C++ OpenMutex函数代码示例

//初始化接口
bool COcrInput::Init(void)
{
	CStdString strMsg = _T("");
	CStdString strDir = GetInstallPath();

	m_hDLL = LoadLibrary(strDir + _T("\\bin\\InputOCR.dll"));
	if(m_hDLL)
	{
		m_pfuncPushOCRData = (PUSH_OCR_DATA)GetProcAddress(m_hDLL, PUSHCODEDATA);
		m_pfuncSetOcrInputFocus = (SET_OCR_INPUTFOCUS)GetProcAddress(m_hDLL, SETOCRINPUTFOCUS);
		m_pfunGetCodeDataBack = (GET_CODEDATA_BACK)GetProcAddress(m_hDLL, GETCODEDATABACK) ;
	}

	if (!m_hDLL || !m_pfuncPushOCRData || !m_pfuncSetOcrInputFocus)
	{
		strMsg.Format(_T("加载验证码输入模块失败! err:%d"), GetLastError());
		MessageBox(NULL, strMsg, _T("程序错误"), MB_OK);
		return false;
	}

	m_hMutexSyncFocus = OpenMutex(MUTEX_ALL_ACCESS, FALSE, _T("InputFocus"));
	if (NULL == m_hMutexSyncFocus)
	{
		strMsg.Format(_T("打开同步焦点对象失败! err:%d"), GetLastError());
		MessageBox(NULL, strMsg, _T("程序错误"), MB_OK);
		return false;
	}

	m_hMutexSystemInput = OpenMutex(MUTEX_ALL_ACCESS, FALSE, _T("Engine_SystemInPutMutex"));

	return true;
}

bool RenderFunc()
{
	hge->Gfx_BeginScene();
	hge->Gfx_Clear(0);

	if (menu)
	{
		HANDLE mutex1 = OpenMutex(MUTEX_ALL_ACCESS, FALSE, NAME_MUTEX1);
		if (mutex1)
			WaitForSingleObject(mutex1, INFINITE);


		RenderGUI();
		ReleaseMutex(mutex1);

		if (menu == 4)
		{
			text->printf(SCREEN_WIDTH/2, 200, HGETEXT_CENTER, "NESTERENKO DIMA");
			text->printf(SCREEN_WIDTH/2, 250, HGETEXT_CENTER, "COMPUTER ACADEMY \"STEP\"");
		}
	}
	else
	{
		world->Render();
		mouse_cursor->Render(mouse_pos.x, mouse_pos.y);

		if (text)
		{
			char str[8];
			int life;

			HANDLE mutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, NAME_MUTEX2);
			if (mutex)
			WaitForSingleObject(mutex, INFINITE);
			life = player->GetLife();
			ReleaseMutex(mutex);

			hard->Render(32, 32);
			text->printf(74, 16, HGETEXT_LEFT, "%d", life);

			if (level_end == 1)
			{
				text->printf(SCREEN_WIDTH/2, SCREEN_HEIGHT/2, HGETEXT_CENTER, "GO TO NEXT LEVEL!!!");
			}
			else if (level_end == 2)
			{
				text->printf(SCREEN_WIDTH/2, SCREEN_HEIGHT/2, HGETEXT_CENTER, "YOU WIN!!!");
			}

			if (ENTITY_DEATH == player->GetState())
			{
				text->printf(SCREEN_WIDTH/2, SCREEN_HEIGHT/2, HGETEXT_CENTER, "Please press a space.....");
			}
		}
	}

	hge->Gfx_EndScene();
	return false;
}

DWORD WINAPI CaptureThread(HANDLE hDllMainThread)
{
    bool bSuccess = false;

    //wait for dll initialization to finish before executing any initialization code
    if(hDllMainThread)
    {
        WaitForSingleObject(hDllMainThread, INFINITE);
        CloseHandle(hDllMainThread);
    }

    WNDCLASS wc;
    ZeroMemory(&wc, sizeof(wc));
    wc.hInstance = hinstMain;
    wc.lpszClassName = SENDER_WINDOWCLASS;
    wc.lpfnWndProc = (WNDPROC)SenderWindowProc;

    if(RegisterClass(&wc))
    {
        hwndSender = CreateWindow(SENDER_WINDOWCLASS, NULL, 0, 0, 0, 0, 0, NULL, 0, hinstMain, 0);
        if(hwndSender)
        {
            textureMutexes[0] = OpenMutex(MUTEX_ALL_ACCESS, FALSE, TEXTURE_MUTEX1);
            if(textureMutexes[0])
            {
                textureMutexes[1] = OpenMutex(MUTEX_ALL_ACCESS, FALSE, TEXTURE_MUTEX2);
                if(textureMutexes[1])
                {
                    while(!AttemptToHookSomething())
                        Sleep(50);

                    MSG msg;
                    while(GetMessage(&msg, NULL, 0, 0))
                    {
                        TranslateMessage(&msg);
                        DispatchMessage(&msg);

                        AttemptToHookSomething();
                    }

                    CloseHandle(textureMutexes[1]);
                    textureMutexes[1] = NULL;
                }

                CloseHandle(textureMutexes[0]);
                textureMutexes[0] = NULL;
            }

            DestroyWindow(hwndSender);
        }
    }

    return 0;
}

JNIEXPORT jint JNICALL Java_com_tkym_labs_sharedmem_win_BaseNamedObjectsJni_openMutex(JNIEnv * env, jobject, jstring name){
	LPCTSTR lpName = (LPCTSTR)env->GetStringChars(name, NULL);
	HANDLE handle = OpenMutex(MUTEX_ALL_ACCESS, FALSE, lpName);
	env->ReleaseStringChars(name, (const jchar *)lpName);
	if (handle == NULL) return (jint) (-1*GetLastError());
	else return (jint) handle;
}

bool CSingleAccess::Setup(LPCTSTR signalName)
{
	if(signalName)
	{
#ifdef _DEBUG
		m_signalName=signalName;
#endif
	}
	else
	{
#ifdef _DEBUG
		m_signalName="";
#endif
		return false;
	}
	ASSERT(m_hSignal==NULL);
	if(OpenMutex(MUTEX_ALL_ACCESS,false,signalName))
	{
		TRACE("CSingleAccess无法构造对象,因为名称[%s]已经存在!\n",signalName);
		return false;
	}
	m_hSignal=CreateMutex(NULL,FALSE,signalName);
	if(m_hSignal) ReleaseMutex(m_hSignal);
	return m_hSignal!=NULL;
}

int Mymutex::openwrite(wchar_t* name){
  mutex=OpenMutex(MUTEX_ALL_ACCESS,false, (LPCWSTR)name);
  if(mutex==NULL){
    if(GetLastError()==ERROR_FILE_NOT_FOUND){
      mutex=CreateMutex(NULL,false,(LPCWSTR)name);
	}else{
		printf("BBBBBBBB\n");
	  return -1;
	}
  }
  int wr=WaitForSingleObject(mutex,INFINITE);
  if(wr==WAIT_FAILED){
	  printf("BBBBBBBB1\n");
  return -1;
  }
  file=CreateFileW(name,GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL);
  if (file==INVALID_HANDLE_VALUE){
    return -1;
  }
   int pos=0;
  int sr=SetFilePointer(file,0,(PLONG)&pos,FILE_END);
  if(sr==INVALID_SET_FILE_POINTER){
  return -1;
  }
  return 0;
	}

long CUpdateBar::OnSelfUpdateInit(WPARAM wParam, LPARAM lParam)
{
	// Wait for terminating MUpdate.exe
	HANDLE hMutex = OpenMutex( MUTEX_ALL_ACCESS, FALSE, MUPDATE_MUTEXNAME);
	if (hMutex) {
		DWORD dwVal = WaitForSingleObjectEx(hMutex, INFINITE, TRUE);
		TRACE("MUTEX Result = %d \n", dwVal);
	}

	// Copy MUpdate_New.exe to MUpdate.exe
	if (!CopyFile("MUpdate_New.exe", "MUpdate.exe", FALSE)) {
		DWORD dwError = GetLastError();
		TRACE("CopyFile Error : %d \n", dwError);
	}

	DeleteFile("MUpdate_New.exe");

	// Shutdown
	exit(0);
//	CMainFrame* pFrame = (CMainFrame*)AfxGetMainWnd();
//	pFrame->DestroyWindow();
//	pFrame->PostMessage(WM_CLOSE);

	return TRUE;
}

BOOL CSageApp::InitInstance()
{
	LPCTSTR szSingleInstanceMutex = _T("EGAR SAGE {1772A390-F4B7-4d4c-8949-1A11955CC803}");
	m_hSingleInstanceMutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, szSingleInstanceMutex);
	if (m_hSingleInstanceMutex)
	{
		return FALSE;
	}
	m_hSingleInstanceMutex = CreateMutex(NULL, FALSE, szSingleInstanceMutex);

	// Change the registry key under which our settings are stored.
	SetRegistryKey(APP_KEY);

    CoInitialize(NULL);

	CTracer::CreateFileName();
	
	CSageDlg dlg;
    m_pMainWnd = &dlg;
    dlg.DoModal();

    CoUninitialize();

	if (m_hSingleInstanceMutex)
		CloseHandle(m_hSingleInstanceMutex);

    return FALSE;
}

void ClientManager::SubstractUser(int fd)
{
#if 0
	/* Mutex Open */
	m_hMutex = OpenMutex(MUTEX_ALL_ACCESS, TRUE, (LPCWSTR)SHARE_MUTEX);
	if (m_hMutex == NULL)
	{
		printf("Mutex Handle is NULL.. \n");
		m_hMutex = CreateMutex(NULL, FALSE, (LPCWSTR)SHARE_MUTEX);
	}
	WaitForSingleObject(m_hMutex, INFINITE);
#endif
	/* Mutex Open */
	unordered_map<int, ObjectUser*>::iterator it_user;

	it_user = map_user.find(fd);
	if (it_user != map_user.end()) {
		map_user.erase(it_user);
		delete UserInfo[fd];
		SubtractClientCnt();
	};

#if 0
	/* Mutex Close */
	ReleaseMutex(m_hMutex);
	//CloseHandle(m_hMutex);

	m_hMutex = NULL;
	/* Mutex Close */
#endif
}

int WINAPI WinMain(HINSTANCE hinst, HINSTANCE hinstPrev, LPSTR lpCmdLine, int nShowCmd) {
    lua_State *L;
    int hostCommand, initTop, endTop;

    if (OpenMutex(MUTEX_ALL_ACCESS, FALSE, g_mutex)) {
        MessageBoxA(0, "CWG4 is already loaded.", g_appName, MB_ICONERROR);
        return 1;
    }
    CreateMutex(NULL, TRUE, g_mutex);

    do {
        hostCommand = 0;
        L = luaL_newstate();
        if (!L) return 2;

        luaL_openlibs(L);
        initTop = lua_gettop(L);
        if (luaL_loadfile(L, "init.lua") || lua_pcall(L, 0, LUA_MULTRET, 0)) {
            MessageBoxA(0, lua_tostring(L, -1), g_appName, MB_ICONERROR);
            lua_close(L);
            return 3;
        }

        endTop = lua_gettop(L);
        if (endTop > initTop) hostCommand = lua_tointeger(L, -1);
        lua_close(L);
    } while (hostCommand == 42);

    return 0;
}

void World::UpdateGraphic()
{
	bg->Update();
	map->UpdateGraphic();

	HANDLE mutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, NAME_MUTEX2);
	if (mutex)
	{
		WaitForSingleObject(mutex, INFINITE);

		for (int i = 0; i < entitys.size(); i++)
		{
			entitys[i]->UpdateGraphic();
		}

		if (player)
			player->UpdateGraphic();

		ReleaseMutex(mutex);

		for (size_t i = 0; i < bullets.size(); i++)
		{
			bullets[i]->UpdateGraphic();
		}	
	}


}

//
//	すでに起動済みかどうかを Mutex で判定
//	out: TRUE .. 起動済み
//
BOOL check_already(void)
{
	SECURITY_DESCRIPTOR sd;
	SECURITY_ATTRIBUTES sa;
	TCHAR mutex_name[MAX_PATH];

	wsprintf(mutex_name, MUTEX_STRING, service_name);
	// 排他処理用 mutex を作成
	mutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, mutex_name);
	if(mutex != NULL) {
		if(!service_flag) {
			// すでに起動されています。
			MessageBoxResourceText(NULL, IDS_ERROR_ALREADY_EXECUTE, NULL, ERROR_HEADER, MB_OK);
		}
		return TRUE;
	}
	sa.lpSecurityDescriptor = NULL;
	if(InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION)) {
		if(SetSecurityDescriptorDacl(&sd, TRUE, (PACL)NULL, FALSE)) {
			sa.lpSecurityDescriptor = &sd;
		}
	}
	sa.nLength = sizeof(sa);
	sa.bInheritHandle = TRUE;
	mutex = CreateMutex(&sa, FALSE, mutex_name);
	return FALSE;
}

CONDITION
THR_ObtainMutex(int fac) {
#ifdef CTN_USE_THREADS
#ifdef _MSC_VER
  char name[32];
  HANDLE hTmpMutex;
  mutexName(fac, name);
  hTmpMutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, name);
  WaitForSingleObject(hMutex[fac], INFINITE);
  /* From JCS, close temp handle to get eliminate resource leak. */
  CloseHandle(hTmpMutex);

  return THR_NORMAL;
#else
  int cond;

  if (!initialized) {
    fprintf(stderr,
            "Threads not initialized in call to THR_ObtainMutex: exiting\n");
    exit(1);
  }
  cond = mutex_lock(&mutex[fac]);
  if (cond != 0) {
    fprintf(stderr, "Failed on call to mutex_lock in THR_ObtainMutex\n");
    return THR_GENERICFAILURE;
  }
  return THR_NORMAL;
#endif
#else
  return THR_NORMAL;
#endif
}

BOOL CTabletInfoApp::InitInstance()
{
	// InitCommonControlsEx() is required on Windows XP if an application
	// manifest specifies use of ComCtl32.dll version 6 or later to enable
	// visual styles.  Otherwise, any window creation will fail.
	INITCOMMONCONTROLSEX InitCtrls;
	InitCtrls.dwSize = sizeof(InitCtrls);
	// Set this to include all the common control classes you want to use
	// in your application.
	InitCtrls.dwICC = ICC_WIN95_CLASSES;
	InitCommonControlsEx(&InitCtrls);

	CWinApp::InitInstance();

	AfxEnableControlContainer();
	hMutex=OpenMutex(MUTEX_ALL_ACCESS,FALSE,"TabletInfo");
	if(hMutex)
	{
		//AfxMessageBox("程序已经启动，请双击对应的系统图标打开程序！",MB_ICONERROR);
		HWND hWnd=FindWindow(NULL,"TabletInfo v1.4");
		if (hWnd)
		{
			if(!IsWindowVisible(hWnd))
				ShowWindow(hWnd,SW_SHOW);
			SetForegroundWindow(hWnd);
		}
		return FALSE;
	}
	else
	{
		hMutex=CreateMutex(NULL,FALSE,"TabletInfo");
	}

	// 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
	// Change the registry key under which our settings are stored
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization
	SetRegistryKey(_T("TabletInfo"));

	CTabletInfoDlg dlg;
	m_pMainWnd = &dlg;
	INT_PTR 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;
}

	etk_win32_sem_locker_t()
	{
		const char *lockerName = "_etk_global_";
		if((iLocker = OpenMutex(MUTEX_ALL_ACCESS, FALSE, lockerName)) == NULL)
			iLocker = CreateMutex(NULL, FALSE, lockerName);
		if(iLocker == NULL) ETK_ERROR("[KERNEL]: Can't initialize global semaphore!");
	}