverlapped.hEvent=app->ASeventarray[app->ASeventnum];
 app->ASeventnum++; //接收的事件數目
 char strdir[MAX_PATH];
 char strpath[MAX_PATH];
 BROWSEINFO bi={0};
 bi.hwndOwner=app->GetSafeHwnd();
 bi.pidlRoot=NULL;
 bi.lpszTitle="請選擇你要保存的路徑";
 bi.ulFlags=BIF_RETURNONLYFSDIRS|BIF_EDITBOX;
 bi.pszDisplayName=strdir;
 LPITEMIDLIST pidl=SHBrowseForFolder(&bi);
 if (SHGetPathFromIDList(pidl,strpath))
 {
  pathinfo.Format("%s",strpath);
 }
 while (TRUE)
 {
  WSARecv(app->acceptsock,&app->wsabuf,1,&app->recvnums,&flags,&app->ASoverlapped,NULL); //投遞一個接收消息的重疊結構
  dindex=WSAWaitForMultipleEvents(app->ASeventnum,app->ASeventarray,FALSE,WSA_INFINITE,FALSE);
  dindex-=WSA_WAIT_EVENT_0;
  WSAResetEvent(app->ASeventarray[dindex]);
  DWORD Drecvnum;
  DWORD Dresult;
  WSAGetOverlappedResult(app->acceptsock,&app->ASoverlapped,&Drecvnum,FALSE,&Dresult);
  if (Drecvnum==0)
  {
   AfxMessageBox("端口關閉");
   SendMessage(app->m_hWnd,WM_CLOSE,0,0);
  }
  CString str;
  str.Format("%s",buffer);
  i=str.Find("|",0);
  if (str.GetLength()<=0||i==-1)
  {
   AfxMessageBox("文件發送格式有誤");
   SendMessage(app->m_hWnd,WM_CLOSE,0,0);
  }
  filename=str.Left(i);
  filelen=str.Right(str.GetLength()-i-1);
  len=atoi(filelen);
  fileinfo=pathinfo+"//"+filename;
  CFile file;
   file.Open(fileinfo,CFile::modeReadWrite|CFile::modeCreate);
  WSARecv(app->acceptsock,&app->wsabuf,1,&app->recvnums,&flags,&app->ASoverlapped,NULL);
  while (TRUE)
  {
  dindex=WSAWaitForMultipleEvents(app->ASeventnum,app->ASeventarray,FALSE,WSA_INFINITE,FALSE);
  dindex=dindex-WSA_WAIT_EVENT_0; //真正的事件序列
  WSAResetEvent(app->ASeventarray[dindex]); //將事件重置一下留待下一次使用
  WSAGetOverlappedResult(app->acceptsock,&app->ASoverlapped,&Drecvnum,FALSE,&Dresult); //- -#這個函數主要是用來取回發送數據大小的
  len-=Drecvnum;
  file.Write(buffer,Drecvnum);
  if (!len)
  {
   file.Close();
   send(app->acceptsock,"next",5,0);
   break;
  }
  WSARecv(app->acceptsock,&app->wsabuf,1,&app->recvnums,&flags,&app->ASoverlapped,NULL);
  }
 }
 return 0;
}

void CServerDlg::OnClose()
{
 // TODO: Add your message handler code here and/or call default
 closesocket(listensock);
 closesocket(acceptsock);
 //WSACloseEvent(LSeventarray[0]);
 CDialog::OnClose();
}

---

// serverDlg.h : header file
//

#if !defined(AFX_SERVERDLG_H__68D1EBF0_3F75_4D7C_853B_E8DBAFF91C3A__INCLUDED_)
#define AFX_SERVERDLG_H__68D1EBF0_3F75_4D7C_853B_E8DBAFF91C3A__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CServerDlg dialog

class CServerDlg : public CDialog
{
// Construction
public:
 CServerDlg(CWnd* pParent = NULL); // standard constructor
 WSAEVENT LSeventarray[WSA_MAXIMUM_WAIT_EVENTS]; //監聽消息數組
 WSAEVENT ASeventarray[WSA_MAXIMUM_WAIT_EVENTS]; //接受消息數組
 DWORD LSeventnum;
 DWORD ASeventnum;
 WSABUF wsabuf;//重疊模式下的數據緩衝
 SOCKET acceptsock;
 SOCKET listensock;
 WSAOVERLAPPED ASoverlapped;
 DWORD recvnums; //接收到的數據大小
 WSAOVERLAPPED LSoverlapped;
 char LSbuffer[64]; //監聽端口的數據緩衝
// Dialog Data
 //{{AFX_DATA(CServerDlg)
 enum { IDD = IDD_SERVER_DIALOG };
 //}}AFX_DATA

 // ClassWizard generated virtual function overrides
 //{{AFX_VIRTUAL(CServerDlg)
 protected:
 virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
 //}}AFX_VIRTUAL

// Implementation
protected:
 HICON m_hIcon;

 

 WSAOVERLAPPED Loverlapped;

 

 // Generated message map functions
 //{{AFX_MSG(CServerDlg)
 virtual BOOL OnInitDialog();
 afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
 afx_msg void OnPaint();
 afx_msg HCURSOR OnQueryDragIcon();
 afx_msg void OnClose();
 //}}AFX_MSG
 DECLARE_MESSAGE_MAP()
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_SERVERDLG_H__68D1EBF0_3F75_4D7C_853B_E8DBAFF91C3A__INCLUDED_)