Trait TxToken

pub trait TxToken {
    // Required method
    fn consume<R, F>(self, len: usize, f: F) -> R
       where F: FnOnce(&mut [u8]) -> R;

    // Provided method
    fn set_meta(&mut self, meta: PacketMeta) { ... }
}

A token to transmit a single network packet.

Required Methods

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

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

Consumes the token to send a single network packet.

This method constructs a transmit buffer of size len and calls the passed closure f with a mutable reference to that buffer. The closure should construct a valid network packet (e.g. an ethernet packet) in the buffer. When the closure returns, the transmit buffer is sent out.

Provided Methods

fn set_meta(&mut self, meta: PacketMeta)

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

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors