2021 09 02 Eclipse iceoryx developer meetup

Eclipse iceoryx developer meetup

Date: 2021/09/02

Time: 17:00 CET

Link: https://eclipse.zoom.us/j/95918504483?pwd=RWM5Y1pkeStKVDZsU09EY1hnclREUT09

Attendees

• Christian Eltzschig, Apex.AI
• Dietrich Krönke, Apex.AI
• Simon Hoinkis, Apex.AI
• Roman Sokolkov, Apex.AI
• Marika Lehmann, Apex.AI
• Indra

Agenda

1. General: Are there other agenda points?, 2 mins
2. Does anyone would like to contribute a feature?, 2 mins
3. Types with dynamic size, Christian see design document pull request, 10 mins
4. clang-tidy cleanup, next steps, Dietrich
5. ABI strategy, Dietrich
6. Stack allocator for std::vector, Indra

Minutes

3. & 6.

• Christian extends design document to explain the pitfalls of custom STL allocators.
• STL container are using internally pointers which are not inter process capable.
  • sending STL containers requires some kind of serialization within iceoryx

• Simon introduced custom clang-tidy rule for noexcept
  • noexcept is not reliable detected for destructors
  • noexcept(true) for destructors from C++17: https://en.cppreference.com/w/cpp/language/noexcept_spec
• clang-format CI target introduced by Roman
• clang-tidy should ignore google test warnings (TEST_F fixture missing copy/move ctor)
• current clang-tidy CI linter ignores unit/integrationtests
• clang-tidy c-binding cannot detect language C/C++ since the headers are used in C++ for the implementation and in C from the user code - one header two languages

• API/ABI stability is required from ROS2
• we can break the API/ABI with a patch release when it is coordinates with open robotics
• ROS2 rolling release allows API/ABI breakage but dependencies to iceoryx have to be taken care of
• ABI compatibility test for the CI would be perfect
• message: be careful with the release branches
• maybe introduce rolling release branch for ROS2 rolling release