Question

I use VS6 and ATL with CServiceModule to implement a custom windows service. In case of a fatal error service should shut itself down. Since CServiceModule is available via _Module variable in all files I thought of something like this to cause CServiceModule::Run to stop pumping messages and shut itself down

PostThreadMessage(_Module.dwThreadID, WM_QUIT, 0, 0); 

Is this correct or you have better idea ?

Answer 1

For self shutdown you send command to Service Manager. Try this sample :

 BOOL StopServiceCmd ( const char * szServiceName ) {      SC_HANDLE schService;      SC_HANDLE schSCManager;      SERVICE_STATUS ssStatus;       // current status of the service      BOOL bRet;     int iCont=0;      schSCManager = OpenSCManager(          NULL, // machine (NULL == local)          NULL, // database (NULL == default)          SC_MANAGER_ALL_ACCESS // access required          );      if ( schSCManager )      {          schService = OpenService(schSCManager, szServiceName, SERVICE_ALL_ACCESS);           if (schService)          {              // try to stop the service              if ( ControlService( schService, SERVICE_CONTROL_STOP, &ssStatus ) )              {                  Sleep( 1000 );                   while( QueryServiceStatus( schService, &ssStatus ) )                  {                      iCont++;                     if ( ssStatus.dwCurrentState == SERVICE_STOP_PENDING )                      {                          Sleep( 1000 );                          if ( iCont > 4 ) break;                     }                      else                          break;                  }                   if ( ssStatus.dwCurrentState == SERVICE_STOPPED )                      bRet = TRUE;                  else                      bRet = FALSE;              }               CloseServiceHandle(schService);          }          else              bRet = FALSE;           CloseServiceHandle(schSCManager);      }      else          bRet = FALSE;      return bRet; }