607 lines
15 KiB
C++
607 lines
15 KiB
C++
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//
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// Copyright (C) 1993-1997 Microsoft Corporation. All Rights Reserved.
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//
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// MODULE: nmmgr.cpp
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//
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// PURPOSE: Implements the body of the service.
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//
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// FUNCTIONS:
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// MNMServiceStart(DWORD dwArgc, LPTSTR *lpszArgv);
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// MNMServiceStop( );
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//
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// COMMENTS: The functions implemented in nmmgr.c are
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// prototyped in nmmgr.h
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//
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//
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// AUTHOR: Claus Giloi
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//
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#include <precomp.h>
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#include <tsecctrl.h>
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#define NMSRVC_TEXT "NMSrvc"
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// DEBUG only -- Define debug zone
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#ifdef DEBUG
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HDBGZONE ghZone = NULL;
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static PTCHAR rgZones[] = {
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NMSRVC_TEXT,
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"Warning",
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"Trace",
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"Function"
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};
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#endif // DEBUG
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extern INmSysInfo2 * g_pNmSysInfo; // Interface to SysInfo
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extern BOOL InitT120Credentials(VOID);
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// this event is signaled when the
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// service should end
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const int STOP_EVENT = 0;
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HANDLE hServerStopEvent = NULL;
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// this event is signaled when the
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// service should be paused or continued
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const int PAUSE_EVENT = 1;
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HANDLE hServerPauseEvent = NULL;
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const int CONTINUE_EVENT = 2;
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HANDLE hServerContinueEvent = NULL;
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const int numEventHandles = 3;
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HANDLE hServerActiveEvent = NULL;
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DWORD g_dwActiveState = STATE_INACTIVE;
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//
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// FUNCTION: CreateWatcherProcess
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//
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// PURPOSE: This launches a rundll32.exe which loads msconf.dll which will then wait for
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// us to terminate and make sure that the mnmdd display driver was properly deactivated.
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//
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// PARAMETERS:
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//
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// RETURN VALUE:
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//
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// COMMENTS:
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//
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BOOL CreateWatcherProcess()
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{
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BOOL bRet = FALSE;
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HANDLE hProcess;
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// open a handle to ourselves that the watcher process can inherit
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hProcess = OpenProcess(SYNCHRONIZE,
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TRUE,
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GetCurrentProcessId());
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if (hProcess)
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{
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TCHAR szWindir[MAX_PATH];
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if (GetSystemDirectory(szWindir, sizeof(szWindir)/sizeof(szWindir[0])))
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{
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TCHAR szCmdLine[MAX_PATH * 2];
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PROCESS_INFORMATION pi = {0};
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STARTUPINFO si = {0};
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si.cb = sizeof(si);
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wsprintf(szCmdLine, "\"%s\\rundll32.exe\" msconf.dll,CleanupNetMeetingDispDriver %ld", szWindir, hProcess);
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if (CreateProcess(NULL,
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szCmdLine,
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NULL,
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NULL,
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TRUE, // we want the watcher to inherit hProcess, so we must set bInheritHandles = TRUE
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0,
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NULL,
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NULL,
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&si,
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&pi))
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{
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bRet = TRUE;
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CloseHandle(pi.hThread);
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CloseHandle(pi.hProcess);
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}
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}
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CloseHandle(hProcess);
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}
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return bRet;
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}
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//
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// FUNCTION: MNMServiceStart
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//
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// PURPOSE: Actual code of the service
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// that does the work.
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//
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// PARAMETERS:
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// dwArgc - number of command line arguments
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// lpszArgv - array of command line arguments
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//
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// RETURN VALUE:
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// none
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//
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// COMMENTS:
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//
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VOID MNMServiceStart (DWORD dwArgc, LPTSTR *lpszArgv)
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{
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HRESULT hRet;
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BOOL fWaitForEvent = TRUE;
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DWORD dwResult;
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MSG msg;
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LPCTSTR lpServiceStopEvent = TEXT("ServiceStopEvent");
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LPCTSTR lpServiceBusyEvent = TEXT("ServiceBusyEvent");
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const int MaxWaitTime = 5;
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HANDLE hConfEvent;
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DWORD dwError = NO_ERROR;
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HANDLE hShuttingDown;
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int i;
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RegEntry Re( REMOTECONTROL_KEY, HKEY_LOCAL_MACHINE );
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// Initialization
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DBGINIT(&ghZone, rgZones);
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InitDebugModule(NMSRVC_TEXT);
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DebugEntry(MNMServiceStart);
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if (!Re.GetNumber(REMOTE_REG_RUNSERVICE, DEFAULT_REMOTE_RUNSERVICE))
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{
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TRACE_OUT(("Try to start mnmsrvc without no registry setting"));
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goto cleanup;
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}
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///////////////////////////////////////////////////
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//
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// Service initialization
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//
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// report the status to the service control manager.
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//
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if (!ReportStatusToSCMgr( SERVICE_START_PENDING, NO_ERROR, 30000))
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{
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ERROR_OUT(("ReportStatusToSCMgr failed"));
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dwError = GetLastError();
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goto cleanup;
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}
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HANDLE pEventHandles[numEventHandles];
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// create the event object. The control handler function signals
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// this event when it receives the "stop" control code.
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//
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hServerStopEvent = CreateEvent(
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NULL, // no security attributes
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TRUE, // manual reset event
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FALSE, // not-signalled
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SERVICE_STOP_EVENT); // no name
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if ( hServerStopEvent == NULL)
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{
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ERROR_OUT(("CreateEvent failed"));
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dwError = GetLastError();
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goto cleanup;
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}
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pEventHandles[STOP_EVENT] = hServerStopEvent;
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hServerPauseEvent = CreateEvent(
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NULL,
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FALSE,
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FALSE,
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SERVICE_PAUSE_EVENT);
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if (hServerPauseEvent == NULL)
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{
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ERROR_OUT(("CreateEvent failed"));
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dwError = GetLastError();
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goto cleanup;
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}
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pEventHandles[PAUSE_EVENT] = hServerPauseEvent;
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hServerContinueEvent = CreateEvent(
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NULL,
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FALSE,
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FALSE,
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SERVICE_CONTINUE_EVENT);
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if (hServerContinueEvent == NULL)
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{
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ERROR_OUT(("CreateEvent failed"));
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dwError = GetLastError();
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goto cleanup;
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}
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pEventHandles[CONTINUE_EVENT] = hServerContinueEvent;
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CoInitialize(NULL);
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//
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// End of initialization
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//
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////////////////////////////////////////////////////////
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// report the status to the service control manager.
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//
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if (!ReportStatusToSCMgr(
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SERVICE_RUNNING, // service state
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NO_ERROR, // exit code
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0)) // wait hint
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{
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ERROR_OUT(("ReportStatusToSCMgr failed"));
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goto cleanup;
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}
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SetConsoleCtrlHandler(ServiceCtrlHandler, TRUE);
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CreateWatcherProcess();
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AddTaskbarIcon();
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////////////////////////////////////////////////////////
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//
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// Service is now running, perform work until shutdown
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//
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if (IS_NT)
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{
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AddToMessageLog(EVENTLOG_INFORMATION_TYPE,
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0,
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MSG_INF_START,
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NULL);
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}
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//
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// Check if the service should start up activated
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//
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if ( Re.GetNumber(REMOTE_REG_ACTIVATESERVICE,
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DEFAULT_REMOTE_ACTIVATESERVICE))
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{
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MNMServiceActivate();
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}
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else
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{
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if (!ReportStatusToSCMgr(
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SERVICE_PAUSED, // service state
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NO_ERROR, // exit code
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0)) // wait hint
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{
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ERROR_OUT(("ReportStatusToSCMgr failed"));
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goto cleanup;
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}
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}
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while (fWaitForEvent)
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{
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dwResult = MsgWaitForMultipleObjects( numEventHandles,
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pEventHandles,
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FALSE,
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INFINITE,
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QS_ALLINPUT);
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switch (dwResult)
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{
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case WAIT_OBJECT_0 + numEventHandles:
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{
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while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
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{
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if (WM_QUIT != msg.message)
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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else
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{
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TRACE_OUT(("received WM_QUIT"));
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fWaitForEvent = FALSE;
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break;
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}
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}
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break;
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}
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case WAIT_OBJECT_0 + PAUSE_EVENT:
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{
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if (STATE_ACTIVE == g_dwActiveState)
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{
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MNMServiceDeActivate();
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}
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ReportStatusToSCMgr( SERVICE_PAUSED, NO_ERROR, 0);
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break;
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}
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case WAIT_OBJECT_0 + CONTINUE_EVENT:
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{
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HANDLE hInit = OpenEvent(EVENT_ALL_ACCESS, FALSE, _TEXT("CONF:Init"));
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if (STATE_INACTIVE == g_dwActiveState && NULL == hInit)
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{
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MNMServiceActivate();
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}
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CloseHandle(hInit);
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ReportStatusToSCMgr( SERVICE_RUNNING, NO_ERROR, 0);
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break;
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}
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case WAIT_OBJECT_0 + STOP_EVENT:
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{
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RemoveTaskbarIcon();
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if (STATE_ACTIVE == g_dwActiveState)
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{
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MNMServiceDeActivate();
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}
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fWaitForEvent = FALSE;
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break;
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}
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}
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}
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cleanup:
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if ( STATE_ACTIVE == g_dwActiveState )
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{
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MNMServiceDeActivate();
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}
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if (hServerStopEvent)
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CloseHandle(hServerStopEvent);
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if (hServerPauseEvent)
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CloseHandle(hServerPauseEvent);
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if (hServerContinueEvent)
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CloseHandle(hServerContinueEvent);
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TRACE_OUT(("Reporting SERVICE_STOPPED"));
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ReportStatusToSCMgr( SERVICE_STOPPED, dwError, 0);
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DebugExitVOID(MNMServiceStart);
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CoUninitialize();
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DBGDEINIT(&ghZone);
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ExitDebugModule();
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}
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BOOL MNMServiceActivate ( VOID )
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{
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DebugEntry(MNMServiceActivate);
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if ( STATE_INACTIVE != g_dwActiveState )
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{
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WARNING_OUT(("MNMServiceActivate: g_dwActiveState:%d",
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g_dwActiveState));
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return FALSE;
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}
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g_dwActiveState = STATE_BUSY;
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if (!IS_NT)
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{
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ASSERT(NULL == hServerActiveEvent);
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hServerActiveEvent = CreateEvent(NULL, FALSE, FALSE, SERVICE_ACTIVE_EVENT);
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}
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HRESULT hRet = InitConfMgr();
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if (FAILED(hRet))
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{
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ERROR_OUT(("ERROR %x initializing nmmanger", hRet));
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FreeConfMgr();
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g_dwActiveState = STATE_INACTIVE;
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if (!IS_NT)
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{
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CloseHandle ( hServerActiveEvent );
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}
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DebugExitBOOL(MNMServiceActivate,FALSE);
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return FALSE;
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}
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if ( g_pNmSysInfo )
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{
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//
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// Attempt to initialize T.120 security, if this fails
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// bail out since we won't be able to receive any calls
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//
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if ( !InitT120Credentials() )
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{
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FreeConfMgr();
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g_dwActiveState = STATE_INACTIVE;
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if (!IS_NT)
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{
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CloseHandle ( hServerActiveEvent );
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}
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DebugExitBOOL(MNMServiceActivate,FALSE);
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return FALSE;
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}
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}
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g_dwActiveState = STATE_ACTIVE;
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DebugExitBOOL(MNMServiceActivate,TRUE);
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return TRUE;
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}
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BOOL MNMServiceDeActivate ( VOID )
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{
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|
|
DebugEntry(MNMServiceDeActivate);
|
||
|
|
|
||
|
|
if (STATE_ACTIVE != g_dwActiveState)
|
||
|
|
{
|
||
|
|
WARNING_OUT(("MNMServiceDeActivate: g_dwActiveState:%d",
|
||
|
|
g_dwActiveState));
|
||
|
|
DebugExitBOOL(MNMServiceDeActivate,FALSE);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
g_dwActiveState = STATE_BUSY;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Leave Conference
|
||
|
|
//
|
||
|
|
|
||
|
|
if (NULL != g_pConference)
|
||
|
|
{
|
||
|
|
if (g_pNmSysInfo)
|
||
|
|
{
|
||
|
|
g_pNmSysInfo->ProcessSecurityData(UNLOADFTAPPLET,0,0,NULL);
|
||
|
|
}
|
||
|
|
if ( FAILED(g_pConference->Leave()))
|
||
|
|
{
|
||
|
|
ERROR_OUT(("Conference Leave failed"));;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Free the conference
|
||
|
|
//
|
||
|
|
|
||
|
|
FreeConference();
|
||
|
|
|
||
|
|
//
|
||
|
|
// Free the AS interface
|
||
|
|
//
|
||
|
|
|
||
|
|
ASSERT(g_pAS);
|
||
|
|
UINT ret = g_pAS->Release();
|
||
|
|
g_pAS = NULL;
|
||
|
|
TRACE_OUT(("AS interface freed, ref %d after Release", ret));
|
||
|
|
|
||
|
|
// can we have a way not to create this event?
|
||
|
|
HANDLE hevt = ::CreateEvent(NULL, FALSE, FALSE, NULL);
|
||
|
|
ASSERT(NULL != hevt);
|
||
|
|
const DWORD dwTimeout = 1000;
|
||
|
|
DWORD dwStartTime = ::GetTickCount();
|
||
|
|
DWORD dwCurrTimeout = dwTimeout;
|
||
|
|
DWORD dwRet;
|
||
|
|
BOOL fContinue = TRUE;
|
||
|
|
|
||
|
|
while (fContinue && WAIT_OBJECT_0 != (dwRet = ::MsgWaitForMultipleObjects(1, &hevt, FALSE, dwCurrTimeout, QS_ALLINPUT)))
|
||
|
|
{
|
||
|
|
if (WAIT_TIMEOUT != dwRet)
|
||
|
|
{
|
||
|
|
DWORD dwCurrTime = ::GetTickCount();
|
||
|
|
if (dwCurrTime < dwStartTime + dwTimeout)
|
||
|
|
{
|
||
|
|
dwCurrTimeout = dwStartTime + dwTimeout - dwCurrTime;
|
||
|
|
|
||
|
|
MSG msg;
|
||
|
|
while (::PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
|
||
|
|
{
|
||
|
|
if (WM_QUIT != msg.message)
|
||
|
|
{
|
||
|
|
::TranslateMessage(&msg);
|
||
|
|
::DispatchMessage(&msg);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
::PostQuitMessage(0);
|
||
|
|
fContinue = FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
// timeout here
|
||
|
|
}
|
||
|
|
// exit the loop
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
::CloseHandle(hevt);
|
||
|
|
|
||
|
|
// not to call FreeConfMfr imediately after FreeConference to avoid
|
||
|
|
// a bug in t120 will remove this sleep call after fix the bug in t120
|
||
|
|
FreeConfMgr();
|
||
|
|
|
||
|
|
// BUGBUG remove h323cc.dll should be done in nmcom. Once the bug in nmcom is fixed, this part will be removed.
|
||
|
|
HMODULE hmodH323CC = GetModuleHandle("h323cc.dll");
|
||
|
|
if (hmodH323CC)
|
||
|
|
{
|
||
|
|
if (FreeLibrary(hmodH323CC))
|
||
|
|
{
|
||
|
|
TRACE_OUT(("CmdInActivate -- Unloaded h323cc.dll"));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
WARNING_OUT(("CmdInActivate -- Failed to unload h323cc.dll %d", GetLastError()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!IS_NT)
|
||
|
|
{
|
||
|
|
ASSERT(hServerActiveEvent);
|
||
|
|
if (hServerActiveEvent)
|
||
|
|
{
|
||
|
|
CloseHandle(hServerActiveEvent);
|
||
|
|
hServerActiveEvent = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
g_dwActiveState = STATE_INACTIVE;
|
||
|
|
DebugExitBOOL(MNMServiceDeActivate,TRUE);
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// FUNCTION: MNMServiceStop
|
||
|
|
//
|
||
|
|
// PURPOSE: Stops the service
|
||
|
|
//
|
||
|
|
// PARAMETERS:
|
||
|
|
// none
|
||
|
|
//
|
||
|
|
// RETURN VALUE:
|
||
|
|
// none
|
||
|
|
//
|
||
|
|
// COMMENTS:
|
||
|
|
// If a ServiceStop procedure is going to
|
||
|
|
// take longer than 3 seconds to execute,
|
||
|
|
// it should spawn a thread to execute the
|
||
|
|
// stop code, and return. Otherwise, the
|
||
|
|
// ServiceControlManager will believe that
|
||
|
|
// the service has stopped responding.
|
||
|
|
//
|
||
|
|
VOID MNMServiceStop()
|
||
|
|
{
|
||
|
|
DebugEntry(MNMServiceStop);
|
||
|
|
|
||
|
|
RemoveTaskbarIcon();
|
||
|
|
|
||
|
|
if ( hServerStopEvent )
|
||
|
|
{
|
||
|
|
TRACE_OUT(("MNMServiceStop: setting server stop event"));
|
||
|
|
SetEvent(hServerStopEvent);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (IS_NT)
|
||
|
|
{
|
||
|
|
AddToMessageLog(EVENTLOG_INFORMATION_TYPE,
|
||
|
|
0,
|
||
|
|
MSG_INF_STOP,
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
DebugExitVOID(MNMServiceStop);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
VOID MNMServicePause()
|
||
|
|
{
|
||
|
|
DebugEntry(MNMServicePause);
|
||
|
|
|
||
|
|
if ( hServerPauseEvent )
|
||
|
|
SetEvent(hServerPauseEvent);
|
||
|
|
|
||
|
|
DebugExitVOID(MNMServicePause);
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID MNMServiceContinue()
|
||
|
|
{
|
||
|
|
DebugEntry(MNMServiceContinue);
|
||
|
|
|
||
|
|
if ( hServerContinueEvent )
|
||
|
|
SetEvent(hServerContinueEvent);
|
||
|
|
|
||
|
|
DebugExitVOID(MNMServiceContinue);
|
||
|
|
}
|
||
|
|
|
||
|
|
|