05-07-2018 04:13 PM
I am trying to write a LabVIEW program that reads DDS messages from an already running / established program. The program sends out messages on a partition, and I can't get LabVIEW to read (or write) on any partition other than the default no partition. I have a QoS xml file that appears to be working otherwise with the partition tag in it.
In troubleshooting, I have used the shapes demo (the canned RTI writer with the LabVIEW reader) and published 2 shapes (a red and blue square). The blue square is on partition B and the red square is not on a partition. No matter what I do with the QoS, LabVIEW always sees the red square and never sees the blue square. I examined the wireshark read request messages sent by both LabVIEW and another instance of the RTI shapes demo and noticed that the RTI one contains a "PID_PARTITION" field (with the "B" as a data element within it), however, the LabVIEW read request message does not contain the "PID_PARTITION" field.
What am I doing wrong, and how do I get LabVIEW to read partitions?
LabVIEW 2017, RTI DDS Toolkit 2.1.1.106, RTI 5,3.1 (for shapes demo and from what I'm told, the other program I need to interface with)
05-14-2018 05:56 AM
Hi Jeff,
As partitions are part of the publisher and subscriber QoS, they are affected by a bug which affects RTI DDS Toolkit 2.0.0 and 2.1.1 which avoid loading publisher and subscriber QoS. This will be fixed for the following release.
Thanks,
Angel.