Struct mio::sys::unix::waker::Waker

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pub(crate) struct Waker {
    fd: File,
}
Expand description

Waker backed by eventfd.

eventfd is effectively an 64 bit counter. All writes must be of 8 bytes (64 bits) and are converted (native endian) into an 64 bit unsigned integer and added to the count. Reads must also be 8 bytes and reset the count to 0, returning the count.

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§fd: File

Implementations§

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impl Waker

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pub(crate) fn new(selector: &Selector, token: Token) -> Result<Waker>

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pub(crate) fn new_unregistered() -> Result<Waker>

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pub(crate) fn wake(&self) -> Result<()>

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pub(crate) fn ack_and_reset(&self)

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fn reset(&self) -> Result<()>

Reset the eventfd object, only need to call this if wake fails.

Trait Implementations§

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impl AsRawFd for Waker

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fn as_raw_fd(&self) -> RawFd

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

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Waker

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impl RefUnwindSafe for Waker

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impl Send for Waker

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impl Sync for Waker

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impl Unpin for Waker

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impl UnwindSafe for Waker

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.