Ring buffer RT component.

I've had an idea recently of building a ring buffer component for bringing external motion commands to linuxcnc. Reading the Shmem examples on rtapi I surmise that the correct way would be to make a component that opens a shared memory space that houses the ring buffer. Which is then accessed and filled from user space. I also found This API for generic ring buffer implementation in C and uses shmem and memcpy for its read/write operations.

Now I'm very new at C and have no experience in memory management and am wondering is this a valid way to go for realtime component? I tried looking at the other examples(mainly streamer.c component) but nothing really pointed me to the right direction. Also in the shmem example i see they define a struct as the shared memory content. I assume I would store the bytearray of the ring buffer inside the struct? I've also looked at this library as an example.

Any pointers or comments? This is all a bit much coming from python.

Edit: i made a GitHub repo for it and might as well link it here: github.com/Roiki11/lcnc-ringbuffer

You might look at porting the Machinekit ring buffer

I did try but since I'm not a C developer I have no actual idea where that code even is or what it looks like. I'd probably use machinekit if it had any documentation or you could get any help wirh the code. Machinekit is pretty much dead it seems.

I find this approach is a bit easier to me since it contained into one separate module.