Running as C library

[Menduist]

One of Nim strength is C compatibility, and with C compatibility comes compatibility with most other languages through FFI

It would be great to create a C library out of nim-libp2p, which can then be used from other languages (ie python, which is missing a libp2p implementation)

I see 2 alternatives to do so:

Macro based
For instance genny. This project is used to generate python & other wrappers automatically, for instance pixie-python.
However, genny lacks multiple features, and it's not clear how async integration should be done

Manually
For instance, libwaku (examples in various languages: link)

[mratsim]

For async, you might want to have all the procedures that return a future handle use an Async suffix, and you expose wait_mytype(future_mytype* handle).

This is how Nvidia does it for async Cuda procedures.