[Ros-release] roscpp subscriber callback not triggered when sending from Android

[Damon Kohler]

Ah, sorry, I misunderstood.

Perhaps the handshake is failing? Could you provide a wireshark dump
of the Android app publishing to a roscpp subscriber? Be sure to
include the negotiation phase.

On Thu, Dec 13, 2012 at 2:32 PM, Marcus Liebhardt
<marcus.liebhardt at rnd.yujinrobot.com> wrote:
> On Thu, Dec 13, 2012 at 7:09 PM, Damon Kohler <damonkohler at google.com>
> wrote:
>>
>> This may be a good question for http://answers.ros.org
>
>
> Hmm, might be true. I was not sure, if it fits. Since it was working for
> Fuerte, it might be a hidden Groovy bug.
> I'll repost it there, if you like.
>
>>
>>
>>
>> The first thing I would check is whether or not the message is
>> actually making it over the network (e.g. wireshark). You could also
>> try a simple rosjava subscriber. I can say, that this use case is used
>> actively so it's likely a configuration problem.
>
>
> The message does come through, since the rospy subscribers I have tested in
> parallel are receiving the message. Only the roscpp callbacks are not
> triggered.
>
> Marcus
>
>>
>> On Thu, Dec 13, 2012 at 10:15 AM, Marcus Liebhardt
>> <marcus.liebhardt at rnd.yujinrobot.com> wrote:
>> > Another problem I ran into today:
>> > When sending messages from an Android app (e.g. Turtlebot teleop sending
>> > geometry_msgs/Twist), the callback of my roscpp subscriber didn't get
>> > triggered.
>> > I tested this with simple subscriber implementations in roscpp and rospy
>> > in
>> > parallel (plus rostopic echo, which is also implemented with rospy
>> > AFAIK).
>> > This only happened when sending from Android, so might be a bug there
>> > (or
>> > just because we currently can't recompile those apps). When sending from
>> > another 2.Beta Groovy 64Bit Ubuntu machine, callbacks in both
>> > implementations worked fine.
>> >
>> > If anybody knows further tests, with which I could narrow down the root
>> > cause, please let me know!
>> >
>> > Thanks,
>> > Marcus
>> >
>> > --
>> > Marcus Liebhardt
>> > Control Engineer
>> > Yujin Robot
>> > 주소: 대한민국 서울시 금천구 가산동 345-30 남성프라자 #601, 153-023.
>> > Address: Door #601, Namsung-Plaza, 345-30 Gasan-dong, Guemcheon-gu,
>> > Seoul,
>> > 153-023, Republic of Korea
>> > Website: http://www.yujinrobot.com
>> > Email: marcus.liebhardt at yujinrobot.com
>> > Phone: +82-70-46577073
>> >
>> > _______________________________________________
>> > Ros-release mailing list
>> > Ros-release at code.ros.org
>> > https://code.ros.org/mailman/listinfo/ros-release
>> >
>>
>>
>>
>> --
>> :wq
>>
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>> Dienerstr. 12
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>>
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>>
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>
>
>
>
> --
> Marcus Liebhardt
> Control Engineer
> Yujin Robot
> 주소: 대한민국 서울시 금천구 가산동 345-30 남성프라자 #601, 153-023.
> Address: Door #601, Namsung-Plaza, 345-30 Gasan-dong, Guemcheon-gu, Seoul,
> 153-023, Republic of Korea
> Website: http://www.yujinrobot.com
> Email: marcus.liebhardt at yujinrobot.com
> Phone: +82-70-46577073



-- 
:wq

Google Germany GmbH
Dienerstr. 12
80331 München

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Sitz der Gesellschaft: Hamburg
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Tax ID:- 48/725/00206
VAT ID:- DE813741370