Communication CFT API Mockup Kickoff (C++) [2025-03-18]

[LittleHuba]

Participants

@LittleHuba
@mishu-dev, Mihai Haraga
@alexandruiulian10, Iulian Alexandru
Andreas Beetz

Agenda

1. Target setting
   https://github.com/orgs/eclipse-score/discussions/542
2. GAP analysis for C++
   • Runtime becomes RAII
   • Communication Elements become RAII (focus on Events and fields for now)
   • Builder pattern

      mw::com::RuntimeBuilder runtime_builder{};
mw::com::RuntimeBuilder runtime_builder_with_config = runtime_builder.read_config_from_file("/tmp/mw_com_config.json")
                                                                     .foo()
                                                                     .bar();
mw::com::Runtime runtime = runtime_builder_with_config.build();

score::Result<mw::com::ProxyBuilder<Interface>> proxy_builder = runtime.get_proxy_builder<Interface>(...);
mw::com::Proxy<Interface> proxy = proxy_builder.value().build();

score::Result<mw::com::SomeEventSubscriber> event_builder = proxy.get_subscriber_builder<decltype(proxy)::SomeEvent>(...);
event_builder.value().build();

• Asynchronous API must remain workable but is not focus for improvement
• For now we focus on making API RAII-style and the builder pattern
  Rest will follow in a second step

3. Roadmap planning
   • Iulian and Mihai are available

• Familiarize with mw::com API (2 weeks)
  https://github.com/eclipse-score/inc_mw_com/tree/main/docs/features/communication/ipc
  https://github.com/eclipse-score/inc_mw_com/tree/main/mw/com/design
  https://github.com/eclipse-score/inc_mw_com/blob/main/mw/com/types.h
  https://github.com/eclipse-score/inc_mw_com/blob/main/mw/com/test/bigdata/big_datatype_application.cpp
  https://github.com/eclipse-score/inc_mw_com/blob/main/mw/com/test/common_test_resources/sample_sender_receiver.cpp
• Make runtime RAII (namespace, constructors adjustment necessary)
• Create builder for runtime

Meeting Minutes