I always dreamed with a standardized, cross-platform, cross-arch, (sort of) automatic, non-blocking, DMA-based memory copying functions (like a special memcpy)

I always dreamed with a standardized, cross-platform, cross-arch, (sort of) automatic, non-blocking, DMA-based memory copying functions (like a special memcpy) for duplicating or passing big chunks of memory (like for example, H.264 frames or network packets, from a driver to user space).