A short sample on sending protobuf messages with C++ and CMake. The actual method of sending messages is irrelevant as long as you can guarantee the start and end address of a protobuf payload. This sample uses ZMQ.
The directory structure is a rough sketch, but I think the separation of
client, server, and common makes sense - especially putting the Protobuf
schema in common. The actual CMake structure could probably be improved
though.
nix develop
mkdir build
cd build
cmake .. && make
./src/pb-demo-server &
./src/pb-demo-client
If you don't use Nix, see flake.nix for assumed dependencies.