Struct EventNotifier

pub struct EventNotifier { /* private fields */ }

Available on Unix only.

EventNotifier This is a generic event notifier that can be used with eventfd or pipefd. It allows writing a value to the file descriptor to notify an event.

Examples

use std::os::fd::FromRawFd;
use std::os::unix::io::IntoRawFd;
use vmm_sys_util::event::EventNotifier;
let (_, writer) = std::io::pipe().expect("Failed to create pipe");
let notifier = unsafe { EventNotifier::from_raw_fd(writer.into_raw_fd()) };

Implementations

impl EventNotifier

pub fn notify(&self) -> Result<(), Error>

Write a value to the EventNotifier’s fd Writing 1 to fd is for compatibility with Eventfd

pub fn try_clone(&self) -> Result<EventNotifier, Error>

Clone this EventNotifier.

Trait Implementations

impl AsRawFd for EventNotifier

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl Debug for EventNotifier

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

Formats the value using the given formatter.

impl FromRawFd for EventNotifier

unsafe fn from_raw_fd(fd: RawFd) -> Self

Constructs a new instance of Self from the given raw file descriptor.

impl IntoRawFd for EventNotifier

fn into_raw_fd(self) -> RawFd

Consumes this object, returning the raw underlying file descriptor.