Struct io_uring::cqueue::Entry

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#[repr(C)]
pub struct Entry(_);
Expand description

A 16-byte completion queue entry (CQE), representing a complete I/O operation.

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impl Entry

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pub fn result(&self) -> i32

The operation-specific result code. For example, for a Read operation this is equivalent to the return value of the read(2) system call.

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pub fn user_data(&self) -> u64

The user data of the request, as set by Entry::user_data on the submission queue event.

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pub fn flags(&self) -> u32

Metadata related to the operation.

This is currently used for:

  • Storing the selected buffer ID, if one was selected. See BUFFER_SELECT for more info.

Trait Implementations§

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impl Clone for Entry

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fn clone(&self) -> Entry

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Entry

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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 From<Entry32> for Entry

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fn from(entry32: Entry32) -> Self

Converts to this type from the input type.
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impl EntryMarker for Entry

Auto Trait Implementations§

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impl RefUnwindSafe for Entry

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impl Send for Entry

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impl Sync for Entry

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impl Unpin for Entry

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impl UnwindSafe for Entry

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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 Twhere U: From<T>,

const: unstable · source§

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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.