Struct EventConsumer

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pub struct EventConsumer { /* private fields */ }
Available on Unix only.
Expand description

EventConsumer This is a generic event consumer that can be used with eventfd or pipefd. It allows reading a value from the file descriptor to consume an event.

§Examples

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

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impl EventConsumer

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

Read a value from the EventConsumer.

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

Clone this EventConsumer.

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impl AsRawFd for EventConsumer

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fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor. Read more
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impl Debug for EventConsumer

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

Formats the value using the given formatter. Read more
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impl FromRawFd for EventConsumer

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unsafe fn from_raw_fd(fd: RawFd) -> Self

Constructs a new instance of Self from the given raw file descriptor. Read more
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impl IntoRawFd for EventConsumer

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fn into_raw_fd(self) -> RawFd

Consumes this object, returning the raw underlying file descriptor. Read more

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.