[Rock-dev] Typelib Marshaling

[Janosch Machowinski]

I'm really puzzled about this one..
I already took a look into the rtt_typelib package.
The correct thing seems to be to call
handle.transport->setTypelibSample(handle.transportHandle, 
sample.data.data(), false);
but the it gives me a std:bad_alloc when it tries to
allocate the 'typlib' type (in this case base::samples::Frame) in
orogen_transports::OpaqueTypelibMarshaller<base::samples::frame::Frame, 
RTT::extras::ReadOnlyPointer<base::samples::frame::Frame>, 
0>::setTypelibSample(orogen_transports::TypelibMarshallerBase::Handle*, 
unsigned char*, bool)
Any Ideas ?
     Janosch


Am 01.09.2015 um 15:16 schrieb Sylvain Joyeux:
> Have a look at opaque handling in the mqueue transport, that should 
> show you how to do it.
>
> Sylvain
>
> On Tue, Sep 1, 2015 at 9:16 AM, Janosch Machowinski 
> <Janosch.Machowinski at dfki.de <mailto:Janosch.Machowinski at dfki.de>> wrote:
>
>     Hey,
>     we are using the typelib marshaler to implement a
>     second network transport. For Mashaling we use this code :
>              while (static_cast<RTT::base::InputPortInterface
>     *>(handle.port)->read(handle.sample, false) == RTT::NewData)
>                  gotNewData = true;
>
>              if (gotNewData) {
>                  Communication::DataContainer data;
>
>     handle.transport->refreshTypelibSample(handle.transportHandle);
>                  handle.transport->marshal(data.buffer,
>     handle.transportHandle);
>     which works fine.
>
>     In case that the port contains a RoPtr<base::samples::Frame> we get an
>     std::bad_alloc on
>     unmashaling using this code :
>
>              handle.transport->unmarshal(data.buffer,
>     handle.transportHandle);
>
>     The Handle here looks like this :
>          class PortHandle
>          {
>          public:
>              std::string name;
>              orogen_transports::TypelibMarshallerBase *transport;
>              RTT::base::DataSourceBase::shared_ptr sample;
>              orogen_transports::TypelibMarshallerBase::Handle
>     *transportHandle;
>              RTT::base::PortInterface *port;
>          };
>     And is set up using this code :
>              RTT::types::TypeInfo const *type = port->getTypeInfo();
>              curHandle.transport =
>     dynamic_cast<orogen_transports::TypelibMarshallerBase
>     *>(type->getProtocol(orogen_transports::TYPELIB_MARSHALLER_ID));
>              if (! curHandle.transport) {
>                  return false;
>              }
>
>              curHandle.transportHandle =
>     curHandle.transport->createSample();
>              curHandle.sample =
>     curHandle.transport->getDataSource(curHandle.transportHandle);
>
>     Any ideas what is wrong ? I suspect, that I need to initialize the
>     orocos sample somehow on the
>     receiving end, before unmarhsaling the data...
>     Greetings
>          Janosch
>
>     --
>       Dipl. Inf. Janosch Machowinski
>       SAR- & Sicherheitsrobotik
>
>       Universität Bremen
>       FB 3 - Mathematik und Informatik
>       AG Robotik
>       Robert-Hooke-Straße 1
>       28359 Bremen, Germany
>
>       Zentrale: +49 421 178 45-6611 <tel:%2B49%20421%20178%2045-6611>
>
>       Besuchsadresse der Nebengeschäftstelle:
>       Robert-Hooke-Straße 5
>       28359 Bremen, Germany
>
>       Tel.: +49 421 178 45-6614 <tel:%2B49%20421%20178%2045-6614>
>       Empfang: +49 421 178 45-6600 <tel:%2B49%20421%20178%2045-6600>
>       Fax: +49 421 178 45-4150 <tel:%2B49%20421%20178%2045-4150>
>       E-Mail: jmachowinski at informatik.uni-bremen.de
>     <mailto:jmachowinski at informatik.uni-bremen.de>
>
>       Weitere Informationen: http://www.informatik.uni-bremen.de/robotik
>
>     _______________________________________________
>     Rock-dev mailing list
>     Rock-dev at dfki.de <mailto:Rock-dev at dfki.de>
>     http://www.dfki.de/mailman/cgi-bin/listinfo/rock-dev
>
>


-- 
  Dipl. Inf. Janosch Machowinski
  SAR- & Sicherheitsrobotik

  Universität Bremen
  FB 3 - Mathematik und Informatik
  AG Robotik
  Robert-Hooke-Straße 1
  28359 Bremen, Germany
  
  Zentrale: +49 421 178 45-6611
  
  Besuchsadresse der Nebengeschäftstelle:
  Robert-Hooke-Straße 5
  28359 Bremen, Germany
  
  Tel.:    +49 421 178 45-6614
  Empfang: +49 421 178 45-6600
  Fax:     +49 421 178 45-4150
  E-Mail:  jmachowinski at informatik.uni-bremen.de

  Weitere Informationen: http://www.informatik.uni-bremen.de/robotik

-------------- nächster Teil --------------
Ein Dateianhang mit HTML-Daten wurde abgetrennt...
URL: http://www.dfki.de/pipermail/rock-dev/attachments/20150901/15c1ec8b/attachment-0001.htm