C++11 API and IDL generation

Hi Stefan,

You can use the option -language C++11 in rtiddsgen. That will enable the use of certain C++11 features in the API and the generated types and will generate a publisher and subscriber example using C++11 code. This is not the OMG IDL-to-C++11 mapping; it's the mapping mandated by the OMG DDS-PSM (you may find this blog post interesting: The Attack of the DDS C++ APIs)

Note that only a few platforms support C++11, what compiler are you using?

You can also see the C++11 example publisher and subscriber code in the API reference documentation (see [RTI Connext installation directory]/doc/html/api_cpp2/Foo_subscriber_8cxx-example.html).

Regards,

Alex

That's good to hear! Thank you for sharing the results of your test.

@Stefan: Good to know that portaility is working out for you. I noted that the names of the generated header files are not the same. I.e, TempControl.h vs TempControl_DCPS.h. We'll discuss this issue at the OMG. 

I'm curious about the type of "samples" in tssub.cpp. I expect dds::sub::LoanedSamples<tutorial::TempSensorType> to work as well as auto. LoanedSamples is meant to move samples out automatically and thereby avoid making copies. I hope, both vendors behave similarly.

In fact, using dds::sub::Sample will make a copy. We provide also rti::sub::LoanedSample which won't make a copy of the data. (Note, in the Early Access Release that class was named rti::sub::SampleRef)

I would suggest replacing the call to std::for_each with this loop, which (at least in the RTI implementation) won't make any copies:

 for (auto s : samples) {
     std::cout << s.data() << std::endl;
 } 

I would also point out that you could make the code fully standard by replacing the part that disables shared memory (an RTI extension) with a dds::core::QosProvider that loads that QoS setting from an XML file ( QosProvideris a standard class). In any case in the next RTI release disabling shared memory shouldn't be necessary.