Re: [ros-users] Generic message transport infrastructure

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Author: User discussions
Date:  
To: User discussions
Subject: Re: [ros-users] Generic message transport infrastructure


On 12/03/10 03:25, Josh Faust wrote:
>
>     I'll invest the time when I can see that someone has an interest
>     and a use-case for this form of shared memory transport.

>
>
> I guess my question then is, if you don't have a use-case, and the
> common use will likely cause crashes, why release the code and tell
> others to use it?
>


I don't think common use will likely crash it: e.g. images and point
cloud are not always changing size. And the nodes should not crash if
the object size stays constant.

I have a theoretical use case for the sharedmem plugin which is
"exchanging very large objects between processes that cannot be
converted to nodelets, and with reduced delay or reduced network
clogging". I am not sure this corresponds to a problem people really
have, so I'm waiting for feedback on that. I would say this part of the
code is in beta, sufficiently functional to raise interest and to be
tried in controlled situations, but I agree it still need to be worked on.

Actually, all this generic message transport is a nice theoretical
concept, but I'm not sure how much of it is solving a problem people
really have. It was fun to develop though.

Let's wait and see.

--
Dr. Cedric Pradalier
http://www.asl.ethz.ch/people/cedricp