C++/서비스 상태 쿼리

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  1. #ifndef SAFEFREE
  2. #   define SAFEFREE(x) if(x){ ::free((void *)x); x = NULL; }
  3. #endif
  4. ...
  6. TCHAR szServiceName[] = _T("myservice");
  8. SC_HANDLE hScm = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
  10. ENUM_SERVICE_STATUS *lpService = NULL;
  11. DWORD pcbBytesNeeded = 0;
  12. DWORD lpServicesReturned = 0;
  13. DWORD lpResumeHandle = 0;
  14. DWORD dwError = 0;
  15. if(!EnumServicesStatus(hScm, SERVICE_WIN32, SERVICE_ACTIVE, NULL, 0,
  16.     &pcbBytesNeeded, &lpServicesReturned, &lpResumeHandle) ||
  17.     (dwError = GetLastError() ) == ERROR_MORE_DATA)
  18. {
  19.     DWORD dw_Bytes = pcbBytesNeeded + sizeof(ENUM_SERVICE_STATUS);
  20.     lpService = (ENUM_SERVICE_STATUS *) malloc(dw_Bytes) ;
  22.     lpResumeHandle=NULL ;
  23.     if(!EnumServicesStatus(hScm, SERVICE_WIN32, SERVICE_ACTIVE, lpService, dw_Bytes,
  24.         &pcbBytesNeeded, &lpServicesReturned, &lpResumeHandle) )
  25.     {
  26.         dwError = GetLastError();
  27.         // _T("%s GetActiveStatus() fail, GetLastError=%d"), szServiceName, dwError);
  28.         SAFEFREE(lpService) ;
  29.         CloseServiceHandle(hScm);
  30.         return 0;
  31.     }
  33.     BOOL bFound = FALSE;
  34.     for (DWORD i=0; i < lpServicesReturned; i++)
  35.     {
  36.         CString finder(lpService[i].lpServiceName);
  38.         if (finder.Compare(szServiceName) == 0)
  39.         {
  40.             // Current State
  41.             if (lpService[i].ServiceStatus.dwCurrentState == SERVICE_RUNNING)
  42.             {
  43.                 // _T("%s service is running"), szServiceName);
  44.             }
  45.             else
  46.             {
  47.                 // _T("%s service not running, CurrentState=%d"), szServiceName, lpService[i].ServiceStatus.dwCurrentState);
  48.             }
  49.             bFound = TRUE;
  50.             break;
  51.         }
  52.     }
  53.     if (bFound == FALSE)
  54.     {
  55.         // _T("%s service not created"), szServiceName);
  56.     }
  57. }
  59. SAFEFREE(lpService);
  60. CloseServiceHandle(hScm);

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