[ros-users] topic queue

[Ken Conley]

I don't have much to contribute to the roscpp issue, but I will note
that it is preferable to subscribe to rosout_agg rather than rosout.
The former provides the aggregated messages from a single publisher
(the rosout node).

 - Ken

On Mon, May 2, 2011 at 1:10 AM, Christian Verbeek
<verbeek at servicerobotics.eu> wrote:
> Dear all,
>
> I am missing message when subscribing to /rosout
>
> _log_sub = _node.subscribe( "/rosout", 100, &ROSHandler::logCallback,
> this );
>
> I do call ros::spinOnce() approximately every 20ms. When I call spinOnce
> as fast as possible (in a loop) then no messages are lost. But then my
> app needs 60% of the CPU so that is not really desirable.
>
> A
> rostopic echo /rosout
> catches all messages.
>
> Any ideas?
> Regards Christian
>
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