Windows service shut down

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;
}