Struct RecvMeta

pub struct RecvMeta {
    pub addr: SocketAddr,
    pub len: usize,
    pub stride: usize,
    pub ecn: Option<EcnCodepoint>,
    pub dst_ip: Option<IpAddr>,
}

Metadata for a single buffer filled with bytes received from the network

This associated buffer can contain one or more datagrams, see stride.

Fields

addr: SocketAddr

The source address of the datagram(s) contained in the buffer

len: usize

The number of bytes the associated buffer has

stride: usize

The size of a single datagram in the associated buffer

When GRO (Generic Receive Offload) is used this indicates the size of a single datagram inside the buffer. If the buffer is larger, that is if len is greater then this value, then the individual datagrams contained have their boundaries at stride increments from the start. The last datagram could be smaller than stride.

ecn: Option<EcnCodepoint>

The Explicit Congestion Notification bits for the datagram(s) in the buffer

dst_ip: Option<IpAddr>

The destination IP address which was encoded in this datagram

Populated on platforms: Windows, Linux, Android, FreeBSD, OpenBSD, NetBSD, macOS, and iOS.

Trait Implementations

impl Clone for RecvMeta

fn clone(&self) -> RecvMeta

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RecvMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RecvMeta

fn default() -> Self

Constructs a value with arbitrary fields, intended to be overwritten

impl Copy for RecvMeta