Struct NullBackend 

pub struct NullBackend;

A no-op polling backend that never returns events.

Useful for testing timer logic and client management without actual I/O.

Trait Implementations

impl Debug for NullBackend

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

Formats the value using the given formatter.

impl Default for NullBackend

fn default() -> Self

Returns the “default value” for a type.

impl PollBackend for NullBackend

fn register( &mut self, _fd: RawFd, _events: u32, _client_id: ClientId, ) -> Result<()>

Register a file descriptor for events

fn modify( &mut self, _fd: RawFd, _events: u32, _client_id: ClientId, ) -> Result<()>

Modify event registration for a file descriptor

fn unregister(&mut self, _fd: RawFd) -> Result<()>

Unregister a file descriptor

fn wait(&mut self, _timeout: Option<f64>) -> Result<Vec<(RawFd, u32, ClientId)>>

Wait for events with optional timeout (in seconds)

fn name(&self) -> &str

Get the backend name