Struct TcpZeroCopySend 

pub struct TcpZeroCopySend { /* private fields */ }

TCP zero-copy send combining scatter-gather with TCP segmentation.

Collects data into a scatter-gather list and segments it into TCP MSS-sized chunks for transmission, avoiding intermediate copies where possible.

Implementations

impl TcpZeroCopySend

pub fn new(socket_id: usize, remote: SocketAddr) -> Self

Create a new TCP zero-copy send operation.

pub fn set_mss(&mut self, mss: usize)

Set custom MSS (for path MTU discovery)

pub fn add_buffer(&mut self, phys_addr: u64, length: usize)

Add data from a kernel buffer (physical address)

pub fn add_user_buffer( &mut self, user_addr: u64, length: usize, ) -> Result<(), KernelError>

Add data from a user buffer (translates virtual to physical)

pub fn execute(&self) -> Result<usize, KernelError>

Execute the zero-copy TCP send.

Assembles the scatter-gather data and sends it through the TCP stack, which handles segmentation into MSS-sized chunks, sequence numbers, and retransmission.

pub fn total_length(&self) -> usize

Get total data size queued for sending

pub fn segment_count(&self) -> usize

Get the number of scatter-gather segments