[PolyORB-users] Error passing float sequence to server

[Jerome Hugues]

Hi Will,

Will Normand (wnormand at gmail.com):

Can you please detail your setup ? if you are using the CVS version,
you'll find the a form in doc/PROBLEM-REPORT-FORM

The relevant information are host, compiler version, version and
origin of PolyORB.

> I am receiving the following error:
> raised CONSTRAINT_ERROR :
> polyorb-sequences-unbounded-corba_helper.adb:117 range check failed
> 
> This occurs when my client tries to call a procedure on the server.
> The procedure passes a sequence of floats to the server.

Humm, from the remaining of your post, it seems that the exception is
triggered on the client side, right ?

> >From the client code:
> 
> declare
>         Seq : Corbabenchmarks.FloatSeq;
> begin
>         Seq := Corbabenchmarks.To_Sequence(Payload);
>         Corbabenchmarks.Replace_Element(Seq, Payload, 1.0);
>         Corbabenchmarks.Server.FloatIn(Myserver, Seq);
> end;
> 
> The IDL file includes:
> 
> module corbaBenchmarks {
>         typedef sequence<float> FloatSeq;
>         typedef sequence<long> IntSeq;
>         interface Server {
>                 void floatIn(in FloatSeq data);
>                 void intIn(in IntSeq data);
>         }
> }
> 
> The strange thing is that this error only occurs with certain payloads
> (length of float sequence).  The majority of sequence lengths work.

Can you please detail the values that cause this problem ?
Is there a threshold that triggers it ?

> This varies depending on which Name Server is used!  I have tried
> po_cos_naming and the Orbacus Name Server.
> 
> Also, even if the Server is no longer running --- though still
> registered on the Name Server, so a reference can be returned --- this
> error still occurs, so CORBA.COMM_FAILURE is not raised.  So the error
> seems to occur in the call Corbabenchmarks.Server.FloatIn(Myserver,
> Seq), but before the procedure is actually called on the server.

and before the request is actually issued by the client, AFAICT

> Is this a bug with PolyORB?  Does anyone have a solution?

We can tell more when you complete some elements, thanks

Best regards,

Jerome