RcuCell

Struct RcuCell 

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pub struct RcuCell<T: Send + Sync + 'static> { /* private fields */ }
Expand description

An RCU (Read-Copy-Update) version of Cell.

This Cell can be read from multiple threads concurrently without blocking. When the Cell is written, reads may continue to see the old value of the Cell for some period of time.

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impl<T: Send + Sync + 'static> RcuCell<T>

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pub fn new(data: T) -> Self

Create a new RCU Cell from a value.

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pub fn read(&self) -> RcuReadGuard<T>

Read the value of the RCU Cell.

The object referenced by the RCU Cell will remain valid until the RcuReadGuard is dropped. However, another thread running concurrently might see a different value for the object.

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pub fn as_ref<'a>(&self, scope: &'a RcuReadScope) -> &'a T

Returns a reference to the value of the RCU Cell.

The object referenced by the RCU Cell will remain valid until the RcuReadGuard is dropped. However, another thread running concurrently might see a different value for the object.

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pub fn update(&self, data: T)

Write the value of the RCU Cell.

Concurrent readers may continue to see the old value of the Cell until the RCU state machine has made sufficient progress to ensure that no concurrent readers are holding read guards.

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impl<T: Clone + Send + Sync + 'static> Clone for RcuCell<T>

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fn clone(&self) -> Self

Returns a duplicate 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<T: Debug + Send + Sync + 'static> Debug for RcuCell<T>

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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<T: Default + Send + Sync + 'static> Default for RcuCell<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T: Send + Sync + 'static> Drop for RcuCell<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<T: Send + Sync + 'static> From<Box<T>> for RcuCell<T>

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fn from(value: Box<T>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<T> !Freeze for RcuCell<T>

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impl<T> RefUnwindSafe for RcuCell<T>

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impl<T> Send for RcuCell<T>

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impl<T> Sync for RcuCell<T>

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impl<T> Unpin for RcuCell<T>

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impl<T> UnwindSafe for RcuCell<T>
where T: RefUnwindSafe,

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where 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 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.