Trait Writer 

pub trait Writer: Send {
    // Required method
    fn send_frame(&mut self, data: &[u8]) -> Result<()>;

    // Provided methods
    fn send_frame_confirmed(&mut self, data: &[u8]) -> Result<()> { ... }
    fn send_frames(&mut self, frames: &[Vec<u8>]) -> Result<()> { ... }
    fn flush(&mut self) -> Result<()> { ... }
    fn egress_control(&self) -> Option<EgressControl> { ... }
    fn shutdown(&mut self) { ... }
}

Writable end of an interface. Held by the driver.

Each implementation wraps a socket + framing.

Required Methods

fn send_frame(&mut self, data: &[u8]) -> Result<()>

Provided Methods

fn send_frame_confirmed(&mut self, data: &[u8]) -> Result<()>

Write one frame without silently dropping it. WouldBlock means the frame was accepted and flush must finish it before success is reported. Writers with intentional drop policies must override this method.

fn send_frames(&mut self, frames: &[Vec<u8>]) -> Result<()>

fn flush(&mut self) -> Result<()>

Resume bytes accepted by a previous call that returned WouldBlock.

fn egress_control(&self) -> Option<EgressControl>

Share an exact byte admission budget with the async producer when this writer uses dataplane egress control.

fn shutdown(&mut self)

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Writer for UdpDirectWriter