[certi-dev] TAG and transient message

[David Come]

Hi,

I encountered an odd behavior when using CERTI (lasted git version)  within my Java Framework (the HLA/Ptolemy plugin, see http://ptolemy.eecs.berkeley.edu/ for more info on Ptolemy).
.I'm also using the latest version of JCERTI available on the git repo .

My simulation is a ping-pong between 2 federates, each of them has a lookahead of 0.1 and both start at 0.

There are 2 objects in the federation, drone and calcul.
A publishes and updates drone and has subscribted to calcul, and vice-versa for B.

Here a quick ascii-art sequence diagram :

A --0.1-->Drone--> B
|  <--Calcul--0.2---   |
|  --0.3-->Drone--> |
  

Both use the NER time advance mechanism and ask NER(100) at each time.

The sequence stops after the first ping-pong exchange because the RTI grants to B access to time 100.

This bothers me because there is a transient UAV message timestamped at 0.30000000000000004 from A to B but B never receives it before the TAG.

Please find attached the full logs from A and B.

I don't know  if :
- There is a bug in CERTI
- There is a bug in JCERTI
- There is a bug in my code

Any help is welcomed.

Thanks.
David.

B
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A
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