BufferedPortVector callback tests

[yeshasvitirupachuri]

I was trying to work with the yarp python bindings, and came across this nice curation of examples, Kudos 👍🏾

I played a bit with the code in the callbacks, and my main interest is to read the incoming port data through BufferedPortVector using its associated callback TypedReaderCallbackVector as indicated in the commented out part of the code.

The initial code I used to test BufferedPortBottle with only Int32 data, and with the associated callback BottleCallback. This test ran as expected, and I am able read the data from the writer inside the callback of the reader port

Note that I added a line to connect the /writer and the /reader port inside reader_bp_callback.py rather than manually connecting.

However, when I modified the reader_bp_callback.py to open a BufferedPortVector and the associated callback TypedReaderCallbackVector, I could not read the data.

NOTE: In this test, I commented out the print of the callback and used a simple debug print print("onRead ...") which was never reached.

@ddetommaso @Nicolasr3 Please take a look at this issue, and let me know if I am handling BufferedPortVector callback correctly. Thanks.

CC @diegoferigo @traversaro

[Nicolasr3]

Hi Yeshasvi, thanks for your appreciation!

I was looking the issue, and actually we didn't test the BufferedVectorPort.
I made some test too and I came out with another issue.

NOTE: I modified also the writer_bp.py to open a BufferedPortVector instead a BufferedPortBottle, so that /writer and /reader are using the same object.
The reader_bp_callback.py is the same after your modification, since I was expecting the same for usign the BufferedPortVector.

Unfortunately it looks that something is still missing somewhere (it seems that I don't override the onRead method).

I tested also in c++ this example and it works, in the case could be helpful.

I'll let you know as soon as I have some news.

Sorry for the late answer, we were out of office.

Best