Struct EpollEvent

pub struct EpollEvent(/* private fields */);

Wrapper over ‘libc::epoll_event’.

Implementations

impl EpollEvent

pub fn new(events: EventSet, data: u64) -> Self

Create a new epoll_event instance.

Arguments

events - contains an event mask. data - a user data variable. data field can be a fd on which we want to monitor the events specified by events.

Examples

extern crate vmm_sys_util;
use vmm_sys_util::epoll::{EpollEvent, EventSet};

let event = EpollEvent::new(EventSet::IN, 2);

pub fn events(&self) -> u32

Returns the events from ‘libc::epoll_event’.

Examples

extern crate vmm_sys_util;
use vmm_sys_util::epoll::{EpollEvent, EventSet};

let event = EpollEvent::new(EventSet::IN, 2);
assert_eq!(event.events(), 1);

pub fn event_set(&self) -> EventSet

Returns the EventSet corresponding to epoll_event.events.

Panics

Panics if libc::epoll_event contains invalid events.

Examples

extern crate vmm_sys_util;
use vmm_sys_util::epoll::{EpollEvent, EventSet};

let event = EpollEvent::new(EventSet::IN, 2);
assert_eq!(event.event_set(), EventSet::IN);

pub fn data(&self) -> u64

Returns the data from the libc::epoll_event.

Examples

extern crate vmm_sys_util;
use vmm_sys_util::epoll::{EpollEvent, EventSet};

let event = EpollEvent::new(EventSet::IN, 2);
assert_eq!(event.data(), 2);

pub fn fd(&self) -> RawFd

Converts the libc::epoll_event data to a RawFd.

This conversion is lossy when the data does not correspond to a RawFd (data does not fit in a i32).

Examples

extern crate vmm_sys_util;
use vmm_sys_util::epoll::{EpollEvent, EventSet};

let event = EpollEvent::new(EventSet::IN, 2);
assert_eq!(event.fd(), 2);

Trait Implementations

impl Clone for EpollEvent

fn clone(&self) -> EpollEvent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EpollEvent

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

Formats the value using the given formatter.

impl Default for EpollEvent

fn default() -> Self

Returns the “default value” for a type.

impl Deref for EpollEvent

type Target = epoll_event

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Copy for EpollEvent