多线程进程间交换数据使用的共享内存

// ShareMemDlg.cpp : implementation file // #include "stdafx.h" #include "ShareMem.h" #include "ShareMemDlg.h" #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() ///////////////////////////////////////////////////////////////////////////// // CShareMemDlg dialog CShareMemDlg::CShareMemDlg(CWnd* pParent /*=NULL*/) : CDialog(CShareMemDlg::IDD, pParent) { //{{AFX_DATA_INIT(CShareMemDlg) m_strServer = _T("在此输入的内容将被拷贝到内存共享区"); m_strClient = _T("在此显示共享内存去的内容"); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CShareMemDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CShareMemDlg) DDX_Control(pDX, IDC_BUTTON_SETCUSTOM, m_setcustom); DDX_Control(pDX, IDC_BUTTON_DEFAULT, m_default); DDX_Control(pDX, IDC_BUTTON_CUSTOM, m_custom); DDX_Text(pDX, IDC_EDIT_SERVER, m_strServer); DDX_Text(pDX, IDC_EDIT_CLIENT, m_strClient); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CShareMemDlg, CDialog) //{{AFX_MSG_MAP(CShareMemDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BUTTON_DEFAULT, OnButtonDefault) ON_EN_CHANGE(IDC_EDIT_SERVER, OnChangeEditServer) ON_WM_CLOSE() ON_BN_CLICKED(IDC_BUTTON_SETCUSTOM, OnButtonSetcustom) ON_BN_CLICKED(IDC_BUTTON_CUSTOM, OnButtonCustom) ON_BN_CLICKED(IDC_BUTTON_RUNAG, OnButtonRunag) ON_BN_CLICKED(IDC_BUTTON1, OnButton1) ON_BN_CLICKED(IDC_BUTTON2, OnButton2) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CShareMemDlg message handlers BOOL CShareMemDlg::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 m_custom.EnableWindow(FALSE); return TRUE; // return TRUE unless you set the focus to a control } void CShareMemDlg::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 CShareMemDlg::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 CShareMemDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CShareMemDlg::OnChangeEditServer() { // TODO: If this is a RICHEDIT control, the control will not // send this notification unless you override the CDialog::OnInitDialog() // function and call CRichEditCtrl().SetEventMask() // with the ENM_CHANGE flag ORed into the mask. // TODO: Add your control notification handler code here UpdateData(); //更新共享内存块数据 char *p = (char*)m_SFMS.GetBuffer(); if (p) strcpy(p, LPCTSTR(m_strServer)); } void CShareMemDlg::OnButtonDefault() { // TODO: Add your control notification handler code here //获取共享内存块数据 CSFMClient SFMC; char *p = (char*)SFMC.GetBuffer(); if (p) m_strClient = p; UpdateData(FALSE); } void CShareMemDlg::OnCancel() { // TODO: Add extra cleanup here // CDialog::OnCancel(); } void CShareMemDlg::OnOK() { // TODO: Add extra validation here // CDialog::OnOK(); } void CShareMemDlg::OnClose() { // TODO: Add your message handler code here and/or call default CDialog::OnClose(); CDialog::OnOK(); } void CShareMemDlg::OnButtonSetcustom() { // TODO: Add your control notification handler code here m_strServer = ""; m_strClient = ""; UpdateData(FALSE); m_SFMS.Create(NULL, "_ZZZ_OBJ_", 1); m_custom.EnableWindow(TRUE); m_default.EnableWindow(FALSE); m_setcustom.EnableWindow(FALSE); } void CShareMemDlg::OnButtonCustom() { // TODO: Add your control notification handler code here CSFMClient SFMC; SFMC.Open(FILE_MAP_READ|FILE_MAP_WRITE, "_ZZZ_OBJ_"); char *p = (char*)SFMC.GetBuffer(); if (p) m_strClient = p; UpdateData(FALSE); } void CShareMemDlg::OnButtonRunag() { // TODO: Add your control notification handler code here CString strName; ::GetModuleFileName(NULL, strName.GetBuffer(256), 256); //strName.ReleaseBuffer(-1); STARTUPINFO si = {sizeof(si)}; PROCESS_INFORMATION pi = {NULL, NULL, 0, 0}; ::CreateProcess( strName, NULL, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi ); } void CShareMemDlg::OnButton1() { // TODO: Add your control notification handler code here //CSFMServer *pCSFMS = new CSFMServer("c:\\obj_zzz.mem", "_OBJ_ZZZ_", 0); CSFMServer *pCSFMS = new CSFMServer("c:\\obj_zzz.mem", "_OBJ_ZZZ_", 1); char *p = (char*)pCSFMS->GetBuffer(); if (p) { strcpy(p, "1234567890"); ::AfxMessageBox(p); } //delete pCSFMS;//不要释放 } void CShareMemDlg::OnButton2() { // TODO: Add your control notification handler code here CSFMClient *pCSFMC = new CSFMClient(FILE_MAP_READ, "_OBJ_ZZZ_"); char *p = (char*)pCSFMC->GetBuffer(); if (p) strcpy(p, "1234567890"); delete pCSFMC;//释放 }