Can I use the APIs of RustDDS in a C++ project?

[ehgus607]

I am working on a project to create a DDS network automatically by creating a wrapping code in API for each DDS vendor and reading files containing the information of the DDS network. So I try make a wrapping code using API in RustDDS, but a problem is that this project is in C++. I found out that Rust is compatible with C++, is there any way to use Rust DDS' APIs for C++ projects? I'm not sure because I'm new to Rust.

The APIs I'm going to use are functions that simply create and delete nodes (e.g., create_subscriber or create_publisher).

If there is any information that can help me, I would appreciate it.
Thank you

[jhelovuo]

I found out that Rust is compatible with C++, is there any way to use Rust DDS' APIs for C++ projects? I'm not sure because I'm new to Rust.

Likely there is a way, but AFAIK you would be the first person to try that.

The APIs I'm going to use are functions that simply create and delete nodes (e.g., create_subscriber or create_publisher).

If there is any information that can help me, I would appreciate it. Thank you

"Node" is not a DDS concept. Maybe you are thinking of ROS 2 Nodes? In case yes, then the following may help you:

• Study ROS 2 design documentation on the relationship of ROS concepts (e.g. Node, Publisher) and DDS concepts (DomainParticipant, Publisher, DataWriter).
• Note that the closest DDS analog to ROS2 Publisher is not a DDS Publisher, but a DataWriter. A DDS Publisher is something that does not exist at all in the ROS model of things.

[ehgus607]

Hi @jhelovuo

Thank you for kindly explaining.

I just want to use the APIs implemented in RustDDS for my C++ project. I don't consider ROS. "Node" that I mentioned means DDS entities such as DomainParticipant, Publisher, datawriter, etc.

Likely there is a way, but AFAIK you would be the first person to try that.

But from the answer, RustDDS doesn't seem to be compatible with C++ now.
I found out that Rust has an FFI, so if I apply it to RustDDS, it seems to be compatible with C++. Would this be difficult?
If this approach is a work that takes a long time, I'll just make a project with Rust.

Thank you for your response and if there is any information that can help with my project, I would appreciate anything.

Thank you