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by Steven Goodwin At: FOSDEM 2019 https://video.fosdem.org/2019/H.2215/dbus_asio.webm Modern software needs inter-process communication. Often through DBus. But the state of the existing libraries are more perfunctory, than active. Consequently, the limits of these libraries become apparent when you go beyond a single thread, are limited to standard libraries, or use anything other than a classical event loop. In this talk we cover the journey, from the realisation of the problem, the guiding development tenets, to the implementation of a library that covers everything from the low-level protocol and high-level C++ interface. We start with a breakdown on the whys and wherefores of the choices made, be it C++11 or C++14, to fork or not to fork existing code, or whether boost::asio should be used. We continue with a discussion on the implementation details, such as the pitfalls in serial protocols, zero-length strings, non-aligned data, and the problems in C++ over C. We end up with production-quality code, the politics of naming, and a question: will this be the final DBus library we need to write? Background: D-Bus is an inter-process mechanism that allows communication between multiple programs running on the same machine. Asio is a cross-platform C++ library for network and low-level I/O programming. This talk covers how and why the former was implemented using the latter. Room: H.2215 (Ferrer) Scheduled start: 2019-02-03 13:20:00+01 Source: https://www.youtube.com/watch?v=LVxPs0MONl0 Uploader: FOSDEM