Struct DeviceTxToken 

pub struct DeviceTxToken<'a> { /* private fields */ }

TX token representing one outgoing frame from smoltcp.

The token borrows the device so it can enqueue the produced frame when smoltcp finishes writing into the provided buffer.

Trait Implementations

impl<'a> TxToken for DeviceTxToken<'a>

fn consume<R, F>(self, len: usize, f: F) -> R

where F: FnOnce(&mut [u8]) -> R,

Let smoltcp build one Ethernet frame and enqueue it for libkrun.

Flow:

smoltcp fills provided buffer
  -> adapter enqueues frame into host_to_guest
  -> sets frames_emitted
  -> poll loop later wakes the Unix-stream writer

The queue push is the handoff point. After that, this adapter no longer owns the frame bytes; the frame writer thread eventually serializes them onto the libkrun Unix stream.

fn set_meta(&mut self, meta: PacketMeta)

The Packet ID to be associated with the frame to be transmitted by this TxToken.