A demo showing how to use an asynchronous Rust library from other languages via FFI. Among other things, this requires the implementation of an async Rust runtime in the target language.

• External I/O, i.e. Networking, provided by the library consumer

  • no I/O in library itself

• Usage on mobile clients (Cordova-based), servers and embedded

• Pull-only data access

  This was a constraint from the real project. Also, it precludes the need for circular references between the client, the library and the transport layer.

Running make should be sufficient, given all dependencies (see next section) are available.

The cppclient demo uses the following system dependencies:

• meson
• Boost.Asio 1.74.0+

On Ubuntu, install these dependencies:

build-essential clang-format clang-tidy libboost-dev meson

The rust code is checked with clippy and rustfmt, they can be installed via rustup.