[mico-devel] uncaught MICO exception: IDL:omg.org/CORBA/COMM_FAILURE:1.0 (0, not-completed)

[chenyl]

您好：


Hello, I am developing a distributed application using CORBA.

My client application  in aix 5.2.0.0 works properly when the server application  is up . The server application  run on windows.

If the server is down, then run the client app and get the following:

"

uncaught MICO exception: IDL:omg.org/CORBA/COMM_FAILURE:1.0 (0, not-completed)
IOT/Abort trap(coredump)

"

In my prougramm the functions is :

int
lookup()
{
    // ORB initialization
    CORBA::ORB_var orb = CORBA::ORB_init(num, opt);

    // Acquire a reference to the Naming Service
    CORBA::Object_var nsobj = orb->resolve_initial_references("NameService");
    CosNaming::NamingContext_var nc = CosNaming::NamingContext::_narrow(nsobj);

    if(CORBA::is_nil(nc))
    {
        cerr << "oops, I cannot access the Naming Service!" << endl;
        return(-1);
    }

    // Construct Naming Service name
    CosNaming::Name name;
    name.length(1);
    name[0].id = CORBA::string_dup("upSendMsg");    // "upSendMsg" is the name of Naming Service
    name[0].kind = CORBA::string_dup("");

    // try to find that node in the Naming Service tree
    CORBA::Object_var obj;

#ifdef HAVE_EXCEPTIONS
    try
    {
        obj = nc->resolve(name);
    }
    catch(CosNaming::NamingContext::NotFound &exc)
    {
        cout << "NotFound exception." << endl;
        return(-1);
    }
    catch(CosNaming::NamingContext::CannotProceed &exc)
    {
        cout << "CannotProceed exception." << endl;
        return(-1);
    }
    catch (CosNaming::NamingContext::InvalidName &exc)
    {
        cout << "InvalidName exception." << endl;
        return(-1);
    }
    catch (CosNaming::NamingContext::AlreadyBound &exc)
    {
        cout << "AlreadyBound exception." << endl;
        return(-1);
    }
    catch (CosNaming::NamingContext::NotEmpty &exc)
    {
        cout << "NotEmpty exception." << endl;
        return(-1);
    }
    catch (...)
    {
        cerr << "Cannot find EventChannel !" << endl;
        cout << "Cannot find EventChannel !" << endl;
        return(-1);
    }
#else
    obj = nc->resolve(name);
    wcout<<"here is "<<endl;
#endif

    wcout<<"here is "<<endl;

    // The Naming Service returns a generic reference as a CORBA::Object
    // We need to narrow this to the desired type
    up = UpSendMsgInterface::_narrow(obj);
    return( 0 );
}
================================================================================
My question is why the client can not catch exception when the server is not up .

Cause I must do other things  when the server is not up.


Thank you in advance and friendly greetings.

I so hope you can help me as soon as you can.  :)



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