[certi-dev] Re: CERTI-Devel Digest, Vol 28, Issue 5

[Christian Stenzel]

Hi Petr,

> More modifications might be necessary: the behaviour might depend
> whether the values are transported as "reliable" or not. The unreliable
> transport (UDP) will never transport more than slightly less than 65535,
> so large values should be transported via TCP regardless reliable or
> not. I'm not sure if this behaviour is implemented.
Thanks for the hint, but I use TCP sockets (reliable instead of best 
effort).

@Erk
> Do you send this as a SINGLE value?
> or do you send UAV with a 9 000 000 attribute
> whose value is a single double value?
We send this as a single value. The computation of the matrix
takes a lot of time, so we would like to compute it in a seperate 
federate and
send the result to subscribing federates.

There are obviously more bytes than 270000 =>
300x300=90000[doubles]*8 = 720000[bytes].

Sry about my mistake.

I tried to set the values to an appropriate size but this ended also in
a segmentation violation.

A segmentation violation within rtig occurs directly after the startup
of a federate.

The federate log says:

>>HLALOG - 1208791271.143065 - Federate - 
/home/stenzel/certi/libRTI/RTIambassador.cc> exit 
RTIambassador::RTIambassador
>>Create Federation execution TwoLevelController.
>>Speicherzugriffsfehler -> segmentation violation
>>address@hidden:~$ HLALOG - 1208791271.145187 -  - 
/home/stenzel/certi/RTIA/FederationManagement.cc> enter 
FederationManagement::FederationManagement
>>HLALOG - 1208791271.145241 -  - 
/home/stenzel/certi/RTIA/FederationManagement.cc> exit 
FederationManagement::FederationManagement
>>RTIA:: RTIA has thrown NetworkError exception.
>>RTIA:: Reason: Connection closed by client.
>>
>>RTIA: Statistics (processed messages)
>>List of federate initiated services
>>--------------------------------------------------
>>
>>List of RTI initiated services
>>--------------------------------------------------
>>
>> Number of Federate messages : 0
>> Number of RTIG messages : 0
>>HLALOG - 1208791271.146293 -  - 
/home/stenzel/certi/RTIA/FederationManagement.cc> enter 
~FederationManagement
RTIA: Federation destroyed
>>HLALOG - 1208791271.146322 -  - 
/home/stenzel/certi/RTIA/FederationManagement.cc> exit  
~FederationManagement
>>HLALOG - 1208791271.146353 -  - 
/home/stenzel/certi/RTIA/Communications.cc> enter 
Communications::~Communications

The NetworkError exception: Connection closed by client
is thrown when invoking the method SocketUN::receive in SocketUN.cc.
nReceived seems to be zero.

> Moreover I firmly convinced that we should get rid of most
> of the other constant.
>
> Patches are welcomed :=)
> [may be more welcomed after the heterogeneous merge-i
I will see what I can do here.

Thanks for your help
Chr