//! Guest memory RX injection engine for VirtIO-net.
//!
//! Receives raw Ethernet frames via a crossbeam channel and injects
//! them into a guest virtio-net RX queue by writing directly to
//! guest memory (mmap'd region). Runs on a dedicated OS thread,
//! completely independent of the tokio async runtime.
/// Back-compat re-export: `GuestMemWriter` moved to `arcbox-virtio` so it
/// can be shared by every VirtIO device, not just RX injection.