[Rock-dev] orogen_metadata's future

[Sylvain Joyeux]

For the connection tracking: there would be a much better solution,
that's not too hard to implement, in RTT with close-to-zero overhead
*and* proper tracking. Basically, it would involve allowing to give an
arbitrary name to all connections *and* provide an API to list the
names of all the channels currently connected to a port. In Rock, we
would use the port URIs as names et voila ...

Sylvain

On Tue, Sep 9, 2014 at 5:51 AM, Matthias Goldhoorn
<matthias.goldhoorn at dfki.de> wrote:
> On 08.09.2014 22:47, Sylvain Joyeux wrote:
>> orogen_metadata could have a bright future in Rock. It could be a very
>> good tool to remove e.g. the transformer broadcaster (yuk), easily
>> distribute transformer information as well as type sizes (for the MQ
>> transport).
>>
>> It's a great idea, but currently it has not gone very far. There is
>> only the very basics done (the data type -- which has an issue because
>> it is incompatible with the CORBA IDL spec).
>>
>> So ... as always with these things there's the question of whether it
>> should go into the next release. Janosch did put it in rock1408, but I
>> would rather not. Especially since we should probably rename one type
>> ...
>>
>> @Matthias: given that you are/were its biggest user, what's your point of view ?
> So limes currently uses this only roughly too. The problem was that
> because it's implemented as a property the calls to the metadata uses a
> lot of time.
> Since the metadata causes ugly config files and should be hidden in the
> task-inspector. It vote for not putting it yet to the release.
>
> A nice concept is would like to mention is the connection_tracking
> (branch on orocos.rb), but unfortunately it makes the whole system
> deployment 2x slower, and is also in a rough early state (no monitoring
> of broken connection etc.).
>
> I vote for putting in in the next release if the config-problem is
> solved, and the metadata becomes a attribute.
>
> Best,
> Matthias
>
>
>>
>> Sylvain
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