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ros2 / rmw_iceoryx

rmw implementation for iceoryx
Apache License 2.0
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`ros2 topic echo` not working #57

Closed mossmaurice closed 2 years ago

mossmaurice commented 3 years ago

Required information

Operating system: Ubuntu 20.04.02 LTS

Compiler version: GCC 9.3.0

Branch: galactic

Observed result or behaviour: ros2 topic echo not working, no output just seems to be blocked

Expected result or behaviour: Increasing counter is shown in cmd line

Conditions where it occurred / Performed steps: RMW_IMPLEMENTATION=rmw_iceoryx_cpp ros2 topic echo /chatter does not print any output when running the talker/listener demo

nistran commented 3 years ago

Same Issue here. ROS2 Galactic with Ubuntu 20.04. ros2 topic list works as expected ros2 topic echo and ros2 topic hz does not work. Any news here? Thanks.

mossmaurice commented 2 years ago

Thanks for the ping @nistran! Not solved yet. This is also the reason why there is no release yet for galactic. I'll have a closer look on what's the issue.

IIRC @ZhenshengLee was looking into this a while ago. Maybe he gained some insight?

ZhenshengLee commented 2 years ago

were you able to check whether this works? https://answers.ros.org/question/384441/how-to-debug-rmw-segfaults-launched-by-ros2cli-like-ros2-topic-echo/?answer=384845#post-id-384845

_Originally posted by @christophebedard in https://github.com/ros2/rmw_iceoryx/issues/49#issuecomment-907422149_

I think this would help to debug python based ros2 application.

mossmaurice commented 2 years ago

@nistran @ZhenshengLee I opened PR #70 which fixes Python support and ros2 topic echo for me. Could you please have a look?

The Python debugging hint from @christophebedard worked like a charm :rocket:

mossmaurice commented 2 years ago

Fixed with #70